光敏剂对mLLDPE薄膜光氧化降解性能的影响  

Effect of Photosensitizer on Photo-oxidation Degradation of mLLDPE Film

作　　者：李海龙[1] 管明章[1] 程凤梅[1] 李海东[1] 

机构地区：[1]长春工业大学化学工程学院

出　　处：《塑料科技》2011年第5期88-91,共4页Plastics Science and Technology

摘　　要：将不同光敏剂硬脂酸铁(FeSt)、硬脂酸钴(CoSt)和二乙基二硫代氨基甲酸铁(FeDEC)加入茂金属线型低密度聚乙烯(mLLDPE)中,分别吹塑成膜,将薄膜放入老化箱中考察其在紫外光下的降解规律。结果表明:mLLDPE的降解速度随着紫外光照射时间的延长而提高,光敏剂CoSt对mLLDPE薄膜的降解作用比FeSt和FeDEC效果好而,CoSt含量为0.3%时是降解速度最佳点。To add different photosensitizers,such as Ferric stearate（CoSt）,Cobalt stearate（CoSt） and Diethyl dithi-Ocarbamate iron（FeDEC） in mLLDPE,the mLLDPE film were blown,and the degradation laws of mLLDPE films into the aging chamber under UV light were investigated.The results show that： the degradation rate of mLLDPE film increases along with the increase of the UV irradiation time,and the degradation of mLLDPE film with photosensitive agent CoSt is better than FeSt and FeDEC;the CoSt content of 0.3% is the best value.

关 键 词：光敏剂 茂金属线型低密度聚乙烯 光氧化降解 交联 凝胶 

分 类 号：TQ325.12[化学工程—合成树脂塑料工业]