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Product Design > Thermo plastics > Flashcards

Thermo plastics Flashcards

1
Q

Name the four generic properties of all thermoplastics.

A

They’re remouldable, recyclable, self coloured and self finishing.

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2
Q

What should all thermo plastics display?

A

The recyclable logo to help separation for recycling.

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3
Q

What is ABS used for?

A

High quality toys, mobile phones and safety helmets.

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4
Q

What is PET used for?

A

Bottles and food containers.

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5
Q

What is acrylic/PMMA used for?

A

Car headlight lenses and shop signs.

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6
Q

What is polypropylene used for?

A

Hard plastic chairs.

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7
Q

What is HIPS used for?

A

Cheap toys.

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8
Q

What is expanded polystyrene used for?

A

Packaging and insulation.

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9
Q

What is LDPE used for?

A

Toothpaste tubes and carrier bags.

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10
Q

What is HDPE used for?

A

Washing up bowls, buckets and milk bottles.

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11
Q

What is nylon used for?

A

Clothes and bearings.

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12
Q

What is UPVC used for?

A

Window frames and gutters.

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13
Q

What is PVC used for?

A

Packaging, tape and hose pipes.

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14
Q

What is polystyrene used for?

A

Disposable food containers and yoghurt pots.

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15
Q

What is line bending?

A

Lying acrylic over a simple heating element until it’s hot and then bending it over a mould or jig.

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16
Q

What is drape moulding?

A

Heating a thermoplastic in an oven until it’s hot and then draping it over a basic wooden mould.

17
Q

So do you believe in magic?

A

Boy you ought to know whatcha falling for.

18
Q

What is injection moulding?

A

Plastic granules being taken on an Archimedean screw through heaters so it melts before being pushed into a mould with 2 or more parts.

19
Q

What is blow moulding?

A

Placing a plastic tube in a hollow mould and having air blasted through the tube so it takes the shape of the mould.

20
Q

What is extrusion?

A

The same as injection moulding except without an end to the mould.

21
Q

What is rotational moulding?

A

Having melted plastic inside a hollow mould and having that mould rotate so that the plastic creates a hollow object such as a sphere.

Product Design (5 decks)

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