Method for preparing novel polyether-polyester polyurethane material

The invention belongs to the technical field of polyurethane materials and relates to a method for preparing novel a polyether-polyester polyurethane material, in particular to a method for preparing a polyether-polyester polyurethane material by a two-step process. The method is characterized by comprising the following steps of: preparing a polyether prepolymer and a polyester prepolymer respectively by using polyether polyhydric alcohol and polyester polyhydric alcohol and diisocyanate, mixing the two prepolymers according to a ratio, and crosslinking by using a chain extender to prepare novel polyether-polyester polyurethane. The polyether-polyester polyurethane material has the combined excellent performance of a polyether polyurethane material and a polyester polyurethane material, and has the wide-temperature range damping performance. The preparation method is simple and convenient and stable and mild in process and allows for controlling product performance, and can be used for large-scale industrial