多壁碳纳米管对PCL结晶行为的影响  

Effect of multi-walled carbon nanotube on crystallization behavior of PCL film

作　　者：邓刚[1] 华成武[1] 遆永周[1] 孟闯[1] 何领好[2] 董明静[1] 

机构地区：[1]河南省科学院同位素研究所有限责任公司,河南郑州450015 [2]郑州轻工业学院,河南郑州450002

出　　处：《合成树脂及塑料》2010年第6期17-20,共4页China Synthetic Resin and Plastics

摘　　要：通过溶液法制备了聚己内酯(PCL)和PCL/多壁碳纳米管(MWCNT)薄膜,研究了不同结晶温度下PCL的结晶形态及MWCNT对PCL结晶的影响。利用扫描电子显微镜、原子力显微镜从微观层次研究了球晶环带形成的机理。结果表明,存20～50℃可通过溶液结晶得到PCL环带球晶,加入MWCNT使形成环带结构的温度向高温方向拓宽。The authors prepared cast film of poly（ε-caprolactone）（PCL） and PCL/muhi-walled carbon nanotube （MWCNT） with solution process, and studied crystal morphology of PCL and the effect of MWCNT on the morphology at different crystallization temperatures. The formation mechanism of the ring-banded structure was explored in the light of microstructure by means of scanning electron microscope（SEM） and atomic force microscope（AFM）. The results indicate that ring-banded spherulites of PCL can grow through solution crystallization at 20-50 ℃; the addition of MWCNT apparently makes the temperature range for forming ring-banded structure widens towards the high end direction of the range.

关 键 词：聚己内酯 环带球晶 碳纳米管 薄膜 可降解高分子 

分 类 号：O631.13[理学—高分子化学]