CN109868030A - A kind of coatings and its application method and application - Google Patents
A kind of coatings and its application method and application Download PDFInfo
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- CN109868030A CN109868030A CN201811598877.XA CN201811598877A CN109868030A CN 109868030 A CN109868030 A CN 109868030A CN 201811598877 A CN201811598877 A CN 201811598877A CN 109868030 A CN109868030 A CN 109868030A
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- 238000000576 coating method Methods 0.000 title claims abstract description 73
- 238000000034 method Methods 0.000 title claims abstract description 14
- 239000003973 paint Substances 0.000 claims abstract description 32
- 239000012745 toughening agent Substances 0.000 claims abstract description 16
- 239000004814 polyurethane Substances 0.000 claims abstract description 15
- 229920002635 polyurethane Polymers 0.000 claims abstract description 15
- 239000003822 epoxy resin Substances 0.000 claims abstract description 11
- 229920000647 polyepoxide Polymers 0.000 claims abstract description 11
- 239000007822 coupling agent Substances 0.000 claims abstract description 8
- 239000003085 diluting agent Substances 0.000 claims abstract description 7
- 125000000524 functional group Chemical group 0.000 claims abstract description 6
- 239000006087 Silane Coupling Agent Substances 0.000 claims description 6
- 238000007711 solidification Methods 0.000 claims description 6
- 230000008023 solidification Effects 0.000 claims description 6
- 239000003960 organic solvent Substances 0.000 claims description 3
- -1 aldehyde radical Chemical class 0.000 claims description 2
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 claims description 2
- 150000001875 compounds Chemical class 0.000 claims description 2
- 125000004185 ester group Chemical group 0.000 claims description 2
- 229910052736 halogen Inorganic materials 0.000 claims description 2
- 150000002367 halogens Chemical class 0.000 claims description 2
- 125000002887 hydroxy group Chemical group [H]O* 0.000 claims description 2
- 239000002904 solvent Substances 0.000 claims description 2
- JCXJVPUVTGWSNB-UHFFFAOYSA-N Nitrogen dioxide Chemical class O=[N]=O JCXJVPUVTGWSNB-UHFFFAOYSA-N 0.000 claims 1
- 238000005498 polishing Methods 0.000 claims 1
- 229920000768 polyamine Polymers 0.000 abstract description 11
- 230000015556 catabolic process Effects 0.000 abstract description 3
- 239000008199 coating composition Substances 0.000 abstract description 3
- 238000010276 construction Methods 0.000 abstract description 3
- 150000007824 aliphatic compounds Chemical class 0.000 abstract description 2
- 230000015572 biosynthetic process Effects 0.000 abstract description 2
- 239000004615 ingredient Substances 0.000 abstract description 2
- 239000011810 insulating material Substances 0.000 abstract description 2
- 238000005457 optimization Methods 0.000 abstract description 2
- 238000012423 maintenance Methods 0.000 abstract 2
- 230000000052 comparative effect Effects 0.000 description 12
- 239000011248 coating agent Substances 0.000 description 11
- 239000000203 mixture Substances 0.000 description 8
- 238000002360 preparation method Methods 0.000 description 7
- 229910052751 metal Inorganic materials 0.000 description 6
- 239000002184 metal Substances 0.000 description 6
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 5
- 238000001035 drying Methods 0.000 description 5
- 244000144992 flock Species 0.000 description 5
- LNEPOXFFQSENCJ-UHFFFAOYSA-N haloperidol Chemical class C1CC(O)(C=2C=CC(Cl)=CC=2)CCN1CCCC(=O)C1=CC=C(F)C=C1 LNEPOXFFQSENCJ-UHFFFAOYSA-N 0.000 description 5
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 4
- 239000003795 chemical substances by application Substances 0.000 description 4
- 238000009413 insulation Methods 0.000 description 4
- 229920002037 poly(vinyl butyral) polymer Polymers 0.000 description 4
- 229920002689 polyvinyl acetate Polymers 0.000 description 4
- 239000011118 polyvinyl acetate Substances 0.000 description 4
- 206010014357 Electric shock Diseases 0.000 description 3
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 3
- AFCARXCZXQIEQB-UHFFFAOYSA-N N-[3-oxo-3-(2,4,6,7-tetrahydrotriazolo[4,5-c]pyridin-5-yl)propyl]-2-[[3-(trifluoromethoxy)phenyl]methylamino]pyrimidine-5-carboxamide Chemical compound O=C(CCNC(=O)C=1C=NC(=NC=1)NCC1=CC(=CC=C1)OC(F)(F)F)N1CC2=C(CC1)NN=N2 AFCARXCZXQIEQB-UHFFFAOYSA-N 0.000 description 3
