CN107189670A - Finishing varnish and preparation method thereof - Google Patents
Finishing varnish and preparation method thereof Download PDFInfo
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- CN107189670A CN107189670A CN201710443820.1A CN201710443820A CN107189670A CN 107189670 A CN107189670 A CN 107189670A CN 201710443820 A CN201710443820 A CN 201710443820A CN 107189670 A CN107189670 A CN 107189670A
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- mass parts
- finishing varnish
- emulsion
- delustring
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- 239000002966 varnish Substances 0.000 title claims abstract description 70
- 238000002360 preparation method Methods 0.000 title abstract description 7
- 239000000839 emulsion Substances 0.000 claims abstract description 59
- 239000000203 mixture Substances 0.000 claims abstract description 40
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims abstract description 32
- 229920001296 polysiloxane Polymers 0.000 claims abstract description 31
- 239000002562 thickening agent Substances 0.000 claims abstract description 18
- 239000003002 pH adjusting agent Substances 0.000 claims abstract description 14
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 10
- 239000003755 preservative agent Substances 0.000 claims abstract description 9
- 239000003643 water by type Substances 0.000 claims abstract description 7
- 238000003756 stirring Methods 0.000 claims description 41
- 238000000034 method Methods 0.000 claims description 15
- 238000002156 mixing Methods 0.000 claims description 14
- 239000013530 defoamer Substances 0.000 claims description 13
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 11
- 229910052710 silicon Inorganic materials 0.000 claims description 11
- 239000010703 silicon Substances 0.000 claims description 11
- CBTVGIZVANVGBH-UHFFFAOYSA-N aminomethyl propanol Chemical group CC(C)(N)CO CBTVGIZVANVGBH-UHFFFAOYSA-N 0.000 claims description 7
- 229940058020 2-amino-2-methyl-1-propanol Drugs 0.000 claims description 6
- 239000011258 core-shell material Substances 0.000 claims description 4
- 239000008367 deionised water Substances 0.000 claims description 4
- 229910021641 deionized water Inorganic materials 0.000 claims description 4
- 229920002635 polyurethane Polymers 0.000 claims description 4
- 239000004814 polyurethane Substances 0.000 claims description 4
- 230000002335 preservative effect Effects 0.000 claims description 4
- 239000004816 latex Substances 0.000 abstract description 7
- 229920000126 latex Polymers 0.000 abstract description 7
- 238000003860 storage Methods 0.000 description 18
- 239000003973 paint Substances 0.000 description 13
- 230000000694 effects Effects 0.000 description 12
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 9
- 239000002994 raw material Substances 0.000 description 8
- 238000000576 coating method Methods 0.000 description 7
- 239000000853 adhesive Substances 0.000 description 6
- 230000001070 adhesive effect Effects 0.000 description 6
- 239000011248 coating agent Substances 0.000 description 6
- 239000000126 substance Substances 0.000 description 6
- 238000004140 cleaning Methods 0.000 description 5
- 239000004922 lacquer Substances 0.000 description 5
- 239000000178 monomer Substances 0.000 description 5
- 230000008859 change Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 238000006116 polymerization reaction Methods 0.000 description 4
- 239000000843 powder Substances 0.000 description 4
- 239000003795 chemical substances by application Substances 0.000 description 3
- 238000010276 construction Methods 0.000 description 3
- 238000004132 cross linking Methods 0.000 description 3
- 238000005034 decoration Methods 0.000 description 3
- -1 disappeared Infusion Substances 0.000 description 3
- 239000006185 dispersion Substances 0.000 description 3
- 238000001802 infusion Methods 0.000 description 3
- 238000010422 painting Methods 0.000 description 3
- 239000000377 silicon dioxide Substances 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 230000008033 biological extinction Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000003670 easy-to-clean Effects 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000035699 permeability Effects 0.000 description 2
- 239000000049 pigment Substances 0.000 description 2
- BDERNNFJNOPAEC-UHFFFAOYSA-N propan-1-ol Chemical compound CCCO BDERNNFJNOPAEC-UHFFFAOYSA-N 0.000 description 2
- 230000009967 tasteless effect Effects 0.000 description 2
- 230000008719 thickening Effects 0.000 description 2
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 description 1
- GOJUJUVQIVIZAV-UHFFFAOYSA-N 2-amino-4,6-dichloropyrimidine-5-carbaldehyde Chemical group NC1=NC(Cl)=C(C=O)C(Cl)=N1 GOJUJUVQIVIZAV-UHFFFAOYSA-N 0.000 description 1
