Then, isophorone diisocyanate (IPDI) as hard segments and 1,4-butanediol as chain extender were added to prepare thermoplastic polyurethane (TPU).

• 然后，以异佛尔酮二异氰酸酯（IPDI）为硬段，1,4-丁二醇为扩链剂，得到了硅油改性热塑性聚氨酯（TPU）。