what will happen if we pour boiling water in PET?
Answers
Answer:
When plastic bottles are formed the soft polymer is moulded by blowing hot air into a preform within a mould that in turn is formed from pellets of the polymer such as PET, polyethylene, polycarbonate etc. The preform resembles a boiling tube that is stretched under internal hot air pressure to fit the mould, the size of the final bottle.
It is then water-cooled to a rigid form and removed from the mould. The stretching and rapid cooling generates considerable stress that remains frozen into the bottle. Reheating the bottle allows these stresses to be relieved which is why the bottle contracts and starts to collapse. The degree of collapse is related to the softening point of the polymer which varies considerably among polymers, PET having one of the highest softening temperature among polymers used to mould plastic bottles.
I hope this is help you..
Answer:
it will get twist or can also get shrink