Fabrications conductive textile

By using an aqueous chemical growth method, as described earlier, ZnO nanoneedles were grown on a commercially available conductive textile fabric (ArgenMesh ... 

Khan A, Hussain M, Nur O, Willander M. Mechanical and piezoelectric properties of zinc oxide nanorods grown on conductive textile fabric as an alternative substrate. J Phys D Appl Phys 2014 47(34) 345102. 

One of the most widely used approaches for fabricating electrically conductive textiles from intractable ICPs is to use an in situ approach to polymerize a submicron thick coating of an ICP onto an existing textile substrate. In this in situ polymerization technique, the fabric is immersed in a solution containing the ICP monomer, an oxidant, and the desired dopant anion. This process is industrially applicable because it can be performed using standard textile dyeing equipment using aqueous solutions for both aniline and pyrrole. 

In contrast, the in situ polymerization approach for depositing an intractable ICP, such as polypyrrole, onto an existing textile substrate has still been the most effective approach for fabricating electrically conductive textiles from these intractable ICPs. This technique has been successfiilly converted from laboratory into commercial production for producing large quantities of these textiles using a relatively inexpensive aqueous-based process. 

The reaction time is an important factor to determine the final properties of the conductive textile obtained with chemical polymerization process. So in this woik, the effect of reaction time using to prepare PPy coated Lycia/Polyester fabric pretieated using in situ chemical oxidation process has been investigated. 

Most recently Beaupre et al. developed a flexible electrochromic device using textile in 2006 [71]. The structure is made with a transparent electrode, covered with spray-coated electrochromic polymer, a gel electrolyte and finally with a conductive textile. The textile electrode is made with a textile fabric coated with copper and nickel. The other electrode is made of glass or polyester (PET) coated with ITO. Two electrochromic conductive polymers have been tested. Similar colours and colour changes are obtained for structures using two PET-ITO electrodes, or two glass-ITO electrodes, or one textile electrode with one PET-ITO electrode. The colour change is visible but slow. When a plastic electrode and a textile electrode are used, the structure is flexible. A similar structure, using a copper-coated textile cathode, was described by Zhan et al. in 2013 [72]. 

In 2011 Molina et al. described the electrochromic properties of a polyaniline-impregnated textile fabric for the first time [73]. Immersed in an electrolytic bath and connected to a power supply, the fabric displays a visible colour change, from light green at — 1 V to dark green at +2 V. However, the aim of their study is the development of a conducting textile, and the electrochromic property is considered as secondary and was not exploited any further. 

Figure 10.2 Comparison between differrait conductive textiles (1) embedded metal threads (Ouyang and Chappell, 2008) (2) metallized textUes/fabrics (Bashir et al., 2009) (3) conductive threads (Kim et al., 2008) (4) commercial conductive textiles (www.lessemf.com/ fabric.html) and (5) embroidered metal-coated polymer fibers (E-fibers) (Wang et al., 2012b).

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