CN118085550A - Smashing-free brick waterproof agent and application thereof in toilet water leakage repair - Google Patents
Smashing-free brick waterproof agent and application thereof in toilet water leakage repair Download PDFInfo
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- CN118085550A CN118085550A CN202410364345.9A CN202410364345A CN118085550A CN 118085550 A CN118085550 A CN 118085550A CN 202410364345 A CN202410364345 A CN 202410364345A CN 118085550 A CN118085550 A CN 118085550A
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- brick
- marble
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 74
- 239000003795 chemical substances by application Substances 0.000 title claims abstract description 68
- 239000011449 brick Substances 0.000 title claims abstract description 44
- 230000008439 repair process Effects 0.000 title claims abstract description 11
- 239000000919 ceramic Substances 0.000 claims abstract description 42
- 239000000839 emulsion Substances 0.000 claims abstract description 42
- 238000004078 waterproofing Methods 0.000 claims abstract description 25
- 238000010276 construction Methods 0.000 claims abstract description 20
- 239000002562 thickening agent Substances 0.000 claims abstract description 13
- 239000004094 surface-active agent Substances 0.000 claims abstract description 11
- 239000000654 additive Substances 0.000 claims abstract description 7
- 230000000996 additive effect Effects 0.000 claims abstract description 7
- 239000002994 raw material Substances 0.000 claims abstract description 7
- 239000011248 coating agent Substances 0.000 claims abstract description 5
- 238000000576 coating method Methods 0.000 claims abstract description 5
- 239000011259 mixed solution Substances 0.000 claims description 48
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 claims description 36
- 238000003756 stirring Methods 0.000 claims description 34
- 239000004579 marble Substances 0.000 claims description 33
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 30
- 229910021485 fumed silica Inorganic materials 0.000 claims description 26
- 230000002209 hydrophobic effect Effects 0.000 claims description 26
- 238000004140 cleaning Methods 0.000 claims description 22
- 238000002360 preparation method Methods 0.000 claims description 20
- ZMANZCXQSJIPKH-UHFFFAOYSA-N Triethylamine Chemical compound CCN(CC)CC ZMANZCXQSJIPKH-UHFFFAOYSA-N 0.000 claims description 18
- 239000006185 dispersion Substances 0.000 claims description 18
- 239000007788 liquid Substances 0.000 claims description 17
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims description 12
- ORTQZVOHEJQUHG-UHFFFAOYSA-L copper(II) chloride Chemical compound Cl[Cu]Cl ORTQZVOHEJQUHG-UHFFFAOYSA-L 0.000 claims description 12
- 239000000203 mixture Substances 0.000 claims description 10
- KFZMGEQAYNKOFK-UHFFFAOYSA-N Isopropanol Chemical compound CC(C)O KFZMGEQAYNKOFK-UHFFFAOYSA-N 0.000 claims description 9
- 238000002156 mixing Methods 0.000 claims description 9
- 239000004205 dimethyl polysiloxane Substances 0.000 claims description 8
- 238000001035 drying Methods 0.000 claims description 8
- 229920000435 poly(dimethylsiloxane) Polymers 0.000 claims description 8
- -1 polydimethylsiloxane Polymers 0.000 claims description 8
- UPMLOUAZCHDJJD-UHFFFAOYSA-N 4,4'-Diphenylmethane Diisocyanate Chemical compound C1=CC(N=C=O)=CC=C1CC1=CC=C(N=C=O)C=C1 UPMLOUAZCHDJJD-UHFFFAOYSA-N 0.000 claims description 7
- 229920002134 Carboxymethyl cellulose Polymers 0.000 claims description 7
- 239000001768 carboxy methyl cellulose Substances 0.000 claims description 7
- 235000010948 carboxy methyl cellulose Nutrition 0.000 claims description 7
- 239000008112 carboxymethyl-cellulose Substances 0.000 claims description 7
- GVGUFUZHNYFZLC-UHFFFAOYSA-N dodecyl benzenesulfonate;sodium Chemical compound [Na].CCCCCCCCCCCCOS(=O)(=O)C1=CC=CC=C1 GVGUFUZHNYFZLC-UHFFFAOYSA-N 0.000 claims description 7
- 238000004519 manufacturing process Methods 0.000 claims description 7
- 229920000909 polytetrahydrofuran Polymers 0.000 claims description 7
- 229940080264 sodium dodecylbenzenesulfonate Drugs 0.000 claims description 7
- PTBDIHRZYDMNKB-UHFFFAOYSA-N 2,2-Bis(hydroxymethyl)propionic acid Chemical compound OCC(C)(CO)C(O)=O PTBDIHRZYDMNKB-UHFFFAOYSA-N 0.000 claims description 6
- WERYXYBDKMZEQL-UHFFFAOYSA-N butane-1,4-diol Chemical compound OCCCCO WERYXYBDKMZEQL-UHFFFAOYSA-N 0.000 claims description 6
- 229960003280 cupric chloride Drugs 0.000 claims description 6
- 238000005520 cutting process Methods 0.000 claims description 6
- 239000012153 distilled water Substances 0.000 claims description 6
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 claims description 6
- 230000000903 blocking effect Effects 0.000 claims description 4
- 238000000861 blow drying Methods 0.000 claims description 4
- 239000004568 cement Substances 0.000 claims description 4
- 239000012299 nitrogen atmosphere Substances 0.000 claims description 4
- 239000012744 reinforcing agent Substances 0.000 claims description 4
- 230000003014 reinforcing effect Effects 0.000 claims description 4
- 230000002940 repellent Effects 0.000 claims description 4
- 239000005871 repellent Substances 0.000 claims description 4
- FXHOOIRPVKKKFG-UHFFFAOYSA-N N,N-Dimethylacetamide Chemical compound CN(C)C(C)=O FXHOOIRPVKKKFG-UHFFFAOYSA-N 0.000 claims description 3
- 239000013078 crystal Substances 0.000 claims description 3
- 238000007689 inspection Methods 0.000 claims description 3
- 239000002159 nanocrystal Substances 0.000 claims description 3
- 229920000663 Hydroxyethyl cellulose Polymers 0.000 claims description 2
- 239000004354 Hydroxyethyl cellulose Substances 0.000 claims description 2
- 229920002153 Hydroxypropyl cellulose Polymers 0.000 claims description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 2
- DBMJMQXJHONAFJ-UHFFFAOYSA-M Sodium laurylsulphate Chemical compound [Na+].CCCCCCCCCCCCOS([O-])(=O)=O DBMJMQXJHONAFJ-UHFFFAOYSA-M 0.000 claims description 2
- 235000019387 fatty acid methyl ester Nutrition 0.000 claims description 2
- 235000019447 hydroxyethyl cellulose Nutrition 0.000 claims description 2
- 239000001863 hydroxypropyl cellulose Substances 0.000 claims description 2
- 235000010977 hydroxypropyl cellulose Nutrition 0.000 claims description 2
- 229920000609 methyl cellulose Polymers 0.000 claims description 2
- 239000001923 methylcellulose Substances 0.000 claims description 2
- 235000010981 methylcellulose Nutrition 0.000 claims description 2
- 229910052710 silicon Inorganic materials 0.000 claims description 2
- 239000010703 silicon Substances 0.000 claims description 2
- 238000005507 spraying Methods 0.000 claims description 2
- 239000004567 concrete Substances 0.000 abstract description 50
- 238000000034 method Methods 0.000 abstract description 18
- 230000008569 process Effects 0.000 abstract description 7
- 239000012466 permeate Substances 0.000 abstract description 5
