Graphics Theory - Polymers

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What are polymers simply known as?
Plastics
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Name 5 types of plastics?
1/ PET 2/ HDPE 3/ PVC 4/LDPE 5/PP 6/PS 7/Acetate 8/Acrylic
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what are the properties of PET?
Excellent barrier, durable, lightweight
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Uses of PET
Fizzy drinks bottles
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What are the properties of HDPE?
Durable, lightweight, rigid
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Uses of HDPE
Flexible bottles (e.g washing up liquid), detergents
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What are the properties of PVC?
Protects products from moisture, strong, flexible, durable
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Uses of PVC
Toiletry packaging, water, fruit juices
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What are the properties of LDPE?
Tough, durable, lightweight, flexible
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Uses of LDPE
Cling film, milk/ribena carton coating
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What are the properties of PP(polypropylene)?
Durable, lightweight, very flexible
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Uses of PP
Yogurt, butter tubs, sweet wrappers
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What are the properties of PS(polystyrene)?
Durable, lightweight, rigid
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Uses of PS
Food packaging, egg cartons
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What are the properties of Acetate?
Thin, transparent, flexible
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Uses of acetate
Flexible, easily cut , windows on products
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What are the properties of Acrylic?
Wide range of colours available, rigid, brittle, heavy, glossy
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Uses of acrylic
Signage, point of sale, laser cut items
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What are the two catergories for plastics
Thermosetting plastics and Thermoplastics
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What are thermosetting plastics?
plastics which do not go back to their original shape when heated.
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What are thermo plastics
Plastics which can be reheated and remoulded
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Name some general properties of polymers
Can be formed, inexpensive, recyclable, available in colours, lightweight, durable, easy to print on
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Why are the codes for all polymers around the world the same
so that they can be easily recognised internationally and helps polymers from being sorted when being recyled
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What happens when PVC (polyvinyl chloride) is incinerated?
It produces HCL (hydrochloric acid) which is harmful to the environment
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What is styrofoam typically used for?
For block modelling and insulation
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What colours does styrofoam come in?
Blue and Pink
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Why is styrofoam an excellent modelling material?
It is easy to shape using normal hand tools and can be sanded to give a smooth finish and can be glued together to make different thicknesses
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Why does styrofoam need to coated before spray painting?
so that paint is applied on a smooth surface and also prevents the foam from melting or being damaged by the spray paint.
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What is acrylic also known as?
Perspex
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What is a special property of acrylic compared to other polymers?
It can withstand extreme weather conditions as it is chemical resistant and durable
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what are some disadvantages of acrylic (perspex) ?
It can scratch easily as well as snap as it is brittle
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Other cards in this set

Card 2

Front

Name 5 types of plastics?

Back

1/ PET 2/ HDPE 3/ PVC 4/LDPE 5/PP 6/PS 7/Acetate 8/Acrylic

Card 3

Front

what are the properties of PET?

Back

Preview of the front of card 3

Card 4

Front

Uses of PET

Back

Preview of the front of card 4

Card 5

Front

What are the properties of HDPE?

Back

Preview of the front of card 5
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