聚丙烯/木粉复合材料的制备及性能  

Preparation and properties of polypropylene/wood flour composites

作　　者：洪浩群[1,2] 刘凯丽 于日志 李雪松 岑兰[1,2] 张海燕[1,2] Hong Haoqun;Liu Kaili;Yu Rizhi;Li Xuesong;Cen Lan;Zhang Haiyan(School of Materials and Energy,Guangdong University of Technology,Guangzhou 510006,China;Guangdong Sunlite Science&Technology Co.,Ltd.,Dongguan 523040,China)

机构地区：[1]广东工业大学材料与能源学院,广东广州510006 [2]广东信力科技股份有限公司,广东东莞523040

出　　处：《合成树脂及塑料》2024年第5期11-16,共6页China Synthetic Resin and Plastics

基　　金：东莞市引进创新科研团队项目(202006072-12008)。

摘　　要：分别采用聚丙烯的固相接枝共聚物和熔融接枝共聚物作为聚丙烯/木粉复合材料的界面改性剂,研究两种多单体接枝共聚物用量对复合材料界面结构、拉伸性能、弯曲性能、抗冲击性能等的影响,并根据拉伸性能数据计算复合材料的界面黏结强度。结果表明:两种多单体接枝共聚物均能有效地提高复合材料的力学性能,并维持良好的热稳定性;随多单体接枝共聚物用量的增加,复合材料的力学性能提高,当多单体接枝共聚物用量为5 phr时,复合材料的界面相容性较稳定,力学性能最佳,界面黏结强度参数从2.56升至3.50以上,表明复合材料具有较强的界面黏结强度。The solid phase grafted copolymers and melting grafted copolymers of polypropylene were used as the interface modifiers of polypropylene/wood flour composites respectively to investigate the influence of amount of graft copolymers on the interface structure,tensile properties,flexural properties and impact properties of polypropylene/wood flour composites.The interfacial bonding strength of the composites was calculated according to the tensile properties.The results show that both multi-monomer grafted copolymers effectively improve the mechanical properties of the composites and maintain the thermal stability of the composites.The mechanical properties of the composites are increased with the increase of multi-monomer graft copolymers.The interfacial compatibility of the composites is more stable and the mechanical properties are the best when the loading of multi-monomer grafted copolymers is 5 phr.The parameter of the interfacial bonding strength is increased from 2.56 to more than 3.50,indicating that the interfacial bonding strength of the composites is high.

关 键 词：聚丙烯 木粉 力学性能 界面相容性 接枝共聚物 

分 类 号：TQ327.8[化学工程—合成树脂塑料工业]