Development of Antistatic Resin Finishing Method for Fabrics and its Applications

제전성 수지가공법의 개발 및 그 응용

Investigations were made of the use of polyamides and polyamides containing disulfide linkages as antistatic resin finishing agents for polyester (PET), polyester/cotton (T/C, 65/35%) and nylon fabrics. The details and preliminary results are presented in this paper. The polyamides were synthesized from 3, 3' -dithiodipropionyl chloride (DTDPC), 2,2'-dithiodiglycolyl chloride (CTDGC) and diamines, and the polyimide was synthesized from DTDPC and apueous ammonia, both by interfacial polycondensation on the surface of fabrics. Frictional electrostatic voltages were measured by the rotary static tester to determine the degree of antistaticity. Antistatic effects of the polymers containing disulfide linkages were recognized on those PET and T/C, which could be explained by assuming that the disulfide arrangements were converted to pseudo-conjugated double bond patterns. A few samples of nylon fabrics showed increase, rather than decrease, in electrostatic voltage; the phenomena seem to be the result of intermolecular crosslinking of the nylon's active hydrogen with DTDPC and DTDGC. The measurement of breaking strengths of nylon specimens made to examine formation of crosslinking indicated that the strengths of highly antistatic specimens remained unchanged while those of low antistatic specimens dropped significantly.