GEHR Plastics PPS Polyphenylene Sulfide

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GEHR Plastics PPS Polyphenylene Sulfide
Categories:	Polymer; Thermoplastic; Polyphenylene Sulfide (PPS)
Material Notes:	The linear polyphenylene sulfide belongs to the semi-crystalline materials and offers a very high mechanical capacity, thermal and chemical resistance distinguished at the same time, high dimensional stability, and creep strength. The LOI belongs to the highest of polymers. By the reinforcement with glass polymers strength is achieved, which is comparable with light metal. PPS closes the gap between the technical synthetics and PEEK with its strength and economy. Properties very high strength and rigidity high hardness high thermostability high dimensional stability very high chemical resistance very good insulating properties high weather resistance high resistance to hydrolysis Applications include components in machine-making, pump parts, fan parts, impellers, parts in the fuel and automotive sector.
Vendors:	Ensinger High Performance Plastics withstand severe environments, resist harsh chemicals, and perform well in extreme temperatures. They offer weight savings that have potential to drive lower cost systems. Click here to view all available suppliers for this material. Please click here if you are a supplier and would like information on how to add your listing to this material.
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Physical Properties	Original Value	Comments

Specific Gravity	1.35 g/cc	ISO 1183
Moisture Absorption at Equilibrium	0.010 %	ISO 62
Water Absorption at Saturation	0.020 %	ISO 62

Mechanical Properties	Original Value	Comments
Hardness, Rockwell M	90	ISO 2039
Hardness, Shore D	88	ISO 868
Ball Indentation Hardness	246 MPa	ISO 2039
Tensile Strength at Break	88.0 MPa	ISO 527
Tensile Strength, Yield	94.0 MPa	ISO 527
Elongation at Break	8.0 %	ISO 527
Modulus of Elasticity	3.70 GPa	ISO 527
Flexural Strength	143 MPa	ISO 178
Charpy Impact Unnotched	28.0 kJ/m²	ISO 179

Electrical Properties	Original Value	Comments
Volume Resistivity	3.00e+11 ohm-cm	IEC 60093
Surface Resistance	>= 1.00e+13 ohm	IEC 60093
Dielectric Constant	3.2 @Frequency 1e+6 Hz	IEC 60250
Dielectric Strength	30.0 kV/mm	IEC 60243-1
Comparative Tracking Index	125 V	IEC 60112

Thermal Properties	Original Value	Comments
CTE, linear	58.0 µm/m-°C	ISO 11359
Thermal Conductivity	0.250 W/m-K @Temperature 20.0 °C	ISO 22007-4
Melting Point	280 °C	DIN EN ISO 3146
Maximum Service Temperature, Air	230 °C	UL 746B
Deflection Temperature at 1.8 MPa (264 psi)	115 °C	ISO 75
Glass Transition Temp, Tg	97.0 °C	DIN EN ISO 3146
Flammability, UL94	V-0	UL 94
Oxygen Index	47 %	ASTM D2863

Compliance Properties	Original Value	Comments
FDA	Yes	Physiological indifference

Descriptive Properties
Acid Resistance	yes
Aromatic Resistance	limited
Bondability	yes
CKW Resistance	yes
Color	natural
Hydrocarbonate Resistance	yes
Hydroxide Resistance	limited
Ketone Resistance	yes
Physiological indifference	yes, EEC
Resistance Against Hot Water	yes
UV Stabilization	limited

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PGEHR035 / 79872

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