- 208000000187 Abnormal Reflex Diseases 0.000 description 1
- 206010021089 Hyporeflexia Diseases 0.000 description 1
- VVQNEPGJFQJSBK-UHFFFAOYSA-N Methyl methacrylate Chemical compound COC(=O)C(C)=C VVQNEPGJFQJSBK-UHFFFAOYSA-N 0.000 description 1
- 241000282320 Panthera leo Species 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 238000000149 argon plasma sintering Methods 0.000 description 1
- 238000000889 atomisation Methods 0.000 description 1
- 239000012752 auxiliary agent Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 210000000481 breast Anatomy 0.000 description 1
- CQEYYJKEWSMYFG-UHFFFAOYSA-N butyl acrylate Chemical compound CCCCOC(=O)C=C CQEYYJKEWSMYFG-UHFFFAOYSA-N 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 239000003431 cross linking reagent Substances 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 125000005647 linker group Chemical group 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000029219 regulation of pH Effects 0.000 description 1
- 238000007665 sagging Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
- 231100000419 toxicity Toxicity 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D175/00—Coating compositions based on polyureas or polyurethanes; Coating compositions based on derivatives of such polymers
- C09D175/04—Polyurethanes
- C09D175/14—Polyurethanes having carbon-to-carbon unsaturated bonds
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/16—Antifouling paints; Underwater paints
- C09D5/1656—Antifouling paints; Underwater paints characterised by the film-forming substance
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/16—Antifouling paints; Underwater paints
- C09D5/1687—Use of special additives
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/10—Transparent films; Clear coatings; Transparent materials
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Paints Or Removers (AREA)
Abstract
The invention discloses finishing varnish and preparation method thereof.Wherein, the finishing varnish includes：The silicone acrylic emulsion of 10 20 mass parts；The delustring emulsion of 40 50 mass parts；The coalescents of 35 mass parts；0.3 0.5 mass parts defoamers；0.2 0.3 mass parts pH adjusting agents；1.2 1.8 mass parts thickeners；0.2 0.6 mass parts preservatives；And 10 20 mass parts deionized waters.By by silicone acrylic emulsion and delustring latex blend, significantly improving the transparency, water resistance, weatherability of finishing varnish.
Description
Technical field
The present invention relates to chemical field.In particular it relates to finishing varnish and preparation method thereof.
Background technology
In recent years, the attention with people to wall decoration effect, had both required the feature of wall covering, and had also required that metope
With good attractive in appearance and decorative effect.Finishing varnish can increase the protection of paint coatings external application, improve durability, stain resistant,
The performance requirements such as temperature-change resistance energy, can also increase the protection applied to interior coating and U.S. decorations effect.It is currently used in inner-outer wall cover
Lac varnish is main based on light, and effect-Gloss is high after construction, dazzling, applied to the dust being highly susceptible to after exterior wall in air,
The pollution of the pollutants such as impurity, loses decorative effect, it is easier to gloss non-uniform phenomenon when causing large-area construction；Applied to interior
Wall application then too bloom, it is dazzling, have eyes especially children's eyes of people compared with major injury.And dumb light finishing varnish is then
Problem above is solved very well, can be played a protective role during applied to built-in decoration, at the same it is gloss dumb light, not dazzling, beneficial to room
Interior trim effect shows, therefore is more and more liked by consumer.
Conventional method prepared by current dumb light finishing varnish is to add flatting silica or diatomite etc. to have the powder of photoextinction
Carry out delustring.Flatting silica or diatomite etc. have the powder application of photoextinction in being dispersed in after emulsion system in paint film,
In one layer of rough rough surface of surface formation, the scattering of increase light, reaching reduces the effect of gloss of film, but the party
Method easily causes the poor storage stability of product, is easily layered, and appearance is bad, while can also produce transparent poor, application
The problems such as water-whitening resistance is poor when exterior wall.
Thus, existing finishing varnish has much room for improvement.
