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A kind of preparation method of organosilicon fluororesin

A technology of fluororesin and organosilicon, which is applied in the field of organosilicon applications, can solve problems such as the preparation method of organosilicon fluororesin, and achieve the effects of low cost, good compatibility and high refractive index

Active Publication Date: 2020-06-09
INST OF APPLIED CHEM JIANGXI ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But there is no report on the preparation method of organosilicon fluororesin

Method used

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  • A kind of preparation method of organosilicon fluororesin

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] Add 100g of methyl vinyl silicone resin with a vinyl content of 2% and a viscosity of 8000cs, 100g of toluene and 0.1g of azobisisobutyronitrile into the reactor, stir well and add 20g of styrene and 50g of trifluoroacrylic acid dropwise After the ethyl ester mixture was added dropwise, the temperature was raised to 70°C, reacted for 8 hours, cooled to room temperature, filtered, and the toluene was distilled off under reduced pressure to obtain an organosilicon fluororesin.

Embodiment 2

[0017] Add 100g of phenylvinyl silicone resin with a vinyl content of 10% and a viscosity of 1000cs, 1000g of acetone and 0.5g of azobisisoheptanonitrile into the reactor, stir well and add 100g of styrene and 100g of trifluoropropylene dropwise After the dropwise addition, the temperature of the mixture was raised to 75° C., reacted for 6 hours, cooled to room temperature, filtered, and acetone was distilled off under reduced pressure to obtain an organosilicone fluororesin.

Embodiment 3

[0019] Add 100g of methyl vinyl silicone resin with a vinyl content of 2% and a viscosity of 8000cs, 500g of xylene and 0.5g of azobisisobutyronitrile into the reactor, stir well and then add dropwise 50g of styrene and 100g of methyl After the trifluoroethyl acrylate mixture was added dropwise, the temperature was raised to 70°C, reacted for 6 hours, cooled to room temperature, filtered, and xylene was distilled off under reduced pressure to obtain an organosilicon fluororesin.

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Abstract

The invention relates to a preparation method of organic silicon fluorine resin. The method comprises the following steps: vinyl silicon resin, a solvent and an initiator are added to a reactor and evenly stirred, a mixture of styrene and fluorine-containing vinyl monomers is added dropwise, the temperature is raised to 70-75 DEG C for reaction for 6-8 h after addition, a product is cooled to theroom temperature, filtering is performed, vacuum distillation is performed to remove a solvent, and organic silicon fluorine resin is obtained. The preparation method has simple process, mild conditions and large polymer relative molecular weight. By means of polymerization grafting reaction of the solution, the prepared material has lower surface energy and improved elasticity, refractive index and adhesive force on the premise that excellent performance of organic silicon resin is not changed, and the prepared material can be applied to antifouling paint, waterproofing agents and packaging material products, and has wide market prospect.

Description

technical field [0001] The invention relates to a preparation method of an organosilicon fluorine resin, and also relates to an application of an organosilicon fluorine resin, which belongs to the technical field of organosilicon applications. Background technique [0002] Silicone resin has many excellent properties due to its special structure, such as high and low temperature resistance, water repellency, air permeability, and good flexibility, but its mechanical properties are poor and it is not resistant to organic solvents; fluorocarbon resin has excellent performance and fluorine-containing side groups It can improve the solvent resistance of the material and improve the surface performance, but it is expensive, and the fluorosilicone resin with more excellent performance can be obtained by using the advantages of both. However, in most literature reports, there are mainly two methods for the synthesis of fluorosilicone polymers, one is to graft polysiloxane macromono...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08F283/12C08F212/08C08F220/24C08F212/14
CPCC08F283/124C08F220/24C08F212/08C08F212/14
Inventor 游胜勇李韦伟李玲董晓娜邹吉勇谌开红
Owner INST OF APPLIED CHEM JIANGXI ACAD OF SCI