- 238000002347 injection Methods 0.000 abstract description 2
- 239000007924 injection Substances 0.000 abstract description 2
- 239000004570 mortar (masonry) Substances 0.000 abstract description 2
- 230000003075 superhydrophobic effect Effects 0.000 abstract description 2
- 238000012360 testing method Methods 0.000 description 36
- 238000010257 thawing Methods 0.000 description 14
- 239000004814 polyurethane Substances 0.000 description 10
- 239000011148 porous material Substances 0.000 description 8
- 230000008014 freezing Effects 0.000 description 7
- 238000007710 freezing Methods 0.000 description 7
- 230000003993 interaction Effects 0.000 description 7
- 229920000642 polymer Polymers 0.000 description 7
- 238000010521 absorption reaction Methods 0.000 description 6
- 235000013870 dimethyl polysiloxane Nutrition 0.000 description 6
- 239000007787 solid Substances 0.000 description 6
- 238000010998 test method Methods 0.000 description 6
- 239000007864 aqueous solution Substances 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 239000011521 glass Substances 0.000 description 4
- 230000007774 longterm Effects 0.000 description 4
- 229920002635 polyurethane Polymers 0.000 description 4
- 239000011347 resin Substances 0.000 description 4
- 229920005989 resin Polymers 0.000 description 4
- BPQQTUXANYXVAA-UHFFFAOYSA-N Orthosilicate Chemical compound [O-][Si]([O-])([O-])[O-] BPQQTUXANYXVAA-UHFFFAOYSA-N 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 3
- 238000004378 air conditioning Methods 0.000 description 3
- 230000001680 brushing effect Effects 0.000 description 3
- 238000005336 cracking Methods 0.000 description 3
- 238000007598 dipping method Methods 0.000 description 3
- 238000005553 drilling Methods 0.000 description 3
- 239000003292 glue Substances 0.000 description 3
- CXQXSVUQTKDNFP-UHFFFAOYSA-N octamethyltrisiloxane Chemical group C[Si](C)(C)O[Si](C)(C)O[Si](C)(C)C CXQXSVUQTKDNFP-UHFFFAOYSA-N 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 239000003513 alkali Substances 0.000 description 2
- 239000012298 atmosphere Substances 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 238000011049 filling Methods 0.000 description 2
- 238000007667 floating Methods 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 230000008595 infiltration Effects 0.000 description 2
- 238000001764 infiltration Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 229920001296 polysiloxane Polymers 0.000 description 2
- 239000002243 precursor Substances 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 239000003469 silicate cement Substances 0.000 description 2
- 238000002791 soaking Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- NIXOWILDQLNWCW-UHFFFAOYSA-N Acrylic acid Chemical class OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 239000011398 Portland cement Substances 0.000 description 1
- 229910001294 Reinforcing steel Inorganic materials 0.000 description 1
- BLRPTPMANUNPDV-UHFFFAOYSA-N Silane Chemical compound [SiH4] BLRPTPMANUNPDV-UHFFFAOYSA-N 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 239000002585 base Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000008367 deionised water Substances 0.000 description 1
- 229910021641 deionized water Inorganic materials 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 150000002009 diols Chemical class 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000012458 free base Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000011396 hydraulic cement Substances 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 238000013508 migration Methods 0.000 description 1
- 230000005012 migration Effects 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
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- 230000035699 permeability Effects 0.000 description 1
- 238000004987 plasma desorption mass spectroscopy Methods 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 239000003755 preservative agent Substances 0.000 description 1
- 230000002335 preservative effect Effects 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 229910000077 silane Inorganic materials 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
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- 230000003746 surface roughness Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
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Classifications
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/66—Sealings
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/30—Low-molecular-weight compounds
- C08G18/34—Carboxylic acids; Esters thereof with monohydroxyl compounds
- C08G18/348—Hydroxycarboxylic acids
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/40—High-molecular-weight compounds
- C08G18/48—Polyethers
- C08G18/4854—Polyethers containing oxyalkylene groups having four carbon atoms in the alkylene group
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/40—High-molecular-weight compounds
- C08G18/61—Polysiloxanes
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
- C08G18/65—Low-molecular-weight compounds having active hydrogen with high-molecular-weight compounds having active hydrogen
- C08G18/66—Compounds of groups C08G18/42, C08G18/48, or C08G18/52
- C08G18/6666—Compounds of group C08G18/48 or C08G18/52
- C08G18/6692—Compounds of group C08G18/48 or C08G18/52 with compounds of group C08G18/34
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G18/00—Polymeric products of isocyanates or isothiocyanates
- C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
- C08G18/70—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
- C08G18/72—Polyisocyanates or polyisothiocyanates
- C08G18/74—Polyisocyanates or polyisothiocyanates cyclic
- C08G18/76—Polyisocyanates or polyisothiocyanates cyclic aromatic
- C08G18/7657—Polyisocyanates or polyisothiocyanates cyclic aromatic containing two or more aromatic rings
- C08G18/7664—Polyisocyanates or polyisothiocyanates cyclic aromatic containing two or more aromatic rings containing alkylene polyphenyl groups
- C08G18/7671—Polyisocyanates or polyisothiocyanates cyclic aromatic containing two or more aromatic rings containing alkylene polyphenyl groups containing only one alkylene bisphenyl group
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L75/00—Compositions of polyureas or polyurethanes; Compositions of derivatives of such polymers
- C08L75/04—Polyurethanes
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/66—Sealings
- E04B1/68—Sealings of joints, e.g. expansion joints
- E04B1/6801—Fillings therefor
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/66—Sealings
- E04B1/68—Sealings of joints, e.g. expansion joints
- E04B1/6806—Waterstops
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G23/00—Working measures on existing buildings
- E04G23/02—Repairing, e.g. filling cracks; Restoring; Altering; Enlarging
- E04G23/0203—Arrangements for filling cracks or cavities in building constructions
