Abstract:

In order to research an dfficient and economic flame retardant finising agent usrd in fabric, polyvinylidene dichloride (PVDC) emulsion produced by the method of seed emulsion polymerization and expansible graphite (EG) were compounded to form flame retardant finishing agent. Effects of the defferent ratios of EG and PVDC in the finishing agent on flame retardant peoperties of the fabric were researched, physical and mechanical peoperties of finished fabric were measured, and the collaborative flame retardant mechanism of the finishing agent was analyzed by scanning electron microscopy and infrared spectrum. The results showed that the PVDC emulsion had high flame retardancy, and the mass ratio of EG and PVDC (1：99) flame retardant had the best synergistic flame retardant effect, its afterflame time and afterglow time were 0 s, and damaged length was 96 mm, and the finishing agent formed a dense carbon layer on the fabric surface, and has good thermal stability, and breaking strength of the finished fabric increased by 158%.

Key words: polyvinylidene dichloride, expandable graphite, textile finishing, synergistic flame retardant