The content of the invention
It is contemplated that at least solving one of technical problem present in prior art.Therefore, one object of the present invention
It is to propose a kind of finishing varnish, the adhesive force of the finishing varnish is strong, film transparency and flatness are good, and dirt-resistant self-cleaning performance is protruded,
It is readily cleaned and can be firmly attached on new and old metope.
It should be noted that the present invention is the following work based on inventor and completed：
Current dumb light finishing varnish, the powder that typically adding flatting silica or diatomite etc. has photoextinction carries out delustring,
The dispersion effect of powder is poor, be easy to precipitation, the poor flatness of paint film.In view of this, inventor has found by many experiments, selects
Silicone acrylic emulsion and delustring latex blend, are reaching complete mute paint film simultaneously, are possessing the more preferable transparency, and water-fast, weatherability
Can, product possesses better storage stability.
Thus, according to an aspect of the present invention, the invention provides a kind of finishing varnish.Embodiments in accordance with the present invention,
The finishing varnish includes：The silicone acrylic emulsion of 10-20 mass parts；The delustring emulsion of 40-50 mass parts；The coalescents of 3-5 mass parts；
0.3-0.5 mass parts defoamers；0.2-0.3 mass parts pH adjusting agents；1.2-1.8 mass parts thickeners；0.2-0.6 mass parts are prevented
Rotten agent；And 10-20 mass parts deionized waters.
Inventor has surprisingly found that, by by silicone acrylic emulsion and delustring latex blend, making the transparent, water-fast of finishing varnish
Property, weatherability are significantly improved.So that complete mute paint film is being reached simultaneously with the finishing varnish of above-mentioned proportional arrangement, with adhesive force
By force, film transparency and flatness are good, and dirt-resistant self-cleaning performance is protruded, and water-fast and weather resistance is good, and storage stability is good, and is easy to
Clean and can firmly be attached on new and old metope and possess the more preferable transparency.In addition, cover according to the above embodiment of the present invention
Lac varnish can also have technical characteristic additional as follows：
Embodiments in accordance with the present invention, the silicone acrylic emulsion is 13-17 mass parts, it is preferable that be 15 mass parts.
Embodiments in accordance with the present invention, the delustring emulsion is 43-47 mass parts, it is preferable that be 45 mass parts.
Embodiments in accordance with the present invention, the silicone acrylic emulsion has core shell structure.Embodiments in accordance with the present invention, the silicon
The silicon content of acrylic emulsion is 4-6%.
Embodiments in accordance with the present invention, the delustring emulsion is water-borne polyurethane-acrylate class delustring emulsion.
6th, finishing varnish according to claim 1, it is characterised in that the coalescents contain dibenzoate.
Embodiments in accordance with the present invention, the pH adjusting agent is 2-amino-2-methyl-1-propanol.
Embodiments in accordance with the present invention, the defoamer is organic silicon defoamer.
Embodiments in accordance with the present invention, the thickener is non-ionic polyurethane association thickener.
Embodiments in accordance with the present invention, the viscosity of the finishing varnish is 60-70KU.
According to another aspect of the present invention, the invention provides a kind of method for preparing finishing varnish.According to the reality of the present invention
Example is applied, this method includes：Under the first stirring condition, added into silicone acrylic emulsion after delustring emulsion and add pH adjusting agent, disappeared
Infusion, preservative and deionized water simultaneously stir mixing, to obtain the first mixture；Under the second stirring condition, to described
Coalescents are added in one mixture, to obtain the second mixture；And under the 3rd stirring condition, to the described second mixing
Thickener is added in thing, to obtain the finishing varnish.
The method for preparing finishing varnish according to embodiments of the present invention, by by silicone acrylic emulsion and delustring latex blend, making cover
The transparency, water resistance, the weatherability of lac varnish are significantly improved.So as to reach that complete mute paint film is same with the finishing varnish of above-mentioned preparation
When, with adhesive force is strong, film transparency and flatness are good, dirt-resistant self-cleaning performance is protruded, and water-fast and weather resistance is good, and storage is steady
It is qualitative good, and be readily cleaned and can firmly be attached on new and old metope and possess the more preferable transparency.
Embodiments in accordance with the present invention, the mixing speed of first stirring condition is 300--500r/min.
Embodiments in accordance with the present invention, the mixing speed of second stirring condition is 500-800r/min.
