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LNP (SABIC Innovative Plastics) VALOX® SMV5871 Polybutylene Terephthalate, 20% Mineral Filler
Subcategory: Filled/Reinforced Thermoplastic; Polybutylene Terephthalate (PBT); Polyester, TP; Polymer; Thermoplastic
Close Analogs: Saudi Basic Industries Corporation (SABIC) announced on August 31st, 2007, the completion of its purchase of GE Plastics.
Material Notes:
Will be VM720.
- Features: Low Warpage, Good Dimensional Stability, High Strength
- Forms: Pellets
- Processing Method: Injection Molding
| Physical Properties | Metric | English | Comments | |
| ||||
| Specific Gravity | 1.48 g/cc | 0.0535 lb/in³ | ASTM D792 | |
| Linear Mold Shrinkage | 0.013 - 0.015 cm/cm | 0.013 - 0.015 in/in | 3.18 mm; ASTM D955 | |
| Linear Mold Shrinkage, Transverse | 0.012 - 0.014 cm/cm | 0.012 - 0.014 in/in | 3.18 mm; ASTM D955 | |
Mechanical Properties | ||||
| ||||
| Tensile Strength at Break | 55.2 MPa | 8010 psi | Type I, 5 mm/min; ASTM D638 | |
| Elongation at Break | 2.4 % | 2.4 % | Type I, 5 mm/min; ASTM D638 | |
| Tensile Modulus | 4.83 GPa | 701 ksi | 5 mm/min; ASTM D638 | |
| Flexural Modulus | 4.65 GPa | 674 ksi | (50.8 mm Span) 1mm/min; ASTM D790 | |
| Flexural Strength | 100 MPa | 14500 psi | at Break, (50.8 mm Span) 1mm/min; ASTM D790 | |
| Izod Impact, Notched | 0.267 J/cm | 0.5 ft-lb/in | ASTM D256 | |
| Izod Impact, Notched | 1.9 J/cm | 3.56 ft-lb/in | Reverse; ASTM D256 | |
| Izod Impact, Unnotched | 3.1 J/cm | 5.81 ft-lb/in | ASTM D256 | |
| Falling Dart Impact | 5.08 J | 3.75 ft-lb | ASTM D3763 | |
Thermal Properties | ||||
| ||||
| CTE, linear 20°C | 47 µm/m-°C | 26.1 µin/in-°F | -40 to 38°C; ASTM D696 | |
| CTE, linear 20°C | 61 µm/m-°C | 33.9 µin/in-°F | 60 to 138°C; ASTM D696 | |
| CTE, linear 20°C Transverse to Flow | 50 µm/m-°C | 27.8 µin/in-°F | -40 to 38°C; ASTM D696 | |
| CTE, linear 20°C Transverse to Flow | 88 µm/m-°C | 48.9 µin/in-°F | 60 to 138°C; ASTM D696 | |
| Deflection Temperature at 0.46 MPa (66 psi) | 193 °C | 379 °F | Unannealed (3.18 mm); ASTM D648 | |
| Deflection Temperature at 0.46 MPa (66 psi) | 202 °C | 396 °F | Unannealed (6.35 mm); ASTM D648 | |
Processing Properties | ||||
| ||||
| Rear Barrel Temperature | 243 - 254 °C | 469 - 489 °F | ||
| Middle Barrel Temperature | 249 - 260 °C | 480 - 500 °F | ||
| Front Barrel Temperature | 254 - 266 °C | 489 - 511 °F | ||
| Nozzle Temperature | 254 - 271 °C | 489 - 520 °F | ||
| Melt Temperature | 254 - 277 °C | 489 - 531 °F | ||
| Mold Temperature | 65.6 - 93.3 °C | 150 - 200 °F | ||
| Drying Temperature | 121 °C | 250 °F | ||
| Dry Time | 3 - 12 hour | 3 - 12 hour | ||
| Moisture Content | 0.02 % | 0.02 % | Suggested | |
| Back Pressure | 0.345 - 0.689 MPa | 50 - 99.9 psi | ||
| Clamp Pressure | 41 - 83 MPa | 5950 - 12000 psi | ||
| Shot Size | 40 - 80 % | 40 - 80 % | Suggested | |
| Vent Depth | 0.0025 - 0.0038 cm | 0.000984 - 0.0015 in | ||
| Screw Speed | 50 - 80 rpm | 50 - 80 rpm | ||
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