耐高温热塑性聚酯弹性体TPEE 耐低温TPEE/美国杜邦/55D (CAS No.None)

Product Name:Thermoplastic Polyester Elastomer (TPEE)

English Name:Thermoplastic Polyester Elastomer (TPEE)

CAS No.:26062-94-2

Aliases:TPEE, Copolyester elastomer, Hytrel

Physical Properties:TPEE is a block copolymer composed of polybutylene terephthalate (PBT) hard segments and polyether soft segments, combining the elasticity of rubber with the strength of engineering plastics. It exhibits excellent high and low temperature resistance, chemical and oil resistance, as well as good flexural fatigue resistance, resilience, and abrasion resistance. The 55D grade is a medium-high hardness grade with a Shore D hardness of 55, a density of approximately 1.16 g/cm³, a melting temperature of about 170–200°C, and a brittleness temperature below -50°C.

Uses:Mainly used in automotive applications (such as airbag covers and constant-velocity joint boots), wire and cable jacketing, industrial hoses, seals, transmission belts, and sporting goods. It maintains good mechanical properties over a wide temperature range from -50°C to 150°C.

Technical Specifications:

Shore D hardness is 55

Density is approximately 1.16 g/cm³

Melting temperature is approximately 170–200°C

Tensile strength is no less than 30 MPa

Brittleness temperature is no higher than -50°C