Embodiments in accordance with the present invention, the mixing speed of the 3rd stirring condition is 700-1200r/min.
The additional aspect and advantage of the present invention will be set forth in part in the description, and will partly become from the following description
Obtain substantially, or recognized by the practice of the present invention.
Brief description of the drawings
The above-mentioned and/or additional aspect and advantage of the present invention will become from description of the accompanying drawings below to embodiment is combined
Substantially and be readily appreciated that, wherein：
Fig. 1 shows the transparent result schematic diagram of embodiment 1-3 according to an embodiment of the invention paint film；
Fig. 2 shows the transparent result schematic diagram of the paint film of competing product according to an embodiment of the invention.
Embodiment
Embodiments of the invention are described below in detail, the example of the embodiment is shown in the drawings, wherein from beginning to end
Same or similar label represents same or similar element or the element with same or like function.Below with reference to attached
The embodiment of figure description is exemplary, is only used for explaining the present invention, and is not considered as limiting the invention.
In the description of the invention, term " longitudinal direction ", " transverse direction ", " on ", " under ", "front", "rear", "left", "right", " perpendicular
Directly ", the orientation or position relationship of the instruction such as " level ", " top ", " bottom " are, based on orientation shown in the drawings or position relationship, to be only
For the ease of the description present invention rather than require that the present invention must be therefore it is not intended that right with specific azimuth configuration and operation
The limitation of the present invention.
It should be noted that term " first ", " second " are only used for describing purpose, and it is not intended that indicating or implying phase
To importance or the implicit quantity for indicating indicated technical characteristic.Thus, define " first ", the feature of " second " can be with
Express or implicitly include one or more this feature.Further, in the description of the invention, unless otherwise saying
Bright, " multiple " are meant that two or more.
According to an aspect of the present invention, the invention provides a kind of finishing varnish.Embodiments in accordance with the present invention, the Lacquer finish
Enamel-cover is included：The silicone acrylic emulsion of 10-20 mass parts；The delustring emulsion of 40-50 mass parts；The coalescents of 3-5 mass parts；0.3-
0.5 mass parts defoamer；0.2-0.3 mass parts pH adjusting agents；1.2-1.8 mass parts thickeners；0.2-0.6 mass parts anti-corrosions
Agent；And 10-20 mass parts deionized waters.
Inventor has surprisingly found that, by by silicone acrylic emulsion and delustring latex blend, making the transparent, water-fast of finishing varnish
Property, weatherability are significantly improved.So that complete mute paint film is being reached simultaneously with the finishing varnish of above-mentioned proportional arrangement, with adhesive force
By force, film transparency and flatness are good, and dirt-resistant self-cleaning performance is protruded, and water-fast and weather resistance is good, and storage stability is good, and is easy to
Clean and can firmly be attached on new and old metope and possess the more preferable transparency.
Embodiments in accordance with the present invention, silicone acrylic emulsion is 13-17 mass parts.Thus, the stability of finishing varnish is good, energy of attachment
Power is strong, water-fast and weather resistance is good, and storage stability is good, is easy to long term storage.According to a preferred embodiment of the invention, the breast of silicon third
Liquid is 15 mass parts.Thus, more preferably, adhesive ability, water-fast and weather resistance are significantly improved the stability of finishing varnish, stable storing
More preferably, storage time is longer for property.
Embodiments in accordance with the present invention, delustring emulsion is 43-47 mass parts.Thus, the matte effect and lacquer painting of finishing varnish
Permeability it is good, and with certain thickening effect.According to a preferred embodiment of the invention, delustring emulsion is 45 mass parts.
Thus, more preferably, and thickening effect is good for the permeability of the matte effect of finishing varnish and lacquer painting.
Embodiments in accordance with the present invention, silicone acrylic emulsion has core shell structure.Embodiments in accordance with the present invention, with nucleocapsid knot
The emulsion of structure is several functional monomers by synthesis such as certain polymerization techniques, for example, the emulsion of core shell structure can be with
By the raw material such as butyl acrylate, methyl methacrylate and acrylic acid, vinylsiloxane monomer, crosslinking agent.Specifically, root
According to embodiments of the invention, the preparation method of the silicone acrylic emulsion is：By organic silicon monomer and acrylic compounds containing unsaturated bond
Monomer adds suitable auxiliary agent, is coated by nucleocapsid formed by polymerization technique polymerization.According to a particular embodiment of the invention, should
Silicone acrylic emulsion can be the rich RS-996AD of Ahmedabad.
