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What are the advantages and disadvantages of rigid polystyrene?
Wiki User
∙ 11y ago
Pure solid polystyrene is a colorless, hard plastic with limited flexibility. It is a by-product of petroleum refinement and has been in widespread use following WW2.
Advantages
It can be cast into molds with fine detail.
It can be transparent
Can also be coloured.
Very economical
Can be aerated (with CO2) to make excellent insulator
Can be foamed between card to make lightweight rigid panels
In its various forms it is usually easy to work
It is versatile -uses range from cutlery to explosives
Can be recycled - thermoplastic so can be remoulded indefinitely
Disadvantages
Older types of Expanded polystyrene contain CFCs
Flammable (especially if oil painted)
It takes a long time to decompose and is regarded as a pollutant -eg McDonalds packaging
Expanded foam is uneconomical to collect for recycling
Poor resistant to organic solvents.
Wiki User
∙ 11y ago
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Why is the glass transition temperature of polystyrene greater than of polypropylene?
Higher the glass transition temperature of the polystyrene can be attributed to the fact that sterically rigid bulky aromatic moieties like benzene in the styrene compared to that of aliphatic polypropylene
What is rigid polystyrene?
Rigid polystyrene is a hard plastic Rigid polystyrene is a hard plastic
What are the uses of rigid polystyrene?
The uses of rigid polystyrene are containers such as cosmetic bottles, TV cabinets. etc. In its sheet form it is used to make disposable cups.
What are the advantages and disadvantages of Polystyrene sheet?
It is a good insulator, very light, and can be injection moulded into many shapes. It is fragile and easily snaps and crumbles.
What are the properties of rigid polystyrene?
ice cream cakes and onion bargees
Is styrofoam the same as polystyrene?
They are made from the same polymer, polystyrene. Usually polystyrene is clear, hard and rigid, for example in CD cases. However, styrofoam is created by blowing air through liquid polystyrene. The bubbles are locked in the polystyrene as it solidifies, giving the syrofoam used in packaging and cups. The reason it is compressible is because the air is compressed, rather than the hard, rigid polystyrene itself.
What element makes up polystyrene?
Polystyrene is a synthetic polymer made from the monomer styrene. This monomer is a liquid petrochemical and can be rigid or foam.
How do you spell pollistiring?
The likely word is polystyrene (a rigid plastic, also the basis for styrofoam).
What is the difference between rigid polystyrene plastic and expanded polystyrene?
Rigid polystyrene plastic is a closed cell of light weight, rigid & foam plastic that is derived from petroleum and natural gas by products. It is hard plastic in one word. This is used to make plastic containers and insulators. On the other hand, expanded polystyrene is derived by expanding the regular foam molecules by 50 times their volume using a blowing agent (pentane gas). This is used to make packaging materials. Source: http://www.polystyrene.uk.com/
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