CN104761153A - Super-hydrophilic anti-fog coating for glass and preparation method thereof - Google Patents
Super-hydrophilic anti-fog coating for glass and preparation method thereof Download PDFInfo
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- CN104761153A CN104761153A CN201510159808.9A CN201510159808A CN104761153A CN 104761153 A CN104761153 A CN 104761153A CN 201510159808 A CN201510159808 A CN 201510159808A CN 104761153 A CN104761153 A CN 104761153A
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Abstract
The invention discloses a super-hydrophilic anti-fog coating for glass. The coating is prepared from alkaline silicate, silica sol, a silane coupling agent, a thickener, a defoamer and the like. By taking super-hydrophilic alkaline silicate and silica sol as main raw materials, the super-hydrophilic, atomization-resistant, long-durable, highly water-resistant and high-hardness super-hydrophilic anti-fog coating for glass capable of being cured at normal temperature is prepared by virtue of compound reactions. The process is simple, low in cost and environment-friendly; the operating conditions are easily controlled, the problem that the existing coating is poor in atomization-resistant effect and durability and complex in preparation process is solved, the application and development of a super-hydrophilic technique are promoted.
Description
Technical field
The present invention relates to coated material technical field, particularly relate to super hydrophilic antifogging coating of a kind of glass and preparation method thereof.
Background technology
The atomization of glass refers to that moisture or vapor condensation form small water droplet at glass article surface, the precipitation of small water droplet makes light through out-of-date generation diffuse-reflectance, thus significantly reduces the transmittance of glass, occurs the phenomenon that hazes, make glass become opaque, affect visual effect.The phenomenon that hazes of glass surface can bring inconvenience to daily production and life, as the test eyeglass etc. of the glass port of: buildings, bathroom mirror, ophthalmic lens, instrument, especially when vehicle windscreen under cold environment hazes, can traffic safety be given, personnel safety brings serious harm.To this phenomenon, method comparatively conventional is on the market: (1) sprayed surface active agent method, makes glass surface hydrophilic; (2) cover polymer embrane method, make glass surface hydrophobic; (3) install heating unit, make glass surface temperature higher than dew point, but these methods have respective limitation: (1) surfactant stability is poor, need regularly repeatedly to spray, higher being not easy to of number of times, frequency uses; (2) cover polymeric membrane cause the wear-resisting of glass article surface and resistance toheat bad, and product need before dispatching from the factory overlay film, non-coated products is not easily implemented before; (3) time of heating evaporation water droplet is longer, and the method cost is large, fragile, not too practical.Therefore research and develop easily, wear resistance and good stability, and novel glass anti-fog method with low cost is very necessary.
After glass surface carries out special processing, as applied specific coating or constructing specific microtexture, make surface have super water-wet behavior, obtain the main trend that super hydrophilic antifogging glass is research at present.Super hydrophilic antifogging glass can make little water droplet contact angle on the glass surface level off to zero degree, when water touches glass surface, rapidly at its surface spreading, form uniform moisture film, the character that performance excess of export is hydrophilic, thus reach the effect not affecting mirror image, glass visibility meter and transmittance, realize anti-fog function.The research of super hydrophilic antifogging glass starts from 70 ~ eighties of eighties of last century in the world, mainly around TiO
2the application start of photocatalysis technology in glass.TiO
2photocatalyst film has photocatalysis Decomposition performance under irradiation by sunlight, and makes glass coating surface have super hydrophilic antifogging performance simultaneously, can reach perfect automatically cleaning effect under fluviation.But TiO
2base film glassy product cannot play a role, even if there is light also to need irradiation more than 2 hours just can obtain super hydrophilic effect not having the place of light or decreased light; TiO in addition
2film is not good enough in the stability of the photocatalysis performance of glass surface, easily because environment foreign matter causes photocatalytic activity decline, even inactivation in its surface accumulation.In addition, introduce the materials such as inorganic nano material, hydrophilic high molecular material and tensio-active agent by methods such as sol-gel, electrochemistry, redox, Template preparation at glass surface and also can increase surface energy and wettability, improve the wetting ability of glass surface, but these methods mostly need to use expensive plant and instrument or the technical process of complexity, be difficult to carry out low cost, the preparation of high efficiency ultra-hydrophilic surface.
