F-Si acrylate copolymer and use method thereof as paint sealant

A silicon acrylate and copolymer technology, which is applied in the field of polymer synthesis, can solve the problems of low surface energy of fluorine-containing films, lower surface energy of coating films, and unsatisfactory problems, so as to improve suspension stability, ultraviolet protection function and Improved washing resistance and shortened drying time

Inactive Publication Date: 2010-12-22
北京奥力助兴石化科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

US4284668 describes that fluorine-modified polymers can improve the heat-resistant and cold-resistant temperature of the car surface sealant, but the formed film is relatively soft, easily scratched and damaged, and a hard protective film needs to be coated on the outer layer of the film; the fluorine-containing film described in US7173778 The film has low surface energy, but it i

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] 1. Preparation of fluorosilicone acrylate copolymer

[0021] 1) Dissolve 0.3% of sodium lauryl sulfate and OP-101.2% in water with 20% of the total monomers, add them to the emulsification kettle, and then add 29% of monomer styrene, 20% of methyl methacrylate, 29% butyl acrylate, 1% acrylic acid, 7.5% trifluoroethyl methacrylate, 6.5% trimethylhydroxysilane, 3% nanomaterials, 1.5% emulsifier and 0.5% initiator. Stir quickly to emulsify evenly. A stable milky white emulsion is obtained for use.

[0022] 2) Deionized water of 110% of the total monomer is added to the reactor, and the temperature is raised to about 40°C under stirring. Take 1 / 9 of the emulsion and put it into the reactor, add 0.5% of the initiator potassium persulfate, and slowly increase the temperature to 65°C to initiate seed polymerization. When the emulsion turns blue and no obvious reflux occurs, start to evenly add the remaining initiator and emulsion, and keep the temperature at about 80°C. Control ...

Embodiment 2

[0027] 1. Preparation of fluorosilicone acrylate copolymer

[0028] 1) Dissolve 0.3% sodium dodecylbenzene sulfonate and OP-101.5% composite emulsifier in 20% of the total monomers in water, add them to the emulsification kettle, and then add a quantitative monomer methyl methacrylate 30 %, methyl acrylate 18%, butyl acrylate 30%, trifluoroethyl acrylate 7.5%, N-methylolacrylamide 2%, trimethylhydroxysilane 5.2%, nanomaterials 3%, emulsifier 1.5% and Initiator 0.5%, stir quickly to make it emulsify evenly, and obtain a stable milky white emulsion for use.

[0029] 2) Add deionized water of 100% of the total monomer amount into the reactor, stir and raise the temperature to about 40°C. Take 1 / 9 of the emulsion and put it into a four-necked bottle, add 1 / 2 of the amount of the initiator potassium persulfate, and slowly increase the temperature to 67°C to initiate seed polymerization. When the emulsion turns blue and no obvious reflux occurs, start to evenly add the remaining initia...

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PUM

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Abstract

The invention discloses an F-Si acrylate copolymer and a use method thereof as a vehicle paint sealant. The copolymer is a free radical polymerization reaction product by initiating the following components in percentage by weight with an initiator under the existence of an emulsifier: 35-55 percent of hard monomer, 20-50 percent of soft monomer, 0.5-5 percent of functional group monomer, 5-15 percent of fluorinated monomer, 3-16 percent of silicone monomer and 2-5 percent of nano material, wherein water is 100-150 percent of the total mount of the monomers, the initiator is 0.4-3 parts, and the emulsifier is 1.2-2 percent. The invention is applied to a vehicle paint face so that the vehicle paint face has the advantages of resisting water, oil, ultraviolet rays, static electricity, stain, washing, and the like and has the excellent self-cleaning function.

Description

Technical field [0001] The invention relates to the field of polymer synthesis. More specifically, it relates to a fluorine-silicon acrylate copolymer and its use method as a car paint surface sealant (also known as car glaze). After the car glaze is applied to the car paint surface, it can make the car paint surface have the advantages of water and oil repellent, anti-ultraviolet, anti-static, stain resistance, washing resistance, etc., and has excellent self-cleaning function. Background technique [0002] With the development of the economy, more and more cars have entered the lives of ordinary people. People are no longer satisfied with the excellent performance of the car, and pay more attention to the appearance of the car and pay attention to the care of the paint. Waxing is the most common way of car paint maintenance, of which carnauba wax is the car wax that many people respect. It can create a rich, warm luster and exude a lovely light fragrance. Car wax composed o...

Claims

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Application Information

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IPC IPC(8): C08F212/08C08F220/18C08F220/14C08F220/06C08F220/22C08F2/44C08F2/24C08F220/58C08K3/36C09G1/16
Inventor 魏黎明解放
Owner 北京奥力助兴石化科技有限公司
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