Polypropylene - PP Structural Foam

Polymer Type

Thermoplastic

Advantages

Increased rigidity for given weight of material. Can be used with conventional injection moulding and extrusion machines. Very low density. Large low-pressure mouldings possible.

Disadvantages

Low tensile strength and modulus and significantly reduced elongation at break compared with unmodified PP.

Typical Properties

Property

Value

Density (g/cm3)

0.6

Surface Hardness

RR80

Tensile Strength (MPa)

15.8

Flexural Modulus (GPa)

0.8

Notched Izod (kJ/m)

0.05

Linear Expansion  (/°C x 10-5)

16

Elongation at Break (%)

40

Strain at Yield (%)

N/Y

Max. Operating Temp. (°C)

95

Water Absorption (%)

0.02

Oxygen Index (%)

17

Flammability UL94

HB

Volume Resistivity (log ohm.cm)

16

Dielectric Strength (MV/m)

26

Dissipation Factor 1kHz

0.001

Dielectric Constant  1kHz

2.2

HDT @ 0.45 MPa (°C)

72

HDT @ 1.80 MPa (°C)

46

Material. Drying  hrs @ (°C)

NA

Melting Temp. Range (°C)

200 - 280

Mould Shrinkage (%)

2.3

Mould Temp. Range (°C)

15 -  30

Applications

Trays, cups for hot and cold drinks. Folding boxes. Decorative film and tape. Tape yarns for carpet backing. Pallets.

 

Source : Abstracted from Plascams

For more information on Plascams please visit RAPRA Technology Ltd.

 

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