CN103666246A - Photocatalytic super-hydrophilic transparent self-cleaning paint - Google Patents
Photocatalytic super-hydrophilic transparent self-cleaning paint Download PDFInfo
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- CN103666246A CN103666246A CN201310661196.4A CN201310661196A CN103666246A CN 103666246 A CN103666246 A CN 103666246A CN 201310661196 A CN201310661196 A CN 201310661196A CN 103666246 A CN103666246 A CN 103666246A
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Abstract
The invention discloses a photocatalytic super-hydrophilic transparent self-cleaning paint. The paint is composed of the following components in percentage by weight: 20 to 25% of water, 0.1 to 0.2% of multifunctional auxiliary agent, 0.05 to 0.1% of wetting agent, 0.1 to 0.3% of dispersant, 0.1 to 0.3% of antifoaming agent, 70 to 75% of emulsion, 0.1 to 0.2% of self-cleaning photocatalyst, 1 to 2% of Texanol, 0.1 to 0.2% of antiseptic, and 0.6 to 0.9% of thickening agent. The outer wall paint has the advantages of weatherability, contamination resistance, and super-hydrophilicity, and has a self-cleaning function.
Description
Technical field the present invention relates to a kind of coating, and particularly a kind of protection for skin surface and decoration have the Clear paint with " automatically cleaning " function of high-weatherability and Superhydrophilic, belong to chemistry painting industry technical field.
The coating that background technology has self-cleaning function is not a fresh noun, and in the time of 2000, Germany has just released the silicone resin exterior coating with " lotus leaf automatically cleaning " function, and metope dust can reach self-cleaning effect by rain drop erosion.But due to cost and result of use problem, the final not large-scale marketization, self-cleaning coating is short-lived.Continually developing and applying along with nano material, a lot of mechanisms of recent year self-cleaning coating that begins one's study one after another, utilize the photocatalysis of nano material (TiO2/SiO2) to realize self-cleaning function, such technology and product are widely used in fields such as automobile, glass, pottery, light fixtures.
Exterior coating, because coating is exposed in atmospheric environment, stand wind, Exposure to Sunlight, drench with rain, the Changes in weather such as haze, and because environmental pollution is day by day serious, dust and suspended matter in atmosphere are more, can easily make coating generation efflorescence, variable color, peel off, be infected with the phenomenons such as spot and lose original decorative effect, thereby affect the attractive in appearance of buildings appearance.Therefore utilize the photocatalysis of nano material to improve the weathering resistance of exterior coating product and stain resistant performance for extending exterior coating important in inhibiting in work-ing life.
Summary of the invention the object of this invention is to provide a kind of Clear paint by photochemical catalysis with self-cleaning function, and this exterior coating is good weather-proof, contamination resistance not only, but also has Superhydrophilic, can play " automatically cleaning " effect.
Concrete component and the part by weight of a kind of photochemical catalysis ultra-hydrophilic transparent self-cleaning coating of the present invention are: water: 20-25%; Multifunctional assistant: 0.1-0.2%; Wetting agent: 0.05-0.1%; Dispersion agent: 0.1-0.3%; Defoamer: 0.1-0.3%; Emulsion: 70-75%; Automatically cleaning photocatalyst: 0.1-0.2%; Texanol:1-2%; Sanitas: 0.1-0.2%; Thickening material: 0.6-0.9%.
In general, the life-span of exterior coating is decided by weathering resistance and the stain resistant performance of coating.Along with being on the rise of air environmental pollution, and the outer wall coating being exposed under nature complex environment is just standing acid test further, and especially, for the Highrise buildings in city, floor is higher, and the cost that whitewashes, cleans body of wall is just higher.The use of nano combined dose in the present invention can be decomposed the pollutent of body of wall under the irradiation of sunlight, utilizes its super hydrophilic property to produce " automatically cleaning " function, makes coating have good weathering resistance and contamination resistance.