At present by the restriction that preparation method, the physical strength of material surface microstructure, anti-fog effect and weather resistance are also undesirable etc., the method that preparation still lacks simply, economy and environment is friendly on super water wetted material surface.Therefore Study and Development has the developing direction that the coating of long-acting anti-fog function is current antifog technology, research and development easily, wear resistance and good weatherability and the Novel self-cleaning antifog glass that cost is low is very necessary and significant.
Summary of the invention
An object of the present invention is to provide a kind of super hydrophilic antifogging coating of glass simultaneously with ambient cure, high rigidity, high-durability.
Two of object of the present invention is to provide the preparation method of glass with super hydrophilic antifogging coating of object one, and this preparation method's technique is simple, cheaper starting materials, cost are low.
Object of the present invention has been come in the following manner:
The super hydrophilic antifogging preparation method for coating of a kind of glass of the present invention, is characterized in that containing following component:
100 mass parts alkaline silicates, 50 ~ 150 mass parts silicon sol, 1 ~ 20 mass parts silane coupling agent, 0 ~ 100 mass parts pure water, 0.5 ~ 20 mass parts thickening material, 0.5 ~ 20 mass parts defoamer.
Described alkaline silicate is at least one in potassium silicate, lithium silicate, water glass;
Described silane coupling agent is at least one in alkylalkoxy silane, vinyl alkoxy silane, aminoalkylalkoxysilane, hexamethyldisilazane, chlorine trimethyl silane;
Described thickening material is at least one in Natvosol, Xylo-Mucine, lithium algae soil, lithium magnesium silicate, neusilin, polyacrylamide;
Described defoamer is at least one in ethanol, tributyl phosphate, silicone antifoam agent.
The preparation of super hydrophilic antifogging coating of described glass comprises the steps:
Alkaline silicate is added in reactor, add quantitative water to stir, and adding silane coupling agent, thickening material, defoamer, silicon sol successively, after mixing and stirring, coating production method conveniently carries out disperseing, grinds, filters and make the antifog super hydrophilic coating of glass.
Relative to prior art, tool of the present invention has the following advantages and beneficial effect:
The present invention with the alkaline silicate of strongly hydrophilic and silicon sol for main raw material, prepared by complex reaction and there is super hydrophilic, the super hydrophilic antifogging coating of preventing atomization, weather resistance length, enhanced water resistance, high rigidity and normal temperature solidified glass, its technique is simple, with low cost, environmental protection, operational condition are easily controlled, efficiently solve the problem of existing coating preventing atomization effect and poor durability and complicated process of preparation at present, be conducive to the application and development promoting super hydrophilic technology.
Embodiment
Below by examples of implementation, the specific embodiment of the present invention is described in further detail, but embodiments of the present invention are not limited thereto.
embodiment 1
100 mass parts potassium silicates are added in reactor, the water adding 100 mass parts stirs, and add 1 mass parts vinyltriethoxysilane, 10 mass parts polyacrylamide thickeners, 1 mass parts ethanol defoamer, 150 mass parts silicon sol successively, after mixing and stirring, coating production method conveniently carries out disperseing, grinds, filters and make the antifog super hydrophilic coating of glass.
embodiment 2
100 mass parts potassium silicates are added in reactor, add 20 mass parts aminopropyl triethoxysilanes, 0.5 mass parts neusilin thickening material, 0.5 mass parts silicone antifoam agent defoamer, 50 mass parts silicon sol successively, after mixing and stirring, coating production method conveniently carries out disperseing, grinds, filters and make the antifog super hydrophilic coating of glass.
embodiment 3
100 mass parts lithium silicates are added in reactor, the water adding 50 mass parts stirs, and add 10 mass parts γ-glycidyl ether oxygen propyl trimethoxy silicane, 20 mass parts lithium magnesium silicate thickening materials, 5 mass parts tributyl phosphate defoamers, 150 mass parts silicon sol successively, after mixing and stirring, coating production method conveniently carries out disperseing, grinds, filters and make the antifog super hydrophilic coating of glass.
