日本住友化学PM-7900

电木粉日本住友化学PM-7900

SUMIKON® PM-7900 (Type J Black) is a glass fiber and inorganic filler filled resol resin (non-anmonia phenolic) molding compound with good mechanical properties and heat resistance. This grade is officially registered UL with V-0 (t=0.16) .

Physical Properties Metric English Comments
Specific Gravity  1.81 g/cc 1.81 g/cc JIS K 6911
Water Absorption  0.13 % 0.13 % JIS K 6911
Linear Mold Shrinkage  0.0026 cm/cm 0.0026 in/in JIS K 6911
 
Mechanical Properties Metric English Comments
Hardness, Rockwell M  113 113 ASTM D-785
Tensile Strength  120 MPa 17400 psi JIS K 6911
Flexural Strength  200 MPa 29000 psi JIS K 6911
Flexural Modulus  16.0 GPa 2320 ksi JIS K 6911
Compressive Strength  229 MPa 33200 psi JIS K 6911
Charpy Impact, Notched  0.500 J/cm² 2.38 ft-lb/in² JIS K 6911
 
Electrical Properties Metric English Comments
Insulation Resistance  3.00e+12 ohm 3.00e+12 ohm As mold; JIS K 6911
  9.00e+12 ohm 9.00e+12 ohm As mold; JIS K 6911
Dielectric Strength  10.0 kV/mm 254 kV/in JIS K 6911
Arc Resistance  181 sec 181 sec JIS K 6911
Comparative Tracking Index  175 V 175 V IEC 60112
 
Thermal Properties Metric English Comments
Deflection Temperature at 1.8 MPa (264 psi)  243 °C 469 °F JIS K 6911
Flammability, UL94  V-0 V-0 
 
Descriptive Properties
Color Black