SABIC Innovative Plastics LEXAN PC PK2940 Polycarbonate (North America)
Subcategory: Polycarbonate; Polymer; Thermoplastic
Close Analogs: Saudi Basic Industries Corporation (SABIC) announced on August 31st, 2007, the completion of its purchase of GE Plastics.
Material Notes:
Information provided by GE Plastics for their North American product line.
| Physical Properties | Metric | English | Comments | |
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| Density | 1.2 g/cc | 0.0434 lb/in? | ASTM D 792 | |
| Water Absorption | 0.15 % | 0.15 % | 24 hours @ 73F; ASTM D 570 | |
| Water Absorption at Saturation | 0.35 % | 0.35 % | Equilibrium, 73F; ASTM D 570 | |
| Water Absorption at Saturation | 0.58 % | 0.58 % | Equilibrium, 212F; ASTM D 570 | |
| Linear Mold Shrinkage | 0.005 - 0.007 cm/cm | 0.005 - 0.007 in/in | Flow, 0.125 inch; ASTM D 955 | |
| Melt Flow | 2 g/10 min | 2 g/10 min | 300C/1.2 kgf (O); ASTM D 1238 | |
Mechanical Properties |
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| Hardness, Rockwell M | 70 | 70 | ASTM D 785 | |
| Hardness, Rockwell R | 118 | 118 | ASTM D 785 | |
| Tensile Strength @ Break | 65.5 MPa | 9500 psi | Type I, 2.0 in/min; ASTM D 638 | |
| Tensile Strength @ Yield | 62.1 MPa | 9000 psi | Type I, 2.0 in/min; ASTM D 638 | |
| Elongation at Break | 110 % | 110 % | Type I, 2.0 in/min; ASTM D 638 | |
| Elongation at Yield | 7 % | 7 % | Type I, 2.0 in/min; ASTM D 638 | |
| Flexural Modulus | 2.34 GPa | 340 ksi | 0.05 in/min, 2" span; ASTM D 790 | |
| Flexural Yield Strength | 93.1 MPa | 13500 psi | 0.05 in/min, 2" span; ASTM D 790 | |
| Fatigue Strength | 6.89 MPa | 1000 psi | Fatigue Limit, 2.5 MM cycles; ASTM D 671 | |
| Izod Impact, Unnotched | 32 J/cm | 60 ft-lb/in | 73F; ASTM D 4812 | |
| Tensile Impact Strength | 630 kJ/m? | 300 ft-lb/in? | Type "S"; ASTM D 1822 | |
| Falling Dart Impact | 169 J | 125 ft-lb | 73F; ASTM D 3029 | |
| Taber Abrasion, mg/1000 Cycles | 10 | 10 | CS-17, 1 kg; ASTM D 1044 | |
| Izod Impact, Notched | 7.47 J/cm | 14 ft-lb/in | 73F; ASTM D 256 | |
Electrical Properties |
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| Volume Resistivity | Min 1e+017 ohm-cm | Min 1e+017 ohm-cm | ASTM D 257 | |
| Dielectric Constant | 2.96 | 2.96 | 1 MHz; ASTM D 150 | |
| Dielectric Constant | 3.17 | 3.17 | 60 Hz; ASTM D 150 | |
| Dielectric Strength | 15 kV/mm | 380 V/mil | in air, 125 mils; ASTM D 149 | |
| Dissipation Factor | 0.0009 | 0.0009 | 60 Hz; ASTM D 150 | |
| Dissipation Factor | 0.01 | 0.01 | 1 MHz; ASTM D 150 | |
Thermal Properties |
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| CTE, linear 68?F | 68.4 ?m/m-?C | 38 ?in/in-?F | Flow, -40F to 200F; ASTM E 831 | |
| Specific Heat Capacity | 1.26 J/g-?C | 0.3 BTU/lb-?F | ASTM C 351 | |
| Thermal Conductivity | 0.19 W/m-K | 1.32 BTU-in/hr-ft?-?F | ASTM C 177 | |
| Deflection Temperature at 0.46 MPa (66 psi) | 138 ?C | 280 ?F | 0.250 inch, unannealed; ASTM D 648 | |
| Deflection Temperature at 1.8 MPa (264 psi) | 132 ?C | 270 ?F | 0.250 inch, unannealed; ASTM D 648 | |
| Vicat Softening Point | 157 ?C | 315 ?F | Rate B; ASTM D 1525 | |
Optical Properties |
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| Refractive Index | 1.586 | 1.586 | ASTM D 542 | |
| Haze | 1 % | 1 % | 0.100 inch; ASTM D 1003 | |
| Transmission, Visible | 88 % | 88 % | 0.100 inch; ASTM D 1003 | |
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