embodiment 4
100 mass parts lithium silicates are added in reactor, the water adding 70 mass parts stirs, and add 20 mass parts Union carbide A-162s, 5 mass parts lithium algae soil thickening material, 3 mass parts silicone antifoam agent defoamers, 100 mass parts silicon sol successively, after mixing and stirring, coating production method conveniently carries out disperseing, grinds, filters and make the antifog super hydrophilic coating of glass.
embodiment 5
100 mass parts water glass are added in reactor, the water adding 60 mass parts stirs, and add 5 mass parts chlorine trimethyl silanes, 10 mass parts sodium carboxymethyl cellulose thickeners, 20 mass parts tributyl phosphate defoamers, 120 mass parts silicon sol successively, after mixing and stirring, coating production method conveniently carries out disperseing, grinds, filters and make the antifog super hydrophilic coating of glass.
embodiment 6
100 mass parts water glass are added in reactor, the water adding 20 mass parts stirs, and add 15 mass parts hexamethyldisilazanes, 8 mass parts hydroxyethylcellulose thickener, 0.5 mass parts ethanol defoamer, 70 mass parts silicon sol successively, after mixing and stirring, coating production method conveniently carries out disperseing, grinds, filters and make the antifog super hydrophilic coating of glass.
The of the present invention glass obtained to aforesaid method applies at glass surface respectively with antifog super hydrophilic coating, Air drying, and obtain the coating that thickness is 20 microns, and carried out performance characterization to it, its particular result is as shown in the table:
As can be seen from the table, the antifog super hydrophilic coating of glass of the present invention not only has the feature of super hydrophilic antifogging, and there is normal temperature solidified, the feature such as enhanced water resistance, high rigidity, glass simultaneously in embodiment with antifog super hydrophilic coating after normal temperature placed for 2 years, still there is super hydrophilic antifogging feature, there is good weather resistance feature.Meanwhile, not containing organic volatile in the preparation technology of coating, good environmental protection.
Claims (3)
1. the super hydrophilic antifogging coating of glass, is characterized in that containing following component:
100 mass parts alkaline silicates, 50 ~ 150 mass parts silicon sol, 1 ~ 20 mass parts silane coupling agent, 0 ~ 100 mass parts pure water, 0.5 ~ 20 mass parts thickening material, 0.5 ~ 20 mass parts defoamer.
2. the super hydrophilic antifogging coating of glass according to claim 1, is characterized in that:
Described alkaline silicate is at least one in potassium silicate, lithium silicate, water glass;
Described silane coupling agent is at least one in alkylalkoxy silane, vinyl alkoxy silane, aminoalkylalkoxysilane, hexamethyldisilazane, chlorine trimethyl silane;
Described thickening material is at least one in Natvosol, Xylo-Mucine, lithium algae soil, lithium magnesium silicate, neusilin, polyacrylamide;
Described defoamer is at least one in ethanol, tributyl phosphate, silicone antifoam agent.
3. the preparation method of super hydrophilic antifogging coating of the glass according to any one of claim 1 ~ 2, is characterized in that: the preparation of the super hydrophilic antifogging coating of described glass comprises the steps:
Alkaline silicate is added in reactor, add quantitative water to stir, and adding silane coupling agent, thickening material, defoamer, silicon sol successively, after mixing and stirring, coating production method conveniently carries out disperseing, grinds, filters and make the antifog super hydrophilic coating of glass.
