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首页> 外文期刊>Polymer: The International Journal for the Science and Technology of Polymers >The development and characterisation of polyaniline-single walled carbon nanotube composite fibres using 2-acrylamido-2-methyl-1-propane sulfonic acid (AMPSA) through one step wet spinning process
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The development and characterisation of polyaniline-single walled carbon nanotube composite fibres using 2-acrylamido-2-methyl-1-propane sulfonic acid (AMPSA) through one step wet spinning process

机译：一步湿法纺制2-丙烯酰胺基-2-甲基-1-丙烷磺酸（AMPSA）制备聚苯胺单壁碳纳米管复合纤维及其表征

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摘要

High strength, flexible and conductive polyaniline (PANi)-carbon nanotube (SWNT) composite fibres have been produced using wet spinning. The use of dichloroacetic acid (DCAA) containing 2-acrylamido-2-methyl-1-propane sulfortic acid (AMPSA) has been shown to act as an excellent dispersing medium for carbon nanotubes and for dissolution of polyaniline. The viscosity of DCAA-AMPSA solution undergoes a transition from Newtonian to non-Newtonian viscoelastic behaviour upon addition of carbon nanotubes. The ultimate tensile strength and elastic modulus of PANi-AMPSA fibres were increased by 50 and 120%, respectively, upon addition of 0.76% (w/w) carbon nanotubes. The elongation at break decreased from 11 to 4% upon addition of carbon nanotubes, however, reasonable flexibility was retained. An electronic conductivity percolation threshold of similar to 0.3% (w/w) carbon nanotubes was determined with fibres possessing electronic conductivity up to similar to 750 S cm(-1). Raman spectroscopic evidence confirmed the presence of carbon nanotubes in the polyaniline and also the interaction of the quinoid ring with the nanotubes to provide a doping effect. (c) 2006 Elsevier Ltd. All rights reserved.
机译：高强度，柔性和导电性的聚苯胺（PANi）-碳纳米管（SWNT）复合纤维已经通过湿法纺丝生产。已显示出使用含有2-丙烯酰胺基-2-甲基-1-丙烷磺酸（AMPSA）的二氯乙酸（DCAA）作为碳纳米管和聚苯胺溶解的优良分散介质。添加碳纳米管后，DCAA-AMPSA溶液的粘度经历了从牛顿向非牛顿的粘弹性转变。加入0.76％（w / w）的碳纳米管后，PANi-AMPSA纤维的极限拉伸强度和弹性模量分别提高了50％和120％。添加碳纳米管后，断裂伸长率从11％降至4％，但是保留了合理的柔韧性。使用具有高达750 S cm（-1）的电子电导率的纤维测定了类似于0.3％（w / w）碳纳米管的电子电导率渗透阈值。拉曼光谱的证据证实了聚苯胺中存在碳纳米管，并且醌环与纳米管的相互作用也提供了掺杂作用。 （c）2006 Elsevier Ltd.保留所有权利。

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