Nitrile butadiene rubber gasket used for sealing high-pressure lubricating oil and preparation method thereof

A technology of nitrile rubber and carboxylated nitrile rubber, which is applied in the field of rubber gaskets, can solve the problems that the comprehensive performance cannot meet the market demand, etc., and achieve improved heat resistance and chemical stability, improved mechanical properties, and excellent pressure resistance Effect

Inactive Publication Date: 2016-08-10
ANHUI JINGYI GLASS MACHINERY
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  • Claims
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Problems solved by technology

With the rapid development of science and technology and industry, the performance requirements for nitrile rubber sealing materials are getting higher and higher, and the comprehensive performance of nitrile rubber gaskets for high-pressure lubricating oil seals on the existing market has been increasingly unable to meet the market requirements. need

Method used

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  • Nitrile butadiene rubber gasket used for sealing high-pressure lubricating oil and preparation method thereof

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Embodiment Construction

[0014] A kind of nitrile rubber gasket for high-pressure lubricating oil sealing, made of the following raw materials in weight (kg): carboxylated nitrile rubber 35, thermoplastic polyester elastomer 24, chlorohydrin rubber 19, C9 petroleum resin 6, white corundum powder 12. Accelerator NS 1.5, accelerator ZDBP 0.8, 1,2-polybutadiene 7, 1,1-di-tert-butylperoxycyclohexane 2.5, tetrachlorobenzoquinone 1.5, ethylenethiourea 2.5, partial Triallyl trimellitate 4, zinc stearate 1, antioxidant RD 1, antioxidant TMDQ 0.5, diisononyl phthalate 8, tungsten disulfide 12, modifier 9;

[0015] The preparation method of the modifier is as follows: (1) take the following raw materials in weight (kg): sea ball stone 17, needle coke 11, polymerized ferrophosphorus powder 13, nanometer aluminum titanate 10, methylene dinaphthalene sulfonate Sodium sulfosuccinate 3, sodium dioctyl sulfosuccinate 2, cetearyl glucoside 2, polypropylene glycol 200 6, tri-n-butylamine 5, octyldodecyl mescemate 4; (2...

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Abstract

The invention discloses a nitrile butadiene rubber gasket used for sealing high-pressure lubricating oil and a preparation method thereof. The nitrile butadiene rubber gasket is prepared from the following raw materials in parts by weight: 25-40 parts of carboxylated nitrile butadiene rubber, 16-27 parts of thermoplastic polyester elastomer, 12-23 parts of chlorohydrin rubber, 4-8 parts of C9 petroleum resin, 10-15 parts of white corundum micro powder, 1-2 parts of accelerator NS, 0.5-1 part of accelerator ZDBP, 5-10 parts of 1,2-polybutadiene, 2-3 parts of 1,1-di(tert-butylperoxy)cyclohexane, 1-2 parts of tetra-chloro-benzoquinone, 2-3 parts of ethylene thiourea, 3-5 parts of triallyl trimellitate, 1-2 parts of zinc stearate, 1-2 parts of anti-aging agent RD, 0.5-1 part of anti-aging agent TMDQ, 6-12 parts of diisononyl phthalate, 10-15 parts of tungsten disulfide and 6-12 parts of modifier. The nitrile butadiene rubber gasket has excellent comprehensive properties, and not only has higher mechanical strength but also has excellent pressure, oil, wear, impact and fatigue resistance.

Description

technical field [0001] The invention relates to a rubber sealing gasket, in particular to a nitrile rubber sealing gasket for high-pressure lubricating oil sealing and a preparation method thereof. Background technique [0002] Nitrile rubber is a polymer formed by emulsion copolymerization of butadiene and acrylonitrile. It is famous for its excellent oil resistance, and also has good wear resistance, heat resistance, aging resistance and air tightness. Therefore, it is widely used in the rubber industry and is suitable for making various oil-resistant gaskets. With the rapid development of science and technology and industry, the performance requirements for nitrile rubber sealing materials are getting higher and higher, and the comprehensive performance of nitrile rubber gaskets for high-pressure lubricating oil seals on the existing market has been increasingly unable to meet the market requirements. need. Contents of the invention [0003] The object of the present ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L13/00C08L67/00C08L71/03C08L57/02C08K13/06C08K9/04C08K3/32C08K3/24C08K3/22C08K3/30B29C35/02
CPCC08L13/00B29C35/02C08K2201/011C08L2201/08C08L2205/035C08L2207/04C08L67/00C08L71/03C08L57/02C08K13/06C08K9/04C08K3/32C08K3/24C08K2003/2227C08K2003/3009
Inventor 吴杰芳
Owner ANHUI JINGYI GLASS MACHINERY
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