HDPE/SEBS高分子合金材料制备及其性能研究  

Preparation and Properties of HDPE/SEBS Polymer Alloy Materials

作　　者：解小玲 王瑞聪[1] 陈辉 王康 田林海 林万明 Xie Xiaoling;Wang Ruicong;Chen Hui;Wang Kang;Tian Linhai;Lin Wanming(College of New Energy and Materials Engineering,Shanxi University of Electronic Science and Technology,Shanxi,041000;College of Materials Science and Engineering,Taiyuan University of Technology,Shanxi,030024)

机构地区：[1]山西电子科技学院新能源与材料工程学院,山西041000 [2]太原理工大学材料科学与工程学院,山西030024

出　　处：《当代化工研究》2025年第3期182-184,共3页Modern Chemical Research

基　　金：山西电子科技学院(筹)人才引进科研启动基金项目“复合材料制备及性能研究”(项目编号:2023RKJ004);临汾市重点研发计划项目基金项目“增熵SEBS/HDPE高分子合金节能塑料管材”(项目编号:2333)。

摘　　要：采用双螺杆挤出机熔融共混制备了HDPE/SEBS高分子合金材料,研究了SEBS含量对HDPE/SEBS合金材料的力学性能、耐热性、结晶性能、微观形貌的影响。实验结果表明,随着SEBS含量的增加,合金材料的结晶温度和熔融温度都有下降趋势,缺口冲击强度逐渐增大,拉伸强度和弹性模量减小,当SEBS含量为12%时,冲击强度达到31.56 kJ/m^(2),提高了61.3%;弹性模量降低至612.6 MPa,降低了18.4%。断裂形貌显示SEBS在HDPE基体中有良好的分散性,HDPE/SEBS高分子合金材料呈韧性断裂。HDPE/SEBS polymer alloy materials were prepared by melt blending using a twin-screw extruder,and the influence of SEBS content on the mechanical properties,heat resistance,crystallization properties,and microstructure of HDPE/SEBS alloy materials was studied.The experimental results show that with the increase of SEBS content,the crystallization temperature and melting temperature of the alloy material have a decreasing trend,the notch impact strength gradually increases,and the tensile strength and elastic modulus decrease.When the SEBS content is 12%,the impact strength reaches 31.56 kJ/m^(2),an increase of 61.3%;The elastic modulus decreased to 612.6 MPa,a decrease of 18.4%.The fracture morphology shows that SEBS has good dispersibility in the HDPE matrix,and the HDPE/SEBS polymer alloy material exhibits ductile fracture.

关 键 词：高密度聚乙烯 合金材料 SEBS 力学性能 

分 类 号：TQ325.12[化学工程—合成树脂塑料工业]