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Easy-to-clean fluorocarbon paint and preparation method thereof

A fluorocarbon paint, easy-to-clean technology, applied in the direction of coating, can solve the problems of affecting the decorative effect, loss of color, low surface energy, etc., to achieve good gloss and color retention performance, smooth and flat appearance, good easy-to-clean performance Effect

Active Publication Date: 2015-04-29
DONGLAI COATING TECH SHANGHAI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, fluorocarbon resins with low surface energy, silicone-modified acrylic resins or additives containing fluorine and silicon are commonly used at home and abroad to reduce the adhesion of pollutants, mainly using micronization technology, lotus leaf effect, balloon Ceramic theory, self-layering technology, photocatalytic effect and other theories and technologies are used to improve the stain resistance and easy cleaning of the coating film, but some technical difficulties have not been completely overcome, and there are still certain inapplicability and limitations for our country. Commonly used There are still problems with the long-term decorative properties of PVDF and FEVE fluorocarbon coatings. In some occasions, the decorative effect of the coating film will deteriorate in a short period of time, losing the original bright color, turning black and gray, or forming various strips of black. , yellow spots, seriously affect the decorative effect

Method used

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  • Easy-to-clean fluorocarbon paint and preparation method thereof
  • Easy-to-clean fluorocarbon paint and preparation method thereof
  • Easy-to-clean fluorocarbon paint and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] 40g of trifluoroethyl acrylate polymer, 10g of aliphatic polycyanate, 16g of mixed solvent (isophorone, xylene and propylene glycol methyl ether acetate), 30g of pigment, 3g of matting powder (fumed silica), Additives 0.5g (including leveling agent Levaslip 435, defoamer Deform 6600).

[0034] The method for preparing above-mentioned coating comprises the following process steps:

[0035] (1) All fluorocarbon resins 40g, isophorone 5g, xylene 5g and propylene glycol methyl ether acetate 6g are put into the reaction kettle as a mixed solvent according to the formula requirements, and stirred;

[0036] (2) Keep stirring and add 0.2g of leveling agent Levaslip 435 as additive and 30g of iron oxide as pigment into the reaction kettle in turn, and stir for 0.5 to 1 hour;

[0037] (3) pass through the grinder after being mixed uniformly, and the particle size reaches 5 microns;

[0038] (4) Add 0.3g of defoamer Deform 6600 and 3g of matting powder as the remaining additives...

Embodiment 2

[0048] 55g of trifluoroethyl methacrylate polymer, 15g of urea-formaldehyde resin (UF), 10g of mixed solvent, 5g of pigment, 0g of matting powder, and 1g of auxiliary agent.

[0049] Described mixed solvent comprises butyl acetate, cyclohexanone, propylene glycol methyl ether acetate.

[0050] The method for preparing above-mentioned coating comprises the following process steps:

[0051] (1) 45g of fluorocarbon resin, 2g of butyl acetate, 2g of cyclohexanone, and 6g of propylene glycol methyl ether acetate are mixed into the reaction kettle as required by the formula, and stirred;

[0052] (2) Keep stirring and put 0.3g of dispersant Disponer 903, 1g of titanium dioxide, 1g of cyanine blue and 3g of cyanine green into the reaction kettle in turn, and stir for 0.5 to 1 hour;

[0053] (3) pass through the grinder after being mixed uniformly, and the particle size reaches 30 microns;

[0054] (4) Add 0.2g of dispersant Disponer 903 and 10g of fluorocarbon resin as the remaining ...

Embodiment 3

[0059] Pentafluoropropyl acrylate polymer 45g, melamine formaldehyde resin (MF) 10g, mixed solvent 15g, pigment 15g, matting powder 2g, auxiliary agent 0.8g.

[0060] Described mixed solvent comprises cyclohexanone, xylene, propylene glycol methyl ether acetate.

[0061] The method for preparing above-mentioned coating comprises the following process steps:

[0062] (1) Part of the fluorocarbon resin 25g, cyclohexanone 10g, xylene 2g, propylene glycol methyl ether acetate 3g mixed solvent is put into the reactor according to the formula requirements, and stirred;

[0063] (2) Keep stirring and put 0.2g of leveling agent Levaslip 882, 0.2g of defoamer Deform 5500, 0.1g of dispersant Disponer983, and 15g of carbon black into the reaction kettle in turn, and stir for 0.5 to 1 hour;

[0064] (3) pass through the grinder after being mixed evenly, and the particle size reaches 20 microns;

[0065] (4) Add the remaining additives, 0.1g leveling agent Levaslip 882, 0.1g defoamer Def...

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Abstract

The invention relates to easy-to-clean fluorocarbon paint and a preparation method thereof. The fluorocarbon paint comprises the following components in parts by weight: 40-60 parts of fluorocarbon resin, 10-20 parts of crosslinking resin, 5-20 parts of a mixed solvent, 3-30 parts of a pigment, 0-5 parts of extinction powder, 0-1 part of a flatting agent, 0-1 part of a foam killer and 0-1 part of a dispersant. The fluorocarbon resin with low interface energy is mainly adopted for crosslinking and solidifying with the crosslinking resin, and the characteristic that fluorine-containing side chains can be centralized on a coating surface after film forming is utilized to give the role of fluorine atoms into play to the utmost extent, so that the surface performance of a copolymer is effectively changed to form a hydrophobic-oleophobic group, and accordingly, the effects of water resistance, oil repellency, rust prevention and the like are achieved. Compared with the prior art, the fluorocarbon paint provided by the invention is excellent in easy-to-clean performance, the paint film is smooth and even in appearance and sound in color, and the light and color maintenance properties are good.

Description

technical field [0001] The invention relates to a chemical building decorative paint, in particular to an easy-to-clean fluorocarbon paint and a preparation method thereof. Background technique [0002] Fluorocarbon resins are homopolymerized or copolymerized with fluorine-containing olefins, such as tetrafluoroethylene (TFE), chlorotrifluoroethylene (CTFE), vinylidene chloride (VDF), vinyl chloride (VF), etc., as basic units, or with Copolymerization of other monomers, and self-polymerization or copolymerization of monomers containing fluorocarbon chemical bonds on the side chains to obtain polymers with more fluorocarbon bonds (F-C) in the molecular structure. Fluorocarbon coating is a coating with fluorine-containing resin as the main film-forming substance. Its main feature is that the F-C bond contained in the resin has large bond energy and small bond length, and the C-C bond is protected by the steric shielding effect of fluorine atoms. Atoms are not easy to invade, ...

Claims

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Application Information

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IPC IPC(8): C09D133/16C09D7/12
CPCC08L2205/03C09D7/40C09D7/61C09D7/63C09D133/16C08L101/00C08K13/02C08K3/36C08K5/10C08K2003/2265C08L61/24C08K5/101C08K5/07C08K2003/2241C08L61/28C08K3/04C08L77/00
Inventor 朱忠敏李白
Owner DONGLAI COATING TECH SHANGHAI
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