An Assessment of Recently Developed Thermoplastic Polyurethane and Polyester Elastomers.

摘要

The processing characteristics and aging properties of thermoplastic,injection moulded polyurethane and polyester copolymer elastomers have been assessed. The aging properties of the polyurethanes showed little improvement compared with cast and millable polyurethane elastomers,although their processibility was easier and they could be more economical for the production of large numbers of small components. The polyester copolymers have very good mechanical and aging properties and should be considered as serious candidates for replacing conventional elastomers in many high performance applications.