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Name: Bonita P.
Status: other
Age: 40s
Location: N/A
Country: N/A
Date: 2000


Question:
What is polystyrene foam made from?


Replies:
Bonita,

Polystyrene foam is kind of plastic, a polymer made of (an inter-linked network of) styrene molecules. Styrene is a compound composed of carbon and hydrogen. When manufactured as an insulating material, the liquid form of the polymer is "blown" into a foam by in-situ generation of a large number of VERY tiny bubbles of gas. The polymer and the entrapped gas interfere with heat flow through the material. Thus, its insulating property.

Regards,
ProfHoff



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