Fluorine-containing bi-functional microspheres and application thereof

A functional, microsphere technology, used in coatings, special surfaces, devices for coating liquids on surfaces, etc., can solve problems such as no one reported, and achieve the advantages of not easy to fall off and deformation, accurate performance parameters, and improved stability. Effect
CN102304204BInactive Publication Date: 2014-09-10GUANGZHOU CHEM CO LTD CHINESE ACADEMY OF SCI
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
GUANGZHOU CHEM CO LTD CHINESE ACADEMY OF SCI
Publication Date
2014-09-10
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a fluorine-containing bifunctional microsphere and an application thereof. The fluorine-containing bifunctional microsphere has a structure as shown in formula (I): wherein, B is a cross-linked polymer microsphere, silica microsphere, aluminum oxide particle or ferric oxide particle; g Indicates grafting; FL is a structural unit containing fluorine; G is a structural unit containing hydroxyl, amine, carboxyl or epoxy; A is a structural unit containing hydroxyl, amine, carboxyl or epoxy; E1 and E2 is hydrogen, halogen or mercapto; x is 0 or 1; y is 0 or 1; m is a natural number ≥ 0, and n is a natural number ≥ 0. The fluorine-containing bifunctional microspheres can be used to modify the surface of materials to prepare hydrophobic and oleophobic coatings. The present invention retains a certain amount of hydroxyl and carboxyl groups in the process of fluorination modification of the microspheres, and fixes the microspheres on the surface of the material by using the covalent bond between the residual hydroxyl carboxyl groups and the adhesive, thereby improving the stability of the coating , is that the coating is not easy to fall off and deform.
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Description

technical field

[0001] The invention belongs to the field of organic materials, and in particular relates to a fluorine-containing bifunctional microsphere and its application. Background technique

[0002] A super-amphiphobic surface refers to a surface on which the contact angles of water droplets and oil droplets are greater than 150°. When a droplet slides on the surface, the inclination angle of the surface should be less than 10°. Since the droplets can automatically agglomerate into spherical shapes on its surface and slide easily, such materials have good self-cleaning properties.

[0003] There are many hydrophobic surfaces in nature, such as the surface of lotus leaves and the feet of water striders. Through the study of superhydrophobic materials in nature, it is found that the surfaces of these materials are composed of compounds with very low surface energy, and the surfaces of these materials have high roughness, and some even have multi-level rough surfaces. ...

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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