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Thermoplastic polyester elastomer

Thermoplastic polyester elastomer

Thermoplastic polyester elastomer

TPEE is a block copolymer containing polyester hard segment and polyether soft segment; the polyether soft segment and uncrystallized polyester form an amorphous phase, and the polyester hard segment partially crystallizes to form crystalline micro-domains, which act as physical crosslinking points The role of. Thermoplastic polyester elastomer has the elasticity of rubber and the strength of engineering plastics. Compared with rubber, it has better processing performance and longer service life; the soft segment gives it elasticity, making it like rubber; the hard segment gives it processing Performance makes it like plastic. Compared with engineering plastics, it has high strength, high hardness, while maintaining high elasticity, high aging resistance, oil resistance, acid and alkali resistance, high temperature resistance, radiation resistance, and excellent dynamic mechanical properties. ; The operating temperature range is -50℃~140℃. Most of them are used in demanding elastomer products.
 
TPEE performance characteristics:
It has a certain similarity with TPU. It can be considered that it can cover TPU in function (but the cost is slightly higher than TPU). It has superior processing performance characteristics than TPU: it is not easy to shrink, the molding cycle is shorter, and it does not stick to the mold. But with The disadvantage of TPU is opacity. Generally speaking, TPEE has the following advantages:
1. Strong wear resistance
2. It can have both: high mechanical strength, high hardness, while maintaining high elasticity and high aging resistance
3. Excellent bending performance
4. Low temperature resistance -35-50℃ and high temperature resistance performance of 150℃ aging resistance is stronger than TPU, TPR/TPE
5. The long-term compression deformation rate is low,
6. Resistant to oil, lubricating oil and aliphatic hydrocarbon solvents
7. It has self-lubricating properties, which is particularly advantageous in the application of silent gears.
 
 
TPEE application (hardness range: 28D-72D)
Automobile: CVJ dust cover, steering gear cover, shock absorber cover, dust cover, traction coupling cover, remote bellows, engine air intake duct, airbag and cover plate, car satellite antenna cable buckle, rear Suitcase lock assembly, door lock assembly, door handle sealing ring, shock absorption plate, silencer gear, pipe plug, plug, ball head, window glass shock absorber, shock absorption chassis, chassis stone-resistant coating, etc.
Electronic and electrical appliances: power tools, welding handle cable sheaths, electrical flexible buttons, cordless telephone radomes, wires and cables, instruments and equipment, plastic shell encapsulation. Low-noise gears, plastic alloys (bonding PC\PVC\ABS\PBT\PET) Polar plastics). ,,,,
Industrial manufacturing: seals, conveyor belts, elevator slides, high-pressure washers, tape recorder silencer gears, quartz clock silencer gears, cigarette machine springs.
Sporting goods: ski retainer, ski boot straps, golf ball lining
Daily consumer goods: combs, brushes and other beauty and hairdressing products. Glasses foot covers and frames. Clothing luggage accessories.
 
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