Abstract:

Owing to the fact the electroconductive coating by traditional coating method tends to drop, this study proposed a dissolving-coating method for preparetion of coated electroconductive fibers, in which the coating liquid was prepared by dispersing polyaniline (PANI) in the formic acid aqueous solution and then evenly applied on the surface of polycaprolactam (PA6) fibers with specially designed equipment. After untrasonic washing, PANI/ PA6 fibers were obtained and woven weftwise into the substrate fabric at a space of 20mm on a laboratory weaving machine. FT-IR, DSC, TG, water washing and heat treatment were employed to investigate the structure and properties of the PANI/ PA6 fibers. The results showed that PANI coating is difficult to peel off after the heating and washing treatment. In addition, PANI/ PA6 fibers doped by organic acid illustrate good electrical property and thermal stability.