MWNT-g-PBA的制备及对PVC的改性  

Preparation of MWNT-g-PBA and PVC Modified by MWNT-g-PBA

作　　者：许海燕[1] 王俊[2] 王凯[3] 袁雅丽[1] 

机构地区：[1]合肥师范学院化学化工系,安徽合肥230061 [2]合肥工业大学高分子科学与工程系,安徽合肥230009 [3]湖南大学机械与运载工程学院,湖南长沙410082

出　　处：《现代塑料加工应用》2011年第1期46-49,共4页Modern Plastics Processing and Applications

摘　　要：采用原子转移自由基聚合(ATRP)方法在多壁碳纳米管(MWNT)表面接枝聚丙烯酸丁酯(PBA),制备得到PBA接枝MWNT(MWNT-g-PBA),并以此对聚氯乙烯(PVC)行改性。红外光谱(FTIR)及射电子显微镜(TEM)分析结果表明,采用ATRP法成功地将PBA接枝到MWNT的表面。采用熔融共混法制备了PVC/MWNT-g-PBA复合材料,对其力学性能和耐热性能进行了研究。结果表明,MWNT-g-PBA可以显著提高复合材料的拉伸强度和冲击强度,同时复合材料的耐热性能并未受到较大影响。Polybutyl acrylate （PBA） was grafted onto the surfaces of multiwalled carbon nanotubes （MWNT） via atom transfer radical polymerization （ATRP）, and MWNT-g-PBA was obtained. The MWNT-g-PBA was applied to modify polyvinyl chloride （PVC）. Analysis results of FTIR spectra and transmission electron microscopy （TEM） indicate that PBA is grafted onto the surfaces of MWNT successfully. Then PVC/MWNT-g-PBA composites were prepared by melt blending method. The mechanical properties and thermal resistance of the composites were investigated, respectively. The results show that the tensile strength and impact strength of the composites are greatly enhanced by blending PVC and MWNT-g- PBA. Moreover, MWNT-g-PBA has little effect on the heat resistance of PVC .

关 键 词：聚氯乙烯 多壁碳纳米管 原子转移自由基聚合 增韧改性 

分 类 号：TQ325.3[化学工程—合成树脂塑料工业]