Thermoplastic elastomers (TPE) combine the positive use properties of elastomers with the good processing properties of thermoplastics. Both these materials can be synthesized to create so-called block copolymers, poly-blends or block polymers.

Thermoplastic elastomers are frequently referred to as TPR, thermoplastic rubber. A familiar brand name for polyester-based elastomers is DuPont’s HYTREL^®.

These are the better known thermoplastic elastomers:

TPE-E (thermoplastic polyester elastomer)
TPE-A (thermoplastic polyamide elastomer)
TPE-U (thermoplastic polyurethane elastomer, PUR)
TPE-O and TPE-V (thermoplastic polyolefin elastomer)
TPE-S (thermoplastic polystyrene elastomer)

 

TPE-EThermoplastic polyester elastomers can be manufactured in varying forms from soft to rigid. By altering the share of plasticizer (such as polyalkene glycol ether) you can obtain a Shore hardness range of between D 38 and D 74. TPE-E’s useful temperature range is between 40° and 120° Celsius. It is frequently selected for cable manufacturing due to its excellent performance under dynamic loading. TPE-E’s high resistance to flexural loading and its impact strength are also crucial factors in its favor. It is also resistant to chemicals, oils and solvents.

 

TPE-AThermoplastic polyamide elastomer is similar to TPE-E since it also has good mechanical and chemical properties but it has the added advantage of a higher resistance to acidic and basic environments.

 

TPE-UThermoplastic polyurethane, also known as PUR or polyurethane rubber, is one of the best known thermoplastic elastomers. It is easy to process and has excellent mechanical and chemical properties. TPE-U is given preference when we manufacture flexible cable assemblies.

 

TPE-O and TPE-VThe behavior of TPE-O and TPE-V under mechanical loading can vary widely and can be modified to suit individual requirements. Even though these polyolefin elastomers are less suitable for high-temperature applications, their excellent electrical characteristics make them very attractive.

 

TPE-STPE-S is very similar to thermoplastic polyolefin elastomers. In some cases, however, it does provide even greater elasticity when subjected to flexure.