橡胶材料聚丙乙烯橡胶，又叫乙丙橡胶以乙烯、丙烯为主要单体的合成橡胶EPR

聚丙乙烯橡胶，又叫乙丙橡胶，乙丙橡胶是以乙烯、丙烯为主要单体的合成橡胶 英文名：Ethylene propylene rubber  别名EPR

新材料猎头青儒引士编辑整理

橡胶分子链中依单体单元组成不同，有二元乙丙橡胶和三元乙丙橡胶之分。前者为乙烯和丙烯的共聚物，以EPM表示；后者为乙烯、丙烯和少量的非共轭二烯烃第三单体的共聚物，以EPDM表示，二者统称为乙丙橡胶ethylene propylene rubber [EPR]。

乙丙橡胶因其主链是由化学稳定的饱和烃组成，故其耐臭氧、耐热、耐候等耐老化性能优异，具有良好的耐化学品、电绝缘性能、冲击弹性、低温性能、低密度和高填充性及耐热水性和耐水蒸气性等，可广泛用于汽车部件、建筑用防水材料、电线电缆护套、耐热胶管、胶带、汽车密封件、润滑油改性等领域。

代表性企业：阿郎新科、陶氏 埃克森 锦湖 吉林石化

Ethylene-propylene copolymer, a class of synthetic rubber produced by copolymerizing ethylene and propylene, usually in combination with other chemical compounds.，there are two major types of ethylene-propylene copolymers with elastic properties: those made with ethylene and propylene alone and those made with small amounts (approximately 5 percent) of a diene—usually ethylidene norbornene or 1,4-hexadiene. (A diene is a hydrocarbon with two pairs of carbon atoms joined by a double bond. Ethylene and propylene are olefins, hydrocarbons in which there is only one carbon-carbon double bond.) The former is known as EPM (ethylene-propylene monomer) and the latter as EPDM (ethylene-propylene-diene monomer).They display excellent resistance to electricity and ozone and an ability to be processed with a number of additives. They are made into products for use in automotive engines, electrical wiring, and construction.

Key company:DOW ATLANXEO EXXONMOBIL ETC