摘要
从橡胶基体、交联体系、补强体系、防老体系和增塑体系等方面着手,研究了配合体系对乙丙橡胶复合材料耐热老化性能的影响。结果表明:通过极低不饱和度的三元乙丙橡胶和乙烯—辛烯共聚弹性体并用,采用甲基丙烯酸锌作增粘补强材料、液体乙丙橡胶新型增塑剂和N—4(苯胺基苯基)马来酰亚胺(MC)反应性防老剂,制备的三元乙丙橡胶复合材料有很高耐热老化性能;在180℃下老化7d后,硬度变化率小于10%,拉伸强度和拉断伸长率分别保持在70%和50%以上。
The effects of the rubber matrix, the vulcanizing system, the reinforcing system, the aging system and the plasticizing system on the heat-aging resistance of ethylene-propylene-diene copolymers （EPDM） were investigated. The results showed that the EPDM/POE composites with high heat aging resistance was prepared by using the most lowly unsaturated EPDM and ethylene-octene co- polymers（POE） as rubber matrix,zinc methacrylate（ZDMA） as reinforcing/adhesive agent,liquid eth- ylene-propylene eopolymers（LEPM） as plasticizing agent and N-4 （Anilino phenyl） maleimide（MC） as reactive antioxidant. It was found that the retentions of the tensile strength and the elongation at break were still retained more than 70% and 50% at 180℃× 7d, and the hardness change was lower than 10%.
出处
《特种橡胶制品》
2009年第3期14-17,共4页
Special Purpose Rubber Products
关键词
三元乙丙橡胶
耐热老化性能
马来酰亚胺
ethylene-propylene-diene copolymer
heat aging resistance
maleimide
