Polypropylene - PP 20% Talc Filled

Polymer Type

Thermoplastic

Advantages

Good stiffness, hardness, dimensional stability and reduced creep compared with unmodified PP. Improved flow properties compared with material of same calcium carbonate loading.

Disadvantages

Modification causes embrittlement; poor surface appearance and low elongation at break compared with unmodified PP.

Typical Properties

Property

Value

Density (g/cm3)

1.04

Surface Hardness

RR85

Tensile Strength (MPa)

32

Flexural Modulus (GPa)

2.3

Notched Izod (kJ/m)

0.03

Linear Expansion  (/°C x 10-5)

7

Elongation at Break (%)

15

Strain at Yield (%)

7

Max. Operating Temp. (°C)

100

Water Absorption (%)

0.02

Oxygen Index (%)

17

Flammability UL94

HB

Volume Resistivity (log ohm.cm)

16

Dielectric Strength (MV/m)

20

Dissipation Factor 1kHz

0.002

Dielectric Constant  1kHz

2.5

HDT @ 0.45 MPa (°C)

130

HDT @ 1.80 MPa (°C)

78

Material. Drying  hrs @ (°C)

NA

Melting Temp. Range (°C)

240 - 290

Mould Shrinkage (%)

1

Mould Temp. Range (°C)

30 -  50

Applications

Automotive "under bonnet" applications, e.g. cooling fans, housing for electrical systems, air ducting. Facia panels, headlight housing. Washing machine components. Housing for electric irons and toasters, Kettle bodies. Garden furniture.

 

Source : Abstracted from Plascams

For more information on Plascams please visit RAPRA Technology Ltd.

 

Date Added: Sep 6, 2001 | Updated: Jun 11, 2013
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