High Flexibility TPEE Pellets for Automotive Bellows

TPEE Pellets :Thermoplastic polyester elastomer (TPE-E or TPEE), also known as thermoplastic Copolyester, are a class of multiblock copolymers or a physical mix of polymers (usually a plastic and a rubber) which consist of materials with both thermoplastic and elastomeric properties.

Thermoplastic elastomers show both advantages typical of rubbery and plastic materials. The principal difference between thermoset elastomers and thermoplastic elastomers is the type of crosslinking bond in their structures. In fact, crosslinking is a critical structural factor which contributes to impart high elastic properties. The crosslink in thermoset polymers is a covalent bond created during the vulcanization process.

On the other hand the crosslink in thermoplastic elastomer polymers is a weaker dipole or hydrogen bond or takes place in one of the phases of the material.