- 239000000853 adhesive Substances 0.000 description 3
- 230000001070 adhesive effect Effects 0.000 description 3
- 235000019441 ethanol Nutrition 0.000 description 3
- 229910052739 hydrogen Inorganic materials 0.000 description 3
- 239000001257 hydrogen Substances 0.000 description 3
- RPNUMPOLZDHAAY-UHFFFAOYSA-N Diethylenetriamine Chemical compound NCCNCCN RPNUMPOLZDHAAY-UHFFFAOYSA-N 0.000 description 2
- 239000004593 Epoxy Substances 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- LRHPLDYGYMQRHN-UHFFFAOYSA-N N-Butanol Chemical compound CCCCO LRHPLDYGYMQRHN-UHFFFAOYSA-N 0.000 description 2
- 229920002292 Nylon 6 Polymers 0.000 description 2
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 2
- 230000001680 brushing effect Effects 0.000 description 2
- 239000003153 chemical reaction reagent Substances 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 238000010790 dilution Methods 0.000 description 2
- 239000012895 dilution Substances 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 235000019439 ethyl acetate Nutrition 0.000 description 2
- 150000002171 ethylene diamines Chemical class 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 208000014674 injury Diseases 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- DILRJUIACXKSQE-UHFFFAOYSA-N n',n'-dimethylethane-1,2-diamine Chemical compound CN(C)CCN DILRJUIACXKSQE-UHFFFAOYSA-N 0.000 description 2
- 238000011056 performance test Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000010998 test method Methods 0.000 description 2
- OTEKOJQFKOIXMU-UHFFFAOYSA-N 1,4-bis(trichloromethyl)benzene Chemical compound ClC(Cl)(Cl)C1=CC=C(C(Cl)(Cl)Cl)C=C1 OTEKOJQFKOIXMU-UHFFFAOYSA-N 0.000 description 1
- XNWFRZJHXBZDAG-UHFFFAOYSA-N 2-METHOXYETHANOL Chemical compound COCCO XNWFRZJHXBZDAG-UHFFFAOYSA-N 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 244000137852 Petrea volubilis Species 0.000 description 1
- 239000004793 Polystyrene Substances 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 238000004378 air conditioning Methods 0.000 description 1
- 239000002518 antifoaming agent Substances 0.000 description 1
- 239000012752 auxiliary agent Substances 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000002738 chelating agent Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- RGPUVZXXZFNFBF-UHFFFAOYSA-K diphosphonooxyalumanyl dihydrogen phosphate Chemical compound [Al+3].OP(O)([O-])=O.OP(O)([O-])=O.OP(O)([O-])=O RGPUVZXXZFNFBF-UHFFFAOYSA-K 0.000 description 1
- 239000002270 dispersing agent Substances 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 125000001449 isopropyl group Chemical group [H]C([H])([H])C([H])(*)C([H])([H])[H] 0.000 description 1
- KVKFRMCSXWQSNT-UHFFFAOYSA-N n,n'-dimethylethane-1,2-diamine Chemical compound CNCCNC KVKFRMCSXWQSNT-UHFFFAOYSA-N 0.000 description 1
- 125000000449 nitro group Chemical group [O-][N+](*)=O 0.000 description 1
- 229920002223 polystyrene Polymers 0.000 description 1
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 230000035882 stress Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 150000003457 sulfones Chemical class 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000005491 wire drawing Methods 0.000 description 1
Landscapes
- Paints Or Removers (AREA)
Abstract
The invention belongs to insulating materials technical fields, and in particular to a kind of coatings and its application method and application.The coatings include fat polyamine, toughener, diluent, coupling agent, polyurethane modified epoxy resin, the coating composition is simple, pass through the optimization of selection and dosage to recipe ingredient, make to act synergistically between each component, the electrical insulating property of coatings is improved, the volume resistance of the paint film of formation reaches as high as 9.4 × 1012Ω, breakdown voltage is up to 24kV；The volume resistance and curing rate of paint film can be improved in the fat polyamine that the present invention uses, and shortens the normal temperature cure time；The dielectric properties and insulating properties of paint film can be enhanced using the aliphatic compound with the functional group that can be reacted for toughener.The coatings are used in screen door in rail transit, in practical applications using simplicity, and are not influenced by construction environment, the maintenance and maintenance of shield door during being easy to run.
