Material PS - polystyrene
Polystyrene is an inexpensive amorphous thermoplast that is vitreous, brittle and has low strength. However it is also hard and stiff. Foamed PS is used for packaging and insulation purposes.

It is not weather resistant, and therefore not suitable for outdoor uses.

PS is transparent (it transmits about 90% of the sunlight) and has unlimited dyeing possibilities. Assembly can be done with glueing.
Danish Name PS - polystyren
Category Plastics, Thermoplastics
Products CD and MC covers
Disposable drinking glass
Glass for bicycle lamp
Salad bowl
Razor, ordinary
Razor, biodegradable
Processes Plastic moulding
Plastic injection moulding
Extrusion
Vacuum forming
Glueing
Price Low cost plastic (see also Plastics general overview)
Environmen- tal notes Creation: Production of 1 kg of PS requires the equivalent of about 2 1/4 kg of oil (raw material and energy). Styrene monomers are harmful to health.

Use: Polystyrene burns easily but slowly, with development of thick sooty smoke. Inflammability can be reduced by addition of special additives.

Disposal: Incineration in an incineration plant mainly produces water and carbon dioxide. Heating value is equivalent to 1 kg of oil.
Additional Info PS is resistant to water, acids, bases and detergents, but it dissolves in almost all solvents.
Photo Thomas Nissen (Computer graphics)
Copyright © 1996-2003 Torben Lenau
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