增容对回收PET/PP共混物的结晶与熔融行为的影响  

Effect of Compatibilization on Crystallization and Melting Behavior of Recycled Poly(ethylene terephthalate) and Polypropylene Blends

作　　者：王春广[1] 林劲新[1] 章自寿[1] 麦堪成[1] 

机构地区：[1]中山大学化学与化学工程学院材料科学研究所//聚合物基复合材料及功能材料教育部重点实验室//新型聚合物材料设计合成与应用广东省高校重点实验室,广东广州501275

出　　处：《中山大学学报（自然科学版）》2012年第5期1-6,共6页Acta Scientiarum Naturalium Universitatis Sunyatseni

基　　金：广东省重大科技专项资助项目(2010A080804021)

摘　　要：制备了不同相容剂增容回收PET/PP共混物,用DSC方法研究了相容剂对r-PET结晶与熔融行为的影响,r-PET对PP结晶与熔融行为的影响和相容剂对r-PET/PP共混物结晶与熔融行为的影响,观察到PP结晶温度随着r-PET含量增加而提高,r-PET结晶温度随着PP含量增加而降低,相容剂加入明显降低共混物中r-PET结晶温度,但不同相容剂对共混物中r-PET结晶与熔融行为影响不大,共混物中PP结晶性能与相容剂的大分子链有关。The recycled poly （ethylene terephthalate） /polypropylene （rPET/PP） blends were prepared with different compatibilizers. The differential scanning calorimetry （DSC） was used to investigate the effect of compatibilizers on crystallization and melting behavior of rPET, the effect of rPET on crys tallization and melting behavior of PP and the effect of compatibilizers on crystallization and melting be havior of rPET/PP blends. The results indicated that the crystallization temperatures of PP increased with increasing rPET contents and the crystallization temperatures of rPET decreased with increasing PP contents. Addition of compatibilizers significantly decreased the crystallization temperatures of neat rPET and rPET component in the blends. However , the different compatibilizers had no influence on the crys tallization and melting behavior of blends and the crystallization behavior of PP in the blends depend on the kinds of compatibilizers.

关 键 词：聚丙烯 回收PET 相容剂 结晶与熔融行为 

分 类 号：O631.3[理学—高分子化学]