Description
Technical field
The invention belongs to insulating materials technical fields, and in particular to a kind of coatings and its application method and application.
Background technique
As Development of China's Urbanization develops, China's urban construction scale constantly expands, and urban track traffic enters quick hair
The stage of exhibition.For at present, most of region in city and small towns has been covered in rail traffic, to alleviate traffic pressure tribute
Important strength has been offered, while having also become the first choice of public trip mode.
In rail traffic, setting shield door can fall track to avoid personnel and cause an accident, while can reduce station
The operation energy consumption and Running Train Noise of air-conditioning ventilation system.But train is per se with voltage, can train and shield door it
Between generate potential difference, easily make to wait the passenger of vehicles to cause electric shock in platform side and bring the loss of life and property.
The electric shock injury generated when covering in order to avoid the upper Train touch screen of passenger, needed to screen door and its week
Side platform region carries out insulation processing.It is to carry out pad pasting on door body surface mostly by the way of in previous insulating protection
Processing, still, is then difficult to accomplish the protection of comprehensive cover type in the region of this surface imperfection such as door handle, out-of-flatness, and
Coatings then do not have rigors to the surface shape of process object, and each region, energy can be sprayed to by coating processes
Enough generations for effectively avoiding the above problem.For example, being disclosed a kind of for door and window in Chinese patent literature CN104725989A
Environmentally friendly coatings and preparation method thereof, the coatings include aluminium dihydrogen phosphate, epoxy resin, waterborne polyurethane modified
Epoxy resin, filler, solvent, chelating agent, dispersing agent, defoaming agent, curing agent, silane coupling agent；The air insulation of the coating
It is preferable with waterproof insulation, but the electrical insulating property of the coating is poor, curing time is longer, curing rate is to be improved, and
The type for preparing the auxiliary agent that the coating is used is more, and coating composition is complex.
Summary of the invention
Therefore, the technical problem to be solved in the present invention is that overcoming coatings electrical insulating property in the prior art poor, solid
Change the disadvantages of time is long, composition is complex, to provide a kind of coatings and its application method and application.
To solve the above problems, the technical scheme adopted by the invention is as follows:
The present invention provides a kind of coatings, it is in terms of 100 parts by the coatings gross mass, consisting of,
The fat polyamine can be but not limited to polycaprolactam, diethylenetriamine or N, N- dimethyl-ethylenediamine.
The toughener is the aliphatic compound of at least functional group containing Liang Ge.
The functional group that the toughener includes can be but not limited to ester group, hydroxyl, carboxyl, aldehyde radical, nitro or halogen；
The toughener can be but not limited to polyvinyl butyral, polyvinyl acetate.
The diluent is organic solvent, can be but be not limited to ethyl alcohol, butanol, ethylene glycol, ethyl acetate or isopropyl
The organic solvents such as alcohol.
The coupling agent is silane coupling agent.
