用于输液袋内层EAA/PP共混物的研究  

Study on EAA/PP Blend in the Inner Layer of Infusion Bag for High Frequency Welding

作　　者：杜程 魏芳[1] 张玡珂 李昂 陈弦[1] Du Cheng;Wei Fang;Zhang Yake;Li Ang;Chen Xian(College of Polymer Science and Engineering,Sichuan University,Chengdu,Sichuan,610064)

机构地区：[1]四川大学高分子科学与工程学院

出　　处：《现代塑料加工应用》2019年第4期5-8,共4页Modern Plastics Processing and Applications

摘　　要：制备了不同配比的乙烯丙烯酸共聚物(EAA)/聚丙烯(PP)共混物,作为三层共挤输液袋内层材料。对材料的介电性能、热性能、力学性能等进行了分析。研究发现EAA添加到PP当中可以提高材料的介电常数,当EAA质量分数为30%的时候,介电常数可以达到4.5,拉伸强度可以达到20.22 MPa,维卡软化温度为121.8℃,同时60 s的焊接剥离强度可以达到44.20 N,基本满足了作为输液袋内层材料的使用条件。The dielectric,thermal and mechanical properties of the three-layer co-extrusion infusion bag were analyzed by using EAA/PP of different proportions as the inner material of the three-layer co-extrusion infusion bag.It is found that the dielectric constant of the material can be increased by adding EAA to PP.When the content of EAA is 30%,the dielectric constant can reach 4.5,and the tensile strength can reach 20.22 MPa,and the Vicat softening temperature is 121.8℃.At the same time,the welding peeling strength of 60 s can reach 44.20 N,which basically meets the requirements as infusion bag inner materials.

关 键 词：高频焊接 输液袋内层 乙烯丙烯酸共聚物 聚丙烯 

分 类 号：TQ3[化学工程]