Thermoplastic PolyEster Elastomers (TPEE/COPE)

Thermoplastic PolyEster Elastomers (TPEE), also known as copolyesters, are a class of high-performance polymers that exhibit a unique combination of properties, including:

High strength: TPEE offers excellent mechanical properties including high tensile strength, tear resistance, and impact resistance.
Excellent chemical resistance: They are resistant to a wide range of chemicals including oils, fuels, and many solvents.
Good hydrolytic stability: TPEE exhibits good resistance to moisture and hydrolysis, making it suitable for use in wet environments.
High temperature resistance: Many TPEE grades exhibit excellent resistance at high temperatures, allowing them to perform effectively in harsh conditions.
Good processability: TPEE is easily processed using conventional thermoplastic processing methods such as injection molding, extrusion, and blow molding.
Structure and Properties:

TPEEs are typically multiblock copolymers composed of alternating hard and soft segments.

Hard segments: These segments are typically based on polyester or polyesteramide blocks, which provide the strength and rigidity of the material.
Soft segments: These segments are typically based on polyether blocks such as polytetramethylene ether glycol (PTMEG), which provide the material with elasticity and flexibility.
The specific properties of a TPEE can be tuned by adjusting the composition and molecular weight of the hard and soft segments.

TPEE Applications

Automotive: Fuel lines, hoses, under-hood components, and interior parts.
Industrial: Gears, bearings, seals, and other mechanical components.
Consumer goods: Sporting goods, footwear components, and consumer durables.
Medical: Medical equipment, tubing, and implants.
Electrical and electronics: Insulation, connectors, and other electrical components.

Advantages of using TPEE

High performance: Excellent balance between strength, toughness and flexibility.
Versatility: Suitable for a wide range of applications.
Good chemical and thermal resistance: Allows use in harsh environments.
Processability: Easily processed using conventional methods.
Environmental benefits: Some grades are recyclable and may have a lower environmental impact than some other polymers.