Polystyrene is a very poor conductor of heat. This is why its used as an insulator in some products.
low or medium density will, but it would take a laboratory to measure it.
Polystyrene is a thermoplastic material.
It is a thermosetting polymer
Polyethylene is a thermoplastic polymer.
Polyvinyl chloride is a thermoplastic polymer.
Vacuum forming is one of the most common methods of processing plastic. The vacuum forming process involves heating a sheet of plastic until it is soft.
thermosetting plastic
thermoforming plastic is completley the oppisite of thermosetting!
It is a thermosetting polymer
Polyethylene is a thermoplastic polymer.
Polyvinyl chloride is a thermoplastic polymer.
It is a thermoplastic! :)
No, high Impact Polystyrene (HIPS) is a thermoplastic. It melts when heated.
Vacuum forming is one of the most common methods of processing plastic. The vacuum forming process involves heating a sheet of plastic until it is soft.
thermosetting plastic
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/
HIPS High Impact Polystyrene is particularly suitable for thermoforming, it is a tough, rigid material and its high impact strength means it can be guillotined, punched, routered or sawn without difficulty.
acrylic and this link
Expanded Polystyrene