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Formula: PBT
Form: Filament
Material: Polybutylene terephthalate (PBT)
CAS Number: 24968-12-5
Commodity: Polymers
PBT Filament is a thermoplastic polyester material offered by Goodfellow within their wide range of 3D printing filaments. With 38 variations, PBT Filaments are valued for their dimensional stability, low moisture absorption, chemical resistance and mechanical strength. These properties make PBT useful across industrial, scientific and engineering applications like automotive parts, precision instruments and electrical components. The range of PBT filaments from Goodfellow allows customers to select the optimal material properties and colors for their specific 3D printing needs.
Tolerances
Filament
| Diameter | ±20% | |
|---|---|---|
| Length | +5% / -1% |
Material Properties for Polymers
Chemical Resistance
| Element | Value |
|---|---|
| Acids - concentrated | Good-Poor |
| Acids - dilute | Good |
| Alcohols | Good |
| Alkalis | Fair |
| Aromatic hydrocarbons | Good |
| Greases and Oils | Good |
| Halogenated Hydrocarbons | Good-Poor |
| Halogens | Poor |
| Ketones | Good-Poor |
Electrical Properties
| Element | Value |
|---|---|
| Dielectric constant @1kHz | 3.2 |
| Dissipation factor @ 1kHz | 0.002 |
| Dielectric strength( kV mm⁻¹ ) | 20 |
| Volume resistivity( Ohmcm ) | 10¹⁵ |
Physical Properties
| Element | Value |
|---|---|
| Flammability | HB |
| Radiation resistance | Good |
| Resistance to Ultra-violet | Fair? |
| Limiting oxygen index( % ) | 25 |
| Water absorption - over 24 hours( % ) | 0.1 |
| Density( gcm⁻³ ) | 1.31 |
Mechanical Properties
| Element | Value |
|---|---|
| Hardness - Rockwell | M70 |
| Elongation at break( % ) | 250 |
| Tensile modulus( GPa ) | 2 |
| Izod impact strength( J m⁻¹ ) | 60 |
| Tensile strength( MPa ) | 50 |
Thermal Properties
| Element | Value |
|---|---|
| Heat-deflection temperature - 0.45MPa( C ) | 150 |
| Heat-deflection temperature - 1.8MPa( C ) | 60 |
| Upper working temperature( C ) | 120 |
| Specific heat( J K⁻¹ kg⁻¹ ) | 1200-2300 |
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PBT Granules Formula: PBT
Nominal Granule Size: 5mm
Weight: 5000g
Type: Injection Moulding
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PBT Film Formula: PBT
Thickness: 0.55mm
Length 1: 100mm
Length 2: 100mm
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UOM Code: 388-727-27
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PBT Coil Formula: PBT
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UOM Code: 140-314-47
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