碳纳米管对聚芳硫醚复合材料力学性能的影响  

The Influence of Carbon Nanotubes on Mechanical Properties of Polyarylene Sulfide Composite

作　　者：张守玉 杨家操 张刚[3,4] 王孝军 杨杰 陈同海[1,2] ZHANG Shouyu;YANG Jiacao;ZHANG Gang;WANG Xiaojun;YANG Jie;CHEN Tonghai(Nanjing Advanced Thermoplastic Composites Co.,Ltd.,Nanjing 210031,China;Jiangsu JITRI Advanced Polymer Materials Research Institute Co.,Ltd.,Nanjing 210031,China;Analysis and Testing Center,Sichuan University,Chengdu 610064,China;State Key Laboratory of Polymer Materials Engineering(Sichuan University),Chengdu 610065,China)

机构地区：[1]南京特塑复合材料有限公司,江苏南京210031 [2]江苏集萃先进高分子材料研究所有限公司,江苏南京210031 [3]四川大学分析测试中心,四川成都610064 [4]高分子材料工程国家重点实验室(四川大学),四川成都610065

出　　处：《塑料工业》2022年第3期30-34,共5页China Plastics Industry

摘　　要：通过超声辅助自然沉积的方式将碳纳米管(CNT)分散到纤维表面,制备得到了聚芳硫醚/玻纤布/CNT多级复合材料。采用扫描电子显微镜和力学性能对复合材料进行表征。结果显示,CNT的引入有助于纤维与树脂基体间的应力传递,复合材料的拉伸强度和弯曲强度分别提升18%和12%;表面活性剂十六烷基三甲基溴化铵的加入有助于CNT在纤维表面的均匀分散,减弱CNT团聚效应,降低了CNT团聚而引起的复合材料缺陷,提高了CNT对复合材料力学性能提升的效果。相较于无CNT体系,表面活性剂改性的复合材料拉伸强度和弯曲强度分别提升28%和21%。Carbon nanotubes(CNTs)were deposited on the surface of glass fiber cloth with the assistance of ultrasonic.Polyarylene sulfide/glass fabric(GFC)/CNTs multistage composite was prepared.The dispersion and mechanical properties were analyzed by scanning electron microscopy(SEM)and mechanical property testing.The introduction of CNTs could enhance the efficiency of stress transfer and promote the mechanical properties.The tensile strength and flexural strength of the composites increase 18%and 12%,respectively.Surfactant Cetyltrimethylammonium bromide(CTAB)could improve the dispersion of CNTs on the glass fiber surface,weaken the agglomeration of CNTs and the following defects in the composites.Comparing with the CNTs free system,the tensile strength and flexural strength of the composites modified with surfactants could increase 28%and 21%,respectively.

关 键 词：热塑性复合材料 碳纳米管 表面活性剂 

分 类 号：TB324[一般工业技术—材料科学与工程]