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Rubber gasket material used for valves, and preparation method thereof

A rubber gasket and valve technology, applied in the field of rubber composite material processing, can solve problems such as low strength, unsatisfactory sealing effect, poor wear resistance, etc., achieve low cost, good sealing performance, and improve process performance.

Active Publication Date: 2014-03-19
蚌埠赛英电子科技发展有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing rubber gaskets have defects such as unsatisfactory sealing effect, poor wear resistance, and low strength, which are far from meeting the actual requirements.

Method used

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  • Rubber gasket material used for valves, and preparation method thereof
  • Rubber gasket material used for valves, and preparation method thereof

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Embodiment Construction

[0009] The present invention will be described in detail below through specific examples.

[0010] A rubber gasket material for valves, made of the following raw materials in parts by weight (kg): nitrile rubber 80, EPDM rubber 12, zinc oxide 3, stearic acid 5, sulfur 2, 3, 3'- Disulfonyl hydrazide diphenyl sulfone 4, accelerator M0.5, accelerator TMTD1, aluminum hydroxide 10, zinc stearate 1, glycerol triglyceride 6, magnesium oxide 2, anti-scorch agent CTP1.2, N220 carbon black 15, N351 carbon black 30, modified attapulgite 10;

[0011] The modified attapulgite is made of the following raw materials in parts by weight (kg): attapulgite 20, clay 13, 1,6-hexamethylene diisocyanate 4, tripropylene glycol diacrylate 2, light calcium carbonate 2 , zinc oxide 1, wollastonite powder 3, magnesium hydroxide 10, chlorinated paraffin 1, diatomaceous earth 4, tributyl citrate 2, jade powder 8, pepper seed oil 1; the preparation method is to mix attapulgite, clay , diatomaceous earth m...

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PUM

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Abstract

The invention discloses a rubber gasket material used for valves, and a preparation method thereof. The rubber gasket material comprises following raw materials, by weight, 80 to 90 parts of butadiene-acrylonitrile rubber, 12 to 15 parts of ethylene propylene diene monomer, 3 to 7 parts of zinc oxide, 5 to 8 parts of stearic acid, 2 to 5 parts of sulfur, 4 to 6 parts of DPSDSH, 0.5 to 1 part of promoter M, 1 to 2 parts of promoter TMTD, 10 to 12 parts of aluminium hydroxide, 1 to 2 parts of zinc stearate, 6 to 8 parts of glycerol trioleate, 2 to 4 parts of magnesium oxide, 1.2 to 1.4 parts of anti-scorching agent CTP, 15 to 18 parts of N220 carbon black, 30 to 35 parts of N351 carbon black, and 10 to 12 parts of modified attapulgite. According to the rubber gasket material, modified attapulgite is added, so that processing properties of the rubber gasket material are improved; and environmental friendly accessory ingredients are used, so that toxic and side effects are reduced, and pollution on the environment is reduced. Sealing performance of the rubber gasket material is excellent, formula is reasonable, technology is simple, cost is low, and the rubber gasket material possesses excellent aging resistance and corrosion resistance.

Description

technical field [0001] The invention relates to the field of processing rubber composite materials, in particular to a rubber gasket material for valves and a preparation method thereof. Background technique [0002] Gasket is a material used for sealing inside machinery, equipment, pipelines, etc. The gaskets currently used are mostly rubber gaskets, which are characterized by high temperature resistance, ozone resistance, natural aging resistance, vacuum resistance, fuel oil resistance, lubricating oil resistance, strong oxidant resistance, chemical resistance and good electrical insulation performance. Widely used in defense industry and civilian industry. However, the existing rubber gaskets have defects such as unsatisfactory sealing effect, poor wear resistance and low strength, which 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 invent...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L9/02C08L23/16C08K13/06C08K9/00C08K9/02C08K3/34C08K5/103C08K3/26C08K3/22C08K5/11
Inventor 胡建强胡巍李丽
Owner 蚌埠赛英电子科技发展有限公司
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