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 |
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DOI: |
中文关键词: 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 |
英文关键词: NBR PP thermoplastic vulcanizate ultra-fine full-vulcanized powder rubber non-isothermal crystallization crystallization kinetics |
基金项目:国家重点基础研究发展计划资助项目(2011CB606003) |
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中文摘要: |
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。 |
英文摘要: |
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. |
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