Polyurethane Thermoplastic Elastomer - PU TPE

Aug 30 2001

Polymer Type

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Thermoplastic

Advantages

Good abrasion and tear resistance.  Good energy absorption.  May be transparent.  Good adhesion to substrates of metal or other materials.  Resistant to oil.

Disadvantages

High smoke emission.  High hysteresis - excessive heat generation during fatigue loading.  Limited chemical and UV resistance.  Continuous use temperature of only 70°C (160°F).Tendency to absorb moisture, so limited electrical use.

Applications

Abrasion resistant rollers, bearings, gears, shock mountings shoe heels and soles, car bumpers, coatings for fabrics (particularly inflatable products), adhesives.

 

NOTE: Polyether based PU is superior to Polyester-based PU in terms of resistance to hydrolysis, hysteresis, heat build-up and low temperature impact, but polyether PUs are inferior to Polyester PUs for oil and abrasion resistance, ageing and general mechanical props. 

 

Source : Abstracted from Plascams

For more information on Plascams please visit The Rubber and Plastics Research Association

 

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  • Chemistry and Technology of Polyols for Polyurethanes

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