PBT is the newest crystalline plastic among engineering plastics, and has high toughness and rigidity, as well as superior resistance to heat aging (it maintains good mechanical properties even under high temperatures).
PBT also has good electrical properties under a broad range of temperatures. It has low water absorption, excellent climate and chemical resistance, and is well-balanced.
| Grade | Characteristics |
|---|---|
| PBT(NC) | Standard grade |
| PBT(G30NC) | Fiberglass reinforced grade |
* Refer to the Products Catalogue on page 42 for product specifications.
| Category | Property | Unit | Test Method ISO | TPS® PBT | |
|---|---|---|---|---|---|
| NC | G30 NC |
||||
| Mechanical properties | Tensile strength | MPa | 527-1,2 | 53 | 135 |
| Tensile elasticity | % | 108.0 | 3.0 | ||
| Bending strength | MPa | 178 | - | - | |
| Bending elasticity | GPa | 2.44 | - | ||
| Poisson’s ratio | - | - | 0.35 | - | |
| Charpy impact strength (notched) | KJ/m2 | 179/1eA | 3.9 | - | |
| Rockwell hardness | - | - | - | - | |
| Physical properties | Density (23°C) | g/cm3 | 1183 | 1.31 | 1.53 |
| Water absorption (23°C， 24 Hrs) | % | - | - | 0.15 | |
| Linear expansion coefficient | ×10-5 /°C |
11359-2 | - | 2～3 | |
| Flammability (UL) | - | UL94 | HB Equivarent | HB Equivarent | |
| Thermal properties | Deflection temperature under load (1.82 MPa) | °C | 75-1,2 | 59 | 210 |
| Continuous use temperature | °C | - | - | 110 | |
| Glass transition temperature | °C | - | 35 | 60 | |
| Melting point | °C | - | 223 | 225 | |
| Electrical properties | Dielectric strength (3mm) | kV/mm | IEC60243-1 | - | 50.0 |
| Surface resistance | Ω | IEC60093 | - | 1015 | |
| Volume resistance | Ω0鹀m | - | - | ||
| Permittivity 106Hz | - | IEC60250 | - | 3.8 | |
| Dielectric tangent 106Hz | - | IEC60250 | - | 0.009 | |
| Certified per the Food Sanitation Act | - | - | |||
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