Super-biparental self-cleaning coating material and preparation method thereof

A self-cleaning coating and self-cleaning technology, applied in the direction of coating, can solve the problems of easy chalking of self-cleaning coatings, low self-cleaning efficiency of coatings, shortened service life of coatings, etc., and achieve outstanding self-cleaning characteristics , The effect of no loss of mechanical properties and good weather resistance of the coating
CN101724342BActive Publication Date: 2012-09-05FUDAN UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
FUDAN UNIV
Publication Date
2012-09-05

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Abstract

The invention belongs to the technical field of chemical materials, and in particular discloses a super-biparental self-cleaning coating material and a preparation method thereof. The coating material of the invention consists of nano TiO2 particles and organic-inorganic hybridized matrix and obtains super-biparental self-cleaning property through sunlight irradiation, wherein the content of the nano TiO2 particles is 0.5 to 10 percent, and the organic-inorganic hybridized matrix is formed by crosslinking and curing siloxane oligomer (A), phenylpropyl oligomer (B) with alkoxyl silicon group and amino silane (C) at the room temperature. The specific preparation method comprises the following steps: firstly preparing slurry from the nano TiO2 particles, then mixing the slurry, the components A and B, organic diluent and the like, adding C into the mixture, stirring the mixture evenly, then coating the mixture on the surface of a base material, drying the mixture at the room temperature,and irradiating the mixture for a period of time by sunlight to form the coating material with required properties. The coating material is suitable for large-area construction, has good weather resistance and remarkable self-cleaning property, and can be used as a self-cleaning coating on the surfaces of a building external wall, a bridge, an oil field and yard mechanical equipment, a guardrail,a glass curtain wall and the like.
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Description

technical field

[0001] The invention belongs to the technical field of chemical materials, and relates to a super amphiphilic (super hydrophilic, super lipophilic) self-cleaning coating material suitable for outdoor use and a preparation method thereof. Background technique

[0002] In recent years, self-cleaning coatings have received extensive attention. Currently, two types of self-cleaning coatings have been developed based on different self-cleaning principles. One is a super-hydrophobic (water contact angle > 150°) self-cleaning coating, which rolls away dust through water droplets to achieve a self-cleaning function similar to that of lotus leaves. However, there are many kinds of pollutants in the actual air environment, including hydrophilic dust pollutants, lipophilic organic pollutants, solid pollutants, liquid pollutants, and a mixture of various pollutants. , the existing super-hydrophobic coating cannot effectively remove all pollutants with different char...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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