Seal rubber for valve rod of automobile and preparation method of seal rubber

A sealing rubber and valve stem technology, applied in the field of synthetic rubber, can solve the problem of unsatisfactory sealing performance, achieve low raw material and production costs, improve ozone resistance and low temperature resistance, and improve overall performance.

Inactive Publication Date: 2013-04-03
马鞍山市中澜橡塑制品有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The sealing performance of the existing rubber seals is not satisfactory under the working conditions of high temperature, low temperature, large temperature d

Method used

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  • Seal rubber for valve rod of automobile and preparation method of seal rubber

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Experimental program
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Embodiment Construction

[0021] A kind of preparation of sealing rubber for automobile valve stem,

[0022] Weigh 65kg of acrylate rubber (AR-100), 15kg of butyl rubber BK-1675N (Yanshan Petrochemical), 11kg of nitrile rubber N240, 9kg of chlorosulfonated polyethylene rubber TS-930 (Tosoh Japan), 9kg of poly-4- Methyl-1-pentene 1.5kg, carbon black N440 15kg, super wear-resistant carbon black N110 9kg, heavy calcium carbonate 9kg, polyvinyl alcohol 2kg, calcium stearate 1.5kg, stearic acid 0.6kg, zinc oxide 1.5 kg, wollastonite powder 8kg, quartz powder 3kg, modified iron tailings slag powder 10kg, hexamethyldisilazane 1.3kg, vulcanizing agent DTBP 1.2kg, N,N'- m-phenylene bismaleimide 3.6 kg, antiaging agent 4010NA 1.1kg, antiaging agent ODA 1.4kg, aminopropyltriethoxysilane 1.8kg, epoxy butyl oleate 15kg.

[0023] The preparation method comprises the following steps:

[0024] (1) Preparation method of modified tree ash:

[0025] Add sericin powder with 1-2% weight of tree ash to the tree ash and m...

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Abstract

The invention discloses a seal rubber for a valve rod of an automobile. The seal rubber comprises the following raw materials by weight: 64 to 66 parts of acrylic rubber, 14 to 16 parts of butyl rubber BK-1675N (Yanshan Petrochemical), 10 to 12 parts of butadiene-acrylonitrile rubber N240, 8 to 10 parts of chlorosulfonated polyethylene rubber TS-930 (Tosoh), 1 to 2 parts of poly-4-methy-1-amylene, 10 to 20 parts of carbon black N440, 8 to 10 parts of super wear-resisting carbon black N110, 6 to 10 parts of heavy calcium carbonate, 1 to 3 parts of hard vinyl alcohol, 1 to 2 parts of calcium stearate, 0.5 to 0.8 parts of stearic acid, 1 to 2 parts of zinc oxide, 5 to 10 parts of wollastonite in powder, 2 to 4 parts of quartz powder, 9 to 11 parts of modified iron tailings powder, 1 to 2 parts of hexamethyldisilazane, 1 to 2 parts of vulcanizing agent DTBP (Di Tert Butyl Peroxide), 3 to 4 parts of N, N'-metabenzyl bismaleimide, 1 to 2 parts of antioxidant 4010NA, 1 to 2 parts of antioxidant ODA,1 to 3 parts of aminopropyltriethoxysilane, and 14 to 16 parts of epoxidized butyl oleate. The rubber material is excellent in ozone resistance, low-temperature resistance and heat resistance, wide in operating temperature range and environment-friendly in process, and can be used for manufacturing various seal components.

Description

technical field [0001] The invention relates to the field of synthetic rubber, in particular to a gasket rubber material for automobile valves and a preparation method thereof. Background technique [0002] Rubber parts for automobiles play a major role in anti-vibration, noise reduction, driving stability and ride comfort of vehicles. The amount of general-purpose rubber materials used in automobiles is relatively large, but as the engine tends to develop in the direction of high power and miniaturization in recent years, the ambient temperature around the engine has increased, and the emission control regulations have become more stringent. In addition, the use of alcohol-containing fuels has forced rubber Parts improve heat resistance, cold resistance, oil resistance, aging resistance and other properties. Therefore, the consumption of high-performance special synthetic rubber is increasing, and automobiles are the main market for these special synthetic rubbers. Theref...

Claims

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Application Information

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IPC IPC(8): C08L33/04C08L23/22C08L9/02C08L23/34C08L23/20C08K13/06C08K3/04C08K3/26C08K5/098C08K3/22C08K3/36C08K3/34
Inventor 陈贤锋阚蕾申大伟沈根骆敏申丽霞陈玉娟沈春花沈红梅
Owner 马鞍山市中澜橡塑制品有限公司
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