GEHR Plastics PPE Polyphenylene Ether

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GEHR Plastics PPE Polyphenylene Ether (discontinued **)
Categories:	Polymer; Thermoplastic; Polyphenylene Ether/PPO
Material Notes:	Polyphenylenether belongs to the group of amorphous materials and can be used in temperatures ranging from -50°C to approximately 105°C. PPE exhibits a high impact strength, a low water absorption, a very high dimensional stability and a very low tendency to creep. The electrical properties will not be influenced by the surrounding frequencies and therefore can be used in a lot of applications in electrical engineering Properties high dimensional stability low tendency to creep high thermostability high impact strength good electrical characteristics over a wide frequency range high resistance to hydrolysis self-extinguishing not resistant to some hydrocarbons Applications include parts for electrical engineering and household utensils, shafts, gear wheels, and parts in the hydrolysis.
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Physical Properties	Original Value	Comments

Specific Gravity	1.06 g/cc	ISO 1183
Water Absorption at Saturation	0.23 %	ISO 62

Mechanical Properties	Original Value	Comments
Hardness, Shore D	86	DIN 53505
Ball Indentation Hardness	100 MPa	ISO 2039-1
Tensile Strength, Yield	55.0 MPa	ISO 527
Elongation at Break	30 %	ISO 527
Elongation at Yield	5.0 %	ISO 527
Modulus of Elasticity	2.30 GPa	ISO 527
Flexural Strength	75.0 MPa	ISO 178
Charpy Impact, Notched	15.0 kJ/m²	ISO 179
Coefficient of Friction	0.35	DIN 53375

Electrical Properties	Original Value	Comments
Volume Resistivity	>= 1.00e+15 ohm-cm	VDE 0303
Surface Resistance	>= 1.00e+15 ohm
Dielectric Constant	2.7 @Frequency 1e+6 Hz
Dielectric Strength	19.0 kV/mm	VDE 0303
Dielectric Loss Index	0.0010 @Frequency 1e+6 Hz	DIN 53483
Comparative Tracking Index	175 V	IEC 60112

Thermal Properties	Original Value	Comments
CTE, linear	90.0 µm/m-°C	DIN 53752
Thermal Conductivity	0.220 W/m-K @Temperature 20.0 °C
Maximum Service Temperature, Air	90.0 °C
Deflection Temperature at 1.8 MPa (264 psi)	115 °C	ISO 75
Vicat Softening Point	135 °C	VST/B/50; ISO 306
Minimum Service Temperature, Air	-40.0 °C
Flammability, UL94	HB	UL 94

Descriptive Properties
Acid Resistance	yes
Aromatic Resistance	no
Bondability	yes
CKW Resistance	no
Hydrocarbonate Resistance	limited
Hydroxide Resistance	yes
Ketone Resistance	yes
Resistance Against Hot Water	yes
UV Stabilization	fair

**
Materials flagged as discontinued () are no longer part of the manufacturer’s standard product line according to our latest information. These materials may be available by special order, in distribution inventory, or reinstated as an active product. Data sheets from materials that are no longer available remain in MatWeb to assist users in finding replacement materials.

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PGEHR014 / 79851

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