动态硫化制备粉末丁苯橡胶/聚丙烯合金的研究  

Study on properties of dynamic vulcanized powdered styrene-butadiene rubber/polypropylene alloys

作　　者：马朋高 赵志超 王洪山 郑红兵 王永峰 付含琦 

机构地区：[1]中国石油兰州化工研究中心,甘肃兰州730060

出　　处：《弹性体》2010年第3期13-16,共4页China Elastomerics

摘　　要：采用双螺杆动态硫化工艺,用粉末丁苯橡胶(PSBR)改性聚丙烯(PP)制备了PSBR/PP共混物,考察了二者的质量比、软化剂、补强剂和加工工艺对共混物性能的影响,并对体系的耐老化性能进行了初步研究。结果表明,当PSBR与PP质量比为12/88时,使用软化剂可提高共混物的加工流动性;纳米高岭土对共混物有较明显的增强作用;用动态硫化工艺制得共混物的性能优于非动态硫化工艺制得的共混物。PP/powdered styrene-butadiene rubber（PSBR） blends were prepared via the modification of polypropylene with PSBR by twin-screw dynamic vulcanization process.The effects of mass ratio of PSBR to PP,the amount of softening agent,the type of reinforcing agent and processingt process on the properties of blends and aging resistance of blends were investigated.The results showed that the flow properties of blends in processing were improved when softening agent was used,and the reinforcement of nano-kaolin to blends was obvious in the condition of 12∶88 of mass ratio of PSBR to PP.The aging resistance of blends made by dynamic vulcanization was better than that of blends made by non-dynamic vulcanization.

关 键 词：粉末丁苯橡胶 聚丙烯合金 动态硫化 改性 增强作用 

分 类 号：TQ333.1[化学工程—橡胶工业] TQ325