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Fluorine silicon acrylate copolymer, preparation process thereof and application thereof

A technology of fluorosilicone acrylate and acrylate, which is applied in the field of fluorosilicone acrylate copolymer and its preparation, can solve the problem that the strength and hardness of fluorosilicone acrylate copolymer are not ideal, and reports have not yet been found to limit fluorosilicone acrylate copolymer. Application and other issues, to achieve the effect of simple synthesis method, strong hydrophobicity, good anti-ice and snow performance

Active Publication Date: 2012-02-15
天津渤化讯创科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The strength and hardness of the currently prepared fluorosilicon acrylate copolymers are not ideal, which limits the application of fluorosilicon acrylate copolymers, especially in the preparation of hydrophobic anti-icing and snow coatings, and no relevant reports have been found

Method used

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  • Fluorine silicon acrylate copolymer, preparation process thereof and application thereof
  • Fluorine silicon acrylate copolymer, preparation process thereof and application thereof
  • Fluorine silicon acrylate copolymer, preparation process thereof and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] In reactor (250ml), add 10g methyl isobutyl ketone and 0.05g azobisisobutyronitrile, blow nitrogen, be heated to temperature 60 ℃, drop two kinds of mixed solutions to reactor again, wherein a kind of mixed solution is made of 12g cyclohexyl methacrylate, 9g octyl acrylate, 2g hydroxyethyl methacrylate and 15g methyl isobutyl ketone, another mixed solution consists of 5g methyl isobutyl ketone and 0.05g azobisisobutyronitrile composition, reacted for 3h, then slowly added dropwise the remaining 0.05g of azobisisobutyronitrile, 3g of trifluorooctyl methacrylate and 3g of trifluoroethyl acrylate, 1g of 4-methacryloxybutyl-7 Styryl POSS and the remaining 5 g of methyl isobutyl ketone were reacted for 24 hours, and the temperature was lowered to obtain a translucent emulsified solution.

[0025] The number average molecular weight of the copolymer was measured by GPC-MwA gel chromatography 16000, molecular weight distribution index The contact angle of the copolymer wit...

Embodiment 2

[0027] Add 10 g of xylene and 0.2 g of azobisisobutyronitrile into a 250 mL reactor, blow nitrogen, and heat to 80°C. Then add dropwise a mixed solution consisting of 12g cyclohexyl acrylate, 6g butyl acrylate, 0.72g vinyltriethoxysilane and 5g xylene, and dropwise add a solution consisting of 5g xylene and 0.2g azobisisobutyronitrile The solution. After reacting for 3 hours, 0.2 g of azobisisobutyronitrile, 2.4 g of dodecafluoroheptyl methacrylate and 5 g of xylene were added dropwise. After continuing to react for 24 h, the temperature was lowered to room temperature, and a translucent milky solution was obtained.

[0028] Using GPC-MwA gel chromatograph, the GPC method measures the number average molecular weight of the copolymer molecular weight distribution index The contact angle of the coating film with water was 110°.

Embodiment 3

[0030] Add 30 g of butyl acetate into the reactor (250 ml), blow nitrogen, and heat to 80° C. A solution composed of 12g cyclohexyl methacrylate, 15.6g octadecyl methacrylate, 2.4g undecylenic acid, and 15g methyl isobutyl ketone was added dropwise, while another constant pressure funnel was added dropwise from 15g A solution composed of butyl acetate and 0.3g of dibenzoyl peroxide was heated to 110°C and reacted for about 3 hours. Then the remaining 0.15g of dibenzoyl peroxide, 6g of perfluoroalkylethyl acrylate, and 15g of butyl acetate were slowly added dropwise. After 24 hours of reaction, the temperature was lowered to obtain a translucent emulsified solution. The above-mentioned 10g of fluorosilicone acrylate copolymer was dissolved in a mixture of 65g of ethyl acetate and 25g of toluene at room temperature to prepare a solution, ultrasonically oscillated, coated on a clean glass sheet after dissolution, and dried at room temperature for 24 hours.

[0031] Copolymer num...

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Abstract

The invention discloses a fluorine silicon acrylate copolymer, a preparation process thereof and an application thereof. The fluorine silicon acrylate copolymer is represented by formula 1 shown in the specification, and the preparation process of the copolymer is characterized in that: the fluorine silicon acrylate copolymer is prepared through carrying out a free radical quarternary random copolymerization method on a hard acrylate monomer, a soft acrylate monomer, a functional acrylate monomer containing hydroxyl, carboxyl or siloxane, and caged siloxane with a functional acrylic acid monomer containing fluorine and a functional monomer containing organosilicon in a solvent. The fluorine silicon acrylate copolymer which has the advantages of simple synthetic process, mild and easily controlled reaction condition, convenient industrialization, low surface energy and strong hydrophobicity after the film forming of the copolymer, and certain hardness and strength, can be directly mixed with a solvent and a curing agent to prepare a coating for use without adding inorganic fillers of a reinforcing agent and the like, and allows the prepared coating to have good ice and snow resistant performances.

Description

technical field [0001] The invention relates to a fluorosilicon acrylate copolymer, a preparation method and application thereof, and belongs to the technical field of fluorosilicon acrylate copolymers. Background technique [0002] Acrylic copolymers have excellent light resistance, weather resistance, ultraviolet light resistance, and corrosion resistance. It is a kind of coating that is widely used, but it also has disadvantages such as poor stain resistance, poor weather resistance, and slightly poor mechanical strength and hardness. In recent years, various modifications of acrylate copolymers have been studied. Some people have introduced fluorine-containing groups or organosilicon groups into acrylate polymers. The introduction of fluorine-containing groups can greatly reduce acrylate copolymerization. The surface energy of objects (Zhou Gengbin, Wen Xiufang, Pi Pihui, Cai Zhiqi, Cheng Jiang, Yang Zhuoru, Electroplating and Finishing, 2010, 29(8): 50-53); the introdu...

Claims

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Application Information

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IPC IPC(8): C08F220/18C08F220/28C08F220/22C08F230/08C08F220/04C08F216/08C09D133/10C09D133/08C09D5/00
Inventor 袁晓燕李辉赵蕴慧周建伟
Owner 天津渤化讯创科技有限公司
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