高密度聚乙烯/丙烯-乙烯无规共聚物/碳纳米管复合材料的制备与性能研究  

Preparation and properties of high-density polyethylene/propylene-ethylene random copolymers/carbon nanotube composites

作　　者：王康 李祎 Wang Kang;Li Yi(Jilin Jianzhu University)

机构地区：[1]吉林建筑大学

出　　处：《塑料包装》2025年第1期43-48,共6页Plastics Packaging

基　　金：吉林省科技发展计划项目(20240304090SF)资助。

摘　　要：本文运用熔融共混法制备不同碳纳米管(CNT)含量的高密度(HDPE)/丙烯-乙烯无规共聚物(PEC)/CNT复合材料。研究结果显示,HDPE/PEC是不相容体系,CNT选择性分散在HDPE基体中。当CNT含量增加时,复合材料的结晶度出现先上升后下降趋势。与HDPE/PEC共混物相比,HDPE/PEC/CNT复合材料的屈服强度、杨氏模量及断裂强度提高,而断裂伸长率降低。此外,导热系数随CNT含量的增加而增大。In this paper,high-density polyethylene(HDPE)/propylene-ethylene random copolymers(PEC)/carbon nanotubes(CNTs)composites with different CNT contents were prepared by using the melt blending technique.The results showed that HDPE/PEC was immiscible,and CNTs were selectively located in HDPE matrix.As the CNT content was increased,the crystallinity of the composites increased and then decreased.Yield strength,Young's modulus and breaking strength of the composites increased compare with HDPE/PEC blend,while the elongation at break decreased.Moreover,the thermal conductivity of the composites increased with increasing CNT content.

关 键 词：碳纳米管 高密度聚乙烯 复合材料 力学性能 

分 类 号：TB3[一般工业技术—材料科学与工程]