The present invention is concerned with expanded beads of thermoplastic polyurethane in which a water-soluble anionic surfactant is attached at 50 mg/m2 to 1,000 mg/m2 onto the surfaces of expanded beads of thermoplastic polyurethane having a dispersant attached thereto; and a method for producing an expanded beads molded article, including filling the expanded beads of thermoplastic polyurethane in a mold for molding and heating with a water vapor to mutually fuse the expanded beads with each other. The present invention provides expanded beads from which an expanded TPU beads molded article having excellent tensile strength and a method for producing an expanded TPU beads molded article.
                            本发明涉及热塑性聚
氨酯发泡珠,其中在热塑性聚
氨酯发泡珠表面附着 50 mg/m2 至 1,000 mg/m2 的
水溶性阴离子表面活性剂,发泡珠表面附着分散剂;以及生产发泡珠模塑制品的方法,包括将热塑性聚
氨酯发泡珠填充到模塑模具中,并用
水蒸气加热,使发泡珠相互融合。本发明提供了膨体珠,由其制成的膨体热塑性聚
氨酯珠模塑制品具有优异的拉伸强度,还提供了一种生产膨体热塑性聚
氨酯珠模塑制品的方法。