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Organic silicon-fluorine modified acrylic resin powder coating and preparation method thereof

A technology of fluorine-modified acrylic and resin powder, which is applied in powder coatings, anti-fouling/underwater coatings, coatings, etc. It can solve the problems of consuming a lot of manpower and material resources, destroying the coating structure, and affecting the service life. Fouling, ensure mechanical properties, increase the effect of hydrophobicity

Inactive Publication Date: 2020-07-24
郑州知淘信息科技有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, high decorative coatings used outdoors not only have to withstand the damage of weather such as light, cold and heat, wind, frost, snow and rain, but also have to withstand the infection of dust, smog, bacteria, etc., and adhere to the surface of the coating to form dirt or dirt. Spots are not only ugly and affect its decoration, but also more troublesome to clean, requiring a lot of manpower and material resources; if the coating surface is washed or scrubbed frequently, it is easy to scratch and damage the coating structure, affecting its service life

Method used

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  • Organic silicon-fluorine modified acrylic resin powder coating and preparation method thereof
  • Organic silicon-fluorine modified acrylic resin powder coating and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0031] The organosilicon fluorine modified acrylic resin powder coating of the present embodiment is made up of the following components by weight: 100 parts of organosilicon fluorine modified epoxy acrylic resin, 25 parts of dodecanedioic acid, 1.0 parts of leveling agent, 1.0 parts of composite antioxidant, 1.5 parts of ultraviolet absorber, 0.5 parts of benzoin, 30 parts of pigments and fillers;

[0032] The organosilicon-fluorine modified epoxy acrylic resin is mainly prepared by solution polymerization of the following monomers in mass percentage: 8% methacryloxypropyltrimethoxysilane, 2% dodecafluoroheptyl methacrylate, 52% methyl methacrylate, 10% n-butyl acrylate, 30% glycidyl methacrylate; this solution polymerization is toluene as solvent, benzoyl peroxide as initiator, solvent (total consumption) and polymerization unit The mass ratio of monomer (total mass) is 1:1; the amount of initiator is 2.9% of the total mass of polymerized monomers.

[0033] The preparation ...

Embodiment 2

[0037] The organosilicon fluorine modified acrylic resin powder coating of the present embodiment is made up of the following components by weight: 100 parts of organosilicon fluorine modified epoxy acrylic resin, 25 parts of dodecanedioic acid, 0.8 parts of leveling agent, 1.2 parts of composite antioxidant, 1.3 parts of ultraviolet absorber, 0.7 parts of benzoin, 30 parts of pigments and fillers;

[0038] The organosilicon-fluorine modified epoxy acrylic resin is mainly prepared by solution polymerization of the following monomers in mass percentage: 8.3% of methacryloxypropyltrimethoxysilane, 1.7% of dodecafluoroheptyl methacrylate, 52% of methyl methacrylate, 8% of n-butyl acrylate, 30% of glycidyl methacrylate; this solution polymerization takes toluene as solvent and benzoyl peroxide as initiator, solvent (total consumption) and polymerization unit The mass ratio of the monomer (total mass) is 1.1:1; the amount of the initiator is 3.0% of the total mass of the polymerize...

Embodiment 3

[0043] The organosilicon fluorine modified acrylic resin powder coating of the present embodiment is made up of the following components in parts by weight: 100 parts of organosilicon fluorine modified epoxy acrylic resin, 25 parts of dodecanedioic acid, 0.5 parts of leveling agent, 1.5 parts of composite antioxidant, 1.0 parts of ultraviolet absorber, 1.0 parts of benzoin, 30 parts of pigments and fillers;

[0044] The organosilicon-fluorine modified epoxy acrylic resin is mainly prepared by solution polymerization of the following monomers in mass percentage: 8.5% of methacryloxypropyltrimethoxysilane, 1.5% of dodecafluoroheptyl methacrylate, Methyl methacrylate 51%, n-butyl acrylate 9%, glycidyl methacrylate 31%; This solution polymerization is to take toluene as solvent, benzoyl peroxide as initiator, solvent (total consumption) and polymerization unit The mass ratio of monomer (total mass) is 1.2:1; the amount of initiator is 3.1% of the total mass of polymerized monomers...

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Abstract

The invention relates to an organic silicon-fluorine modified acrylic resin powder coating and a preparation method thereof. The powder coating is mainly prepared from the following components in parts by weight: 100 parts of organic silicon-fluorine modified epoxy acrylic resin, 20-30 parts of dodecanedioic acid, 0.5-1.0 parts of a leveling agent, 1.0-1.5 parts of a compound antioxidant, 1.0-1.5parts of an ultraviolet light absorber, 0.5-1.0 parts of benzoin and 0-50 parts of pigments and fillers, wherein the organic silicon-fluorine modified epoxy acrylic resin is mainly prepared from methacryloyloxypropyltrimethoxysilane, dodecafluoroheptyl methacrylate, methyl methacrylate, n-butyl acrylate and glycidyl methacrylate through solution polymerization. A coating film formed by the powdercoating is flat, smooth and fine in surface and good in glossiness, decorative property and mechanical property; and the coating film has excellent surface performance, good hydrophobicity, antifouling property and self-cleaning property, and antifouling property has the characteristics of weather resistance and long-acting effect.

Description

technical field [0001] The invention belongs to the technical field of acrylic resin powder coatings, and in particular relates to an organosilicon-fluorine modified acrylic resin powder coating and a preparation method thereof. Background technique [0002] Powder coating is a solid powder synthetic resin coating composed of solid resin, pigments, fillers and additives; it is prepared by melting and extruding and tableting after mixing the components, cooling, pulverizing, and grading and screening. Different from liquid coatings such as traditional solvent-based and water-based coatings, it exists, is stored and applied in the form of solid powder, and is not dispersed in organic solvents or water during coating, but dispersed in the air for construction. Powder coating has many advantages: no solvent, no emission of volatile organic compounds during production and construction, reducing environmental pollution; electrostatic spraying and other coating methods are used, th...

Claims

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Application Information

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IPC IPC(8): C09D133/12C09D5/03C09D5/16C08F220/14C08F220/32C08F220/18C08F220/24C08F230/08
CPCC08F220/14C09D5/03C09D5/1668C09D143/04C08K13/02C08K5/092
Inventor 卢俊杰
Owner 郑州知淘信息科技有限责任公司