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Environment-friendly anti-blooming ethylene propylene rubber compound

A technology of ethylene-propylene rubber and mixed rubber, which is applied in the field of rubber, which can solve the problems of human health damage, frosting and whitening of the surface of products with accelerators, and oil injection, etc., to achieve the effect of increasing vulcanization speed and excellent appearance quality

Active Publication Date: 2016-07-06
NANJING ORIENTLEADER TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since ethylene-propylene rubber is a non-polar rubber, the traditional thiuram accelerator will produce carcinogens such as nitrosamines during the vulcanization process, which will cause harm to human health; unreasonable accelerators can easily lead to frosting on the surface of the product. White, some rubber products require low hardness and high elasticity, so the product is prone to surface oil spraying, which affects the appearance quality of the product

Method used

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  • Environment-friendly anti-blooming ethylene propylene rubber compound
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  • Environment-friendly anti-blooming ethylene propylene rubber compound

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Embodiment Construction

[0015] The technical solutions of the present invention will be further described below through specific embodiments.

[0016] According to Table 1, each raw material component was weighed, and the ethylene-propylene rubber compound was prepared according to the following method: masticate oil-extended ethylene-propylene rubber (LANXESS EPDM5469Q) on an open mill for 2 minutes at room temperature, and add fine Materials (zinc oxide, stearic acid, antioxidant RD, TBzTD-70, accelerator CZ, accelerator ZBEC and accelerator BZ), N550 carbon black, natural gas semi-reinforcing carbon black, light Calcium carbonate and other fillers were mixed for 5 minutes, and finally sulfur, vulcanizing agent DTDC-80, and flow aid WB222 were added and mixed for 3 minutes. After parking at room temperature for 1 day, vulcanize on a flat vulcanizing machine with a vulcanization temperature of 160°C, a vulcanization pressure of 13Mpa, and a vulcanization time of 15 minutes.

[0017] Table 1 Example...

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Abstract

The invention discloses an environment-friendly anti-blooming ethylene propylene rubber compound.The ethylene propylene rubber compound is prepared from, by mass, 200 parts of oil-filling ethylene propylene diene monomer, 3-10 parts of zinc oxide, 0.5-3 parts of stearic acid, 0.2-1.5 parts of sulfur, 3-11.5 parts of accelerant, 0.3-2.5 parts of a vulcanizing agent, 0.5-3.5 parts of an anti-aging agent, 40-100 parts of N550 carbon black, 20-120 parts of natural gas semi-reinforcing carbon black, 20-50 parts of light calcium carbonate and 1-3 parts of flow promoter.The ethylene propylene rubber compound product cannot generate nitrosamine and other carcinogenic substances in the vulcanizing process, and the vulcanizing speed and the vulcanizing degree are increased on the premise that blooming does not occur.The blooming problem cannot occur in the parking process, appearance quality of products is excellent, and the ethylene propylene rubber compound has low hardness, environment friendliness, anti-blooming performance, high-temperature aging resistance and other excellent performance.

Description

technical field [0001] The invention belongs to the field of rubber and relates to an environment-friendly anti-blooming ethylene-propylene rubber compound rubber. Background technique [0002] With the rapid development of the railway industry and the automobile industry, higher and higher requirements are put forward for the quality and appearance of rubber products. Ethylene-propylene rubber is used more and more for its excellent aging resistance, ozone resistance, low temperature resistance, and superheated steam resistance. Since ethylene-propylene rubber is a non-polar rubber, the traditional thiuram accelerator will produce carcinogens such as nitrosamines during the vulcanization process, which will cause harm to human health; unreasonable accelerators can easily lead to frosting on the surface of the product. White, some rubber products require low hardness and high elasticity, so the product is prone to surface oil spraying, which affects the appearance quality o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/16C08K13/02C08K3/22C08K5/09C08K3/06C08K3/04C08K3/26B29C35/02
CPCB29C35/02C08K3/04C08K3/06C08K3/22C08K3/26C08K5/09C08K13/02C08K2003/2296C08K2003/265C08K2201/014C08L2201/08C08L23/16
Inventor 王定东郑兆杰宋亚平
Owner NANJING ORIENTLEADER TECH CO LTD
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