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| CN201510159808.9A CN104761153A (en) | 2015-04-07 | 2015-04-07 | Super-hydrophilic anti-fog coating for glass and preparation method thereof |
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| CN201510159808.9A CN104761153A (en) | 2015-04-07 | 2015-04-07 | Super-hydrophilic anti-fog coating for glass and preparation method thereof |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105038430A (en) * | 2015-08-26 | 2015-11-11 | 太仓市金新涂料有限公司 | Super-hydrophilic anti-fogging coating |
| CN105482536A (en) * | 2016-02-03 | 2016-04-13 | 广州希森美克新材料科技有限公司 | Transparent and antimicrobial hydrophilic paint |
| CN107385421A (en) * | 2017-08-31 | 2017-11-24 | 广东工业大学 | A kind of hydrophilic laminated film of heat conduction and preparation method thereof |
| CN108137945A (en) * | 2015-10-09 | 2018-06-08 | 株式会社世可 | Antifoggant |
| CN108753011A (en) * | 2018-06-26 | 2018-11-06 | 常州穗时新材料有限公司 | A kind of hydrophilic Silicone hard coats and preparation method |
| CN109749489A (en) * | 2019-01-08 | 2019-05-14 | 沙河市湡久新材料有限公司 | coating composition and its preparation method and application |
| CN112920707A (en) * | 2021-04-08 | 2021-06-08 | 广东邦固化学科技有限公司 | Super-hydrophilic silicon nano coating and preparation method thereof |
| CN113736292A (en) * | 2021-09-10 | 2021-12-03 | 上海保耐舒新材料技术有限公司 | Inorganic nano long-acting antifogging self-cleaning coating and preparation method and application thereof |
| CN114479155A (en) * | 2022-03-03 | 2022-05-13 | 科伦塑业集团股份有限公司 | Super-hydrophilic antifogging nano film for agricultural film and preparation method thereof |
| CN114854233A (en) * | 2022-06-20 | 2022-08-05 | 湛蓝新材料(中山)有限公司 | Super-hydrophilic coating of stainless steel water tank and preparation method thereof |
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| US4466832A (en) * | 1981-11-06 | 1984-08-21 | Daikin Kogyo Company, Limited | Composition for forming hydrophilic coating |
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| CN103333539A (en) * | 2013-05-28 | 2013-10-02 | 苏州绿创环保新材料有限公司 | Silicate-type inorganic aqueous high-temperature heat-resistant coating and preparation method thereof |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105038430A (en) * | 2015-08-26 | 2015-11-11 | 太仓市金新涂料有限公司 | Super-hydrophilic anti-fogging coating |
| CN108137945A (en) * | 2015-10-09 | 2018-06-08 | 株式会社世可 | Antifoggant |
| CN108137945B (en) * | 2015-10-09 | 2020-08-21 | 株式会社世可 | Antifogging agent |
| CN105482536A (en) * | 2016-02-03 | 2016-04-13 | 广州希森美克新材料科技有限公司 | Transparent and antimicrobial hydrophilic paint |
| CN107385421A (en) * | 2017-08-31 | 2017-11-24 | 广东工业大学 | A kind of hydrophilic laminated film of heat conduction and preparation method thereof |
| CN108753011A (en) * | 2018-06-26 | 2018-11-06 | 常州穗时新材料有限公司 | A kind of hydrophilic Silicone hard coats and preparation method |
| CN108753011B (en) * | 2018-06-26 | 2020-12-29 | 常州穗时新材料有限公司 | Hydrophilic organic silicon hard coating and preparation method thereof |
| CN109749489A (en) * | 2019-01-08 | 2019-05-14 | 沙河市湡久新材料有限公司 | coating composition and its preparation method and application |
| CN112920707A (en) * | 2021-04-08 | 2021-06-08 | 广东邦固化学科技有限公司 | Super-hydrophilic silicon nano coating and preparation method thereof |
| CN113736292A (en) * | 2021-09-10 | 2021-12-03 | 上海保耐舒新材料技术有限公司 | Inorganic nano long-acting antifogging self-cleaning coating and preparation method and application thereof |
| CN114479155A (en) * | 2022-03-03 | 2022-05-13 | 科伦塑业集团股份有限公司 | Super-hydrophilic antifogging nano film for agricultural film and preparation method thereof |
| CN114854233A (en) * | 2022-06-20 | 2022-08-05 | 湛蓝新材料(中山)有限公司 | Super-hydrophilic coating of stainless steel water tank and preparation method thereof |
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Application publication date: 20150708 |