TPU (Thermoplastic Polyurethane) alloy material with relatively high coating capacity on PCTG (Poly Chlorinated Triethylene Glycol) and preparation method thereof

The invention belongs to the field of materials, and provides a TPU (thermoplastic polyurethane) alloy material with high PCTG coating capacity and a preparation method thereof, and the TPU alloy material comprises a thermoplastic polyurethane elastomer, a compatilizer and engineering plastic, the thermoplastic polyurethane elastomer (TPU) serving as a base material endows the material with the characteristics of good wear resistance, high strength, soft hand feeling and smoothness; by using the formula of the scheme and the compatilizer with the hardness range and the ring and ball softening point range, the compatibility of TPU and engineering plastic, especially PCTG and PETG, can be improved by the terephthalic acid and CHDM chain segments contained in the formula; the surface drying time of the TPU alloy material can be prolonged, so that the viscosity of the TPU alloy material can be kept for a long time, the viscosity of the TPU alloy material can be still kept during secondary injection molding, an ef