新型光降解体系对光/生物降解薄膜光降解行为的影响  

Effect of New Type of Photo-sensitizer & Antioxidant System on the Degradation of Photo-biodegradable Films

作　　者：陈建华[1] 王鹏[1] 孟令辉[2] 舒静[1] 郑彤[1] 赵宝秀[1] 

机构地区：[1]哈尔滨工业大学市政环境工程学院绿色化学与技术研究中心,黑龙江哈尔滨150090 [2]哈尔滨工业大学应用化学系,黑龙江哈尔滨150001

出　　处：《塑料科技》2005年第1期5-8,共4页Plastics Science and Technology

摘　　要：研究了由光敏剂硬脂酸铁和抗氧剂 10 76组成的光降解体系的光 /生物双降解聚乙烯薄膜在紫外灯辐照下的断裂伸长率保留率、分子量、脆化期、诱导期等的变化规律。结果表明 ,硬脂酸铁具有促进光降解和抑制交联的双重作用 ;抗氧剂 10 76对薄膜光降解作用的影响没有硬脂酸铁显著 ;由它们组成的光降解体系具有较好的时控光降解效应 。It studied reserved elongation at break, molecular weight, induction period and embrittlement time of photo-biodegradable PE films with various amounts of photosensitizer Fe(St)_3 and antioxidant1076. The results indicated that Fe(St)_3 could accelerate photo-degradation and restrain crosslinking, the effects of antioxidant1076 on films' photo-degradation was weaker than on Fe(St)_3; every light-degradation system had obvious time-controlled effect and could obviously influence the induction period.

关 键 词：硬脂酸 抗氧剂1076 光降解 新型 诱导期 薄膜 组成 影响 行为 光敏剂 

分 类 号：TQ320.7[化学工程—合成树脂塑料工业]