eFunda Polymers: Properties of Polyimide {thermoplastic, 30% carbon fiber reinforced}
engineering fundamentals Polymer Material Properties
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Polyimide
 
List of Suppliers
State: thermoplastic
Additives: 30% carbon fiber reinforced
Material Properties
 Mechanical Properties Conditions
State 1 State 2 ASTM
Elastic Modulus (MPa)   3954  compressive   D638
 20700  tensile   D638
Flexural Modulus (MPa)  19182   23 ºC   D790
 16905  149 ºC   D790
Tensile Strength (MPa)  230 at break   D638
Compressive Strength (MPa)
at yield or break
 208     D695
Flexural Strength (MPa)
at yield or break
 322     D790
Elongation at break (%)   2     D638
Hardness  128  Rockwell R   D638
 105  Rockwell M   D638
Izod Impact (J/cm of notch)
1/8" thick specimen unless noted
  1.1     D256A

 Thermal Properties Conditions
Pressure State ASTM
Coef of Thermal Expansion (10-6/ºC)   6 - 47     D696
Deflection Temperature (ºC)  248   1.82 MPa   D648
Thermal Conductivity (W/m-ºC)  0.489     C177

 Physical & Electrical Properties Conditions
State ASTM
Specific Gravity  1.43   D792
Water Absorption (% weight increase)  0.23  after 24 hrs D570

 Processing Properties Conditions
Type ASTM
Melting Temperature (ºC)  250  Tg, amorphous  
Melting Temperature (ºC)  388  Tm, crystalline  
Processing Temperature (ºC)  390 - 420  injection molding  
Molding Pressure (MPa)   69 - 207    
Compression Ratio  1.7 - 2.3    
Linear Mold Shrinkage (cm/cm)  0.0021   D955

Suppliers
Mitsui Chemicals America, Inc. Purchase, NY  800-682-2377
RTP Co. Winona, MN  800-433-4787
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