Polypropylene - PP Homopolymer

Sep 6 2001

Polymer Type

Thermoplastic

Advantages

Higher maximum operating temperature (100°C / 210°F), better tensile strength, modulus and HDT than unmodified PP copolymer.

Disadvantages

Lower notched impact strength, elongation at break and higher brittle temperature (0°C/30°F) than with unmodified PP copolymer.

Typical Properties

Property

Value

Density (g/cm3)

0.905

Surface Hardness

RR90

Tensile Strength (MPa)

33

Flexural Modulus (GPa)

1.5

Notched Izod (kJ/m)

0.07

Linear Expansion  (/°C x 10-5)

10

Elongation at Break (%)

150

Strain at Yield (%)

10

Max. Operating Temp. (°C)

100

Water Absorption (%)

0.02

Oxygen Index (%)

17

Flammability UL94

HB

Volume Resistivity (log ohm.cm)

17

Dielectric Strength (MV/m)

28

Dissipation Factor 1kHz

0.0001

Dielectric Constant 1kHz

2.28

HDT @ 0.45 MPa (°C)

105

HDT @ 1.80 MPa (°C)

65

Material. Drying hrs @ (°C)

NA

Melting Temp. Range (°C)

210 - 290

Mould Shrinkage (%)

1.5

Mould Temp. Range (°C)

20 - 60

Applications

Electrical housings: hair dryers, irons, coffee makers, toasters and deep fat fryers. Ring binders, cassette holders. Thermo-formed trays. Packaging, cups. Disposable syringes, clips, and the like.

 

Source : Abstracted from Plascams

For more information on Plascams please visit RAPRA Technology Ltd.

 

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  • EU Regulation of Chemicals REACH
  • Practical Guide to Polypropylene

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