Silicon/fluoroether/fluorosilicone composite rubber material and preparation method thereof

A technology of composite rubber and fluorosilicone rubber, which is applied in the field of silicon/fluoroether/fluorosilicone composite rubber materials and its preparation, to achieve the effects of simple production process, wide range of industrial applications, and improved performance

Inactive Publication Date: 2018-03-23
张文平
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

CN106009424A and CN105860374A also disclose different modified fluoroether rubbers, but in general, their performance needs to be further improved to meet the application requirements of different environmental conditions

Method used

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  • Silicon/fluoroether/fluorosilicone composite rubber material and preparation method thereof
  • Silicon/fluoroether/fluorosilicone composite rubber material and preparation method thereof
  • Silicon/fluoroether/fluorosilicone composite rubber material and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] The preparation method of the graphene-modified silicone rubber containing fluorine ionic liquid modification, comprises the steps:

[0038] (1) Mix 1 g of fluorine-containing ionic liquid 1-aminopropyl-3-methylimidazole trifluoromethanesulfonimide salt, 2 g of graphite oxide, and 100 mg of catalyst p-dimethylaminopyridine in 200 mL of ethanol, and ultrasonically treat in a water bath for 3 h After the graphite oxide is uniformly dispersed, react at 50°C for 16 hours in a nitrogen atmosphere to obtain fluorine-containing ionic liquid grafted graphite oxide. The reaction product is purified by centrifugal washing to remove unreacted ionic liquid and catalyst, and the product is vacuum-dried;

[0039] (2) Weighing 2 g of graphite oxide grafted in step (1) and placing it in a tongs pot, and heat-treating it in an oven at 250° C. for 2 hours to obtain a fluffy flocculent ionic liquid-modified redox functional graphene product;

[0040] (3) Mix 2 g of fluorine-containing ion...

Embodiment 2

[0052] A preparation method of silicon / fluoroether / fluorosilicone composite rubber material, comprising the steps of:

[0053] (1) Blend 20 parts of silicone rubber, 65 parts of fluoroether rubber, and 50 parts of fluorosilicone rubber on the open mill, and then put them into the internal mixer, and then add 12 parts of nano-zinc oxide and 12 parts of modified montmorillonite 8 parts of calcium stearate, 10 parts of white carbon black, and 8 parts of anti-aging agent were mixed for 45 minutes at a temperature of 70 ° C, and left to stand for 8 hours to obtain the compounded compound A;

[0054] (2) Add the above-mentioned mixed rubber material A to the open-training machine, then add 16 parts of 2-mercaptobenzothiazole and 6 parts of accelerator TMTD, and shape it after 10 minutes of kneading, and let it stand for 16 hours to obtain the molding rubber material B;

[0055] (3) Put the molding compound B into the mold, place it on a flat vulcanizing machine for the first vulcani...

Embodiment 3

[0058] A preparation method of silicon / fluoroether / fluorosilicone composite rubber material, comprising the steps of:

[0059] (1) After blending 25 parts of silicone rubber, 105 parts of fluoroether rubber, and 70 parts of fluorosilicone rubber on the open mill, they were put into the internal mixer, and then 15 parts of nano-zinc oxide and 15 parts of modified montmorillonite were added. part, 12 parts of calcium stearate, 12 parts of white carbon black, and 10 parts of anti-aging agent were mixed at a temperature of 70°C for 45 minutes, and left to stand for 8 hours to obtain the compounded compound A;

[0060] (2) Add the above-mentioned mixed rubber material A to the open-training machine, then add 16 parts of 2-mercaptobenzothiazole and 6 parts of accelerator TMTD, and shape it after 10 minutes of kneading, and let it stand for 16 hours to obtain the molding rubber material B;

[0061] (3) Put the molding compound B into the mold, place it on a flat vulcanizing machine f...

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Abstract

The invention provides a silicon/fluoroether/fluorosilicone composite rubber material. The silicon/fluoroether/fluorosilicone composite rubber material is formed by compounding silicon rubber, fluoroether rubber and fluorosilicone rubber according to a mass ratio 1:(2-5):(2-4), wherein the silicon rubber is fluorine-containing ionic liquid-modified graphene-modified silicone rubber, the fluoroether rubber is fluorosilane-modified graphene-filled fluoroether rubber, and the fluorosilicone rubber is hydroxyethyl methacrylate-modified graphene-filled fluorosilicone rubber. On one hand, the silicone rubber, the fluoroether rubber and the fluorosilicone rubber with excellent properties are compounded so as to integrate the advantages of individual rubber products and overcome the correspondingdefects of single products; the obtained composite rubber integrates the advantages of high temperature resistance, low temperature resistance, aging resistance and good stability of the silicone rubber, has the characteristics of heat resistance, cold resistance, solvent resistance and chemical resistance of the fluorosilicone rubber, and has the characteristics of high temperature resistance, strongly corrosive medium resistance, superstability of the fluoroether rubber, and is very excellent in properties and wide in industrial application prospect.

Description

technical field [0001] The invention belongs to the technical field of new materials, and in particular relates to a silicon / fluoroether / fluorosilicone composite rubber material and a preparation method thereof. Background technique [0002] Silicone rubber is a semi-organic and semi-inorganic polymer rubber elastomer whose main chain structure is composed of Si-O-repeating units. The bond energy of Si-O is 422.5J / mol, its high and low temperature resistance is very good, and it can generally work for a long time at -70-250°C. Since the methyl group is connected to the silicon atom, the macromolecule is very soft and easy to process. Silicone rubber has very superior electrical insulation properties, and the general volume resistivity is 1×10 14 Ω·cm or more. In addition, the saturated structure of the main chain makes the weather resistance (outdoor aging performance) of silicone rubber very good. The hardness only increased by 7 after 20a exposure at room temperature, t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L29/10C08L83/08C08L83/04C08K13/06C08K9/04C08K3/04C08K9/00C08K3/34C08K3/22C08K5/098C08K3/36C08K5/47
CPCC08K2003/2296C08L29/10C08L83/08C08L2205/03C08L83/04C08K13/06C08K9/04C08K3/04C08K9/00C08K3/346C08K3/22C08K5/098C08K3/36C08K5/47
Inventor 张文平
Owner 张文平
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