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Organic Chemistry (AREA)
- Polymers & Plastics (AREA)
- Health & Medical Sciences (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Electrochemistry (AREA)
- Mechanical Engineering (AREA)
- Sealing Material Composition (AREA)
Abstract
The invention discloses a smashing-free brick waterproof agent and application thereof in toilet water leakage repair. The smashing-free brick waterproof agent comprises the following raw material components in parts by weight: 60-70 parts of organosilicon emulsion, 1-7 parts of additive, 1-2 parts of thickener and 1-2 parts of surfactant, and the raw material components are mixed and stirred to obtain the non-smashing brick waterproofing agent. The invention also provides an application of the waterproof agent in water leakage repair of a bathroom, the smashing-free brick waterproof agent permeates into the ceramic tile through the gaps of the ceramic tile, and the waterproof agent is adhered to the surface of concrete mortar to form a super-hydrophobic layer and permeates into the gaps and micropores of the concrete, so that the permeation of water molecules is obviously reduced, and the waterproof performance of the bathroom is improved. The invention abandons the traditional construction modes of disassembly, coating, smashing and injection, realizes the smash-free tile and low damage in the water leakage repairing construction process of the bathroom, has quick repairing result, saves time and money, and has positive influence on the environment and the construction period.
Description
Technical Field
The invention relates to the field of waterproof materials, in particular to a smashing-free brick waterproof agent and application thereof in water leakage repair of a bathroom.
Background
The toilet is an indispensable space in our daily life, and the use frequency is extremely high, so the waterproof performance is particularly important. However, in the actual construction process, the waterproof quality of the bathroom is often neglected, which often results in the occurrence of water leakage problems. Once water leakage occurs in a bathroom, finding the water leakage point becomes a difficult task, and the process is time-consuming, labor-consuming and high in cost, and the tiles in the bathroom are usually required to be removed, the waterproof layer is made again, and the tiles are restored. Moreover, if the waterproof layer material is not suitable, such as water bubble resistance, the water leakage problem can be repeatedly caused, and the use effect is seriously affected.
Therefore, developing a waterproof technology that can effectively stop water without removing tiles would have great market appeal. The technology can solve the problem of water leakage, save a great deal of manpower, material resources and financial resources, shorten the maintenance period and reduce the cost. Meanwhile, if the technology can ensure that the leakage is avoided for a long time, the technology can meet the requirements of users and is popular in the market. Therefore, research and development of this new waterproofing technology will become an important development direction of the future waterproofing market.
CN112746677a discloses a brick-breaking-free quick repair system and method for kitchen and toilet, the invention provides a brick-breaking-free quick repair system and method for kitchen and toilet, the construction method for the brick-breaking-free quick repair system for kitchen and toilet comprises the following steps: grouting the leakage points, determining no water pipe or line pipe below the ceramic tile at the corresponding position near the leakage points, perforating the ceramic tile by using a phi 14 glass perforating device, taking out for standby (sticking back during joint filling), drilling a hole to a bottom plate by using a phi 14 impact drill, installing an A10 water stop needle head, and filling acrylic acid salt or a permeable crystallization non-smashing brick waterproofing agent by using a double-liquid grouting machine to seal the leakage points. The invention creatively provides a full-system solution on the premise of no damage to the water supply and drainage pipes of a bathroom, achieves the aim of treating both principal and secondary aspect of the invention by means of multiple pipes in a uniform manner, can rapidly and thoroughly solve the problem of water leakage without smashing bricks and with low cost, avoids the generation of construction wastes, does not influence the normal life of residents, and simultaneously avoids the damage to the construction structure.
CN102627936a discloses a solid waterproof glue for automatically repairing toilet leakage and an automatic repairing construction method, the waterproof glue provided by the invention is formed by mixing aqueous polyurethane grouting resin and aqueous solution, wherein: 4.6-5.2Kg of water-based polyurethane grouting resin per cubic volume of a toilet water storage tank is prepared; the aqueous solution is prepared from the following raw materials in parts by weight: 950-1000 parts of water and 8.8-11.2 parts of alkaline thickener. The preparation method of the aqueous solution comprises the following steps: firstly pouring water into a container, then adding an alkaline thickener and stirring, and continuously injecting the prepared aqueous solution within 5 minutes for use. The automatic repair construction method comprises the following steps: 1) Firstly, disassembling a ceiling buckle plate of a toilet of a first building, drilling holes and discharging accumulated water in the toilet; 2) Firstly, injecting aqueous polyurethane grouting resin, and then continuously injecting aqueous solution; the two are mixed and foamed to form solid waterproof glue for repairing leakage; 3) And plugging the drilling hole to finish construction. The invention has short repairing time, small engineering quantity and quick effect, but the waterproof effect of the water-based polyurethane grouting resin is greatly reduced in a high-humidity or underwater environment, and the long-term waterproof state can not be maintained.
Disclosure of Invention
In view of the defects in the prior art, the invention provides a waterproof material and a construction method for repairing water leakage of a smashing-free brick, which effectively solve the problems of time and labor waste and repeated water leakage of a bathroom in the traditional bathroom plugging maintenance mode based on the smashing of the ceramic tile.
The invention provides a non-smashing brick waterproof agent which comprises the following raw material components in parts by weight:
60-70 parts of organic silicon emulsion, 1-2 parts of thickener and 1-2 parts of surfactant;
Or 60-70 parts of organosilicon emulsion, 1-7 parts of additive, 1-2 parts of thickener and 1-2 parts of surfactant.
