TPU material with high wear resistance and low internal heat generation and preparation method thereof

The invention relates to a TPU material with high wear resistance and low internal heat generation and a preparation method thereof, and belongs to the technical field of thermoplastic polyurethane elastomers. The TPU material with high wear resistance and low internal heat generation is prepared from the following raw materials: polyester polyol, hydroxyl-terminated polybutadiene, diisocyanate and modified nano Al2O3, wherein the number average molecular weight of the polyester polyol is 1500 to 3500; and the number-average molecular weight of the hydroxyl-terminated polybutadiene is 1500 to 3500. The TPU material with high wear resistance and low internal heat generation provided by the invention has excellent wear resistance and relatively low internal heat generation performance. The invention also provides a simple and feasible preparation method. 本发明涉及一种高耐磨低内生热TPU材料及其制备方法，属于热塑性聚氨酯弹性体技术领域。本发明所述的高耐磨低内生热TPU材料，包括以下原料：聚酯多元醇、端羟基聚丁二烯、二异氰酸酯和改性纳米Al2O3；所述聚酯多元醇的数均分子量为1500～3500；所述端羟基聚丁二烯的数均分子量为1500-3500。本发明所述的高耐磨低内