| About |
|---|
| LEXAN ML7682 resin is a flame retardant polycarbonate blend featuring high flow, good processability, good impact, good heat resistance, and UV stability. It is of non-chlorine and non-bromine flame retardant systems with UL-94 listing of V0 and 5V. LEXAN ML7682 resin offers limited opaque colors for aesthetics needs.&& |
| Product Description | |
|---|---|
| Supplier | SABIC |
| Generic | Polycarbonate |
| Material Status | Commercial: Active |
| Features | Flame Characteristics,Heat Resistance, Good,5VA,High liquidity,Excellent Processability,Halogen free,Weather resistance is good,Good surface appearance,High impact resistance |
| Availabilitys | Asia Pacific |
| Process Methods | Injection Molding |
| Technical Data | |||
|---|---|---|---|
| MECHANICAL | Nominal value | Unit | Test method |
| Tensile Strength | |||
| Yield yld, type I, type I, 50 mm/min | 60 | MPa | ASTM D638 |
| Broken BRK, Type I, Type I, 50 mm/min | 59 | MPa | ASTM D638 |
| Yield yld, 50 mm/min | 60 | MPa | ISO 527-2 |
| Broken BRK, 50 mm/min | 57 | MPa | ISO 527-2 |
| Tensile Strain | |||
| Yield yld, type I, type I, 50 mm/min | 5.6 | % | ASTM D882 |
| Broken BRK, Type I, Type I, 50 mm/min | 93 | % | ASTM D882 |
| Yield yld, 50 mm/min | 5.3 | % | ISO 527 |
| Broken BRK, 50 mm/min | 91 | % | ISO 527 |
| Tensile Modulus | |||
| 50 mm/min | 2500 | MPa | ASTM D638 |
| 1 mm/min | 2460 | MPa | ISO 527 |
| Flexural Strength | |||
| 89 | MPa | ASTM D790 | |
| Yield, 2 mm/min | 90 | MPa | ISO 178 |
| Flexural Modulus | |||
| 1.3 mm/min, 50 mm span | 2400 | MPa | ASTM D790 |
| 2 mm/min | 2430 | MPa | ISO 178 |
| IMPACT | Nominal value | Unit | Test method |
|---|---|---|---|
| Izod Unnotched Impact strength of cantilever beam | |||
| 23℃ | 2150 | J/m | ASTM D4812 |
| -30℃ | 2100 | J/m | ASTM D4812 |
| 80*10*3，23℃ | 181 | KJ/m² | ISO 180/1U |
| 80*10*3，-30℃ | 180 | KJ/m² | ISO 180/1U |
| Izod Notched Impact strength | |||
| 23℃ | 760 | J/m | ASTM D256 |
| -30℃ | 130 | J/m | ASTM D256 |
| 80*10*3，23℃ | 63 | KJ/m² | ISO 180/1A |
| 80*10*3，-30℃ | 15 | KJ/m² | ISO 180/1A |
| Multiaxial Impact | 62 | J | ASTM D3763 |
| Charpy Notched Impact Strength | |||
| 23℃，V-notch Edgew 80*10*3 sp=62mm | 62 | kJ/m² | ISO 179/1eA |
| -30℃，V-notch Edgew 80*10*3 sp=62mm | 16 | kJ/m² | ISO 179/1eA |
| Charpy Unnotch Impact strength | |||
| 23℃，80*10*3 sp=62mm | 133 | kJ/m² | ISO 179/1eU |
| -30℃，80*10*3 sp=62mm | 132 | kJ/m² | ISO 179/1eU |
| THERMAL | Nominal value | Unit | Test method |
|---|---|---|---|
| Vicat Softening Temperature | |||
| Rate B/50 | 138 | ℃ | ASTM D1525 |
| Rate B/50 | 138 | ℃ | ISO 306/B |
| Rate B/120 | 141 | ℃ | ISO 306/B |
