eFunda Polymers: Properties of Polypropylene {homopolymer, 30% PAN carbon fiber, EMI shielding (conductive)}
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Polypropylene		  
List of Suppliers
State: homopolymer
Additives: 30% PAN carbon fiber
Application: EMI shielding (conductive)
Material Properties
 Mechanical Properties Conditions
State 1 State 2 ASTM
Elastic Modulus (MPa)  12075  tensile   D638
Flexural Modulus (MPa)  11385   23 ºC   D790
Tensile Strength (MPa)   47 at break   D638
Flexural Strength (MPa)
at yield or break		   63     D790
Elongation at break (%)   1     D638
Izod Impact (J/cm of notch)
1/8" thick specimen unless noted		   0.6     D256A

 Thermal Properties Conditions
Pressure State ASTM
Deflection Temperature (ºC)  119   1.82 MPa   D648

 Physical & Electrical Properties Conditions
State ASTM
Specific Gravity  1.04   D792
Water Absorption (% weight increase)  0.12  after 24 hrs D570

 Processing Properties Conditions
Type ASTM
Melting Temperature (ºC)  168  Tm, crystalline  
Processing Temperature (ºC)  183 - 244  injection molding  
Linear Mold Shrinkage (cm/cm)  0.001 - 0.003   D955

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Suppliers
ComAlloy International Co. Nashville, TN   
DSM Engineering Plastic Products, Inc. Reading, PA  800-729-0101
LNP Engineering Plastics, Inc. Exton, PA  800-854-8774
RTP Co. Winona, MN  800-433-4787

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