Preferably, the thickener is selected from one or more of methylcellulose, hydroxyethyl cellulose, hydroxypropyl cellulose and carboxymethyl cellulose.
Preferably, the surfactant is one or more selected from fatty acid methyl ester sulfonate, sodium dodecyl benzene sulfonate and sodium dodecyl sulfate.
Preferably, the organosilicon emulsion is selected from one of PDMS-PU emulsion and PDMS-PU-Si emulsion.
Further preferably, the preparation method of the PDMS-PU emulsion comprises the following steps of, by weight:
Mixing 5-6 parts of hydroxyl-terminated polydimethylsiloxane, 6-7 parts of polytetrahydrofuran glycol, 2-3 parts of 2, 2-dimethylolpropionic acid, 0.02-0.05 part of cupric chloride and 20-25 parts of anhydrous acetone, and stirring for 20-30min at 60-62 ℃ and 250-300rpm under a dry nitrogen atmosphere to obtain a mixed solution A; dissolving 12-13 parts of 4,4' -diphenylmethane diisocyanate in 20-25 parts of anhydrous acetone, then adding the mixture into the mixed solution A, and continuously stirring for 2.5-3 hours at 60-62 ℃ and 250-300rpm to obtain a mixed solution B; then adding 10-12 parts of 1, 4-butanediol into the mixed solution B, and continuously stirring for 1.5-2 hours to obtain a mixed solution C; 2-2.5 parts of triethylamine is dissolved in 10-12 parts of anhydrous acetone, then the mixture is added into the mixed solution C, the temperature is reduced to 40-45 ℃, and stirring is continued for 0.5-1h, so as to obtain a mixed solution D; the stirring speed was increased to 500-600rpm, and 250-300 parts of distilled water was added to the mixed solution D to obtain PDMS-PU emulsion.
Further preferably, the preparation method of the PDMS-PU-Si emulsion comprises the following steps in parts by weight:
Mixing 5-6 parts of hydroxyl-terminated polydimethylsiloxane, 6-7 parts of polytetrahydrofuran glycol, 2-3 parts of 2, 2-dimethylolpropionic acid, 0.02-0.05 part of cupric chloride and 20-25 parts of anhydrous acetone, and stirring for 20-30min at 60-62 ℃ and 250-300rpm under a dry nitrogen atmosphere to obtain a mixed solution A; dissolving 12-13 parts of 4,4' -diphenylmethane diisocyanate in 20-25 parts of anhydrous acetone, then adding the mixture into the mixed solution A, and continuously stirring for 2.5-3 hours at 60-62 ℃ and 250-300rpm to obtain a mixed solution B; dispersing 9-10 parts of fumed silica R974 in 100-105 parts of N, N-dimethylacetamide, then adding the mixture into the mixed solution B, and continuously stirring for 1.5-2 hours to obtain a mixed solution C; 2-2.5 parts of triethylamine is dissolved in 10-12 parts of anhydrous acetone, then the mixture is added into the mixed solution C, the temperature is reduced to 40-45 ℃, and stirring is continued for 0.5-1h, so as to obtain a mixed solution D; the stirring speed was increased to 500-600rpm, and 250-300 parts of distilled water was added to the mixed solution D to obtain PDMS-PU-Si emulsion.
Preferably the additive is a hydrophobic fumed silica dispersion.
Further preferably, the preparation method of the hydrophobic fumed silica dispersion liquid comprises the following steps in parts by weight:
9-10 parts of fumed silica R974 is dispersed in 100-105 parts of 2-propanol, and then homogenized at 13000-14000rpm for 2-5min to obtain a hydrophobic fumed silica dispersion.
The invention also provides a preparation process of the non-smashing brick waterproof agent, which comprises the following steps:
and uniformly mixing the organosilicon emulsion, the thickener and the surfactant, and stirring for 5-10min under the condition of 1200-1500r/min to obtain the non-smashing brick waterproof agent.
Or mixing the organosilicon emulsion, the thickener and the surfactant, stirring for 5-10min under the condition of 1200-1500r/min, then adding the additive, and stirring for 15-20min under the condition of 1200-1500r/min to obtain the non-smashing brick waterproof agent.
In addition, the invention also provides an application of the smashing-free brick waterproof agent in water leakage repair of a toilet, which comprises the following steps:
S1, preparing construction, namely detecting whether leakage occurs in cold and hot water pipes, drainage pipelines and toilets of a toilet, and cleaning accumulated water of the toilet;
S2, after cleaning dirt on the marble surface in a wet area and/or the ceramic tile surface in a dry area of the bathroom, cutting and cleaning gaps of the marble and/or the ceramic tile, and drying the marble and the ceramic tile surfaces and the gaps by using a storm gun;
s3, pouring the non-smashing brick waterproof agent into marble and/or ceramic tile gaps, then using an ultrasonic wave introduction instrument to introduce the non-smashing brick waterproof agent into the marble and/or ceramic tile, and cleaning and drying the surfaces and gaps of the marble and/or ceramic tile;
S4, pouring a reinforcing agent into gaps of the marble and/or the ceramic tile, reinforcing the gaps, cleaning and drying the surfaces and the gaps of the marble and/or the ceramic tile;
S5, blocking, waterproofing and beautifying gaps of marble and/or ceramic tiles by using super-strong cement No.1, and cleaning and blow-drying the surfaces and gaps of the marble and/or ceramic tiles;
S6, respectively spraying nano crystals on the surfaces of the ceramic tiles, coating the marble Dan Biao with a disassembly-free crystal armor, airing for 6-8h, and putting the ceramic tiles into use after inspection.
The invention has the beneficial effects that:
1. Compared with the prior art, the invention uses the organosilicon emulsion, the hydrophobic fumed silica dispersion liquid, the carboxymethyl cellulose and the sodium dodecyl benzene sulfonate as raw materials to prepare the non-smashing brick waterproof agent, and the prepared waterproof agent has excellent waterproof performance by using the raw materials cooperatively and reasonably proportioning. According to the invention, the prepared waterproof agent is applied to the construction process of water leakage restoration of the bathroom, so that the smashing-free brick waterproof agent permeates into the ceramic tile through the ceramic tile gaps, and the waterproof agent is adhered to the surface of the concrete mortar to form a super-hydrophobic layer and permeates into the concrete gaps and micropores, thereby obviously reducing the permeation of water molecules and improving the waterproof performance of the bathroom. The invention abandons the traditional construction modes of disassembly, coating, smashing and injection, realizes the smash-free tile and low damage in the water leakage repairing construction process of the bathroom, has quick repairing result, saves trouble and money, and has positive influence on the environment and the construction period.
