多壁碳纳米管/聚(丙三醇-癸二酸-柠檬酸)酯弹性体复合材料的制备与性能研究  

Preparation and properties of MWCNT/poly(glycerol-sebacate-citrate) elastomer composite

作　　者：吴珺玥[1] 刘全勇[1] 石锐[1] 雷丽娟[1] 张立群[1,2] 

机构地区：[1]北京化工大学北京市新型高分子材料制备与加工重点实验室,北京100029 [2]北京化工大学纳米材料先进制备技术与应用科学教育部重点实验室,北京100029

出　　处：《橡胶工业》2009年第11期670-674,共5页China Rubber Industry

摘　　要：采用熔融共缩聚反应法合成聚(丙三醇-癸二酸-柠檬酸)酯(PGSC)弹性体,再采用半原位聚合和研磨分散的方法制备多壁碳纳米管(MWCNT)/PGSC复合材料,并对复合材料的性能进行研究。结果表明,MWCNT对PG-SC的玻璃化温度影响不大;随着MWCNT用量的增大,MWCNT/PGSC复合材料的弹性模量和拉伸强度总体增大,溶胀度和吸水率逐渐减小;当MWCNT用量达到或超过1份时,与PGSC相比,MWCNT/PGSC复合材料的弹性模量和拉伸强度较大,降解速率较小。A poly（glycerol-sebacate-citrate）（PGSC） elastomer was synthesized by melting copolycondensation,then a MWCNT/PGSC composite was prepared by semi-in-situ polymerization and grinding dispersion method,and the properties of composite were investigated.The results showed that the MWCNT had little effect on the glass transition temperature of PGSC;as the addition level of MWCNT increased,the elastic modulus and tensile strength of MWCNT/PGSC composite increased,the swelling degree and water absorption decreased;when the addition level of MWCNT reached or exceeded 1 phr,the elastic modulus and tensile strength of MWCNT/PGSC composite were higher than those of PGSC,and the degradation rate was lower.

关 键 词：聚(丙三醇-癸二酸-柠檬酸)酯弹性体 多壁碳纳米管 复合材料 生物降解 

分 类 号：TQ334.1[化学工程—橡胶工业] TQ330.383