The emulsion that the present invention uses is the synthetic copolymer emulsion of organosilicon, in order to give the basic physical properties of filming, there is again the performances such as excellent stain resistant, film coated surface is designed to wetting ability, make emulsion particle surface have effective hydrophilic functional group, thereby the water tolerance of making and wettability while also deposit, and sticking power is good.
The automatically cleaning photocatalyst that the present invention uses is nano titanium oxide (TiO2), and it is little that it has diameter of particle, the feature that specific surface area is large.Under the irradiation of sunlight, there is nano titanium oxide (TiO2) light-catalyzed reaction occurs, the highly active oxidation-reduction electronics producing can produce and decompose the parade pollutent of body of wall, and " super hydrophilic " effect producing under photoinduction is more easily washed totally the sexual pollutent on outer wall coating with rainwater, thereby make to film generation " automatically cleaning " effect, greatly improve weathering resistance and the contamination resistance of exterior coating product, extended the work-ing life of coating.
The dispersion agent that the present invention uses is low-molecular-weight polypropylene amine acid salt dispersion agent, can significantly improve concentration and the stability thereof of color stuffing dispersion pulp, by this dispersion agent, can surround a layer charge at color stuffing particle surface, make repulsion mutually between particle, thereby reach the effect of stable slurry.
Thickening material used in the present invention mainly contains newton-type nonionic polyoxyalkylene class rheology modifier and alkali swelling class thickening material.
Production technique of the present invention is mixed the component of above-mentioned weight ratio at normal temperatures, under stirring at low speed, add part water, multifunctional assistant, wetting agent, dispersion agent, early stage defoamer, propylene glycol, automatically cleaning photocatalyst to mix, stirring at low speed adds emulsion, Texanol, later stage defoamer, sanitas, thickening material, excess water, meet the requirements of after viscosity, stirring at low speed 10min again, then through checking, filter, weigh packing.
Below embodiment, be one embodiment of the present of invention.
Composition (weight percent) and the production technique of a kind of photochemical catalysis ultra-hydrophilic transparent self-cleaning coating of the present invention are: the stirring at low speed stage adds the deionized water of 10.3 parts according to order, the multifunctional assistant AMP-95 of 0.15 part, the wetting agent X405 of 0.05 part, 0.3 part of poly amic acid dipersant PR03, the defoamer NXZ of 0.15 part, 0.2 part of automatically cleaning photocatalyst stirs, then under stirring at low speed, add successively 0.2 part of automatically cleaning photocatalyst, the benzene emulsion 998A of 72 parts, the Texanol of 2 parts, the defoamer NXZ of 0.15 part, the sanitas MV of 0.1 part, the newton-type nonionic polyoxyalkylene class rheology modifier thickening material DSX2000 of 0.2 part and 0.2 part of alkali swelling thickening material TT935, the deionized water and stirring of 14 parts is even, stirring at low speed 10min again, again through check, filter, the packing of weighing.
A kind of its indices of photochemical catalysis ultra-hydrophilic transparent self-cleaning coating of making according to the present invention all reaches GB/T9755-2001 about the requirement of exterior wall coating material of synthetic resin emulsion defined; product has good weather-proof, stain resistant, water-fast, alkaline resistance properties; and photocatalysis and photoinduction effect due to nano titanium oxide; make product there is " automatically cleaning " function; the oiliness pollutent being decomposed is easier by rain drop erosion; thereby protected outer wall decorative effect; extend exterior wall work-ing life, saved cost.This product is widely used in the coating of exterior coating, is especially applied on external wall elastic plucking, elasticity cover midway etc., and customer response is respond well.
Claims (4)
1. concrete component and the part by weight of a kind of photochemical catalysis ultra-hydrophilic transparent self-cleaning coating of the present invention are: water: 20-25%; Multifunctional assistant: 0.1-0.2%; Wetting agent: 0.05-0.1%; Dispersion agent: 0.1-0.3%; Defoamer: 0.1-0.3%; Emulsion: 70-75%; Automatically cleaning photocatalyst: 0.1-0.2%; Texanol:1-2%; Sanitas: 0.1-0.2%; Thickening material: 0.6-0.9%.
