Abstract:

In order to improve the flame retardancy and wettability of polyester fabric, the P-N type flame retarding agent BPAT with had phenyl phosphate structure containing 1,3,5-triazine was prepared using 2,4-diethanolamine-6-chloro-1,3,5-triazine and phenyl phosphorous oxydichloride. The flame retardant BPAT was used to treat polyester fabric by two-dip-two- pad finishing. The flame retardance of BPAT on the polyester fabric was investigated by infrared spectrum, scanning electron microscopy, thermal gravimetric analysis and burning properties of the treated and untreated polyester fabric. It is found that the char yield of polyester fabric is improved to over 3 times, and the afterflame time and smoldering time are dropped to 0.2 s and 6.2 s by the BPAT treating on fabric. The treated polyester fabric has good flame retardancy. The flame retardancy of the treated fabric slightly decreased after 10 times of water washing, and the treated fabric has flame retardant durability. The wettability of the treated fabric is increased by finishing with BPAT.

Key words: flame retardancy, polyester fabric, wettability, phenyl phosphorous oxydichliride, P-N type flame retardant agent