Abstract
In this paper, PET fabric was modified by the flame retardant HOP to improve flame retardance. The results showed that the flame retardance of PET fabric improved a lot. With the increase of the HOP concentration, the limiting oxygen index could increase to 34%, the horizontal burning length could decrease to 0 mm, the horizontal burning rate could decrease to 0 mm/s, and the vertical ignite time could increase to 5 s. The infrared spectroscopy showed the modification of HOP made PET fabric gain phosphate groups. Moreover, the breaking strength, stiffness and crease recovery angle were kept well.
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