2. According to the invention, the organosilicon emulsion PDMS-PU-Si composed of the polymer precursors with lower molecular weight is used together with the hydrophobic fumed silica dispersion liquid to prepare the non-smashing brick waterproof agent, the PDMS-PU-Si and the concrete form non-covalent interaction through hydrogen bonds, and the-CH 3 group in the hydrophobic fumed silica structure can form strong hydrophobic-hydrophobic interaction with the PDMS part of the PDMS-PU-Si polymer, so that a firm hydrophobic layer is formed on the surface of the concrete rapidly, and the waterproof performance of a bathroom is improved. Meanwhile, the waterproofing agent enters from a liquid form, contacts with a large amount of free alkali and alkaline hydrate existing in the silicate cement concrete, almost instantaneously reacts, almost no solid liquid is converted into a very special 100% insoluble silicate gel, so that a seepage channel is blocked, the permeability resistance of the concrete is improved, microcracks of the concrete caused by expansion of pore water in the concrete due to freezing are reduced, and the freeze-thawing resistance of the concrete is improved. Therefore, PDMS-PU-Si organosilicon emulsion and hydrophobic gas phase silicon oxide dispersion liquid are cooperatively used to prepare the crashproof brick waterproof agent, and the crashproof brick waterproof agent is applied to water leakage restoration of a toilet, can obviously improve the waterproof performance of the wall surface of the toilet by reducing permeation and wetting of water molecules to concrete, can fill gaps and micropores in the concrete, improves the freeze thawing resistance of the concrete, further improves the durability of the wall surface, prolongs the waterproof period, and avoids repeated water leakage of the wall surface.
Detailed Description
Parameters of specific chemicals are used, sources.
Hydroxy-terminated polydimethylsiloxane: colorless transparent viscous liquid, purity: 99%, product family is Wuhan Kano scientific Co., ltd., product number: 0930;
Polytetrahydrofuran diol: purity: LR, manufacturer (alpha) zheng alpha chemical company, EINECS No.: 607-637-9, cat No.: 25190-06-1;
4,4' -diphenylmethane diisocyanate: white to pale yellow molten solid, purity: 99%, the production producer is Hubei Korea chemical industry Co., ltd., EINECS number: 202-966-0;
fumed silica R974: purity: 99%, the production producer is Hubei Yongkua technology Co., ltd., EINECS number: 343/3423.
Example 1
A preparation process of a non-smashing brick waterproof agent comprises the following steps:
60kg of organosilicon emulsion, 2kg of carboxymethyl cellulose and 2kg of sodium dodecyl benzene sulfonate are uniformly mixed, and stirred for 8min under the condition of 1500r/min, so that the non-smashing brick waterproof agent is obtained.
The organosilicon emulsion is PDMS-PU emulsion, and the preparation method comprises the following steps:
5.5g of hydroxy-terminated polydimethylsiloxane, 6g of polytetrahydrofuran glycol, 2.68g of 2, 2-dimethylolpropionic acid, 0.04g of cupric chloride and 20mL of anhydrous acetone are mixed, and stirred for 20min under the conditions of 60 ℃ and 250rpm under the atmosphere of dry nitrogen to obtain a mixed solution A; 12.51g of 4,4' -diphenylmethane diisocyanate was dissolved in 20mL of anhydrous acetone, and then added to the mixed solution A, and stirring was continued at 60℃and 300rpm for 3 hours to obtain a mixed solution B; then 10ml of 1, 4-butanediol is added into the mixed solution B, and stirring is continued for 2 hours to obtain a mixed solution C; 2g of triethylamine is dissolved in 10mL of anhydrous acetone, then added into the mixed solution C, the temperature is reduced to 45 ℃, and stirring is continued for 1h, so as to obtain a mixed solution D; the stirring speed was increased to 500rpm, and 250mL of distilled water was added to the mixed solution D to obtain PDMS-PU emulsion.
Example 2
A preparation process of a non-smashing brick waterproof agent comprises the following steps:
60kg of organosilicon emulsion, 2kg of carboxymethyl cellulose and 2kg of sodium dodecyl benzene sulfonate are uniformly mixed, and stirred for 8min under the condition of 1500r/min, so that the non-smashing brick waterproof agent is obtained.
The organosilicon emulsion is PDMS-PU-Si emulsion, and the preparation method comprises the following steps:
5.5g of hydroxy-terminated polydimethylsiloxane, 6g of polytetrahydrofuran glycol, 2.68g of 2, 2-dimethylolpropionic acid, 0.04g of cupric chloride and 20mL of anhydrous acetone are mixed, and stirred for 20min under the conditions of 60 ℃ and 250rpm under the atmosphere of dry nitrogen to obtain a mixed solution A; 12.51g of 4,4' -diphenylmethane diisocyanate was dissolved in 20mL of anhydrous acetone, and then added to the mixed solution A, and stirring was continued at 60℃and 300rpm for 3 hours to obtain a mixed solution B; 9.4g of fumed silica R974 is dispersed in 100g of N, N-dimethylacetamide, then added into the mixed solution B, and stirring is continued for 2 hours to obtain a mixed solution C; 2g of triethylamine is dissolved in 10mL of anhydrous acetone, then added into the mixed solution C, the temperature is reduced to 45 ℃, and stirring is continued for 1h, so as to obtain a mixed solution D; the stirring speed was increased to 500rpm, and 250mL of distilled water was added to the mixed solution D to obtain PDMS-PU-Si emulsion.
Example 3
A preparation process of a non-smashing brick waterproof agent comprises the following steps:
60kg of organosilicon emulsion, 2kg of carboxymethyl cellulose and 2kg of sodium dodecyl benzene sulfonate are mixed, stirred for 8min under the condition of 1500r/min, then 2kg of hydrophobic fumed silica dispersion liquid is added, and stirred for 20min under the condition of 1500r/min, so that the non-smashing brick waterproof agent is obtained.
