DuPont Hytrel? TPE DYM830 BK320 TPC-ET
Subcategory: Elastomer, TPE; Polyester, TP; Polymer; Thermoplastic
Material Notes:
Hytrel? DYM830 BK320 is a high modulus polyester alloy suited for injection molding of Air Bag Deployment Doors. It has a nominal durometer hardness of 61D and contains fine particle size carbon black.
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| Physical Properties | Metric | English | Comments | |
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| Density | 1.23 g/cc | 0.0444 lb/in? | ISO 1183 | |
| Specific Gravity | 1.2 g/cc | 0.0434 lb/in? | ASTM D 792 | |
| Water Absorption | 0.5 % | 0.5 % | Immersion 24h; 23?C; ASTM D 570 | |
| Water Absorption | 0.6 % | 0.6 % | Immersion 24h; 23?C; ISO 62 | |
| Moisture Absorption at Equilibrium | 0.2 % | 0.2 % | 50%RH; 23?C; ISO 62 | |
| Water Absorption at Saturation | 0.6 % | 0.6 % | Immersed; 23?C; ISO 62 | |
| Linear Mold Shrinkage | 0.011 cm/cm | 0.011 in/in | Parallel 2.0mm; ISO 294-4 | |
| Linear Mold Shrinkage | 0.016 cm/cm | 0.016 in/in | Flow 1.27mm (0.05in); ASTM D 955 | |
| Linear Mold Shrinkage, Transverse | 0.011 cm/cm | 0.011 in/in | 2.0mm; ISO 294-4 | |
| Linear Mold Shrinkage, Transverse | 0.015 cm/cm | 0.015 in/in | 1.27mm (0.05in); ASTM D 955 | |
| Melt Flow | 12.7 g/10 min | 12.7 g/10 min | 2.16 kg/240?C; based on room temperature density; ISO 1133 | |
| Melt Flow | 17 g/10 min | 17 g/10 min | 2.16kg at 240?C; ASTM D 1238 | |
| Melt Flow | 17 g/10 min | 17 g/10 min | 240?C, 2.16kg; ISO 1133 | |
Mechanical Properties |
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| Hardness, Shore D | 58 | 58 | 15s; ISO 868 | |
| Hardness, Shore D | 59 | 59 | Maximum; ASTM D 2240 | |
| Hardness, Shore D | 61 | 61 | Maximum; ISO 868 | |
| Tensile Strength at Break | 35 MPa | 5080 psi | ISO 527 | |
| Tensile Strength at Break | 36 MPa | 5220 psi | ASTM D 638 | |
| Tensile Strength, Yield | 18 MPa | 2610 psi | @ 5% Strain; 23?C; ASTM D 638 | |
| Tensile Strength, Yield | 18 MPa | 2610 psi | @ 5% Strain; 23?C; ISO 527 | |
| Tensile Strength, Yield | 20 MPa | 2900 psi | ISO 527 | |
| Tensile Strength, Yield | 20 MPa | 2900 psi | @ 10% Strain; 23?C; ASTM D 638 | |
| Tensile Strength, Yield | 21 MPa | 3050 psi | @ 10% Strain; 23?C; ISO 527 | |
| Tensile Strength, Yield | 21 MPa | 3050 psi | @ 15% Strain; 23?C; ASTM D 638 | |
| Elongation at Break | Min 300 % | Min 300 % | ISO 527 | |
| Elongation at Break | 400 % | 400 % | Nominal; ISO 527 | |
| Elongation at Break | 440 % | 440 % | ISO 527 | |
| Elongation at Break | 480 % | 480 % | ASTM D 638 | |
| Elongation at Yield | 30 % | 30 % | ISO 527 | |
| Flexural Modulus | 0.15 GPa | 21.8 ksi | 100?C; ASTM D 790 | |
| Flexural Modulus | 0.83 GPa | 120 ksi | ASTM D 790 | |
| Flexural Modulus | 0.83 GPa | 120 ksi | ISO 178 | |
| Flexural Modulus | 1.25 GPa | 181 ksi | -40?C; ASTM D 790 | |
| Charpy Impact Unnotched | NB | NB | ISO 179/1eU | |
| Izod Impact, Notched | 1.4 J/cm | 2.62 ft-lb/in | -60?C; ASTM D 256 | |
