Material PET (polyethylene terephthalate)
PET has good barrier properties against oxygen and carbon dioxide. Therefore, it is utilized in bottles for mineral water. Other applications include food trays for oven use, roasting bags, audio/video tapes as well as mechanical components.

PET exists both as an amorphous (transparent) and as a semi-crystalline (opaque and white) thermoplastic material. Generally, it has good resistance to mineral oils, solvents and acids but not to bases.

The semi-crystalline PET has good strength, ductility, stiffness and hardness. The amorphous PET has better ductility but less stiffness and hardness.
Danish Name PET - thermoplastic polyester
Category Plastics, Thermoplastics
Products Bottle for mineral water
Trays for oven use
Oven foils
Audio and video tapes
Thermo scarf (fleece)
Processes Plastic moulding
Plastic injection moulding
Extrusion
Blow moulding
Vacuum forming
Fibre spinning
Similar materials PA (technical applications)
PBT (technical applications)
PVC (packaging material)
PE (packaging material)
PS (packaging material)
Price High cost plastic (see also Plastics general overview)
Environmen- tal notes Creation: Production of 1 kg of PET requires the equivalent of about 2 kg of oil (raw material and energy).

Use: It is very inflammable and inflammability can be reduced by the use of additives.

Disposal: Incineration in an incineration plant mainly produces water and carbon dioxide. Heating value is equivalent to 1/2 kg of oil. PET can be recycled into fibres that are used for polyester fabrics.
Photo Thomas Nissen (Computer graphics)
Copyright © 1996-2003 Torben Lenau
This page is part of Design inSite

Disclaimer