拉伸形变作用下抗静电UHMWPE管材的高速制备及导电性能研究  

High Speed Preparation and Conductivity of Antistatic UHMWPE Pipe Under Tensile Deformation

作　　者：张晨 杨滢 周世骏 杨智韬 余吕宏 ZHANG Chen;YANG Ying;ZHOU Shi-jun;YANG Zhi-tao;YU Lü-hong(South China Branch,Sinopec Sales Co.,Ltd.,Guangzhou 510620,China;Guangzhou Huaxinke Intelligent Manufacturing Technology Co.,Ltd.,Guangzhou 510663,China)

机构地区：[1]中国石化销售股份有限公司华南分公司,广东广州510620 [2]广州华新科智造技术有限公司,广东广州510663

出　　处：《塑料工业》2020年第9期89-93,共5页China Plastics Industry

摘　　要：采用石墨烯协同导电炭黑的复合抗静电剂对超高分子量聚乙烯(UHMWPE)进行共混改性,并利用拉伸流变管材挤出机制备管材,研究了抗静电剂类型和用量对UHMWPE管材的导电性能、力学性能和耐磨性能的影响,以及对比在不同设备加工后,材料微观结构的差异。结果表明,添加1%石墨烯协同导电炭黑的体系中,当导电炭黑的添加量为4.0%时,UHMWPE抗静电复合材料不仅表面电阻率可降低至106Ω以下,而且其力学性能下降程度较小。同时实验表明采用拉伸流变管材挤出机可制备性能优异的抗静电UHMWPE管材。Ultra-high molecular weight polyethylene(UHMWPE)was blended and modified by graphene and conductive carbon black composite antistatic agent.And the tube was prepared by the equipment of drawing rheologic tube extruder.The effect of the type and amount of antistatic agent on the conductivity,physical mechanical properties and wear resistance of UHMWPE tube was studied,and the microstructure of the material was compared after processing in different equipments.The results show when the graphene content is 1%and conductive carbon black content is 4%,the surface resistivity of UHMWPE antistatic composite could reduce to less than 106Ω,and the physical and mechanical properties of UHMWPE antistatic composite could reduce to a small extent.At the same time,the experiment shows that the anti-static UHMWPE pipe with excellent properties can be prepared by the elongational rheology extruder(ERE).

关 键 词：超高分子量聚乙烯 导电炭黑 石墨烯 表面电阻率 拉伸流变挤出机 

分 类 号：TQ325.12[化学工程—合成树脂塑料工业]