eFunda Polymers: Properties of Thermoplastic elastomers {silicone / polyester, psuedo-interpenetrating networks}
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Thermoplastic elastomers		  
List of Suppliers
State: silicone / polyester
Application: psuedo-interpenetrating networks
Material Properties
 Mechanical Properties Conditions
State 1 State 2 ASTM
Elastic Modulus (MPa)   125  tensile   D638
Flexural Modulus (MPa)   173   23 ºC   D790
Tensile Strength (MPa)   35 at break   D638
Flexural Strength (MPa)
at yield or break		   12     D790
Elongation at break (%)   950 - 1050     D638
Hardness   49 - 51  Shore D   D638
Izod Impact (J/cm of notch)
1/8" thick specimen unless noted		  no break     D256A

 Physical & Electrical Properties Conditions
State ASTM
Specific Gravity  1.21 - 1.16   D792
Water Absorption (% weight increase)  0.3 - 0.8  after 24 hrs D570

 Processing Properties Conditions
Type ASTM
Melting Temperature (ºC)  interpenetrating network  Tm, crystalline  
Processing Temperature (ºC)  183 - 233  injection molding  
 194 - 233  extrusion  
Molding Pressure (MPa)   42 - 97    
Compression Ratio  2.5 - 4    
Linear Mold Shrinkage (cm/cm)  0.004 - 0.015   D955

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Suppliers
Creanova, Inc. Somerset, NJ   
LNP Engineering Plastics, Inc. Exton, PA  800-854-8774

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