The invention provides a thermoplastic resin fiber which forms no dioxin-related compound when oxidized or burned, and is excellent in flame retardancy even when the content of a flame retardant is low. This flame-retardant fiber contains 5 to 15% by weight of a flame retardant having the following general formula (1):
where R1 to R5 and R'1 to R'5 are independently Br or Cl with the Br/Cl ratio lying in the range of 100/0 to 40/60, and n is an integer of 2 to 16, and 2 to 8% by weight of antimony oxide as a flame retardant promoter.
本发明提供了一种热塑性
树脂纤维,该纤维在氧化或燃烧时不会产生二恶英相关化合物,即使阻燃剂含量较低,也具有优异的阻燃性。这种阻燃纤维含有 5%至 15%(按重量计)的阻燃剂,其通式如下(1):
其中 R1 至 R5 和 R'1 至 R'5 独立地为 Br 或 Cl,Br/Cl 的比例范围为 100/0 至 40/60,n 为 2 至 16 的整数,以及 2 至 8%(按重量计)的氧化
锑作为阻燃
促进剂。