PBT (Polybutylene Terephthalate)
This high-performance thermoplastic is an optimal choice for food processing applications as it is FDA- and USDA- approved for use with food. It offers an excellent combination of wear and moisture resistance with strength and toughness.
PBT is solvent-resistant at room temperature and can withstand a continuous operating temperature of 230° F. It offers excellent dimensional stability with high creep resistance and low moisture absorption. PBT is easily machined and fabricated.
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|Density||1.3e3 - 1.38e3||kg/m^3||0.047 - 0.0499||lb/ft^3|
|Yield Strength||5.65e7 - 6e7||Pa||8.19 - 8.7||ksi|
|Tensile Strength||5.65e7 - 6e7||Pa||8.19 - 8.7||ksi|
|Elongation||0.5 - 3||% strain||8.6 - 14.5||% strain|
|Hardness (Vickers)||1.67e8 - 1.77e8||Pa||17-18||HV|
|Impact Strength (unnotched)||1.34e5 - 2e5||J/m^2||63.8 - 95.2||ft.lbf/in^2|
|Fracture Toughness||1.59e6 - 2.75e6||Pa/m^0.5||1.45 - 2.51||ksi/in^0.5|
|Young's Modulus||1.93e9 - 3e9||Pa||0.28 - 0.435||10^6 psi|
|Max Service Temperature||112 - 127||°C||234 - 261||°F|
|Melting Temperature||220 - 267||°C||428 - 513||°F|
|Insulator or Conductor||Insulator||Insulator|
|Specific Heat Capability||1.42e3 - 1.48e3||J/kg °C||0.339 - 0.353||BTU/lb. °F|
|Thermal Expansion Coefficent||1.08e-4 - 1.71e-7||strain/°C||60-95||µstrain/°F|
|CO2 Footprint||2.73 - 3.02||kg/kg||2.73 - 3.02||lb/lb|
∗ The information on this page is intended as general guidance only and is only accurate at the time of posting (see date below). Specific material properties vary by manufacturer. Please contact a Dielectric application engineer for help in choosing the optimal material for your application and budget.
Posting Date: July 30, 2012