The silicone emulsion was a PDMS-PU emulsion, the preparation method of which was the same as in example 1.
The preparation method of the hydrophobic fumed silica dispersion liquid comprises the following steps: 9.5g of fumed silica R974 was dispersed in 100g of 2-propanol, and then homogenized at 13000rpm for 5 minutes, to obtain a hydrophobic fumed silica dispersion.
Example 4
A preparation process of a non-smashing brick waterproof agent comprises the following steps:
60kg of organosilicon emulsion, 2kg of carboxymethyl cellulose and 2kg of sodium dodecyl benzene sulfonate are mixed, stirred for 8min under the condition of 1500r/min, then 2kg of hydrophobic fumed silica dispersion liquid is added, and stirred for 20min under the condition of 1500r/min, so that the non-smashing brick waterproof agent is obtained.
The silicone emulsion was a PDMS-PU-Si emulsion, the preparation method of which was the same as in example 2.
The preparation of the hydrophobic fumed silica dispersion was in accordance with example 3.
Example 5
A process for preparing a non-crashing tile waterproofing agent is different from example 4 in that 2kg of the hydrophobic fumed silica dispersion is replaced with 10kg of the hydrophobic fumed silica dispersion.
Example 6
A process for preparing a non-crashing tile waterproofing agent is different from example 4 in that 2kg of the hydrophobic fumed silica dispersion is replaced with 5kg of the hydrophobic fumed silica dispersion.
Application example
Toilet water leakage repairing construction
And (3) preparation of construction: firstly, detecting whether leakage exists among a cold water pipe, a hot water pipe, each drainage pipeline and a closestool of a toilet by using a pipeline leakage detector; secondly, cleaning water accumulated in the water-leaking toilet, selecting a floor drain door to open a ceramic tile around, opening the ceramic tile by an electric pick until the bottom of the caisson of the toilet is seen, sucking the water accumulated in the caisson by a dust collector, and selecting a lowest pipeline opening at the bottom of the caisson for secondary drainage to solve the water accumulated in the caisson of the toilet;
cutting and cleaning: after cleaning dirt on the marble surface in a wet area and/or the ceramic tile surface in a dry area of the bathroom, cutting marble and/or ceramic tile gaps by using a cutting machine, polishing, cleaning and cleaning the gaps, and drying the marble, the ceramic tile surfaces and the gaps by using a storm gun;
Leakage blocking: pouring the anti-cracking tile waterproof agent prepared in the embodiment into marble and/or tile gaps, then using an ultrasonic wave introduction instrument to introduce the anti-cracking tile waterproof agent into the marble and/or the tile, cleaning the redundant waterproof agent, and drying the marble and/or the tile surfaces and gaps;
And (3) reinforcing: pouring the reinforcing agent into gaps of marble and/or ceramic tiles, reinforcing the gaps, cleaning the redundant reinforcing agent, and blow-drying the surfaces and the gaps of the marble and/or ceramic tiles;
And (3) beautifying the joint: blocking, waterproofing and beautifying gaps of marble and/or ceramic tiles by using super-strong cement No. 1, cleaning and blow-drying the surfaces and gaps of the marble and/or ceramic tiles;
and (5) acceptance checking: the surface of the ceramic tile is respectively sprayed with nano crystals, the marble Dan Biao is coated with the disassembly-free crystal armor, and the ceramic tile is dried for 7 hours, and can be put into use in a bathroom after inspection and acceptance.
Test example 1
Waterproof performance test of smashing-free brick waterproof agent
Permeation resistance test
Manufacturing and curing a concrete test piece: the formed cement concrete test piece is specified in reference to GB/T50081-2019 concrete physical and mechanical property test method Standard: a150 mm by 150mm cube test piece was used, with 6 test pieces being a set. And (3) placing the formed concrete test piece into a room with the temperature (20+/-5) ℃ and the relative humidity of more than 50 percent according to the specification, standing for 1d, demolding, immediately placing into a standard curing room with the temperature (20+/-5) ℃ and the relative humidity of more than 50 percent for curing after demolding, brushing hair on the bottom surface of the test piece, removing greasy dirt and floating paste by using a steel wire brush, cleaning, removing floating water, and then placing into the curing room again for continuous curing for 28d.
And (3) coating a waterproof agent: and (3) taking out the test piece from the curing room until the curing age of the concrete, brushing and cleaning the test piece by using a steel wire brush, and putting the test piece into an air conditioning room with the temperature of 20 ℃ and the relative humidity of 55% -65%. Experiment groups of examples 1-6, wherein each group is provided with three test pieces, the bottom surface is upward, after the surface is dried, a brush is used for dipping the waterproof agents prepared in examples 1-6 until the bottom surface reaches a saturated state, and the test pieces are dried; three test pieces were taken as a blank without applying a water repellent.
And carrying out a permeation resistance test by referring to a step-by-step pressurizing method 6.2 in a permeation resistance test 6 in a test method standard of long-term performance and durability of common concrete of GB/T50082-2009.
Water absorption test
The steps of manufacturing and curing the concrete test piece and brushing the waterproof agent are consistent with the steps of the anti-permeation test.
There are many methods for measuring the water absorption of concrete, and most of them adopt a full-immersion method. The test methods listed in the American ASTM standard (C1585-04) for measuring the water absorption rate of hydraulic cement concrete and the method for measuring the water absorption rate in annex E concrete silane dipping construction process and test method of JTJ 275-2000 corrosion protection technical Specification for seaport engineering concrete structure are all methods for dipping a surface. Considering the actual application condition of the non-smashing brick waterproof agent prepared by the invention, the method of soaking one surface is more reasonable, so the test is carried out by referring to two methods (mainly based on ASTM standards) and the actual condition, and the purpose of comparing the difference between a painted test piece and an un-painted test piece is achieved. The method comprises the following steps:
(1) Cutting (retaining the original top surface) the test piece drill core into a cylindrical test piece with the diameter of 100mm and the height of 50mm before the test;
(2) All the test pieces were baked at 40℃for 48h and the test pieces were cooled in an oven. Then placing the mixture in an air conditioning room with the relative humidity of 55-65% for weighing.
(3) A plurality of glass rods or reinforcing steel bars with the diameter of 100mm are placed at the bottom of a proper container, and water which is placed in an air conditioning room for a long time is injected, so that the water surface is 1-2 mm above the glass rods.
