thermosoftening and thermosetting Flashcards
1
Q
what are feature of thermosoftening polymers
A
- they melt
- it can be reshaped while soft
- they can go back to solid when cooled
2
Q
what does a thermosoftening polymer look like
A
2
Q
what happens when thermosoftening polymers are heated
A
- intermolecular forces break and the polymer strands separate from eachother and he polymer melts
3
Q
what happens when thermosoftening polymers are cooled
A
- we reform the intermlecular forces and polymer goes back to solid
4
Q
do thermosetting polymers melt when heated
A
NO
5
Q
what does a thermosetting polymer look like
A
6
Q
how are the polymer chain connected in a thermosetting polymer
A
with strong crosslinks
7
Q
why dont thermosetting polymers melt when heated
A
- because the strong crosslinks cannot be broken by heats
