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Copolymerization fluorosilicone grease composition

A composition and copolymerization technology, applied in the field of polymer materials, can solve the problems of cost reduction, incompatibility of liquid fluorosilicone rubber and linear organosiloxane, etc., and achieve the goal of reducing cost, increasing service life and improving compatibility Effect

Inactive Publication Date: 2018-08-07
长春物恒新技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a copolyfluorosilicone grease composition for the deficiencies of existing products and actual application requirements, using a mixture of liquid copolyfluorosilicone rubber and linear organosiloxane as the base oil, and modifying the gas phase method White carbon black is used as a thickener, which not only solves the problem of incompatibility between liquid fluorosilicone rubber and linear organosiloxane, but also greatly reduces the cost

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0009] The first step: Add 5 kg of fumed silica with a specific surface area of ​​180m2 / g into a double planetary stirring tank, add 0.3 kg of D3F, heat to 135°C and stir for 4h, 30~50r / min, and cool to room temperature to prepare Modified silica thickener.

[0010] Step 2: Take 10 kg of hydroxyl-terminated liquid fluorosilicone rubber with a viscosity of 5000cP (produced by Changchun Xilante New Material Co., Ltd., the brand is FS-50H), and 40 kg of methyl-terminated liquid fluorosilicone rubber with a viscosity of 5000cP (manufactured by Changchun Xilante New Material Co., Ltd., the brand is FS-50C) and 50 kg of 107 glue with a viscosity of 1000cP are added to the double planetary stirring tank. After fully stirring, add 0.05 kg of A-151, heat up to 90 ° C and stir for 1 hour , the stirring speed is 30~50r / min, and the base oil is obtained by cooling to room temperature.

[0011] The third step is to add the modified white carbon black thickener to the base oil, heat to 90°...

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Abstract

The invention relates to a copolymerization fluorosilicone grease composition which is prepared by taking a mixture of liquid copolymerization fluorosilicone rubber, linear organic siloxane and a silane coupling agent as base oil and modified fumed silica as a thickening agent, and has the characteristics of lubricating oil resistance, solvent resistance, low cost, and long service life.

Description

technical field [0001] The invention belongs to the technical field of polymer materials, and in particular relates to a copolyfluorosilicone grease composition using liquid copolyfluorosilicone rubber as base oil. technical background [0002] Silicone grease is a fat-like material containing silicone oil, usually based on silicone oil, adding thickeners, structural stabilizers, modifiers and other additives, mixed and ground, and has been widely used in almost all fields of industrial engineering applications. According to different purposes, it is divided into vacuum silicone grease, thermal conductive silicone grease, lubricating silicone grease, sealing silicone grease, etc. In order to improve the oil resistance, solvent resistance and water resistance of silicone grease, a kind of fluorosilicone grease with organosiloxane whose side chain is fluorine-containing group as base oil has appeared in recent years. Compared with the traditional silicone grease with linear ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L83/08C08L83/04C08K9/06C08K3/36
CPCC08K2201/006C08L83/08C08L83/04C08K9/06C08K3/36
Inventor 李彦栗筝李沛霖李长华马仁宏
Owner 长春物恒新技术有限公司
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