Thermoplastic polyurethane (TPU) elastomer, also known as polyurethane rubber, is a type of polymer elastomer mater
Thermoplastic polyurethane (TPU) elastomer, also known as polyurethane rubber, is a type of polymer elastomer materials that contain many carbamate groups (-NHCOO-) in the molecular chain. It is obtained by reaction between diisocyanate and polyether with terminal hydroxyl groups or polyester polyol, and low molecular weight dialcohol chain extender. TPU molecular chain contains a large number of ammonia ester groups and ethers, esters and urea groups, which are bonded by strong hydrogen bonds. Many TPU elastomers with various properties can be prepared by the formulation of a variety of polyether and polyester.