The polyurethane modified epoxy resin can use commercially available polyurethane modified epoxy resin, it is preferred that solvent-free
Type polyurethane modified epoxy.
The present invention provides a kind of application methods of above-mentioned coatings, and the surface of object to be coated is cleared up, is beaten
Mill, coats the coatings, forms paint film after solidification.
The paint film with a thickness of 30-70 μm.
The curing time is 2-4h.
The present invention provides a kind of application of above-mentioned coatings in screen door in rail transit.
Technical solution of the present invention has the advantages that
1. coatings provided by the invention, including polyurethane modified epoxy resin, fat polyamine, diluent, coupling agent,
Toughener；The coating composition is simple, by the optimization of selection and dosage to recipe ingredient, makes to act synergistically between each component,
The electrical insulating property of coatings is improved, the volume resistance of the paint film of formation reaches as high as 9.4 × 1012Ω, breakdown voltage are reachable
24kV.Wherein, the volume resistance and insulating properties of paint film can be improved in fat polyamine, shortens the curing time of paint film, and can be with
Be transparent paint film, form and aspect it is preferable；Using polyurethane modified epoxy resin as host agent, coatings can be made to have both polyurethane excellent
Different chemical stability and epoxy resin cure speed, can also be with fat fastly and outside the high advantage of metal base bond strength
Polyamines forms a large amount of hydrogen bonds, enhances the adhesive force of paint film and metal base；Polyurethane-modified epoxy resin and fat polyamine are anti-
It answers speed fast, can be improved the curing rate of coating, shorten the normal temperature cure time, when the surface drying of coatings prepared by the present invention
Between in 15min or so, curing time is in 2-4h.
In addition, the amino in fat polyamine can form cross-linked network layer and improve paint film and base in film curing process
The adhesive force of material.
2. coatings provided by the invention, wherein toughener selects the long-chain fat with the functional group that can be reacted
Compounds of group can further enhance the dielectric properties and insulating properties of the paint film to be formed；In the curing process, toughener, epoxy
Cross-linked network is formed between resin, fat polyamine, improves the flexibility of paint film, reduces the generation of paint film internal stress；The increasing
Tough dose facilitates coating film-forming under normal temperature conditions, reduces cure shrinkage.In addition, during film-forming, respectively
Cross-linked network and hydrogen bond are formed between the macromolecular chain of component, improve the structural stability, toughness and intensity of paint film, it can
It restores to the original state under biggish deformation and does not generate breakage；If paint film generates breakage, prepared by the present invention when there is micro-crack
Coatings will not generate micro-crack extension, i.e., after micro-crack occurs in paint film, which will not expand, if damaged degree is more than
After the order of magnitude of film thickness, damaged degree will not expand, and without carrying out whole coatings to coating, only need to coat this in breakage
The coatings of preparation are invented, will not influence the properties of paint film after film-forming, paint film is made to realize that insulation can restore；It is existing
After coatings form paint film, after paint film occurs damaged, due in paint film macromolecular chain structure it is unstable make damaged degree into
One step expands, and need to be coated again to whole, thus the performance of coatings prepared by the present invention to be substantially better than it is existing
Coatings.
3. coatings provided by the invention can form cross-linked network layer using silane coupling agent, and there are a large amount of hydrogen
Key, improves the binding force of paint film and metal base, while can prevent metal surface from generating corrosion and influencing service life, uses
Silane coupling agent can also greatly improve coating in the wellability of metal surface, facilitate the polytechnic reality such as brushing, spraying
It applies；Coating wearability and toughness can be enhanced using silane coupling agent.
4. coatings provided by the invention, coating environmental protection, solidify after paint film mechanical property it is good, compactness is good,
Ungauged regions, and it is non-aging, be not likely to produce xanthochromia, structural stability is good, long service life.
5. application of the coatings provided by the invention in screen door in rail transit, the coating use in practical applications
Simplicity when being applied to screen door in rail transit, reduces the potential difference between train and shield door, reduces passenger or more
Train generates the risk of electric shock injury when contacting shield door；And the coatings are not influenced in application by construction environment, than
Such as say moisture, dust, carbon adsorption；In the application of rail traffic, shield door can also be overhauled and be tieed up during operation
Shield.
