Polyethylene Terephthalate - PET Crystalline

Sep 4 2001

Polymer Type

Thermoplastic

Advantages

Good balance of rigidity, strength and dimensional stability. Resistance to discolouration on heating. Excellent thermal and chemical resistance.

Disadvantages

Harmful odours can be evolved during processing. Adequate ventilation should be provided. Granules must be thoroughly dried before processing to limit the occurrence of hydrolytic degradation. High mould temperatures ( 140°-160°C / 285°-320°F ) required for optimum properties.

Typical Properties

Property

Value

Density (g/cm3)

1.37

Surface Hardness

RM85

Tensile Strength (MPa)

75

Flexural Modulus (GPa)

3

Notched Izod (kJ/m)

0.02

Linear Expansion  (/°C x 10-5)

8

Elongation at Break (%)

70

Strain at Yield (%)

4

Max. Operating Temp. (°C)

115

Water Absorption (%)

0.1

Oxygen Index (%)

20

Flammability UL94

HB

Volume Resistivity (log ohm.cm)

15

Dielectric Strength (MV/m)

17

Dissipation Factor 1kHz

0.002

Dielectric Constant  1kHz

3.3

HDT @ 0.45 MPa (°C)

115

HDT @ 1.80 MPa (°C)

80

Material. Drying  hrs @ (°C)

2 @130

Melting Temp. Range (°C)

260 - 280

Mould Shrinkage (%)

2

Mould Temp. Range (°C)

80 - 100

Applications

Transformer bobbins, housings for electrical appliances, industrial plugs and sockets.

 

Source : Abstracted from Plascams

For more information on Plascams please visit RAPRA Technology Ltd.

 

Tell Us What You Think

Do you have a review, update or anything you would like to add to this article?

Leave your feedback
(Logout)
Your comment type
Submit

Related Books

  • EU Regulation of Chemicals REACH
  • Thermal Degradation of Polymeric Materials
OIM Matrix™ Software Package

OIM Matrix™ Software Package

The OIM Matrix™ software package, which is offered as an option with OIM Analysis™, allows users to simulate EBSD patterns based on the physics of dynamical diffraction of electrons.

From EDAX

Sponsored Content

Editorial Highlights

The Current State of the Global Semiconductor Market

The Current State of the Global Semiconductor Market

The global semiconductor market has entered an exciting period. Demand for chip technology is both driving the industry as well as hindering it, with current chip shortages predicted to last for some time. Current trends will likely shape the future of the industry, which is set to continue to show

How are Graphene Batteries Made?

How are Graphene Batteries Made?

The primary distinction between graphene-based batteries and solid-state batteries lies in the composition of either electrode. Although the cathode is commonly changed, carbon allotropes can also be employed in fabricating anodes.

Newsletters you may be interested in

See all Newsletters »