| abstract |
The invention provides a thermoplastic polyurethane material, a thermoplastic polyurethane film and an invisible car cover containing the same, and relates to the technical field of polymer films. The thermoplastic polyurethane material is mainly obtained by compounding polyols, polyisocyanates, small molecular polyols, catalysts, chain extenders, end-capping agents, antioxidants and light stabilizers in a specific proportion. It is a block polymer; in which, the long-chain diols constitute the soft segment, and the hard segment is composed of a variety of isocyanates and chain extenders. The thermoplastic polyurethane material prepared from the above soft segments and hard segments has good Soft and hard, strength, elongation and other properties, and then the thermoplastic polyurethane film made from the above thermoplastic polyurethane material has excellent strength, hardness and good elongation, resilience and other properties. |