含碳酸钙与光敏剂的LDPE膜光氧降解研究  

STUDY ON PHOTOOXIDATION DEGARDATION OF LDPE FILM CONTAINING CaCO_3 AND PHOTOSENSITIZER

作　　者：林宜超 

机构地区：[1]福建省测试技术研究所,福州350003

出　　处：《现代塑料加工应用》2000年第6期7-10,共4页Modern Plastics Processing and Applications

摘　　要：研究了含超细碳酸钙 (CaCO3 )、硬脂酸铁 (FeSt3 ) [或二正丁基二硫代氨基甲酸铁 (FeDBC) /二正丁基二硫代氨基甲酸镍(NiDBC)光敏剂 ]的低密度聚乙烯 (LDPE)膜的光氧降解羰基指数 (CI)和粘均相对分子质量 ( Mη)的变化。结果表明 ,在LDPE膜中加入 10 %～ 2 0 %CaCO3 和 0 1%～ 0 3%FeSt3 或 0 0 5%～ 0 .2 0 %FeDBC/NiDBC 。The changes of carbonyl index( CI ) and viscosity average molecular weight ( η)of low density polyethylene (LDPE) film containing superfine CaCO\-3 and ferric stearate (FsSt\-3),or ferric N,N-dibuty dithiocarbamate (FeDBC)/nickel N,N-dibuty dithiocarbamate (NiDBC) photosensitizer during photooxidation degradation have been studied. The results have shown that the lifetime of LDPE film under natural exposure conditions could be controlled by adding 10%～20% CaCO\-3 and 0.1%～0.3% FeSt\-3 or 0.05%～0.20% FeDBC/NiDBC to the LDPE film.

关 键 词：碳酸钙 光敏剂 光降解 低密度聚乙烯 塑料薄膜 

分 类 号：TQ325.12[化学工程—合成树脂塑料工业]