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Rubber sealing material for sealing automotive oil cylinder and preparation method thereof

An oil cylinder sealing and rubber sealing technology, applied in the field of rubber materials, can solve the problems of general oil resistance and high temperature aging resistance, unable to meet market demand, affecting the service life of automobile oil cylinder seals, etc., to achieve excellent performance, good use effect, Long service life effect

Inactive Publication Date: 2017-07-18
HEFEI ZHIHUI LONGTUTENG INTPROP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Existing automotive oil cylinder seals perform generally in terms of oil resistance and high temperature aging resistance, which affects the service life of automotive oil cylinder seals and gradually fails to meet market demand

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] A rubber sealing material used for the sealing of automobile oil cylinders, made of the following raw materials in parts by weight: 85 parts of nitrile rubber, 42 parts of fluorosilicone rubber, 2 parts of cobalt oxide, 1 part of magnesium dimethacrylate, and fumed white carbon 7 parts of black, 3 parts of stearic acid, 2 parts of anti-aging agent CPPD, 1 part of N-phenyl-β-naphthylamine, 2 parts of ethyltrimethoxysilane, 0.5 parts of n-butyl titanate, diphthalate 3 parts of butyl ester, 1 part of cadmium oxide, 3 parts of N, N'-m-phenylene bismaleimide, 0.6 part of dicumyl peroxide.

[0020] In this embodiment, the preparation method of the rubber sealing material used for automobile oil cylinder sealing, the steps are as follows:

[0021] 1) Weigh nitrile rubber and fluorosilicone rubber, put them into an internal mixer and masticate for 1min, then add cobalt oxide, continue masticating for 3min, discharge at 115°C, and let stand for 10h to obtain the first mixture; ...

Embodiment 2

[0026] A rubber sealing material used for the sealing of automobile cylinders, made of the following raw materials in parts by weight: 86 parts of nitrile rubber, 43 parts of fluorosilicone rubber, 4 parts of cobalt oxide, 1.8 parts of magnesium dimethacrylate, and gas phase white carbon 8 parts of black, 4 parts of stearic acid, 2.3 parts of anti-aging agent CPPD, 1.8 parts of N-phenyl-β-naphthylamine, 4 parts of ethyltrimethoxysilane, 0.8 parts of n-butyl titanate, diphthalate 3.4 parts of butyl ester, 1.1 parts of cadmium oxide, 4.5 parts of N,N'-m-phenylene bismaleimide, and 0.9 parts of dicumyl peroxide.

[0027] In this embodiment, the preparation method of the rubber sealing material used for automobile oil cylinder sealing, the steps are as follows:

[0028] 1) Weigh nitrile rubber and fluorosilicone rubber, put them into an internal mixer and masticate for 1 minute, then add cobalt oxide, continue masticating for 4 minutes, discharge at 116°C, and let stand for 11 hou...

Embodiment 3

[0033] A rubber sealing material used for the sealing of automobile oil cylinders, made of the following raw materials in parts by weight: 87 parts of nitrile rubber, 44 parts of fluorosilicone rubber, 3.5 parts of cobalt oxide, 1.5 parts of magnesium dimethacrylate, and fumed white carbon 9 parts of black, 5 parts of stearic acid, 2.6 parts of anti-aging agent CPPD, 1.4 parts of N-phenyl-β-naphthylamine, 3 parts of ethyltrimethoxysilane, 0.7 parts of n-butyl titanate, diphthalate 3.5 parts of butyl ester, 1.3 parts of cadmium oxide, 4 parts of N,N'-m-phenylene bismaleimide, and 0.8 parts of dicumyl peroxide.

[0034] In this embodiment, the preparation method of the rubber sealing material used for automobile oil cylinder sealing, the steps are as follows:

[0035] 1) Weigh nitrile rubber and fluorosilicone rubber, put them into an internal mixer and masticate for 2 minutes, then add cobalt oxide, continue masticating for 4 minutes, discharge at 118°C, and let stand for 13 ho...

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Abstract

The invention discloses a rubber sealing material for sealing an automotive oil cylinder. The rubber sealing material is prepared from the following raw materials: butadiene-acrylonitrile rubber, fluorinated silicone rubber, cobalt oxide, magnesium dimethacrylate, fumed silica, stearic acid, an anti-aging agent CPPD, N-phenyl-beta-naphthylamine, ethyltrimethoxysilane, n-butyl titanate, dibutyl phthalate, cadmium oxide, N,N'-meta-phenylene bismaleimide and dicumyl peroxide. The invention also discloses a preparation method of the rubber sealing material for sealing the automotive oil cylinder. The rubber sealing material prepared by the preparation method provided by the invention has favorable oil resistance and high-temperature ageing resistance; a sealing element, which is made by using the rubber sealing material, for the automotive oil cylinder is long in service life and good in use effect; the requirement of a market can be met; the rubber sealing material has a wide market prospect.

Description

technical field [0001] The invention relates to the technical field of rubber materials, in particular to a rubber sealing material used for sealing automobile oil cylinders and a preparation method thereof. Background technique [0002] Automotive seals, as the name suggests, are parts that should be sealed in cars, mainly made of elastomers. All the functions of automotive seals are to prevent leakage or sound insulation and shock absorption. Most of the automotive seals are made of rubber, and the elastic elements in the mechanical seal are made of metal and non-metal sealing materials, so as to achieve the final "sealing effect". There are many kinds of automotive seals, such as door seals and cylinder seals, etc. Among them, the cylinder seal is mainly to prevent oil leakage in the automotive cylinder. Due to the long-term contact of gasoline cylinder seals, the requirements for its oil resistance are high. In addition, in the hot summer, the automobile cylinder seals...

Claims

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Application Information

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IPC IPC(8): C08L9/02C08L83/08C08K13/02C08K3/22C08K5/098C08K3/36C08K5/09
CPCC08L9/02C08K2003/2289C08L2201/08C08L83/08C08K13/02C08K3/22C08K5/098C08K3/36C08K5/09
Inventor 不公告发明人
Owner HEFEI ZHIHUI LONGTUTENG INTPROP CO LTD
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