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Oil-resistant high-temperature-resistant seal gasket rubber for cylinders and preparation method thereof

A kind of sealing gasket and high temperature resistance technology, applied in the direction of engine sealing, mechanical equipment, engine components, etc., can solve the problems of difficult rubber application, achieve good high temperature resistance, good flame retardancy, and improve the effect of friction coefficient

Inactive Publication Date: 2015-08-12
南京林美鑫电子科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Due to the environment in which the cylinder is used, the gasket needs to have good oil resistance and high temperature resistance, because the rubber will swell to a certain extent when soaked in oil, which makes the application of rubber in the oil seal more difficult.

Method used

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  • Oil-resistant high-temperature-resistant seal gasket rubber for cylinders and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] An oil-resistant and high-temperature-resistant sealing gasket rubber compound for cylinders, which is prepared from the following raw materials in parts by weight (kg): nitrile rubber 70, fluorosilicone rubber 40, novolac resin 5, methyl hydrogen silicone oil 7, tall Oil diethanolamide 13, magnesium hydroxide 12, magnesium dimethacrylate 4, diisopropyl peroxydicarbonate 2, calcium stearate 5, ammonium persulfate 1, nano calcium silicate 20, dibutyl naphthalene sulfonate Sodium Acid 3, Hydroxyapatite Whiskers 10, Trimethylolpropane 7, Epoxy Rubber Seed Oil 6, N-(β-aminoethyl)-γ-aminopropyltrimethoxysilane 4, Silica 6. 3-Dimethylaminopropylamine 2. Sulfur 1.

[0016] A method for preparing an oil-resistant and high-temperature-resistant sealing gasket compound for a cylinder, comprising the following steps:

[0017] (1) Put nitrile rubber and fluorosilicone rubber in an internal mixer for 60-80 seconds, then add novolac resin, methyl hydrogen silicone oil, calcium s...

Embodiment 2

[0021] An oil-resistant and high-temperature-resistant sealing gasket rubber compound for cylinders, which is prepared from the following raw materials in parts by weight (kg): nitrile rubber 80, fluorosilicone rubber 50, novolac resin 6.5, methyl hydrogen silicone oil 8, tall Oil diethanolamide 14.5, magnesium hydroxide 14, magnesium dimethacrylate 5, diisopropyl peroxydicarbonate 3, calcium stearate 6, ammonium persulfate 2, nano calcium silicate 25, dibutyl naphthalene sulfonate Sodium phosphate 4, hydroxyapatite whisker 12, trimethylolpropane 8, epoxy rubber seed oil 6.5, N-(β-aminoethyl)-γ-aminopropyltrimethoxysilane 5, white carbon black 7.5, 3-dimethylaminopropylamine 3, sulfur 2.

[0022] The preparation method is the same as in Example 1.

Embodiment 3

[0024] An oil-resistant and high-temperature-resistant sealing gasket rubber compound for a cylinder, which is prepared from the following raw materials in parts by weight (kg): nitrile rubber 90, fluorosilicone rubber 60, novolac resin 8, methyl hydrogen silicone oil 9, tall Oil diethanolamide 6, magnesium hydroxide 16, magnesium dimethacrylate 6, diisopropyl peroxydicarbonate 4, calcium stearate 7, ammonium persulfate 3, nano calcium silicate 30, dibutyl naphthalene sulfonate Sodium phosphate 5, hydroxyapatite whisker 14, trimethylolpropane 9, epoxy rubber seed oil 7, N-(β-aminoethyl)-γ-aminopropyltrimethoxysilane 6, white carbon black 9. 3-Dimethylaminopropylamine 4. Sulfur 3.

[0025] The preparation method is the same as in Example 1.

[0026] The performance testing results of the oil-resistant and high-temperature-resistant sealing gasket compound for the cylinder prepared in the above-mentioned embodiments 1-3 are shown in the following table:

[0027]

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PUM

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Abstract

The invention discloses an oil-resistant high-temperature-resistant seal gasket rubber for cylinders and a preparation method thereof. The oil-resistant high-temperature-resistant seal gasket rubber for cylinders is prepared from the following raw materials in parts by weight: 70-90 parts of nitrile-butadiene rubber, 40-60 parts of fluorosilicone rubber, 5-8 parts of novolac resin, 7-9 parts of methyl hydrogen-containing silicon oil, 13-16 parts of tall oil acetal amide, 12-16 parts of magnesium hydroxide, 4-6 parts of magnesium dimethyl acrylate, 2-4 parts of diisopropyl peroxydicarbonate, 5-7 parts of calcium stearate, 1-3 parts of ammonium persulfate, 20-30 parts of nano calcium silicate, 3-5 parts of nekal, 10-14 parts of hydroxyapatite whisker, 7-9 parts of trimethylolpropane, 6-7 parts of epoxide rubber seed oil, 4-6 parts of N-(beta-aminoethyl)-gamma-aminopropyltrimethoxy silane, 6-9 parts of silica white, 2-4 parts of 3-dimethylaminopropylamine, 6-9 parts of oleic acid epoxy ester and 1-3 parts of sulfur. The seal gasket rubber has the advantages of favorable high temperature resistance, favorable oil resistance, favorable wear resistance, favorable flame retardancy, favorable aging resistance, favorable pressure resistance and the like.

Description

technical field [0001] The invention relates to a sealing gasket material, in particular to an oil-resistant and high-temperature-resistant sealing gasket rubber material for a cylinder and a preparation method thereof. Background technique [0002] Rubber has many excellent properties such as good high and low temperature resistance, ozone resistance, weather resistance, insulation and production inertia, and is widely used in various fields of the national economy. Seals are materials or parts that prevent fluid or solid particles from leaking from adjacent joint surfaces and prevent external impurities such as dust and moisture from invading the internal parts of the machine. Although the rubber and plastic seal is small, its function makes it a basic component and accessory in the main industries of the national economy such as national defense, chemical industry, petroleum, coal, transportation and machinery manufacturing, and occupies a very important position in the d...

Claims

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Application Information

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IPC IPC(8): C08L9/02C08L83/08C08L61/08C08L83/05C08L91/00C08K13/02C08K3/32C08K3/20C08K5/17C08K5/053C08K3/34F16J15/02
CPCC08K2201/011C08L9/02C08L2201/02C08L2201/08C08L2205/02C08L2205/035C08L83/08C08L61/06C08L83/04C08L91/00C08K13/04C08K2003/2224C08K5/14C08K5/098C08K3/34C08K7/08C08K3/36C08K3/06C08K5/17C08K5/053
Inventor 罗满清
Owner 南京林美鑫电子科技有限公司
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