| Izod Impact, Notched | 1.6 J/cm | 3 ft-lb/in | -40?C; ASTM D 256 | |
| Izod Impact, Notched | NB | NB | ASTM D 256 | |
Electrical Properties |
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| Volume Resistivity | 8e+013 ohm-cm | 8e+013 ohm-cm | IEC 60093 | |
| Surface Resistance | 5e+014 ohm | 5e+014 ohm | IEC 60093 | |
| Dielectric Constant | 4.2 | 4.2 | 1E6 Hz; IEC 60250 | |
| Dielectric Constant | 4.4 | 4.4 | 1E2 Hz; IEC 60250 | |
| Dielectric Strength | 22 kV/mm | 559 kV/in | IEC 60243-1 | |
| Dissipation Factor | 0.006 | 0.006 | 1E2 Hz; IEC 60250 | |
| Dissipation Factor | 0.02 | 0.02 | 1E6 Hz; IEC 60250 | |
| Comparative Tracking Index | Min 600 V | Min 600 V | IEC 60112 | |
Thermal Properties |
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| CTE, linear 20?C | 136 ?m/m-?C | 75.6 ?in/in-?F | 23 - 55?C (73 - 130?F); Parallel; ISO 11359-1/-2 | |
| CTE, linear 20?C Transverse to Flow | 155 ?m/m-?C | 86.1 ?in/in-?F | 23 - 55?C (73 - 130?F); ISO 11359-1/-2 | |
| Melting Point | 222 ?C | 432 ?F | ASTM D 3418 | |
| Melting Point | 223 ?C | 433 ?F | 10?C/min; ISO 11357-1/-3 | |
| Deflection Temperature at 0.46 MPa (66 psi) | 70 ?C | 158 ?F | ISO 75-1/-2 | |
| Deflection Temperature at 0.46 MPa (66 psi) | 90 ?C | 194 ?F | ASTM D 648 | |
| Deflection Temperature at 1.8 MPa (264 psi) | 45 ?C | 113 ?F | ISO 75-1/-2 | |
| Deflection Temperature at 1.8 MPa (264 psi) | 46 ?C | 115 ?F | ASTM D 648 | |
| Brittleness Temperature | -100 ?C | -148 ?F | ISO 974 | |
| Glass Temperature | -60 ?C | -76 ?F | 2?C/min; ISO 11357-1/-2 | |
| Glass Temperature | -60 ?C | -76 ?F | 10?C/min; IEC 61006, A | |
| Oxygen Index | 21 % | 21 % | ISO 4589-1/-2 | |
Processing Properties |
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| Melt Temperature | 245 ?C | 473 ?F | Optimum; Injection Molding | |
| Mold Temperature | 45 - 55 ?C | 113 - 131 ?F | Injection Molding | |
| Mold Temperature | 45 ?C | 113 ?F | Optimum; Injection Molding | |
| Drying Temperature | 110 ?C | 230 ?F | Injection Molding | |
| Dry Time | 3 - 4 hour | 3 - 4 hour | Injection Molding; Dehumidified Dryer | |
| Moisture Content | Max 0.05 % | Max 0.05 % | Injection Molding | |
Descriptive Properties |
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| Additive | Antioxidant | |||
| Appearance | Black | |||
| Drying | Recommended | |||
| DuPont Product Category | Air Bag Door Resins | |||
| Features | Creep Resistance, Good | |||
| Features | Flexibility, Low Temperature | |||
| Features | Hardness, Medium | |||
| Features | Impact Resistance, Low Temp. | |||
| Form | Pellets | |||
| Heat Stabilized | Yes | |||
| Injection Moldable | Yes | |||
| Part Marking Code | >TPC-ET+PBT< | ISO 11469 | ||
| Processing Method | Injection Molding | |||
| Region | Americas | |||
| Region | Asia/Pacific | |||
| Region | Europe | |||
| Resin Identification | TPC-ET+PBT | ISO 1043 | ||
| Uses | Automotive | |||
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