石墨烯/聚丙烯复合材料的等温结晶动力学研究OA北大核心CSTPCD
Study on Isothermal Crystallization Kinetics of PP/Reduced Graphene Oxide Composites
采用差示扫描量热仪(DSC)研究了石墨烯(RGO)/聚丙烯(PP)复合材料的等温结晶行为.结果表明:对于纯PP和RGO/PP复合材料,结晶温度(Tc)的提高将导致结晶速率(G1/2)变慢、绝对结晶度(Xc)提高; PP和RGO/PP复合材料的等温结晶在相当大的范围内符合Avrami方程;同纯PP相比,RGO/PP复合材料的G1/2相对增加,而结晶活化能相对减小,这意味着RGO对PP起到了外加成核剂的作用,促进了PP的结晶.
The isothermal crystallization behavior of reduced graphene oxide(RGO)/polypropylene(PP)composites were investigated by differential scaning calorimetry(DSC).The results show that: the crystallization time extends and the absolute crystallization degree improves for both pure PP and RGO/PP with the increase of crystallization temperature.Avrami equation is valid for analyzing the isothermal crystallization of pure PP and RGO/PP within a wide range.The crysta…查看全部>>
杨旭宇;陈建文
湖北汽车工业学院材料工程系,湖北十堰420000湖北汽车工业学院材料工程系,湖北十堰420000
化学化工
聚丙烯石墨烯复合材料等温结晶结晶动力学
PPReduced graphene oxideCompositesIsothermal crystallizationCrystallization kinetics
《塑料科技》 2012 (10)
36-39,4
湖北省教育厅(B2011802)
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