低能电子束预辐射接枝LDPE膜的力学性能及热性能  

Mechanical Properties and Thermal Performance of LDPE Membrane Grafted by Low Energy Electron Beam Pre-Irradiation

作　　者：徐国亮[1] 缪培凯[1] 赵春娥[1] 曾科[1] 王宜鹏[1] 杨刚[1] 

机构地区：[1]四川大学高分子学院-NHVC电子线应用研究中心,四川大学高分子科学与工程学院,高分子材料工程国家重点实验室,四川成都610065

出　　处：《高分子材料科学与工程》2010年第5期85-88,共4页Polymer Materials Science & Engineering

基　　金：日本NHV Corporation资助项目(07H814)

摘　　要：在氮气氛围中,采用低能电子束预辐射接枝法,在低密度聚乙烯(LDPE)薄膜上接枝对苯乙烯磺酸钠(SSS),研究了SSS浓度、辐射剂量和接枝时间与接枝率的关系,并得到最佳接枝条件:SSS浓度为0.8mol/L、辐射剂量为60kGy、接枝时间为18h。IR结果表明,LDPE膜表面已接上SSS。拉伸测试及TGA、DSC分析结果表明,相比于空白LDPE膜,接枝膜可保持较好的力学性能和热性能。The functional study of common plastics has been widespread concerned. In this paper,LDPE membrane was grafted with sodium styrene sulfonate （SSS） using low energy electron beam pre-irradiation under nitrogen atmosphere. The relationships of grafting ratio and grafting conditions such as SSS concentration,irradiation dose,reaction time,were inverstigated and the optimal grafting conditions： SSS concentration of 0.8 mol/L,irradiation dose of 60 kGy,grafting time of 18 hours. Infrared spectra（IR） indicates that SSS is grafted onto LDPE successfully. The results of tensile measurement,thermogravimetric anslysis（TGA） and differential scanning calormetry（DSC） show that the grafted LDPE membrane can retain excellent mechanical properties and thermal performance compared to the non-grafted LDPE membrane.

关 键 词：低密度聚乙烯 低能电子束 预辐射接枝 力学性能 热性能 

分 类 号：TQ316.343[化学工程—高聚物工业]