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Chlorinated Polyvinyl Chloride Properties

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POLYVINYL CHLORIDE (PVC) PROPERTIES


Polymer Type

Thermoplastic

Advantages

Service temperature of 90°C (190°F), accompanied by self-extinguishing properties. Reasonable weathering performance.

Disadvantages

More difficult to process than UPVC or Plasticised PVC. PVC is the most widely used member of the vinyl family. It is most commonly used in pipe and fittings. PVC offers excellent corrosion and weather resistance. It has a high strength-to-weight ratio and is a good electrical and thermal insulator. PVC is also self-extinguishing per UL flammability tests. PVC may be used to temperatures of 140°F (60°C) and is readily available in sheets, rods, and tubing. PVC may be cemented, welded, machined, bent and shaped readily.

Typical properties for CPVC

Property

Value

Density (g/cm3)

1.52

Surface Hardness

RR120

Tensile Strength (MPa)

58

Flexural Modulus (GPa)

3.1

Notched Izod (kJ/m)

0.06

Linear Expansion  (/°C x 10-5)

7

Elongation at Break (%)

30

Strain at Yield (%)

5

Max. Operating Temp. (°C)

90

Water Absorption (%)

0.1

Oxygen Index (%)

50

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)

110

HDT @ 1.80 MPa (°C)

105

Material. Drying  hrs @ (°C)

2 @ 75

Melting Temp. Range (°C)

220 - 240

Mould Shrinkage (%)

0.5

Mould Temp. Range (°C)

40 -  70

NOTE: The information contained herein are typical values intended for reference and comparison purposes only. They should NOT be used as a basis for design specifications or quality control. All values at 73°F (23°C) unless otherwise noted.

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