PA66／PA66功能化碳纳米管复合材料的制备及性能研究  

Preparation and Properties of PA66/PA66-Functionalized Carbon Nanotube Composites

作　　者：赵芸[1] 于辉[1] 孙喆[1] 矫庆泽[1,2] 黎汉生[1] 吴芹[1] ZHAO Yun1 YU Hui1 SUN Zhe1 JIAO Qing-ze1 2 LI Han-sheng1 WU Qin1 School of Chemical Engineering and the Environment Beijing Institute of Technology Beijing 100081 China; 2. School of Zhuhai

机构地区：[1]北京理工大学化工与环境学院,北京100081 [2]北京理工大学珠海学院,广东珠海519085

出　　处：《北京理工大学学报》2016年第10期1096-1100,共5页Transactions of Beijing Institute of Technology

摘　　要：以酸化的碳纳米管为原料,通过原位聚合在其表面接枝PA66得到PA66功能化碳纳米管(NF-CNTs),然后用溶液共混法将NF-CNTs与PA66混合制备了PA66/NF-CNTs复合材料,对比了碳纳米管功能化前后对于复合材料性能的影响.结果表明:NF-CNTs在复合材料中分散性更好;与PA66/CNTs复合材料相比,PA66/NFCNTs复合材料的体积电阻率更低,渗滤阈值从4%下降为3%;当NF-CNTs的添加量为2%时,PA66/NF-CNTs复合材料的初始失重温度达到最大值390℃,与纯PA66以及PA66/CNTs复合材料相比,分别提升了38℃和13℃.In this work, PA66-functionalized carbon nanotubes （NF-CNTs） were prepared by in situ polymerization. PA66/NF-CNT composites were obtained by mixing NF-CNTs and PA66. The thermal stability and electrical properties of PA66/NF-CNT composites and PA66/CNT composites were compared. Results show that, the dispersion of NF-CNTs in PA66 matrix is better than that of CNT, the volume resistivity of the PA66/NF-CNT composites is lower compared with PA66/CNTs composites, the percolation threshold is about 4% for PA66/CNT composites and 3% for PA66/NF-CNT composites, the thermal degradation of PA66/NF-CNT composites with 2% of NF-CNTs starts around 390℃, which is 38℃ and 13℃ higher than that of pure PA66 and PA66/CNT composites with 2%of unfunctionalized CNTs.

关 键 词：碳纳米管 功能化 PA66 复合材料 

分 类 号：TM911[电气工程—电力电子与电力传动]