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A kind of preparation method of weather-resistant pearlescent fluororesin coating

A fluororesin and pearlescent technology, applied in the field of coatings, can solve problems such as insufficient gloss and no antibacterial function, and achieve strong photocatalysis, strong adhesion, and wide application range

Active Publication Date: 2015-10-21
江苏悠谷未来科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Most of the fluororesin coatings currently on the market are not glossy enough and do not have antibacterial functions

Method used

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  • A kind of preparation method of weather-resistant pearlescent fluororesin coating

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] A preparation method of a weather-resistant pearlescent fluororesin coating, comprising the steps of:

[0022] Step (1): Dissolving chlorotrifluoroethylene, cyclohexyl acrylate and ethylene trimethoxysilane in a mass ratio of 1:1:0.1 in n-butyl acetate to form a fluoropolymer with a solid content of 50% ;

[0023] Step (2): Weigh 100 parts of fluoropolymer obtained in step (1), 10 parts of isobutyl methacrylate, 6 parts of methyl methacrylate and 5 parts of isobornyl methacrylate, 12 parts of cyclohexyl methacrylate and 4 parts of γ-methacryloxypropyltrimethoxysilane were dissolved in xylene, and stirred at 65°C for 8 hours under the catalysis of azobisisobutyronitrile to obtain fluorine resin;

[0024] Step (3): 100 parts of fluororesin obtained in step (2) in parts by weight, 15 parts of mixed solvent, 0.3 part of dispersant 983 and 0.2 part of 8900-20X anti-settling agent are stirred and dispersed at high speed until mixed Evenly, the stirring speed is 1200~1600 r...

Embodiment 2

[0026] A preparation method of a weather-resistant pearlescent fluororesin coating, comprising the steps of:

[0027] Step (1): Dissolving chlorotrifluoroethylene, cyclohexyl acrylate and ethylene trimethoxysilane in a mass ratio of 1: 1.2: 0.2 in n-butyl acetate to form a fluoropolymer with a solid content of 60% ;

[0028] Step (2): Weigh 120 parts of fluoropolymer obtained in step (1), 12 parts of isobutyl methacrylate, 8 parts of methyl methacrylate and 7 parts of isobornyl methacrylate, Dissolve 16 parts of cyclohexyl methacrylate and 6 parts of γ-methacryloxypropyl trimethoxysilane in xylene, and stir at 75°C for 12 hours under the catalysis of azobisisobutyronitrile to obtain fluorine resin;

[0029] Step (3): 100 parts of fluororesin obtained in step (2) in parts by weight, 22 parts of mixed solvent, 0.6 part of dispersant 983 and 0.5 part of 8900-20X anti-settling agent are stirred and dispersed at high speed until mixed Evenly, the stirring speed is 1200~1600 rpm,...

Embodiment 3

[0031] A preparation method of a weather-resistant pearlescent fluororesin coating, comprising the steps of:

[0032] Step (1): Dissolving chlorotrifluoroethylene, cyclohexyl acrylate and ethylene trimethoxysilane in a mass ratio of 1:1.1:0.15 in n-butyl acetate to form a fluoropolymer with a solid content of 55% ;

[0033] Step (2): Weigh 110 parts of fluoropolymer obtained in step (1), 11 parts of isobutyl methacrylate, 7 parts of methyl methacrylate and 6 parts of isobornyl methacrylate, Dissolve 14 parts of cyclohexyl methacrylate and 5 parts of γ-methacryloxypropyl trimethoxysilane in xylene, and stir at 70°C for 10 h under the catalysis of azobisisobutyronitrile to obtain fluorine resin;

[0034] Step (3): 100 parts of fluororesin obtained in step (2) in parts by weight, 18 parts of mixed solvent, 0.5 part of dispersant 983 and 0.3 part of 8900-20X anti-settling agent are stirred and dispersed at high speed until mixed Evenly, the stirring speed is 1200~1600 rpm, and ...

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Abstract

The invention relates to a preparation method of a weather-resistant pearlescent fluororesin coating. First, chlorotrifluoroethylene, cyclohexyl acrylate and ethylene trimethoxysilane are dissolved in n-butyl acetate to form a fluorine-containing polymer; secondly, the fluorine-containing Polymers, isobutyl methacrylate, methyl methacrylate and isobornyl methacrylate, cyclohexyl methacrylate, γ-methacryloxypropyltrimethoxysilane dissolved in xylene, in Under the catalysis of azobisisobutyronitrile, the fluororesin is obtained; disperse the fluororesin with part of the mixed solvent, dispersant and anti-sedimentation agent again, then add mica titanium pearlescent pigment, nano titanium dioxide and the remaining mixed solvent, and stir until completely After wetting, finally add drier and leveling agent, stir and mix evenly to get weather-resistant pearlescent fluororesin coating. This product has strong adhesion, good high temperature resistance, good weather resistance, and has high pearl luster and metallic flash effect, and can be used for coating outdoor metal surfaces.

Description

technical field [0001] The invention belongs to the technical field of coatings, and in particular relates to a preparation method of a weather-resistant pearlescent fluororesin coating. Background technique [0002] Fluorine resin coating refers to the coating with fluorine resin as the main film-forming substance, also known as fluorocarbon paint, fluorine coating, fluorocarbon coating, etc. Among all kinds of coatings, fluororesin coatings have particularly superior properties, such as weather resistance, heat resistance, low temperature resistance, and chemical resistance, due to the high electronegativity of the introduced fluorine element and the strong bond energy of carbon and fluorine. All are superior, and have unique non-stick and low friction, widely used in construction, chemical industry, electrical and electronic industry, machinery industry, aerospace industry, household goods and other fields. [0003] Most of the fluororesin coatings currently on the marke...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08F265/04C08F220/18C08F230/08C08F214/18C09D151/00C09D5/36C09D5/32C09D5/14
Inventor 张学平朱忠海
Owner 江苏悠谷未来科技有限公司
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