Polybutylene terephthalate - 30% Glass Fiber Reinforced ( PBT 30% GFR )

Material Information

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Common Brand Names:
Celanex, Orgater, Valox

General Description:
General Description : The reinforcement of PBT with glass fiber results in large increases in strength, stiffness and heat distortion temperatures without loss of impact strength. The normal color is off-white. Applications include those for unfilled PBT together with high power lighting components, ignition rotors, distributor caps etc.

Chemical Resistance

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

Dielectric constant @1MHz	4
Dielectric strength ( kV mm^-¹ )	20
Dissipation factor @ 1kHz	0.002
Volume resistivity ( Ohmcm )	2x10¹⁴

Mechanical Properties

Elongation at break ( % )	2
Hardness - Rockwell	M93
Izod impact strength ( J m^-¹ )	70
Tensile modulus ( GPa )	12
Tensile strength ( MPa )	185

Physical Properties

Density ( g cm^-³ )	1.63
Flammability	HB
Limiting oxygen index ( % )	23
Water absorption - over 24 hours ( % )	0.15-0.35

Thermal Properties

Coefficient of thermal expansion ( x10^-⁶ K^-¹ )	20-70
Heat-deflection temperature - 0.45MPa ( C )	220
Heat-deflection temperature - 1.8MPa ( C )	200
Thermal conductivity @23C ( W m^-¹ K^-¹ )	0.24
Upper working temperature ( C )	120-200

All information and technical data are given as a guide only. Although every effort has been made to ensure that the information is correct, no warranty is given as to its completeness or accuracy.

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