Embodiments in accordance with the present invention, the silicon content of silicone acrylic emulsion is 4-6%.When silicone content is more than 6%, the machine of emulsion
Tool stability declines, and because 2 kinds of structural compatibilities are poor relevant in silicone-acrylate copolymer, causes organic silicon monomer excessively to be analysed
Go out；And silicone content be less than 4% when, contact angle is small, it is not easy to polymerize.And when silicon content is 4-6%, the phase of silicone acrylic emulsion
Capacitive is good, and contact angle is big, and is difficult polymerization.
Embodiments in accordance with the present invention, delustring emulsion is water-borne polyurethane-acrylate class delustring emulsion.Inventor's experiment hair
Existing, water-borne polyurethane-acrylate class delustring emulsion exists obvious during film crosslinking film forming between different groups
Crosslinking gradient, self-cross linking groups form successively gradient crosslinked contraction during coating film forming, produce film coated surface trickle
Roughness, causes light scattering to strengthen, hyporeflexia and reach delustring purpose, the change of water-borne polyurethane-acrylate class delustring emulsion
Extinction method is learned to have a clear superiority in terms of the film transparency and storage stability compared with conventional physical extinction method.According to this hair
Bright preferred embodiment, water-borne polyurethane-acrylate class delustring emulsion can be the PUA-2011M of hat will chemical industry.Thus, film
The transparency and storage stability are more preferably.
Embodiments in accordance with the present invention, coalescents contain dibenzoate.It is Celsius that dibenzoate higher boiling is up to 330
Degree, and it is nonpoisonous and tasteless, filming performance is good.According to a particular embodiment of the invention, coalescents can be the K- in the U.S.
FLEX850S.Thus, it is nonpoisonous and tasteless, small toxicity, filming performance is more preferably.
Embodiments in accordance with the present invention, pH adjusting agent is 2-amino-2-methyl-1-propanol.Thus, 2- amino-2-methyls-
Good dispersion of the 1- propyl alcohol in finishing varnish, pH stable, and the reunion collection of pigment can be prevented, storage stability is good, makes Lacquer finish
The performance of paint is more preferably.According to a preferred embodiment of the invention, pH adjusting agent can be AMP-95.Thus, thus, 2- amino -2-
Dispersiveness of the methyl isophthalic acid-propyl alcohol in finishing varnish more preferably, pH stable, and can effectively prevent the reunion collection of pigment, stable storing
Property more preferably, significantly improves the performance of finishing varnish.
Embodiments in accordance with the present invention, defoamer is organic silicon defoamer.Thus, defoamer can effectively eliminate cover
Foam in lac varnish, prevents the bad phenomenons such as pin hole, shrinkage cavity, flake and orange peel, influence dicoration and protectiveness.According to this
The preferred embodiment of invention, defoamer can for hamming this moral it is modest 5400.Thus, defoaming effect more preferably, the slickness of lacquer painting
Significantly improved with aesthetics.
Embodiments in accordance with the present invention, thickener is non-ionic polyurethane association thickener.Inventor has found, in this hair
In the component of bright embodiment, excellent middle and high shear viscosity can be provided using non-ionic polyurethane association thickener, make storage
Deposit stability and application property is significantly improved, so that, make finishing varnish according to embodiments of the present invention that further there is higher attachment
Property and water resistance, preferable slickness, stronger stability.
Embodiments in accordance with the present invention, the viscosity of the finishing varnish is 60-70KU.It should be noted that the viscosity is 25 DEG C
Viscosity under the conditions of ± 1.Inventor has found, if the viscosity of finishing varnish is too low, easy sagging, viscosity when product can be caused to construct
Too high, it is uniform in spraying to be difficult atomization, it is impossible to which amount of water is not, it is necessary to the viscosity reduction that adds water, during construction for the film as continuous uniform
Can Authority Contro1.And when the viscosity of finishing varnish is 60-70KU, viscosity is suitable, film forming and coating are good.
Embodiments in accordance with the present invention, the finishing varnish is aqueous high-performance dumb light finishing varnish.
