合成纤维

2018, v.47;No.350(04) 14-19+52

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高弹性聚氨酯导电纤维的制备及其性能研究
Preparation and Properties of Highly Elastic Polyurethane Conductive Fiber

常青;俞彬;段小超;杨通辉;黄涛;俞昊;
CHANG Qing;YU Bin;DUAN Xiao-chao;YANG Tong-hui;HUANG Tao;YU Hao;College of Materials Science and Engineering, Donghua University;

摘要(Abstract):

通过后处理制得了高弹性多壁碳纳米管/聚氨酯(MWCNTs/PU)导电纤维,探讨了N,N-二甲基乙酰胺(DMAc)与乙醇的体积比及多壁碳纳米管的浓度对纤维的热稳定性、电学性能、力学性能、耐水洗性能、耐拉伸性能和传感性能等的影响。结果表明:该纤维的电导率可达到3 S/m;当纤维的伸长率为200%时,σ/σ_0约为5.5×10~(-3),仍具有良好的导电性;保持最大伸长率为200%,经过1 000次拉伸后电导率下降87%,具有良好的拉伸导电性能。此外,该纤维还具有良好的热稳定性、耐水洗性能、传感性能和力学性能。
MWCNTs/PU(MWNTs/polyurethane) fibers with high elasticity and conductivity were fabricatedthrough the postprocessing method. By varying the concentration of MWCNTs and the volume ration ofDMAc to ethanol, the themal stability, conductivity, mechanical properties, washable, tensile and sensingproperties were discussed. The results indicate that the conductivity of the fibers can reach 3 S/m. The σ/σ_0 is about 5.5×10~(-3) with the elongation of 200%, and it still has good conductivity. When the maximum elonga-tion is 200%, the conductivity decreases by 87% after 1 000 times stretching, which has good tensile con-ductivity. In addition, it has good thermal stability, washability, sensing and mechanical properties.

关键词(KeyWords): 导电纤维;聚氨酯;多壁碳纳米管;高弹性
conductive fiber;polyurethane;mutiwalled carbon nanotube;high elasticity

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基金项目(Foundation): 国家自然科学基金资助项目(51703024,51473034)

作者(Author): 常青;俞彬;段小超;杨通辉;黄涛;俞昊;
CHANG Qing;YU Bin;DUAN Xiao-chao;YANG Tong-hui;HUANG Tao;YU Hao;College of Materials Science and Engineering, Donghua University;

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