高密度聚乙烯(HDPE)薄膜的光接枝改性  

SURFACE GRAFT POLYMERIZATION OF HIGH DENSITY POLYETHYLENE FILM BY UV IRRADIATION

作　　者：韦亚兵[1] 钱翼清[1] 

机构地区：[1]南京化工大学高分子系

出　　处：《南京化工学院学报》1998年第1期20-23,共4页

基　　金：江苏省应用基础研究基金

摘　　要：在氮气保护、紫外光照射下，以二苯甲酮为光引发剂，丙烯酸在ＨＤＰＥ薄膜表面的光接枝聚合改性。探讨了光照时间、单体浓度、单体种类、溶剂种类等反应条件对接枝效果的影响。用红外光谱、水接触角和染色程度表征接枝效果，水接触角由８０°降至３４．４°，染色程度增加约９９倍。结果表明，表面光接枝改性对薄膜本体的力学性能没有影响。Graft polymerization of acrylic acid (AA) was performed into the surface of a PET film under ultraviolet light irradiation with benzophenone as photoinitiator after removing oxygen with nitrogen. The influence of various factors, irradiation time, the type of monomer and solvents, and concentration of AA monomer, on the graft polymerization were studied. The success of graft polymerization was characterized by Infrared spectroscopy. The water contact angle determination proves that the hydrophilicity of surface grafted HDPE film was greatly improved. The water contact angle of HDPE film was 80 degree before treated and decreased to 34.4 degree after photografting. The dying determination proves that the dyealility of surface grafted HDPE film was greatly improved, too.

关 键 词：聚乙烯薄膜 表面改性 高密度 HDPE 光接枝 

分 类 号：TQ325.12[化学工程—合成树脂塑料工业]