Specific embodiment
There is provided following embodiments is to preferably further understand the present invention, it is not limited to the best embodiment party
Formula is not construed as limiting the contents of the present invention and protection scope, anyone under the inspiration of the present invention or by the present invention and its
The feature of his prior art is combined and any and identical or similar product of the present invention for obtaining, all falls within of the invention
Within protection scope.
Specific experiment step or condition person are not specified in embodiment, according to the literature in the art described routine experiment
The operation of step or condition can carry out.Reagents or instruments used without specified manufacturer, being can be by commercially available acquisition
Conventional reagent product.
1 part is 5g described in embodiment 1-5 and comparative example 1-2.
Embodiment 1
A kind of coatings are present embodiments provided, preparation method is,
Take 48.7 parts of polyurethane modified epoxy resins, 16 parts of diethylenetriamines (DETA), 25 parts of ethyl acetates, 4.3 parts
A151 (coupling agent) and 6 parts of polyvinyl butyrals (toughener) are uniformly mixed, then with high-speed mixer with 200r/min's
Revolving speed is stirred, when mixture becomes homogeneous transparent from white flock to get to coatings.
Embodiment 2
A kind of coatings are present embodiments provided, preparation method is,
Take 55 parts of polyurethane modified epoxy resins, 20 parts of N, N- dimethyl-ethylenediamine (DMDA), 15 parts of ethyl alcohol (diluent),
5 parts of KH540 (coupling agent) and 5 parts of polyvinyl acetate (toughener) are uniformly mixed, then with high-speed mixer with 200r/min's
Revolving speed is stirred, and obtains coatings when mixture becomes homogeneous transparent from white flock.
Embodiment 3
A kind of coatings are present embodiments provided, preparation method is,
Take 52.2 parts of polyurethane modified epoxy resins, 20 parts of ethylenediamines (EDA), 16 parts of normal octanes (diluent), 4.8 parts
A171 (coupling agent) and 7 parts of polyvinyl acetate (toughener) are uniformly mixed, then with high-speed mixer with the revolving speed of 200r/min
It is stirred, obtains coatings when mixture becomes homogeneous transparent from white flock.
Embodiment 4
A kind of coatings are present embodiments provided, preparation method is,
Take 50.5 parts of polyurethane modified epoxy resins, 16 parts of DETA (fat polyamine), 20 parts of glycol monomethyl ether (dilutions
Agent), 4.5 parts of KBM602 (coupling agent) and 9 parts of polyvinyl butyrals (toughener), be uniformly mixed, then use high-speed mixer
It is stirred with the revolving speed of 200r/min, obtains coatings when mixture becomes homogeneous transparent from white flock.
Embodiment 5
A kind of coatings are present embodiments provided, preparation method is,
Take 36 parts of polyurethane modified epoxy resins, 12 parts of polycaprolactams, 41 parts of dimethylbenzene (diluent), 5 parts of A171 idols
Join agent and 6 parts of polyvinyl acetate (toughener), is uniformly mixed, is then stirred with high-speed mixer with the revolving speed of 200r/min
It mixes, obtains coatings when mixture becomes homogeneous transparent from white flock.
Comparative example 1
This comparative example provides a kind of coatings, and composition is same as Example 1, and difference is, with diamino hexichol
Base sulfone replaces the DETA in embodiment 1.
Comparative example 2
This comparative example provides a kind of coatings, and composition is same as Example 1, and difference is, with polystyrene generation
For the polyvinyl butyral (toughener) in embodiment 1.
Concrete application test
The application method for present embodiments providing a kind of coatings and its application in shield door.
