章维国,杨春,俞晨曦,章于川.耐高温三元乙丙橡胶胶料的配方设计[J].橡胶科技,2020,18(3):0150-0153. |
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耐高温三元乙丙橡胶胶料的配方设计 |
Formulation Design of High Temperature Resistant EPDM Compound |
投稿时间:2019-08-21 修订日期:2019-08-21 |
DOI:10.12137/j.issn.2095-5448.2020.03.0150 |
中文关键词: 三元乙丙橡胶 VNB-EPDM ENB-EPDM 第三单体 耐高温性能 复合防老剂 配方设计 |
英文关键词: EPDM VNB-EPDM ENB-EPDM the third monomer high temperature resistance antioxidant composite system formula design |
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中文摘要: |
研究以VNB(5-乙烯基-2-降冰片烯)为第三单体的三元乙丙橡胶(VNB-EPDM)胶料的耐热氧老化性能,并与以ENB(5-亚乙基-2-降冰片烯)为第三单体的EPDM(ENB-EPDM)和二元乙丙橡胶(EPM)对比。结果表明:与ENB-EPDM胶料相比,VNB-EPDM胶料的硫化速度较快,交联程度较高,耐高温性能更好;以VNB-EPDM作为主体材料,采用过氧化物硫化体系和防老剂445/MB/TMQ(并用比为1/1/1)的复合防护体系,胶料的耐高温(175 ℃)性能与价格较高的乙烯-丙烯酸酯橡胶相当,可用于制备耐高温橡胶制品。 |
英文摘要: |
The heat and oxygen aging properties of VNB(5-vinyl-2-norbornene) as the third monomer of EPDM(VNB-EPDM) as well as ENB(5-ethylene-2-norbornene)-EPDM and ethylene propylene rubber(EPM)were discussed.The results showed that compared with ENB-EPDM compound,VNB-EPDM compound had faster curing speed,higher crosslinking degree,and relatively high temperature resistance,by utilizing VNB-EPDM as the main material,and using peroxide as vulcanizing agent,the antioxidant composite system of antioxidant 445/MB/TMQ(1/1/1),the properties of high temperature(175 ℃) resistance was similar as AEM,which could be used to make high temperature resistant rubber products. |
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