According to another aspect of the present invention, the invention provides a kind of method for preparing finishing varnish.According to the reality of the present invention
Example is applied, this method includes：Under the first stirring condition, added into silicone acrylic emulsion after delustring emulsion, add pH adjusting agent, disappear
Infusion, preservative and deionized water simultaneously stir mixing, obtain the first mixture；Under the second stirring condition, to the first mixture
Middle addition coalescents, obtain the second mixture；Under the 3rd stirring condition, thickener is added into the second mixture, is obtained
The finishing varnish.
The method for preparing finishing varnish according to embodiments of the present invention, by by silicone acrylic emulsion and delustring latex blend, making cover
The transparency, water resistance, the weatherability of lac varnish are significantly improved.So as to reach that complete mute paint film is same with the finishing varnish of above-mentioned preparation
When, with adhesive force is strong, film transparency and flatness are good, dirt-resistant self-cleaning performance is protruded, and water-fast and weather resistance is good, and storage is steady
It is qualitative good, and be readily cleaned and can firmly be attached on new and old metope and possess the more preferable transparency.
Embodiments in accordance with the present invention, the mixing speed of the first stirring condition is 300--500r/min.According to the present invention's
Embodiment, the mixing speed of the second stirring condition is 500-800r/min.Embodiments in accordance with the present invention, the 3rd stirring condition
Mixing speed is 700-1200r/min.Thus, it is stirred using different mixing speeds, not only raw material is mixed faster
Close uniform, while avoiding raw material from destroying properties of product in the case where rotating speed is too high.
For the ease of understanding the method for preparing finishing varnish, a kind of conventional method for preparing finishing varnish, method are provided herein
It is as follows：
(1) in get the raw materials ready pot or cylinder of getting the raw materials ready, the silicone acrylic emulsion accurately measured is added, is placed under high speed dispersor, started high
Fast dispersion machine, under 300-500r/min stirrings, is uniformly slowly added to delustring emulsion, stirs 3-4min, sequentially adds pH regulations
Agent, defoamer, preservative and deionized water, stir 2-3min, obtain the first mixture；
(2) under 500-800r/min stirrings, coalescents are slowly added into the first mixture, 4-5min is stirred, obtains
To the second mixture.
(3) under 700-1200r/min stirrings, thickener is added into the second mixture.Viscosity is adjusted to 60-70KU
(25 DEG C ± 1), that is, obtain aqueous high-performance dumb light finishing varnish.
Below with reference to specific embodiment, the present invention will be described, it is necessary to which explanation, these embodiments are only explanation
Property, and be not considered as limiting the invention.
Embodiment 1
(1) in pot of getting the raw materials ready, 120g silicone acrylic emulsion (rich purchased from Ahmedabad, model RS-996AD) is added, is placed in and divides at a high speed
Dissipate under machine, start high speed dispersor, under 400r/min stirrings, be uniformly slowly added to 430g delustring emulsions, stir 3min, obtain the
One mixture；
(2) added in the first mixture and sequentially add pH adjusting agent 2.2g (2-amino-2-methyl-1-propanol), 3.5g
Defoamer sea (modest purchased from Ming Side, model 5400), 3g preservatives (being purchased from Sol, model MBS) and 12g deionized waters, stirring
3min, obtains the second mixture；
(3) under 700r/min stirrings, 35g coalescents is slowly added into the second mixture and (are purchased from the U.S., model K-
FLEX850S), 4min is stirred, the 3rd mixture is obtained.
(4) under 1000r/min stirrings, 1.6g thickeners are added into the 3rd mixture (purchased from DOW Chemical, model
RM-2020), adjustment viscosity obtains aqueous high-performance dumb light finishing varnish to 60-70KU (25 DEG C ± 1).
Embodiment 2
(1) in pot of getting the raw materials ready, 150g silicone acrylic emulsion (rich purchased from Ahmedabad, model RS-996AD) is added, is placed in and divides at a high speed
Dissipate under machine, start high speed dispersor, under 300r/min stirrings, be uniformly slowly added to 450g delustring emulsions, stir 4min, obtain the
One mixture；
(2) added in the first mixture and sequentially add pH adjusting agent 2.5g (2-amino-2-methyl-1-propanol), 4g and disappear
Infusion sea (modest purchased from Ming Side, model 5400), 4g preservatives (being purchased from Sol, model MBS) and 15g deionized waters, stirring
3min, obtains the second mixture；
(3) under 500r/min stirrings, 40g coalescents is slowly added into the second mixture and (are purchased from the U.S., model K-
FLEX850S), 4min is stirred, the 3rd mixture is obtained.