The identical shield door of 7 sizes is chosen, region of the same area is chosen, it is right using the floating ash on rag wiping surface
Its surface is cleared up, and with the dirts such as water or dilution material cleaning surface blot, iron rust, is beaten with sand paper to the same direction wire drawing
It grinds, exposing metal surface, after the dust for wiping out surface, the obtained coatings of embodiment 1-5 and comparative example 1-2 is applied respectively
It is overlying on above shield door, after solidification, its performance is tested, test method is as follows, and the performance test results are shown in Table 1；
The test method of coatings performance:
Film thickness: GB/T13452.2-2008；
Volume resistance: GB/T 1404-2006；
Breakdown voltage: GB/T 1408.1-2006；
Adhesive force: GB/T 1404-2006；
It is wear-resistant: ISO 4649-2010；
Hardness: GB/T 531.1-2008；
Impact resistance: GB/T1732-1993；
Seepage rate: HG/T3856-2006；
Curing time: being brushed to sample surfaces from coatings is node second timing, when sample surfaces form uniform nothing
It is surface drying when the film of cohesive force；It weighs after the completion of brushing to sample, was once weighed at interval of 5 minutes.When sample matter
It is solidification completely that amount is continuously measured as confirmatory sample when stablizing no longer decline three times；
In table 1, the meaning of curing time A/B are as follows: surface drying time (the h)/time (h) is fully cured.
The performance test results for the coatings that table 1 embodiment 1-5 and comparative example 1-2 is obtained
In table 1, curing time is that solidification obtains under normal temperature conditions if without explanation, and the paint film of comparative example 1 is at 150 DEG C
Lower solidification obtains.
As can be drawn from Table 1, for embodiment 1 compared with comparative example 1, the fat polyamine that the present invention uses can make coating exist
Film-forming under normal temperature condition, and surface drying time is 0.17h, time 3.5h is fully cured, curing time is short, and system of the present invention
The volume resistance of standby obtained paint film is larger, up to 9.4 × 1012Ω, insulating properties is preferable, and the paint film in comparative example 1 need to be 150
Drying and forming-film under the conditions of DEG C.
The volume resistance of paint film in embodiment 1 will be substantially better than the paint film in comparative example 2, illustrate the increasing that the present invention uses
The tough dose of volume resistance that can be improved paint film, i.e. insulating properties；In addition, the 1 film curing time of embodiment is less than in comparative example 2
Curing time illustrates that the toughener that the present invention uses helps to reduce curing time.
Obviously, the above embodiments are merely examples for clarifying the description, and does not limit the embodiments.It is right
For those of ordinary skill in the art, can also make on the basis of the above description it is other it is various forms of variation or
It changes.There is no necessity and possibility to exhaust all the enbodiments.And it is extended from this it is obvious variation or
It changes still within the protection scope of the invention.
Claims (10)
1. a kind of coatings, which is characterized in that by the coatings gross mass be 100 parts in terms of, consisting of,
2. coatings according to claim 1, which is characterized in that the toughener is the length of at least functional group containing Liang Ge
Chain fatty compounds of group.
3. coatings according to claim 2, which is characterized in that the functional group be ester group, hydroxyl, carboxyl, aldehyde radical,
Nitro or halogen.
4. coatings according to claim 1-3, which is characterized in that the diluent is organic solvent.
5. coatings according to claim 1-4, which is characterized in that the coupling agent is silane coupling agent.
6. coatings according to claim 1-5, which is characterized in that the polyurethane modified epoxy resin is
No-solvent type polyurethane modified epoxy resin.
7. a kind of application method of coatings described in any one of claims 1-6, which is characterized in that including will be to be coated
The surface of object is cleared up, and polishing coats the coatings, forms paint film after solidification.
8. the application method of coatings according to claim 7, which is characterized in that the paint film with a thickness of 30-70 μ
m。
9. the application method of coatings according to claim 7 or 8, which is characterized in that the curing time is 2-4h.
10. a kind of application of coatings described in any one of claims 1-6 in screen door in rail transit.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112940595A (en) * | 2019-12-11 | 2021-06-11 | 武汉惠帮地平工程有限公司 | Insulating high-resistance terrace and construction method |
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Application publication date: 20190611 |