eFunda Polymers: Properties of Thermoplastic elastomers {polyurethane, polyester compound, molding and extrusion compounds, low and medium hardness}
engineering fundamentals Polymer Material Properties
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Thermoplastic elastomers
 
List of Suppliers
State: polyurethane
Additives: polyester compound
Application: molding and extrusion compounds, low and medium hardness
Material Properties
 Mechanical Properties Conditions
State 1 State 2 ASTM
Flexural Modulus (MPa)  27600 - 48231   23 ºC   D790
Tensile Strength (MPa)   23 - 58 at break   D638
Elongation at break (%)   410 - 620     D638
Hardness   55 - 94  Shore A   D638

 Physical & Electrical Properties Conditions
State ASTM
Specific Gravity  1.17 - 1.25   D792

 Processing Properties Conditions
Type ASTM
Melting Temperature (ºC)  120 - 160  Tg, amorphous  
Processing Temperature (ºC)  171 - 224  injection molding  
 171 - 210  extrusion  
Molding Pressure (MPa)   6 - 10    
Linear Mold Shrinkage (cm/cm)  0.008 - 0.015   D955

Suppliers
BASF Corp. Mount Olive, NJ  800-BC-RESIN
Bayer Corp. Pittsburgh, PA  800-662-2927
BF Goodrich Co. Twinsburg, OH  800-425-1634
Dow Plastics Midland, MI  800-441-4369
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