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PLASTICS (Formation techniques (Moulding (Injection moulding, Blow…
PLASTICS
Formation techniques
Extrusion
Used to form; wrapping, lining for electric cables, tubes and pipes.
Vacuum forming
Used to form: bathtubs, dashboards, shop signs and egg boxes
Lamination
Used to form: worktops, to cover surfaces of kitchen cupboards and drawers
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What are plastics?
Plastics are materials formed by polymers. The polymers in plastics are made from long chains of carbon atoms.
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Examples: Plastic bottles, shampoo bottles.
What do we use them for?
They are used for making containers and packaging. We also use plastics in many economic and industrial sectors.
We use plastics, for example in telecommunications, transport, construction, medicine, agriculture, and information technology.
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Properties of plastics
Strength, elasticity, rigidity and flexivility
Other properties
Mechanical, acoustic, electrical and thermal.
Joining plastic
When plastics have been formed, shaped and finished, we can join pieces to each other.
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