氧化石墨烯的功能化改性及其对聚丙烯非等温结晶行为的影响  

Functional Modification of Graphene Oxide and Its Effect on the Nonisothermal Crystallization Behaviors of Polypropylene

作　　者：郝艳萍[1] 刘娜[1] 赵昕[1] 张清华[1] 

机构地区：[1]东华大学材料科学与工程学院,纤维材料改性国家重点实验室,上海201620

出　　处：《塑料工业》2016年第5期96-100,共5页China Plastics Industry

基　　金：国家自然科学基金资助项目(51233001);科技部973计划(2014CB643603)

摘　　要：通过十八烷基异氰酸酯对氧化石墨烯(GO)进行功能化改性,成功制备了烷基化改性石墨烯(iGO)。通过溶液共混的方式制备了氧化石墨烯/聚丙烯(GO/PP)复合材料和功能化氧化石墨烯/聚丙烯(iGO/PP)复合材料,利用差示扫描量热仪(DSC)分析了iGO/PP和GO/PP复合材料的非等温结晶动力学。结果表明,与GO相比,iGO和PP基体有更好的相容性。采用Ozawa模型和Mo模型均可以很好地描述GO/PP及iGO/PP复合材料的非等温结晶过程。The isocyanate-treated graphene oxides （iGO） were successfully fabricated by graftingoctadecyl isocyanate onto the surface of graphene oxides （GO） with isoeyanicacid octadecyl ester. Thegraphene oxide/polypropylene （GO/PP） and the functional graphene oxide/polypropylene （iGO/PP）composite materials were prepared by solution blending method. The nonisothermal crystallization kinetics ofiGO/PP and GO/PP composites were investigated by differential scanning calorimeter （DSC）. The resultsshow that iGO exhibits a better compatibility with the PP matrix compared with GO. Both Ozawa model andMo model can well describe the nonisothermal crystallization process for GO/PP and iGO/PP composites.

关 键 词：聚丙烯 功能化石墨烯 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]