公开(公告)号：KR1020120130634A

公开(公告)日：2012-12-03

申请号：KR1020110048729

申请日：2011-05-23

Applicant: 현대자동차주식회사 ,  기아자동차주식회사

Inventor： 박종민 ,  이성훈 ,  양경모 ,  김영길 ,  정재흠

IPC: C08L23/16 ,  C08K5/44 ,  C08K3/04 ,  B60K5/12

CPC classification number: C08L23/16 ,  B60K5/12 ,  C08K3/04 ,  C08K5/44 ,  C08L2205/02 ,  C08L2666/66

Abstract: PURPOSE: An EPDM rubber composition is provided to have mechanical properties which are the same as natural rubber material, to improve heat resistance and fatigue resistance, such that the composition can be applied to an engine mount which requires high heat resistance and high durability. CONSTITUTION: An EPDM rubber composition comprises: a first EPDM rubber of which weight average molecular weight is 300,000-500,000 g/mol, the composition ratio of ethylene is 40-70 weight%, and the contents of unconjugated diene is 4-6 weight%; a second EPDM rubber of which weight average molecular weight is 400,000-600,000 g/mol, the composition ratio of ethylene is 50-70 weight%, and the contents of unconjugated diene is 3-5 weight%; a vulcanizer; an accelerator; and a filler. The weight ratio of the first EPDM rubber and the second EPDM rubber is 6-2:4-8.

Abstract translation: 目的：提供EPDM橡胶组合物以具有与天然橡胶材料相同的机械性能，以提高耐热性和耐疲劳性，使得该组合物可以应用于需要高耐热性和高耐久性的发动机支架。 构成：EPDM橡胶组合物包含：重均分子量为30万〜500,000g / mol的第一EPDM橡胶，乙烯的组成比为40〜70重量％，非共轭二烯的含量为4-6重量％ ; 重均分子量为400,000〜600,000g / mol的乙二醇EPDM橡胶，乙烯的组成比为50-70重量％，非共轭二烯的含量为3-5重量％ 硫化机 加速器 和填料。 第一EPDM橡胶和第二EPDM橡胶的重量比为6-2:4-8。