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GCSE Product Design > Plastics > Flashcards

Plastics Flashcards

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1
Q

What are thermoplastics?

A

plastics that can be reheated and reshaped and dont undergo significant chemical change

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2
Q

What are thermosetting plastics?

A

plastics that cannot be reheated and remoulded. the bond is very strong

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3
Q

What are 7 different types of thermoplastics?

A 
acrylic
LDPE
HDPE
Polypropylene
PVC
Nylon
Hips
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4
Q

What are different types of thermosetting plastics?

A 
araldite
polyurethane
melamine formaldehyde
Urea Formaldehyde
Polyester resins
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5
Q

Are thermosetting plastics difficult to recycle?

A

yes

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6
Q

What are the properties of acrylic?

A

different colours
easy to cut and shape
used for safety glasses/baths/signs

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7
Q

What are the properties of LDPE?

A

tough
flexible
used for plastic bags and bottles

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8
Q

What are the properties of HDPE?

A

hard/rigid

used for machine parts, buckets and crates

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9
Q

What are the properties of polypropylene?

A

robust
strong
used for injection moulding
used for food containers/chairs/storage units

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10
Q

What are the properties of PVC?

A

tough
flexible
used for water pipes, raincoats and electrical wire coatings

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11
Q

What are the properties of nylon?

A

oily nature
used in engineering
used for gears/wheels/clothing

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12
Q

What are the properties of HIPS?

A

light
strong
can be vacuum formed
used for hard hats and trays

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13
Q

What are the properties of araldite?

A

comes in 2 parts
resin and catalysts
permanently bonds 2 things together

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14
Q

What are the properties of polyurethane?

A

forms basis of many varnishes
tough
water ressistent

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15
Q

What are the properties of melamine formaldehyde?

A

smooth surface
hygenic qualities
insulator
used for kitchen worktops

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16
Q

What are the properties of Urea formaldehyde?

A

high hardness
high toughness
scratch resistant
insulator

17
Q

What are the properties of polyester resins?

A

can be combined with fibreglass to produce GRP (glass reinforced plastic that is used for car body repairs and sailing boats

GCSE Product Design (5 decks)

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