(4) The original surface of the test piece is placed on a glass rod or a steel bar downwards, immersed for 48 hours, wiped by a rolled wet rag and then weighed.
The test results were averaged and are specified in table 1 below.
Table 1 waterproof test conditions
As can be seen from the data in Table 1, the permeation resistance of examples 1 to 6 was superior to that of the blank, and the water absorption was significantly lower than that of the blank, indicating that the waterproofing agent prepared by the present invention has excellent waterproofing performance. Comparative examples 1-6, examples 4-6 were found to have significantly better permeation resistance than examples 1-3, and water absorption was also significantly lower than examples 1-3, with example 6 having the best water resistance. The analysis reason is probably because when the waterproofing agent permeates to the surface of the concrete, the organosilicon emulsion PDMS-PU-Si composed of polymer precursors with lower molecular weight can form a uniform casting film on the surface of the concrete, a hydrophobic film with compact structure can be quickly generated, surface cracks and pores are closed, meanwhile, the waterproofing agent enters from liquid and contacts with a large amount of free alkali and alkaline hydrate existing in the silicate cement concrete, almost instantaneously, chemical reaction occurs, and almost no solid liquid is converted into a very special 100% insoluble silicate gel, so that a water seepage channel is blocked, and the waterproof performance of the concrete is further improved. The polyTHF end of the PDMS-PU-Si polymer with the hydrophobic function in the waterproof agent can form non-covalent interaction with concrete through oxygen bond, while the-CH 3 group in the hydrophobic fumed silica structure can form strong hydrophobic-hydrophobic interaction with the PDMS part of the PDMS-PU-Si polymer, so that the waterproof agent can be firmly adhered on the surface of the concrete. In addition, the hydrophobic fumed silica contained in the waterproofing agent is uniformly dispersed on the surface of the concrete along with the dispersion of the organosilicon emulsion, and the surface roughness of the concrete is increased along with the increase of the content of the hydrophobic fumed silica, which corresponds to the fact that water drops are supported by the concrete, so that the contact angle of the water drops on the surface of the concrete is larger, the infiltration capacity of water is reduced, and the waterproofness is improved.
Test example 2
Freeze thawing resistance test
Test preparation and curing were performed with reference to GB/T50082-2009 Standard for test methods for Long-term Properties and durability of ordinary concrete, the waterproofing agents prepared in examples 1-6 were coated on the surfaces of samples having dimensions of 100 mm. Times.100 mm. Times.400 mm, the samples not coated with the waterproofing agent were blank sets, and each set of samples was sealed with a preservative film and left in a room at 20.+ -. 2 ℃ for 7 days. Performing freeze thawing resistance test by referring to the "4.2 quick freezing method" in the standard of the test method Standard for long-term performance and durability of common concrete of GB/T50082-2009 ", soaking each group of samples in deionized water for 24 hours, and recording the mass of each group of samples as m0; put into a freeze thawing box, the mass of the freeze thawing liquid is measured after every 50 freeze thawing cycles and is respectively recorded as m50, m100 and m150, and the freeze thawing mass loss rate eta is calculated by the following formula:
η＝(m0-mn)/m0×100％
The test results were averaged and are shown in Table 2.
Table 2 freeze thawing test conditions for each group
As can be seen from the data in table 2, after repeated freeze thawing cycles, the mass of each group of samples is lost, because the pore water in the concrete expands due to freezing, thereby causing micro cracks of the concrete, and as the temperature increases, the ice in the concrete pores melts, so that the micro cracks in the concrete open and close, and gradually increase and expand, thereby damaging the concrete, and the mass loss of the concrete occurs. As can be seen from the comparison of the blank and the examples 1-6, the mass loss rate of the examples 1-6 is obviously lower than that of the blank, which shows that the waterproof agent prepared by the invention has excellent freeze-thawing resistance. Comparative examples 1-6, examples 4-6 were found to have significantly lower mass loss rates than examples 1-3, with example 6 having the lowest mass loss rate. The analytical reasons may be that the waterproofing agent enters in liquid form and comes into contact with a large amount of free base, alkaline hydrate present in the portland cement concrete, and almost instantaneously undergoes chemical reaction, converting from almost no solid liquid to a very specific 100% insoluble silicate gel. This very specific endogenous gel can close and reduce capillary pores and capillary channels, forcing a portion of the capillary pores and capillary channels to transition towards gel pores and constricting pores. The presence of water therein is thus changed and the water will not freeze or expand in volume in its natural state. At the same time, a part of capillary channels are reduced, so that the infiltration and migration of water are obviously reduced, the necessary conditions for generating freezing and thawing damage are lost, and the freezing resistance of the concrete is greatly improved after the waterproofing agent is infiltrated. In addition, the PDMS-PU-Si polymer in the waterproof agent forms a hydrogen bond with the concrete through the polyTHF end, so that non-covalent interaction is realized. Meanwhile, the-CH 3 group in the hydrophobic fumed silica structure forms a strong hydrophobic-hydrophobic interaction with the PDMS portion of the PDMS-PU-Si polymer. The interaction enables the waterproof agent to be firmly adhered to the surface of the concrete, enhances the binding force between the waterproof layer and a concrete base material, improves the durability of the waterproof effect, and is also helpful for preventing the peeling and cracking of the concrete caused by the freezing and expansion of water in the freezing and thawing cycle process, and further improves the freeze thawing resistance of the concrete.
Claims (10)
1. The smashing-free brick waterproof agent is characterized by comprising the following raw material components in parts by weight:
60-70 parts of organic silicon emulsion, 1-2 parts of thickener and 1-2 parts of surfactant;
Or 60-70 parts of organosilicon emulsion, 1-7 parts of additive, 1-2 parts of thickener and 1-2 parts of surfactant.
2. The non-impact brick waterproofing agent according to claim 1, wherein: the thickener is one or more selected from methyl cellulose, hydroxyethyl cellulose, hydroxypropyl cellulose and carboxymethyl cellulose.
3. The non-impact brick waterproofing agent according to claim 1, wherein: the surfactant is one or more selected from fatty acid methyl ester sulfonate, sodium dodecyl benzene sulfonate and sodium dodecyl sulfate.
