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Tetrafluoroethylene-propylene rubber/silicone rubber/chloroprene rubber composite sealing pad and preparation method thereof

A technology of tetrapropylene fluorine rubber and composite gasket, applied in the field of gasket and its preparation, can solve the problems of rubber gasket's sealing performance, compression permanent deformation resilience can not meet the actual requirements, etc., achieve small changes in volume and hardness, not easy Crack, good sealing effect

Inactive Publication Date: 2013-10-16
ANHUI CHUNHUI INSTR CABLE GROUP
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

With the continuous advancement of science and technology, the sealing performance, compression set and resilience of existing rubber gaskets are far from meeting the actual requirements.

Method used

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  • Tetrafluoroethylene-propylene rubber/silicone rubber/chloroprene rubber composite sealing pad and preparation method thereof

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Embodiment Construction

[0015] A tetrapropylene fluororubber / silicone rubber / neoprene composite gasket, made of the following raw materials in weight (kg): tetrapropylene fluororubber (TP-2) 48, silicone rubber (SR-315) 26, neoprene Rubber (CR2442) 15, magnesium methacrylate 4, tris(2,3-dichloropropyl) phosphate 6, decabromodiphenylethane 4, 2, 4-dichlorobenzoyl peroxide 2, N, N'-m-phenylene bismaleimide 1.5, C5 petroleum resin 4, fumed silica 12, modified fluorite powder 10, nano silicon nitride 4, trimethylolpropane trimethacrylate 2.5, hard Lead fatty acid 1.5, zinc oxide 2, anti-scorch agent CTP 0.5, anti-aging agent 4020 1.5, accelerator TMTD 3, accelerator NS 3;

[0016] The preparation method of the modified fluorite powder is as follows: crush the fluorite to below 15 μm, add diatomite equivalent to 8% of the fluorite weight, 4% sodium tripolyphosphate, 2% plant ash, and 3% nano-carbon , 5% simethicone oil, grind at 3000 r / min for 20 minutes, dry, then add an appropriate amount of water to b...

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PUM

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Abstract

The invention discloses a tetrafluoroethylene-propylene rubber / silicone rubber / chloroprene rubber composite sealing pad and a preparation method thereof. The tetrafluoroethylene-propylene rubber / silicone rubber / chloroprene rubber composite sealing pad is prepared from the following raw materials: tetrafluoroethylene-propylene rubber, silicone rubber, chloroprene rubber, magnesium methacrylate, 2, 4-dichloro-benzoyl peroxide, N, N'-m-phenylene bismaleimide, C5 petroleum resin, gas phase white carbon black, modified fluorite powder, nano-silicon nitride and the like. The tetrafluoroethylene-propylene rubber / silicone rubber / chloroprene rubber composite sealing pad disclosed by the invention selects the tetrafluoroethylene-propylene rubber with unique resistance to compression permanent deformation as a main raw material and takes the silicone rubber with excellent heat resistance, cold resistance, ozone resistance and atmospheric ageing resistance and the chloroprene rubber with excellent oil resistance and chemical corrosion resistance as auxiliary materials, the rubber sealing pad prepared by blending has the advantages of good sealing effect, good corrosion resistance, high cream content, capability of working for a long time in acid, base, oil and other media, small changes in volume and hardness and effect of being less prone to cracking, as well as excellent compression rebound resilience, high temperature resistance, cold resistance, aging resistance and the like, and the rubber sealing pad is durable.

Description

technical field [0001] The invention relates to a sealing gasket and a preparation method thereof, in particular to a tetrapropylene fluororubber / silicone rubber / chloroprene rubber composite sealing gasket and a preparation method thereof. Background technique [0002] Rubber gasket is a material used for sealing inside machinery, equipment, pipelines, etc. It is widely used in the fields of automobiles, electronics, and chemicals. With the continuous advancement of science and technology, the existing rubber gasket sealing performance, compression set, resilience, etc. are far from meeting the actual requirements. Therefore researching and developing a kind of high-performance rubber gasket has become the task of top priority. Contents of the invention [0003] The object of the present invention is to provide tetrapropylene fluororubber / silicone rubber / chloroprene rubber composite gasket and its preparation method. The rubber gasket has the characteristics of low compre...

Claims

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Application Information

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IPC IPC(8): C08L27/18C08L83/04C08L11/00C08K13/06C08K9/06C08K9/04C08K9/02C08K3/16B29C35/02
Inventor 沈必亮
Owner ANHUI CHUNHUI INSTR CABLE GROUP
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