Polyurethane Thermoplastic Elastomer - PU TPE

Aug 30 2001

Polymer Type

Thermoplastic

Advantages

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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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Related Books

  • Chemistry and Technology of Polyols for Polyurethanes

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