NBR/PP TPV中PP的非等温结晶行为研究  

Non-isothermal Crystallization Behavior of PP in NBR/PP Thermoplastic Vulcanizates

作　　者：韩吉彬[1] 王增龙 田洪池 佘庆彦 张立群[1] 田明[1] 

机构地区：[1]北京化工大学北京市新型高分子材料制备与加工重点实验室,北京100029 [2]山东道恩集团有限公司,山东龙口265700

出　　处：《橡胶工业》2011年第8期453-459,共7页China Rubber Industry

基　　金：国家重点基础研究发展计划资助项目(2011CB606003)

摘　　要：通过不同方法制备了3种不同NBR/PP热塑性硫化胶(TPV),用差示扫描量热法研究TPV中PP的非等温结晶动力学,并分别利用Ozawa方程和莫志深方法对3种TPV中PP的非等温结晶行为进行解析。结果表明:TPV中NBR对PP的结晶起成核剂的作用,可提高PP的结晶速率,原位反应增容制备的TPV中PP的结晶速率最大;莫志深方法能很好地描述PP的非等温结晶过程。The non-isothermal crystallization behavior of PP in three types of NBR/PP thermoplastic vulcanizates（TPVs） was investigated by differential scanning calorimetry method,and the Ozawa model and Mo Zhi-shen equation were also used to analyze the non-isothermal crystallization process.The results showed that,NBR acted as heterogeneous nucleation centers of PP nucleus,the crystallization rate of PP thereby accelerated;and the TPV prepared by in situ reactive compatibilization had the highest crystallization rate.Non-isothermal crystallization kinetics fitted Mo Zhi-shen equation well.

关 键 词：NBR PP 热塑性硫化胶 超细全硫化粉末橡胶 非等温结晶 结晶动力学 

分 类 号：TQ333.7[化学工程—橡胶工业] TQ325.14