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LNP (SABIC Innovative Plastics) VALOX® SMV5837 Polybutylene Terephthalate, 20% Glass Bead Reinforcement
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 VGB5820.
- Forms: Pellets
- Processing Method: Injection Molding
| Physical Properties | Original Value | Comments | ||
| ||||
| Specific Gravity | 1.46 g/cc | ASTM D792 | ||
| Linear Mold Shrinkage | 0.016 - 0.019 cm/cm | 3.18 mm; ASTM D955 | ||
| Linear Mold Shrinkage, Transverse | 0.018 - 0.02 cm/cm | 3.18 mm; ASTM D955 | ||
Mechanical Properties | ||||
| ||||
| Tensile Strength at Break | 40.7 MPa | Type I, 5 mm/min; ASTM D638 | ||
| Tensile Strength at Break | 48.3 MPa | Type I, 50 mm/min; ASTM D638 | ||
| Tensile Strength, Yield | 46.9 MPa | Type I, 5 mm/min; ASTM D638 | ||
| Tensile Strength, Yield | 51.7 MPa | Type I, 50 mm/min; ASTM D638 | ||
| Elongation at Break | 16 % | Type I, 5 mm/min; ASTM D638 | ||
| Flexural Modulus | 3.21 GPa | (50.8 mm Span) 1mm/min; ASTM D790 | ||
| Flexural Yield Strength | 93.1 MPa | (50.8 mm Span) 1mm/min; ASTM D790 | ||
| Izod Impact, Notched | 0.32 J/cm | ASTM D256 | ||
| Izod Impact, Notched | 3.6 J/cm | Reverse; ASTM D256 | ||
| Izod Impact, Unnotched | 5.34 J/cm | ASTM D256 | ||
Thermal Properties | ||||
| ||||
| CTE, linear 20°C | 140 µm/m-°C | 60°C to 138°C; ASTM D696 | ||
| CTE, linear 20°C | 65 µm/m-°C | -40°C to 38°C; ASTM D696 | ||
| CTE, linear 20°C Transverse to Flow | 150 µm/m-°C | 60°C to 138°C; ASTM D696 | ||
| CTE, linear 20°C Transverse to Flow | 68 µm/m-°C | -40°C to 38°C; ASTM D696 | ||
| Deflection Temperature at 1.8 MPa (264 psi) | 70 °C | Unannealed (6.35 mm); ASTM D648 | ||
Processing Properties | ||||
| ||||
| Rear Barrel Temperature | 243 - 254 °C | |||
| Middle Barrel Temperature | 249 - 260 °C | |||
| Front Barrel Temperature | 254 - 266 °C | |||
| Nozzle Temperature | 254 - 271 °C | |||
| Melt Temperature | 254 - 277 °C | |||
| Mold Temperature | 65.6 - 93.3 °C | |||
| Drying Temperature | 121 °C | |||
| Dry Time | 3 - 12 hour | |||
| Moisture Content | 0.02 % | Suggested | ||
| Back Pressure | 0.345 - 0.689 MPa | |||
| Clamp Pressure | 41 - 83 MPa | |||
| Shot Size | 40 - 80 % | Suggested | ||
| Vent Depth | 0.0025 - 0.0038 cm | |||
| Screw Speed | 50 - 80 rpm | |||
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