Polyhydroxy polysiloxane and wear-resisting super-hydrophobic coating and preparation method

A technology of polyhydroxypolysiloxane and superhydrophobic coating, which is applied in coatings, polyurea/polyurethane coatings, anti-corrosion coatings, etc., can solve problems such as low surface energy, and achieve low surface tension, small size, and good durability. grinding effect
CN105646884AActive Publication Date: 2016-06-08国科广化(南雄)新材料研究院有限公司 +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
国科广化(南雄)新材料研究院有限公司
Publication Date
2016-06-08

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Abstract

The invention discloses a polyhydroxy polysiloxane and wear-resisting super-hydrophobic coating and a preparation method, and belongs to the field of super-amphiphobic materials. A structural formula of polyhydroxy polysiloxane is shown in the following formula of the description. According to the method, an active hydroxyl group is introduced onto a flexible silica main chain through over protection and deprotection processes, polymethylsiloxane with active hydroxyl group on a side chain is compounded, then the polymethylsiloxane with an active hydroxyl group on a side chain is cross-linked with diisocyanate to form a three dimensional net structure, methyl is orderly and densely arranged on the surface of a substrate, the methyl is very small in polarity and volume, and low in surface tension, thus, a compact low surface energy layer is formed, and a wear-resisting super-hydrophobic material is formed by utilizing cohesive action of isocyanate.
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Description

technical field

[0001] The invention belongs to the field of superamphiphobic materials, in particular to a polyhydroxy polysiloxane, a wear-resistant superhydrophobic coating and a preparation method. Background technique

[0002] The lotus leaf effect is a strange effect that plants have evolved to adapt to nature in the process of evolution. The most important parameter to characterize the surface wetting behavior is the contact angle. According to the range of the contact angle, the surface can be divided into superhydrophilic surface, superhydrophobic surface, superoleophilic surface and superoleophobic surface. Among them, if the static contact angle of the surface to water is less than 10°, it is called a superhydrophilic surface, and if the surface has a contact angle greater than 150°, it is called a superhydrophobic surface. A surface can be considered a superoleophobic surface if it has a contact angle of greater than 150° for oil. If the surface has both superh...

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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