Oil-resistant high-temperature compression fatigue-resistant chloroprene rubber composition

A chloroprene rubber and composition technology, which is applied to springs, mechanical equipment, low internal friction springs, etc. made of plastic materials, can solve the problems of limiting the application of shock absorbers, narrow high temperature resistance range of natural rubber, and poor oil resistance. , to achieve the effect of easy procurement, excellent fatigue resistance and convenient operation

Inactive Publication Date: 2013-01-23
SHANGHAI ZHONGLI AUTO PARTS
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, natural rubber has a narrow range of high temperature resistance and poor oil resistance, which limits its application in the shock absorber industry

Method used

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  • Oil-resistant high-temperature compression fatigue-resistant chloroprene rubber composition
  • Oil-resistant high-temperature compression fatigue-resistant chloroprene rubber composition

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1～5

[0023] A kind of neoprene composition, is made up of each raw material listed in the table below:

[0024]

[0025] The above-mentioned chloroprene rubber composition is made into the shock-absorbing material used on the automobile engine shock absorber. Nickel butyl dithiocarbamate, carbodiimide, microcrystalline wax 1900, active zinc oxide, stearic acid, carbon black N-550, nano-silicate filler, plasticizer DOS, open the internal mixer to mix Refining for 5 minutes, the temperature is guaranteed to be below 65 degrees, put the mixed rubber material on the 6-inch open mixer and make two thin triangle bags, and then put it in the internal mixer cold machine, add sulfur, magnesium oxide, NA The temperature of -22 and TBTD is kept above 45 degrees and below 65 degrees, and the mixing time is 3 minutes, and then take two Botongda triangle bags on the open mill, and the tablets can be used after 6 hours of parking.

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Abstract

The invention provides an oil-resistant high-temperature compression fatigue-resistant chloroprene rubber composition, which is characterized in that the composition comprises: 85-95 parts by weight of chloroprene rubber, 5-15 parts by weight of acrylate rubber, 1-3 parts by weight of benzimidazole antioxidants, 1-3 parts by weight of nickel dibutyl dithiocarbamate, 1-3 parts by weight of carbodiimide, 1-3 parts by weight of paraffin, 5-8 parts by weight of activated zinc oxide, 0.5-5 parts by weight of stearic acid, 62-92 parts by weight of reinforcing agents, 10 parts by weight of plasticizers, 0.5-5 parts by weight of vulcanizers, and 3-6 parts by weight of auxiliary crosslinking agents. The invention has good oil resistance, and good high-temperature compression fatigue resistance, has excellent thermal oxidative aging protection effect and fatigue protection effect.

Description

technical field [0001] The invention relates to an oil-resistant, high-temperature and compression-fatigue-resistant chloroprene rubber composition, which is used in automobile engine shock absorbers. Background technique [0002] In order to reduce the vibration and noise of automobiles, various means have been adopted, including the use of various shock-absorbing materials, and rubber is the most widely used. Rubber has very good viscoelasticity and damping properties. When it is deformed by an external force, part of the energy is stored in the form of potential energy, and the other part of the energy is converted into heat energy and dissipated, so that it can be used in a wider frequency band. It can effectively reduce the resonance amplitude in random vibration, which cannot be replaced by general materials. The high elasticity, high strength and high fatigue durability of natural rubber make it widely used in the shock absorption industry. However, natural rubber h...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L11/00C08L33/04C08K13/02C08K5/37C08K5/39C08K5/29C08K3/22C08K5/09C08K3/04C08K3/34C08K5/11C08K3/06C08K5/405C08K5/40F16F1/36
Inventor 林然
Owner SHANGHAI ZHONGLI AUTO PARTS
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