(4) under 700r/min stirrings, 1.5g thickeners are added into the 3rd mixture (purchased from DOW Chemical, model RM-
2020), adjustment viscosity obtains aqueous high-performance dumb light finishing varnish to 60-70KU (25 DEG C ± 1).
Embodiment 3
(1) in pot of getting the raw materials ready, 180g silicone acrylic emulsion (rich purchased from Ahmedabad, model RS-996AD) is added, is placed in and divides at a high speed
Dissipate under machine, start high speed dispersor, under 500r/min stirrings, be uniformly slowly added to 480g delustring emulsions, stir 4min, obtain the
One mixture；
(2) added in the first mixture and sequentially add pH adjusting agent 2.8g (2-amino-2-methyl-1-propanol), 4.5g
Defoamer sea (modest purchased from Ming Side, model 5400), 5g preservatives (being purchased from Sol, model MBS) and 16g deionized waters, stirring
3min, obtains the second mixture；
(3) under 800r/min stirrings, 45g coalescents is slowly added into the second mixture and (are purchased from the U.S., model K-
FLEX850S), 4min is stirred, the 3rd mixture is obtained.
(4) under 1200r/min stirrings, 1.3g thickeners are added into the 3rd mixture (purchased from DOW Chemical, model
RM-2020), adjustment viscosity obtains aqueous high-performance dumb light finishing varnish to 60-70KU (25 DEG C ± 1).
Embodiment 4
Finishing varnish obtained by embodiment 1-3 and competing product dumb light finish (being purchased from Beijing good fortune lion, model 2042) are carried out
Following Quality Detection, concrete outcome is as follows：
(1) basic performance is detected
The detection is according to GB/T9755-2014《Exterior wall coating material of synthetic resin emulsion》And GB24408-2009《It is for building
Limits of harmful substances in exterior coating》Totally 2 standards are detected that concrete outcome is as shown in the table：
(2) the paint film transparency
The finishing varnish of embodiment 1-3 and competing product is scratched on transparency glass plate respectively with 150 μm of wet film makers.Wet
Under conditions of degree 50%, 25 DEG C of temperature, visual comparison's transparency after film 48h is conserved.Background end liner, mesh are used as using hiding power chart
Depending on comparative example and the transparency of competing product film, wherein, embodiment 1-3 film is as shown in figure 1, film such as Fig. 2 of competing product
Shown, embodiment 1-3 transparency is substantially better than competing product.
(3) storage stability
Under the conditions of temperature 50 C, the finishing varnish of embodiment 1-3 and competing product is distinguished into sealed type storage 1 month.Upper strata is taken to apply
Material detects coating film gloss again, and calculates gloss rate of change, as a result as follows：
| Inspection project | Embodiment 1 | Embodiment 2 | Embodiment 3 | Competing product |
| Gloss (60 °)/% before storage | 16.5 | 16.9 | 17.8 | 17.3 |
| Gloss (60 °)/% after storage | 16.7 | 17.4 | 18.1 | 19.5 |
| Gloss rate of change/% | 1.2 | 2.9 | 1.6 | 12.7 |
In summary, with the dumb light finishing varnish and comparative example of silicone acrylic emulsion and the embodiment of the present invention of delustring latex blend
Conventional dumb light paint is compared, and the dumb light finishing varnish of the embodiment of the present invention is in weather-proof, water-fast, transparency, storage stability and ring
Excellent performance is shown in the index of border.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means to combine specific features, structure, material or the spy that the embodiment or example are described
Point is contained at least one embodiment of the present invention or example.In this manual, to the schematic representation of above-mentioned term not
Necessarily refer to identical embodiment or example.Moreover, specific features, structure, material or the feature of description can be any
One or more embodiments or example in combine in an appropriate manner.
Although an embodiment of the present invention has been shown and described, it will be understood by those skilled in the art that：Not
In the case of departing from the principle and objective of the present invention a variety of change, modification, replacement and modification can be carried out to these embodiments, this
The scope of invention is limited by claim and its equivalent.