4. The non-impact brick waterproofing agent according to claim 1, wherein: the organosilicon emulsion is selected from one of PDMS-PU emulsion and PDMS-PU-Si emulsion.
5. The non-impact brick repellent according to claim 4, wherein: the preparation method of the PDMS-PU emulsion comprises the following steps of:
Mixing 5-6 parts of hydroxyl-terminated polydimethylsiloxane, 6-7 parts of polytetrahydrofuran glycol, 2-3 parts of 2, 2-dimethylolpropionic acid, 0.02-0.05 part of cupric chloride and 20-25 parts of anhydrous acetone, and stirring for 20-30min at 60-62 ℃ and 250-300rpm under a dry nitrogen atmosphere to obtain a mixed solution A; 12-13 parts of 4,4' -diphenylmethane diisocyanate are bathed in 20-25 parts of anhydrous acetone, then added into the mixed solution A, and continuously stirred for 2.5-3 hours under the conditions of 60-62 ℃ and 250-300rpm to obtain a mixed solution B; then adding 10-12 parts of 1, 4-butanediol into the mixed solution B, and continuously stirring for 1.5-2 hours to obtain a mixed solution C; 2-2.5 parts of triethylamine is dissolved in 10-12 parts of anhydrous acetone, then the mixture is added into the mixed solution C, the temperature is reduced to 40-45 ℃, and stirring is continued for 0.5-1h, so as to obtain a mixed solution D; the stirring speed was increased to 500-600rpm, and 250-300 parts of distilled water was added to the mixed solution D to obtain PDMS-PU emulsion.
6. The non-impact brick repellent according to claim 4, wherein: the preparation method of the PDMS-PU-Si emulsion comprises the following steps of:
mixing 5-6 parts of hydroxyl-terminated polydimethylsiloxane, 6-7 parts of polytetrahydrofuran glycol, 2-3 parts of 2, 2-dimethylolpropionic acid, 0.02-0.05 part of cupric chloride and 20-25 parts of anhydrous acetone, and stirring for 20-30min at 60-62 ℃ and 250-300rpm under a dry nitrogen atmosphere to obtain a mixed solution A; dissolving 12-13 parts of 4,4' -diphenylmethane diisocyanate in 20-25 parts of anhydrous acetone, then adding the mixture into the mixed solution A, and continuously stirring for 2.5-3 hours at 60-62 ℃ and 250-300rpm to obtain a mixed solution B; dispersing 9-10 parts of fumed silica R974 in 100-105 parts of N, N-dimethylacetamide, then adding the mixture into the mixed solution B, and continuously stirring for 1.5-2 hours to obtain a mixed solution C; 2-2.5 parts of triethylamine is dissolved in 10-12 parts of anhydrous acetone, then the mixture is added into the mixed solution C, the temperature is reduced to 40-45 ℃, and stirring is continued for 0.5-1h, so as to obtain a mixed solution D; the stirring speed was increased to 500-600rpm, and 250-300 parts of distilled water was added to the mixed solution D to obtain PDMS-PU-Si emulsion.
7. The non-impact brick waterproofing agent according to claim 1, wherein: the additive is a hydrophobic fumed silica dispersion.
8. The non-impact brick waterproofing agent according to claim 7, wherein the preparation method of the hydrophobic fumed silica dispersion liquid comprises the following steps in parts by weight:
9 to 10 parts of fumed silica R974 is dispersed in 100 to 105 parts of 2-propanol, and then homogenized at 13000 to 14000rpm for 2 to 5 minutes, to obtain a hydrophobic fumed silica dispersion.
9. The process for preparing a non-impact tile water repellent according to any one of claims 1 to 8, comprising the steps of:
uniformly mixing the organosilicon emulsion, the thickener and the surfactant, and stirring for 5-10min under the condition of 1200-1500r/min to obtain the non-smashing brick waterproof agent;
Or mixing the organosilicon emulsion, the thickener and the surfactant, stirring for 5-10min under the condition of 1200-1500r/min, then adding the additive, and stirring for 15-20min under the condition of 1200-1500r/min to obtain the non-smashing brick waterproof agent.
10. The use of a tile-breaking-free waterproofing agent according to claims 1 to 8 for repair of water leaks in toilets, comprising the steps of:
S1, preparing construction, namely detecting whether leakage occurs in cold and hot water pipes, drainage pipelines and toilets of a toilet, and cleaning accumulated water of the toilet;
S2, after cleaning dirt on the marble surface in a wet area and/or the ceramic tile surface in a dry area of the bathroom, cutting and cleaning gaps of the marble and/or the ceramic tile, and drying the marble and the ceramic tile surfaces and the gaps by using a storm gun;
s3, pouring the non-smashing brick waterproof agent into marble and/or ceramic tile gaps, then using an ultrasonic wave introduction instrument to introduce the non-smashing brick waterproof agent into the marble and/or ceramic tile, and cleaning and drying the surfaces and gaps of the marble and/or ceramic tile;
S4, pouring a reinforcing agent into gaps of the marble and/or the ceramic tile, reinforcing the gaps, cleaning and drying the surfaces and the gaps of the marble and/or the ceramic tile;
S5, blocking, waterproofing and beautifying gaps of marble and/or ceramic tiles by using super-strong cement No.1, and cleaning and blow-drying the surfaces and gaps of the marble and/or ceramic tiles;
S6, respectively spraying nano crystals on the surfaces of the ceramic tiles, coating the marble Dan Biao with a disassembly-free crystal armor, airing for 6-8h, and putting the ceramic tiles into use after inspection.
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| CN103864340A (en) * | 2014-03-24 | 2014-06-18 | 成都理工大学 | Water-repellent admixture for mortar and concrete |
| CN104263230A (en) * | 2014-09-18 | 2015-01-07 | 江苏海晟涂料有限公司 | Water-based plastic coating and preparation method thereof |
| CN104745071A (en) * | 2015-03-30 | 2015-07-01 | 广西吉宽太阳能设备有限公司 | Polyurethane waterproof flame-retardant paint and preparation method thereof |
| CN112459527A (en) * | 2020-12-03 | 2021-03-09 | 安徽墨砂工程修缮技术有限公司 | Brick-smashing-free toilet leakage repairing method |
| KR102356751B1 (en) * | 2021-07-22 | 2022-02-08 | 이민주 | Waterproof system of trench |
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