rPET/mLLDP/EMAH-g-POE复合材料的制备及性能研究  

PREPARATION AND PROPERTY OF rPET/mLLDPE/MAH-g-POE BLENDS

作　　者：张华集[1] 许静[1] 陈晓[1] 张雯[1] 刘丽娟[1] 

机构地区：[1]福建师范大学化学与材料学院,福州350007

出　　处：《工程塑料应用》2010年第12期4-7,共4页Engineering Plastics Application

基　　金：福建省科技厅资助项目(2009H0017)

摘　　要：以回收聚对苯二甲酸乙二酯(rPET)瓶料为基体材料,茂金属线性低密度聚乙烯(mLLDPE)为增韧材料,马来酸酐接枝(乙烯/辛烯)共聚物(MAH-g-POE)为增容剂,制得rPET/mLLDPE/MAH-g-POE复合材料。研究表明,mLLDPE的加入使得rPET的结晶温度提高,与纯rPET相比,含质量分数5%MAH-g-POE的rPET/mLLDPE/MAH-g-POE复合材料的结晶温度提高24.39℃,缺口冲击强度提高216.6%,断裂伸长率提高14.54倍;MAH-g-POE使rPET/mLLDPE中rPET的玻璃化转变温度向低温方向移动,rPET与mLLDPE的相容性提高,界面粘结力增强,熔融塑化时的扭矩增大。The rPET/mLLDPE/MAH-g-POE blends were prepared by using maleic anhydride grafted polyolefin （MAH-g- POE） as compatibilizer, rPET as matrix material, mLLDPE as toughener. The crystallization temperature of the rPET increased with the addition of mLLDPE. With 5% MAH-g-POE in rPET/mLLDPE blends, compared with rPET, the crystallization temperature was increased by 24.39℃, impact strength was increased by 216.6% , and elongation at break was improved by 14.54 times, respective- ly. With the increase of compatibilizer, the Tg of rPET shifted to lower temperature, the compatibility, the interaction of rPET and mLLDPE and the torque properties of rPET/mLLDPE blends were improved.

关 键 词：回收聚对苯二甲酸乙二酯 茂金属线性低密度聚乙烯 马来酸酐接枝(乙烯/辛烯)共聚物 

分 类 号：TQ325.12[化学工程—合成树脂塑料工业]