Novel block copolymer mixture elastic fiber and manufacturing method thereof

The invention relates to a novel block copolymer mixture elastic fiber and a manufacturing method thereof. The method includes the steps of a, providing a novel block copolymer mixture through mixing, wherein the mixture includes at least one styrene block copolymer (SBC) A and at least one thermoplastic polyether ester elastomer (TPEE) B; b, melting the novel block copolymer mixture and then granulating the mixture again through a granulator suitable for granulating copolymers so as to obtain the novel block copolymer mixture obtained after all the components are sufficiently and evenly mixed; c, conducting melt spinning the novel block copolymer mixture to obtain an elastic fiber precursor; d, conducting curing treatment on the elastic fiber precursor to obtain a novel elastic fiber, wherein the weight ratio of the styrene block copolymers A to the thermoplastic polyether ester elastomers B is 90:10 to 10:90. 本发明涉及一种新型嵌段共聚物混合物弹性纤维及其制造方法，包含步骤：a)通过共混来提供一种新型嵌段共聚物混合物，其包含至少一种苯乙烯嵌段共聚物(SBC)A、以及至少一种热塑性聚醚酯弹性体(TPEE)B