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WorksheetsPolymers
Total questions: 8
Worksheet time: 6mins
What are the two types of plastic?
Heatsetting and Heatforming
Thermosetting and Thermoforming
Hydrosetting and Hydroforming
Thermostopping and Thermomoving
Thermosetting polymers...
won't decompose with time
cannot be reformed with the use of heat
can be reformed with the use of heat
will decompose with time
Thermoforming polymers
(a)
Polymer means...
a natural, delicate balance of natural materials and man-made materials
A natural substance or fibre made up of smaller bonded units
A substance or fibre that has a molecular structure made up of much smaller bonded units
Man-made boards that are available in large flat sheets
Thermosetting and thermoforming plastics are derived from...
naturally occurring compounds
plant based starches
synthetic compounds
Thermoforming plastics are used for...
vacuum forming
injection moulding
blow moulding
Polypropylene's properties are...
(a)
Urea Formaldehyde's properties are...
(a)