Claims (10)
1. a kind of finishing varnish, it is characterised in that including：
The silicone acrylic emulsion of 10-20 mass parts；
The delustring emulsion of 40-50 mass parts；
The coalescents of 3-5 mass parts；
0.3-0.5 mass parts defoamers；
0.2-0.3 mass parts pH adjusting agents；
1.2-1.8 mass parts thickeners；
0.2-0.6 mass parts preservatives；And
10-20 mass parts deionized waters.
2. finishing varnish according to claim 1, it is characterised in that the silicone acrylic emulsion is 13-17 mass parts, it is preferable that
For 15 mass parts,
Optionally, the delustring emulsion is 43-47 mass parts, it is preferable that be 45 mass parts.
3. finishing varnish according to claim 1, it is characterised in that the silicone acrylic emulsion has core shell structure.
4. finishing varnish according to claim 1, it is characterised in that the silicon content of the silicone acrylic emulsion is 4-6%.
5. finishing varnish according to claim 1, it is characterised in that the delustring emulsion is water-borne polyurethane-acrylate class
Delustring emulsion.
6. finishing varnish according to claim 1, it is characterised in that the coalescents contain dibenzoate,
Optionally, the pH adjusting agent is 2-amino-2-methyl-1-propanol.
7. finishing varnish according to claim 1, it is characterised in that the defoamer is organic silicon defoamer,
Optionally, the thickener is non-ionic polyurethane association thickener.
8. finishing varnish according to claim 1, it is characterised in that the viscosity of the finishing varnish is 60-70KU.
9. a kind of method for preparing finishing varnish, it is characterised in that including：
Under the first stirring condition, added into silicone acrylic emulsion after delustring emulsion, add pH adjusting agent, defoamer, preservative
With deionized water and stir mixing, to obtain the first mixture；
Under the second stirring condition, coalescents are added into first mixture, to obtain the second mixture；And
Under the 3rd stirring condition, thickener is added into second mixture, to obtain the finishing varnish.
10. method according to claim 9, it is characterised in that the mixing speed of first stirring condition is 300--
500r/min,
Optionally, the mixing speed of second stirring condition is 500-800r/min,
Optionally, the mixing speed of the 3rd stirring condition is 700-1200r/min.
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| CN201710443820.1A CN107189670A (en) | 2017-06-13 | 2017-06-13 | Finishing varnish and preparation method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710443820.1A CN107189670A (en) | 2017-06-13 | 2017-06-13 | Finishing varnish and preparation method thereof |
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| CN109181454A (en) * | 2018-08-13 | 2019-01-11 | 广州昊特建材有限公司 | A kind of finishing varnish, preparation method and application |
| CN111876038A (en) * | 2020-06-24 | 2020-11-03 | 雷帝(中国)建筑材料有限公司 | Finish paint for decorative mortar and preparation method thereof |
| CN112280413A (en) * | 2020-11-13 | 2021-01-29 | 和平县长丰环保新材料有限公司 | Finishing paint and preparation method and application thereof |
| WO2021074767A1 (en) * | 2019-10-16 | 2021-04-22 | Clariant India Limited | Dirt pick up resistant additive |
| CN117625045A (en) * | 2023-11-28 | 2024-03-01 | 广东嘉宝莉科技材料有限公司 | Aurora finish varnish and preparation method thereof |
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| DE10248799B4 (en) * | 2002-10-19 | 2007-03-15 | Georg Gros | Particle-containing coating composition and method for coating surfaces |
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| WO2021074767A1 (en) * | 2019-10-16 | 2021-04-22 | Clariant India Limited | Dirt pick up resistant additive |
| CN111876038A (en) * | 2020-06-24 | 2020-11-03 | 雷帝(中国)建筑材料有限公司 | Finish paint for decorative mortar and preparation method thereof |
| CN112280413A (en) * | 2020-11-13 | 2021-01-29 | 和平县长丰环保新材料有限公司 | Finishing paint and preparation method and application thereof |
| CN117625045A (en) * | 2023-11-28 | 2024-03-01 | 广东嘉宝莉科技材料有限公司 | Aurora finish varnish and preparation method thereof |
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