Fluorocarbon paint high in fluorine content and preparation method thereof

A technology of fluorine content and fluorocarbon paint, applied in the direction of coating, etc., can solve the problem of low fluorine content of fluorocarbon, and achieve the effect of improving resin fluorine content, excellent weather resistance, and excellent anti-fouling property

Inactive Publication Date: 2016-04-06
祁守岗 +9
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Only a certain fluorine content can guarantee the weather resistance of fluorocarbon paint. At present, the mainstream FEVE fluorine resin in the market has a theoretical fluorine content of 23%, and the fluorine content of high-end products is generally 25%. Considering the preparation process of fluorine paint Among them, especially in the preparation process of paints, many additives are added, so the fluorine content of fluorocarbon paints on the market is lower. The Ministry of Railways TB / T1527 standard and Japan's requirements for fluorine carbon paints are 15%, the HG / T3792 standard stipulates a fluorine content index of 18%, and the high-end fluorocarbon paints on the market generally can only reach 20% fluorine content

Method used

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  • Fluorocarbon paint high in fluorine content and preparation method thereof
  • Fluorocarbon paint high in fluorine content and preparation method thereof
  • Fluorocarbon paint high in fluorine content and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] According to the following ratio of mass parts:

[0028]

[0029] a. After mixing and stirring pentafluoroethyl acrylate and acrylic acid in an anhydrous container, add sodium fluoride to the system, and stir at a speed of 300 r / min;

[0030] b. Add an emulsifier to the mixture obtained in a, and control the temperature at 50° C. at a speed of 800 r / min, and stir for 16 hours to obtain a fluoropolymer seed resin;

[0031] c. Add preservatives, thickeners, ethylene glycol, and pigments to the fluoropolymer seed resin, and stir evenly at 800r / min;

[0032] d. Add surfactant and water to the system, stir until uniform emulsion, add talc powder, adjust the rotation speed to 1500r / min and stir until the fineness is less than 100um to obtain fluorocarbon paint 1-1.

Embodiment 2

[0034] According to the following ratio of mass parts:

[0035]

[0036]

[0037] a. After mixing pentafluoroethyl methacrylate vinyl ether evenly in an anhydrous container, add silver fluoride to the system, and stir evenly at a speed of 400r / min;

[0038] b. Add an emulsifier to the mixture obtained in a, and control the temperature at 40° C. at a speed of 600 r / min, and stir for 14 hours to obtain a fluoropolymer seed resin;

[0039] c. Add preservatives, thickeners, propylene glycol, and pigments to the fluoropolymer seed resin, and stir evenly at a rotating speed of 800r / min;

[0040] d. Add surfactant and water to the system, stir until uniform emulsion, add barium sulfate, adjust the rotation speed to 1300r / min and stir until the fineness is less than 100um to obtain fluorocarbon paint 1-2.

Embodiment 3

[0042] According to the following ratio of mass parts:

[0043]

[0044] a. After mixing trifluoroethyl acrylate and vinyl acetate in an anhydrous container and stirring evenly, add boron trifluoride to the system, and stir evenly at a speed of 200r / min;

[0045] b. Add an emulsifier to the mixture obtained in a, and control the temperature at 90° C. at a speed of 800 r / min, and stir for 10 hours to obtain a fluoropolymer seed resin;

[0046] c. Add preservatives, thickeners, ethylene glycol, and pigments to the fluoropolymer seed resin, and stir evenly at 800r / min;

[0047] d. Add surfactant and water to the system, stir until uniform emulsion, add superfine ground calcium carbonate, adjust the rotation speed to 1500r / min and stir until the fineness is less than 100um, to obtain fluorocarbon paint 1-3.

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Abstract

The invention relates to fluorocarbon paint high in fluorine content and a preparation method thereof. The fluorocarbon paint is prepared from 35-40 parts of fluorine-containing monomers, 15-30 parts of non-fluoric monomers, 3-5 parts of fluorochemicals, 5-25 parts of pigment, 0.2-1 part of preservatives, 1-5 parts of antifreeze agent, 0.5-2 parts of emulgator, 0.2-1 part of thickener, 5-10 parts of auxiliaries, 0.2-1 part of surfactant and 50-80 parts of water. The preparation method of the fluorocarbon paint high in fluorine content includes the steps that the fluorine-containing monomers, the non-fluoric monomers and the fluorochemicals are mixed and polymerized to be mixed and stirred with other ingredients, and accordingly the paint is prepared. The fluorocarbon paint is high in fluorine content and has outstanding performance.

Description

technical field [0001] The invention relates to the field of fluorocarbon coatings, in particular to a fluorocarbon coating with high fluorine content and a preparation method thereof. Background technique [0002] Since Japan Asahi Glass Co., Ltd. introduced fluorocarbon resin (FEVE) synthesized by chlorotrifluoroethylene (CTFE) and alkenyl ether in 1982, fluorocarbon coatings have gradually been recognized by the coatings industry for their excellent performance. In the 1990s in my country, Dalian Zhenbang and Changshu Zhongwu took the lead in developing and industrializing chlorotrifluoroethylene-vinyl acetate copolymer. Since then, fluorocarbon paint has been widely used, which has promoted relevant industry policies and fluorine The development of carbon coating standards has promoted the application of room temperature curing fluorocarbon coatings in the field of high-performance long-term anti-corrosion coatings. [0003] In 2004, my country revised the railway indust...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D133/16C08F220/22C08F220/06C08F216/18C08F218/08C08F216/14
CPCC09D133/16C08F220/22
Inventor 祁守岗高学清孙冲
Owner 祁守岗
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