镍/铜/镍-碳纳米管复合纱线的制备及其性能  

Preparation and properties of Ni/Cu/Ni-carbon nanotube composite yarns

作　　者：赵方 邵光伟[1,2] 邵慧奇 毕思伊 李明昊 海文清 张鑫 姜子洋 蒋金华[1,2] 陈南梁[1,2] ZHAO Fang;SHAO Guangwei;SHAO Huiqi;BI Siyi;LI Minghao;HAI Wenqing;ZHANG Xin;JIANG Ziyang;JIANG Jinhua;CHEN Nanliang(Engineering Research Center of Technical Textiles,Ministry of Education,Donghua University,Shanghai 201620,China;College of Textiles,Donghua University,Shanghai 201620,China;Innovation Center for Textile Science and Technology,Donghua University,Shanghai 201620,China)

机构地区：[1]东华大学产业用纺织品教育部工程研究中心,上海201620 [2]东华大学纺织学院,上海201620 [3]东华大学纺织科技创新中心,上海201620

出　　处：《纺织学报》2024年第12期144-151,共8页Journal of Textile Research

基　　金：中央高校基本科研业务费专项资金资助项目(22D128102/007)。

摘　　要：为制备轻质高强高电导率材料,以碳纳米管(CNT)纱线为原料,通过化学沉积和电沉积技术制备了镍/铜/镍-碳纳米管(Ni/Cu/Ni-CNT)复合纱线,确定最优电沉积铜工艺,并系统分析复合纱线的形貌、力学性能及电学性能,通过模拟织针编织过程,对比复合纱线摩擦前后的性能,研究了镍界面层对复合纱线结构和性能的影响。结果表明:最优工艺制得的Ni/Cu/Ni-CNT复合纱线表面均匀细致、性能优异;与原始CNT纱线相比,在断裂强度基本保持不变(90%)的情况下,复合材料电导率提高了44倍;镍界面层能够有效增强Cu镀层的结合牢度,Ni/Cu/Ni-CNT复合纱线在100次模拟编织后仅有微米级裂痕,断裂强度和电导率分别保持91%和62%。Objective Metallized carbon nanotube(CNT)yarns are prepared and studied,which require the use of precious metals or complex processes to achieve satisfactory surface topography,resulting in high production costs.However,the mechanical properties of the metallized CNT yarns significantly are decreased while achieving the improved electrical conductivity.Therefore,it is necessary to find solutions that will enable metallized CNT yarns to have both satisfactory mechanical and electrical properties at low-cost.Method This paper employed chemical deposition and electrochemical deposition methods to deposit metals on the surface of CNT yarns.Nickel served as the interface layer and oxidation-resistant layer in the metallized CNT composite yarns,while copper acted as the conductive layer.By adjusting the process parameters,controlling the process flow and adjusting the structure of the composite yarns,we successfully prepared high-performance Ni/Cu/Ni-CNT composite yarns.This paper conducted tests and characterizations on the mechanical,electrical,and processing properties of the composite yarns and discussed the influence of the nickel interface layer on the mechanical and electrical properties of the composite yarns.Results The optimal electrochemical deposition was carried out at 5 mA/cm 2 for 180 min.The surface of the original CNT yarns exhibited prominent grooves,and the yarn surface was covered with metal,resulting in a significant reduction in the grooves after metal deposition.In the absence of a nickel interface layer,the surface of the composite yarn showed visible metal particles,with some copper loosely adsorbed onto the CNT yarns in the form of loose particles,leading to a rough and porous coating.However,with the presence of a nickel interface layer,the surface coating of the composite yarns became uniform and refined.The Ni/Cu/Ni-CNT composite yarns demonstrated a thicker coating compared to the Ni/Cu-CNT composite yarns without the nickel interface layer.However,the decrease in tensile strength of the N

关 键 词：复合纱线 导电材料 碳纳米管 表面金属化 界面增强 可编织性 电学性能 

分 类 号：TS102.6[轻工技术与工程—纺织工程]