Degradable polyurethane, preparation method thereof, degradable artificial leather and application of degradable artificial leather

The invention discloses a degradable polyurethane, a preparation method thereof, a degradable artificial leather and an application of the degradable artificial leather. Raw materials of the degradable polyurethane comprise, by weight, 40-50 parts of isophorone diisocyanate, 15-30 parts of polycaprolactone, 10-20 parts of poly(diol lactate), 2-8 parts of N,N-dimethylformamide, 5-8 parts of tetrahydrofuran and 1-2 parts of stannous octoate, and the sum of weight parts of all above components is 100. The isophorone diisocyanate, polycaprolactone, N,N-dimethylformamide and stannous octoate are mixed and reacted to form a prepolymer, and the prepolymer undergoes chain extension by a chain extender formed by poly(diol lactate) and tetrahydrofuran in order to form the biodegradable polyurethanewith the side chain containing a reactive group. The molecular weight of the compound produced by the method is reduced by 70%, and the Young's modulus of the compound is increased by 78%. 本发明公开了一种可降解聚氨酯及其制备方法、可降解人造革和应用，所述可降解