Polypropylene - PP 20% Talc Filled

Sep 6 2001

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.