PP／棉秆皮纤维复合材料非等温结晶行为的研究  

Study on Non-isothermal Crystallization Behavior of PP/CSBF composites

作　　者：谭斌 刘树荣 曹素娇 冯彦洪 瞿金平 

机构地区：[1]华南理工大学聚合物新型成型装备国家工程研究中心,聚合物成型加工工程教育部重点实验室,广东广州510640

出　　处：《塑料工业》2012年第B10期39-42,共4页China Plastics Industry

基　　金：国家自然科学基金资助项目（10872071,50973035,50903033）;国家科技支撑计划项目课题（2009BA184805,2009BA1841306）;广州市科技计划项目（200722-D9151）;中央高校基本科研业务费（2009ZM0317）

摘　　要：采用差示扫描量热法（DSC）研究了纯聚丙烯（PP）及PP／棉秆皮纤维复合材料的非等温结晶行为；研究了不同棉秆皮纤维含量对PP!棉秆皮纤维复合材料结晶行为的影响；并分别采用Avrami模型、Ozawa模型和Mo模型描述了PP!棉秆皮纤维复合材料的非等温结晶动力学。结果表明：PP结晶速率随棉秆皮纤维含量的增加而提高；棉秆皮纤维的存在提高了PP的结晶度，纤维含量对结晶度的影响较小。Avrami和Mo模型能够较好描述PP/棉秆皮纤维复合材料的非等温结晶动力学过程，而Ozawa模型则不适合。The non-isothermal crystallization behavior of neat polypropylene （PP） and polypropylene/ cotton stalk bast fibers （PP/CSBF） composites were investigated by DSC under different cooling rates. The effect of CSBF content on the non-isothermal crystallization of PP was studied. Furthermore, the Avrami mod-el, Ozawa model and Mo model were adopted to analyze the non-isothermal crystallization kinetics. The re-suits showed that the crystallization rate of PP increased with the increase of CSBF content, and the incorpora-tion of CSBF enhanced the crystallinity of PP. The Ozawa model failed to describe the crystalhzation behavior of PP/CSBF composites, while the Avrami model and Mo model were found applicable.

关 键 词：聚丙烯 棉秆皮纤维 复合材料 非等温结晶 

分 类 号：TQ325.14[化学工程—合成树脂塑料工业]