Hydrolysis-resistant modified TPU hot melt adhesive and preparation method thereof

The invention relates to the field of hot melt adhesives, in particular to a hydrolysis-resistant modified TPU (thermoplastic polyurethane) hot melt adhesive and a preparation method thereof, which are used for solving the problem that the existing TPU hot melt adhesive is easily influenced by hydrolysis, so that the performance is severely reduced. The hydrolysis-resistant modified TPU hot melt adhesive taking the modified TPU resin as the main raw material is difficult to erode by water in the presence of a large number of C-F bonds, and the hydrolysis-resistant modifier added later can inhibit the hydrolysis process when the hydrolysis-resistant modified TPU hot melt adhesive is eroded by water and is hydrolyzed, so that the hydrolysis resistance of the TPU hot melt adhesive is improved, and the service life of the TPU hot melt adhesive is prolonged. The hydrolysis process of the hydrolysis-resistant modified TPU hot melt adhesive is controlled from two aspects, and under the synergistic effect of the modi