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Coating with long-acting durable super-hydrophobic function

A super-hydrophobic and durable technology, applied in the direction of coating, etc., can solve the problems of low adhesion, low material adhesion, low surface energy, etc., and achieve the effect of strong adhesion and good hydrophobic effect

Active Publication Date: 2019-03-08
中国科学院宁波材料技术与工程研究所湖州新能源产业创新中心
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the need for low surface energy, such fluorine-containing hydrocarbons and long-chain alkanes cannot contain strong polar carboxyl groups, hydroxyl groups, etc., making the material adhesion low
At the same time, the light scattering effect of nanomaterials such as titanium dioxide, aluminum oxide, and silicon dioxide causes superhydrophobic materials to be optically opaque, which affects the large-scale application of hydrophobic technology.
[0003] The patent application number CN201410801766.X proposes a hydrophobic coating, which uses fluorine-containing polymer as the main active material and has good hydrophobic performance. However, the organic polymer film formed by organic resin usually cannot chemically bond with the hydroxyl groups on the glass surface, and the adhesion Low, and the hardness of the film is not high, the life is not long

Method used

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  • Coating with long-acting durable super-hydrophobic function

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Comparison scheme
Effect test

Embodiment 1

[0018] A coating with long-lasting and durable superhydrophobic function, multifunctional fluorine-containing furan derivative, n=1, concentration 0.01%, ammonia solution 0.001%, polyether silicone film-forming aid concentration 5%, obtained by dissolving in water coating.

Embodiment 2

[0020] A coating with long-lasting and durable super-hydrophobic function, multifunctional fluorine-containing furan derivatives, n=2, concentration 5%, ammonia solution 1%, polyether silicone film-forming aid concentration 3%, dissolved in water to obtain coating.

Embodiment 3

[0022] A coating with long-lasting and durable super-hydrophobic function, multifunctional fluorine-containing furan derivative, n=5, concentration 10%, NaOH solution 10%, triton concentration 0.1%, dissolved in water to obtain the coating.

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PUM

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Abstract

The invention relates to a surface hydrophobic agent, in particular to a coating with a long-acting durable super-hydrophobic function. An effective component of the coating with the long-acting durable super-hydrophobic function is a multi-functional group fluorine-containing furan derivative. The structure of the coating is as shown in the specification. The multi-functional group fluorine-containing furan derivative, a pH (potential of hydrogen) value buffer regulator and an auxiliary are mixed and dissolved in solvents according to an appropriate proportion to obtain the stable hydrophobiccoating. The contact angle of the coating can reach 150 degrees or more, and the coating is good in hydrophobic effect, strong in adhesive force and particularly suitable for automotive glass and automotive paint and has super-hydrophobic performance.

Description

technical field [0001] The invention relates to a surface hydrophobic agent, in particular to a coating with a long-lasting and durable superhydrophobic function. Background technique [0002] In nature, lotus leaves, butterfly wings, petals, etc. can be drip-free because the contact angle between water droplets and objects is >150°, forming a super-hydrophobic phenomenon. The core essence is extremely low surface energy and rough micro-nano The structure makes it difficult for water droplets to spread. Although people have been able to prepare a wide variety of superhydrophobic coatings, however, superhydrophobic materials have not been widely promoted at present, which is mainly limited by two reasons: poor adhesion to the substrate and opacity. Common superhydrophobic materials are generally composed of low surface energy materials, such as: fluorine-containing hydrocarbons, long-chain alkanes, etc., which can achieve certain hydrophobic properties; further combined w...

Claims

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Application Information

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IPC IPC(8): C09D183/12C09D7/65C09D7/63
CPCC09D183/12C09D7/63C09D7/65C08L27/12C08K5/1535
Inventor 许炜
Owner 中国科学院宁波材料技术与工程研究所湖州新能源产业创新中心
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