| Hot deformation temperature HDT | |||
| 0.45 MPa | 131 | ℃ | ASTM D648 |
| 1.82 MPa | 119 | ℃ | ASTM D648 |
| 0.45MPa Edgew 120*10*4 sp=100mm | 132 | ℃ | ISO 75-1/-2 |
| 1.8 MPa Edgew 120*10*4 sp=100mm | 120 | ℃ | ISO 75-1/-2 |
| Coeff. of linear thermal expansion | |||
| -40℃-40℃，flow | 6.4 | ×10-5/℃ | ASTM E831 |
| -40℃-40℃，xflow | 6.8 | ×10-5/℃ | ASTM E831 |
| 23℃-80℃，flow | 6.7 | ×10-5/℃ | ISO 11359-2 |
| 23℃-80℃，xflow | 7.4 | ×10-5/℃ | ISO 11359-2 |
| Ball Pressure Test | |||
| 125℃ +/- 2℃ | pass | IEC 60695-10-2 | |
| Relative Temperature Index (RTI) | |||
| Electrical Elec | 125 | ℃ | UL-746B |
| 110 | ℃ | UL-746B | |
| 120 | ℃ | UL-746B |
| PHYSICAL | Nominal value | Unit | Test method |
|---|---|---|---|
| Specific Gravity | 1.22 | ASTM D792 | |
| Molding shrinkage | |||
| flow，3.2 mm | 0.6-0.8 | % | Internal Method |
| xflow，3.2 mm | 0.6-0.8 | % | Internal Method |
| Melt Flow Rate | 22 | g/10min | ASTM D1238 |
| Density | 1.21 | g/cm³ | ISO 1183 |
| Water Absorption | 0.36 | % | ISO 62 |
| Moisture Absorption | 0.17 | % | ISO 62 |
| Melt Volume Rate | 21 | cm³/10min | ISO 1133 |
| ELECTRICAL | Nominal value | Unit | Test method |
|---|---|---|---|
| Volume Resistance | 1E15-1E16 | ohm·cm | ASTM D257 |
| Surface Resistivity | 1E15-1E16 | ohm | ASTM D257 |
| FLAME CHARACTERISTICS | Nominal value | Unit | Test method |
|---|---|---|---|
| Flame Class Rating | |||
| 1.8 mm | V-0 | calss | UL 94 |
| 2.5 mm | 5VA | calss | UL 94 |
| 1.8 mm | 5VB | calss | UL 94 |
| Glow Wire Flammability Index (GWFI) | |||
| 3 mm | 960 | ℃ | IEC 60695-2-12 |
| Glow Wire Ignitability Temperature (GWIT) | |||
| 1.0 mm | 850 | ℃ | IEC 60695-2-13 |
| f1 | UL 746C |
| Process Conditions | |||
|---|---|---|---|
| Injection Molding | Nominal value | Unit | Test method |
| Drying Temperature | 120 | ℃ | |
| Drying Time | 3-4 | hr | |
| Drying Temperature | 48 | ℃ | |
| Maximum Moisture Content | 0.02 | % | |
| Melt Temperature | 290-310 | ℃ | |
| Nozzle temperature | 280-305 | ℃ | |
| Front Temperature Zone 3 | 20-310 | ℃ | |
| Middle Temperature Zone 2 | 275-300 | ℃ | |
| Rear Temperature Zone 1 | 265-290 | ℃ | |
| Mold Temperature | 70-95 | ℃ | |
| Back Pressure | 0.3-0.7 | MPa | |
| Screw Speed | 40-70 | rpm | |
| Shot to Cylinder Size | 40-60 | % | |
| Vent Depth | 0.025-0.076 | mm | |
| Notes |
|---|
| 1. Typical properties: these are not to be construed as specifications. |
| 2. 2.0 in/min |
| 3. Type I, 2.0 in/min |
| 4. 0.051 in/min |
| 5. 0.079 in/min |
| 6. at Yield |
| 7. 80*10*3 sp=62mm |
| 8. 80*10*3 mm |
| 9. 120*10*4 mm |
| 10. Rate A (50°C/h), Loading 2 (50 N) |
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