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16 February 2004 Polyaniline-nanotube multifunctional fiber: capabilities toward the manufacturing of smart fabric
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Smart fabrics are those with electronic devices embedded in the material structure. Metallic fibres are not compatible with a comfortable fabric and flexible fibres with electronic capabilities are desired. Polyaniline (PANi) and carbon nanotubes (CNTs) show potential for application in different electronic devices such as conductive yarn, sensor, actuator, battery, capacitor and diode. The development of fibres from these materials can be considered as potentially useful for the manufacturing of smart fabric which embedded non metallic electronic devices. This paper describes the influence of CNT addition on the electronic, mechanical of PANi-CNT composite fibre which was fabricated by a wet spinning process. PANi(EB)-nanotube (SWNT, DWNT)- dimethyl propylene urea (DMPU) composite spinning solution have been prepared by an ex-situ process. The size distribution of nanotubes has been characterized by zeta sizer. Furthermore the rheological study has been conducted for optimization of PANi/CNT weight ratio to produce solutions with suitable fluidity for spinning process. In spite of the great impact of nanotubes on the mechanical and electrical properties of PANi composite fibre, the structure of the composite is far from ideal and it can be proposed that by proper ex-situ and in-situ solution preparation and processing techniques further improvements in properties are possible.
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Vahid Mottaghitalab, Geoffrey M. Spinks, and Gordon G. Wallace "Polyaniline-nanotube multifunctional fiber: capabilities toward the manufacturing of smart fabric", Proc. SPIE 5648, Smart Materials III, (16 February 2004);

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