AS/NBR/HSB三元共混体系的动态硫化  

Dynamic vulcanization of AS/NBR/HSB blends

作　　者：王忠健[1] 张祥福[1] 张隐西[1] 张磊[1] 

机构地区：[1]上海交通大学高分子材料研究所,上海200240

出　　处：《合成橡胶工业》2003年第2期111-114,共4页China Synthetic Rubber Industry

摘　　要：采用动态硫化方法制备了丙烯腈-丁二烯共聚物/丁腈橡胶/高苯乙烯树脂(AS/NBR/HSB)三元共混热塑性弹性体,研究了NBR中丙烯腈质量分数、橡塑比和硫化剂对共混体系性能的影响。结果表明,动态硫化显著提高了共混材料的拉伸强度和扯断伸长率,酚醛树脂是AS/NBR/HSB共混体系比较理想的动态硫化交联剂;采用HSB,NBR,AS三元共混,共混材料的拉伸强度和扯断伸长率得到良好的平衡;差示扫描量热分析表明,该三元共混材料具有NBR和AS两相的玻璃化转变温度,说明该体系是典型的不相容体系。The dnyamic vulcanization of AS/NBR/HSB blends was researched.The i nf luence of acrylonitrile in nitrile rubber,rubber/resin ratio and curing agents o n AS/NBR/HSB dynamic vulcanizates were investigated.The results showed that the tensile strength and elongation at break of the vulcanizates could be improved b y dynamic vulcanization and phenol formaldehyde resin did better than other curi ng agents to the blends.It was concluded that the AS/NBR/HSB blend was a typical uncompatibilized system by the result of DSC.

关 键 词：丙烯腈-苯乙烯共聚物 高苯乙烯树脂 丁腈橡胶 热塑性弹性体 物理机械性能 AS/NBR/HSB三元共混体系 动态硫化 

分 类 号：TQ334.9[化学工程—橡胶工业]