Polyphenylene Oxide - Modified - PPO 30% Glass Fibre Reinforced; Fire Retardant

Polymer Type

Thermoplastic

Advantages

Better tensile strength, flexural modulus, maximum operating temperature, heat distortion temperature and flammability characteristics compared with unmodified PPO. Halogen free flame retarding additives available.

Disadvantages

Significantly reduced elongation at break, reduced notched izod impact strength and electrical characteristics compared with unmodified PPO. A mould temperature of about 110°C (230°F) is recommended to avoid mouldings with moulded-in strain. Inclusion of glass can cause anisotropy in mouldings.

Typical Properties

Property

Value

Density (g/cm3)

1.3

Surface Hardness

RL108

Tensile Strength (MPa)

120

Flexural Modulus (GPa)

9

Notched Izod (kJ/m)

0.1

Linear Expansion  (/°C x 10-5)

2.5

Elongation at Break (%)

4

Strain at Yield (%)

N/A

Max. Operating Temp. (°C)

105

Water Absorption (%)

0.05

Oxygen Index (%)

32

Flammability UL94

V1

Volume Resistivity (log ohm.cm)

16

Dielectric Strength (MV/m)

14

Dissipation Factor 1kHz

0.002

Dielectric Constant  1kHz

3

HDT @ 0.45 MPa (°C)

140

HDT @ 1.80 MPa (°C)

137

Material. Drying  hrs @ (°C)

2 @100

Melting Temp. Range (°C)

250 - 290

Mould Shrinkage (%)

0.2

Mould Temp. Range (°C)

70 -  95

Applications

Cooling fans, electrical components such as transformers, plug connectors and sockets, support frame for printed circuit boards, fuse boxes, rear panels for TV sets, chassis for video recorders. Components in central heating systems, eg. Water pressure controller.

 

Source : Abstracted from Plascams

For more information on Plascams please visit RAPRA Technology Ltd.

 

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