eFunda Polymers: Properties of Liquid Crystal Polymer {30% glass fiber reinforced, high HDT}
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Liquid Crystal Polymer
 
List of Suppliers
Additives: 30% glass fiber reinforced
Application: high HDT
Material Properties
 Mechanical Properties Conditions
State 1 State 2 ASTM
Elastic Modulus (MPa)   3084 - 5313  compressive   D638
 16077 - 17940  tensile   D638
Flexural Modulus (MPa)  12420 - 14145   23 ºC   D790
  7590  121 ºC   D790
  7590  149 ºC   D790
Tensile Strength (MPa)  124 - 145 at break   D638
Compressive Strength (MPa)
at yield or break
  66 - 86     D695
Flexural Strength (MPa)
at yield or break
 166 - 174     D790
Elongation at break (%)   2 - 2     D638
Hardness   63  Rockwell M   D638
Izod Impact (J/cm of notch)
1/8" thick specimen unless noted
  1.1 - 2.2     D256A

 Thermal Properties Conditions
Pressure State ASTM
Coef of Thermal Expansion (10-6/ºC)   14 - 36     D696
Deflection Temperature (ºC)  270 - 298   1.82 MPa   D648
Thermal Conductivity (W/m-ºC)  0.064     C177

 Physical & Electrical Properties Conditions
State ASTM
Specific Gravity  1.6 - 1.66   D792
Water Absorption (% weight increase)  0 - 0.1  after 24 hrs D570
Dielectric Strength (V/mil);
1/8" thick specimen unless noted
  900 - 1050   D149

 Processing Properties Conditions
Type ASTM
Melting Temperature (ºC)  355  Tm, crystalline  
Processing Temperature (ºC)  329 - 388  injection molding  
Molding Pressure (MPa)   28 - 55    
Compression Ratio  2.5 - 4    
Linear Mold Shrinkage (cm/cm)  0.01   D955

Suppliers
DuPont Co., Polymers Wilmington, DE  800-438-7225
RTP Co. Winona, MN  800-433-4787
Solvay Advanced Polymers, L.L.C. Alpharetta, GA  800-621-4557
Ticona Summit, NJ  800-526-4960
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