2. a kind of photochemical catalysis ultra-hydrophilic transparent self-cleaning coating according to claim 1, it is characterized in that said nano combined dose, under the irradiation of sunlight, can decompose the pollutent of body of wall, utilize its super hydrophilic property to produce " automatically cleaning " function, make coating there is good weathering resistance and contamination resistance.
3. a kind of photochemical catalysis ultra-hydrophilic transparent self-cleaning coating according to claim 1, it is characterized in that said automatically cleaning photocatalyst is nano titanium oxide (TiO2), it is little that it has diameter of particle, " super hydrophilic " effect producing under photoinduction generation " automatically cleaning " effect that makes to film.
4. a kind of photochemical catalysis ultra-hydrophilic transparent self-cleaning coating according to claim 1, is characterized in that said emulsion is the synthetic copolymer emulsion of organosilicon, has the performances such as excellent stain resistant, and water tolerance and wettability while also deposit, and sticking power is good.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310661196.4A CN103666246A (en) | 2013-12-06 | 2013-12-06 | Photocatalytic super-hydrophilic transparent self-cleaning paint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201310661196.4A CN103666246A (en) | 2013-12-06 | 2013-12-06 | Photocatalytic super-hydrophilic transparent self-cleaning paint |
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| CN103666246A true CN103666246A (en) | 2014-03-26 |
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| CN201310661196.4A Pending CN103666246A (en) | 2013-12-06 | 2013-12-06 | Photocatalytic super-hydrophilic transparent self-cleaning paint |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104017398A (en) * | 2014-06-09 | 2014-09-03 | 复旦大学 | Preparation method of TiO2-based aqueous self-cleaning coatings |
| CN105419445A (en) * | 2015-12-29 | 2016-03-23 | 新疆屯河涂料有限公司 | Automatic cleaning finish for exterior walls, and preparation method thereof |
| CN106675114A (en) * | 2015-11-06 | 2017-05-17 | 上海永玺环境科技有限公司 | Self-cleaning sound barrier board |
| CN112662295A (en) * | 2020-12-18 | 2021-04-16 | 北京新桥技术发展有限公司 | Preparation method and application of self-cleaning composite coating material |
| CN112795255A (en) * | 2020-12-30 | 2021-05-14 | 华能江阴燃机热电有限责任公司 | Nanoscale water-based heavy-duty self-cleaning coating |
| CN115368771A (en) * | 2022-09-22 | 2022-11-22 | 浙江和谐光催化科技有限公司 | Preparation process of environment-friendly rheological additive material with photocatalysis cleaning function |
-
2013
- 2013-12-06 CN CN201310661196.4A patent/CN103666246A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104017398A (en) * | 2014-06-09 | 2014-09-03 | 复旦大学 | Preparation method of TiO2-based aqueous self-cleaning coatings |
| CN106675114A (en) * | 2015-11-06 | 2017-05-17 | 上海永玺环境科技有限公司 | Self-cleaning sound barrier board |
| CN105419445A (en) * | 2015-12-29 | 2016-03-23 | 新疆屯河涂料有限公司 | Automatic cleaning finish for exterior walls, and preparation method thereof |
| CN112662295A (en) * | 2020-12-18 | 2021-04-16 | 北京新桥技术发展有限公司 | Preparation method and application of self-cleaning composite coating material |
| CN112795255A (en) * | 2020-12-30 | 2021-05-14 | 华能江阴燃机热电有限责任公司 | Nanoscale water-based heavy-duty self-cleaning coating |
| CN115368771A (en) * | 2022-09-22 | 2022-11-22 | 浙江和谐光催化科技有限公司 | Preparation process of environment-friendly rheological additive material with photocatalysis cleaning function |
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140326 |