Thermosoftening And Thermosetting Plastics Flashcards
0
Q
What is thermosetting?
A
Sets when heated and will not melt again
1
Q
What is thermosoftening?
A
Will melt when heated and can be re shaped
2
Q
What is the structure of thermosoftening polymers?
A
tangled polymer chains
flexible
They have weak bonds
Low melting and boiling points
3
Q
What is the structure of thermosetting polymers?
A
Strong cross linking chains
High density
High melting and boiling points
4
Q
What is polymerisation?
A
small molecules joined to make longer molecules
eg ethane makes polyethane
