Unplasticised Polyvinyl Chloride - Unplasticised PVC - UPVC High Impact

Aug 30 2001

Polymer Type

Thermoplastic

Advantages

Good impact properties and high elongation at break compared with unmodified uPVC. Some impact modifiers can also be considered as processing aids.

Disadvantages

Lower tensile strength, flexural modulus and slightly reduced heat distortion temperature compared to unmodified uPVC. Some impact modifiers can cause material to be opaque and can cause severe stress whitening.

Typical Properties

Property

Value

Density (g/cm3)

1.38

Surface Hardness

RD76

Tensile Strength (MPa)

42

Flexural Modulus (GPa)

2.5

Notched Izod (kJ/m)

0.6

Linear Expansion  (/°C x 10-5)

7

Elongation at Break (%)

150

Strain at Yield (%)

3.8

Max. Operating Temp. (°C)

50

Water Absorption (%)

0.1

Oxygen Index (%)

40

Flammability UL94

V0

Volume Resistivity (log ohm.cm)

14

Dielectric Strength (MV/m)

14

Dissipation Factor 1kHz

0.025

Dielectric Constant  1kHz

3.1

HDT @ 0.45 MPa (°C)

67

HDT @ 1.80 MPa (°C)

63

Material. Drying  hrs @ (°C)

2 @ 75

Melting Temp. Range (°C)

150 - 220

Mould Shrinkage (%)

0.4

Mould Temp. Range (°C)

20 -  40

Applications

Furniture sections, skirting boards, roller blinds, garage doors, folding screens, electrical insulating conduits, cable ducts, tubes and profile sections, pipes, gutters, components for computers, VDUs, keyboards, telecommunications equipment, battery cases, toilet tank valves, pump switches.

 

Source : Abstracted from Plascams

For more information on Plascams please visit RAPRA Technology Ltd.

 

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