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A-level Product Design > Polymers > Flashcards

Polymers Flashcards

1
Q

What is a Thermoplastic?

A

denoting substances (especially synthetic resins) that become plastic on heating and harden on cooling, and are able to repeat these processes.

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2
Q

What is a Thermosetting plastic?

A

denoting substances (especially synthetic resins) which set permanently when heated.

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3
Q

Thermoplastic or Thermosetting Plastic?

Nylon

A

Thermoplastic

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4
Q

Thermoplastic or Thermosetting Plastic?

Polythene

A

Thermoplastic

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5
Q

Thermoplastic or Thermosetting Plastic?

Polyester resin

A

Thermosetting plastic

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6
Q

Thermoplastic or Thermosetting Plastic?

Urea-Formaldehyde

A

Thermosetting plastic

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7
Q

Thermoplastic or Thermosetting Plastic?

Acrylic

A

Thermoplastic

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8
Q

Thermoplastic or Thermosetting Plastic?

Epoxy Resin

A

Thermosetting plastic

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9
Q

Thermoplastic or Thermosetting Plastic?

ABS - Acrylonitrile butadiene styrene

A

Thermoplastic

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10
Q

Thermoplastic or Thermosetting Plastic?

PVCu -Polyvinyl chloride

A

Thermoplastic

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11
Q

Thermoplastic or Thermosetting Plastic?

Melamine-formaldehyde

A

Thermosetting plastic

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12
Q

True or false?

ABS has a high melting point

A

False, ABS has a low melting point

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13
Q

How is ABS Manufacturing?

A

Injection moulding

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14
Q

ABS Uses (2)

A

Wall sockets

Lego

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15
Q

PVCu properties (3)

A

Strong
Lightweight
Cheap

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16
Q

PVCu Uses (1)

A

Used in construction

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17
Q

PVCu manufacturing

A

Emulsion

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18
Q

Acrylic properties (3)

A

Flexible
Shock resistant
Transparent

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19
Q

Acrylic Uses (1)

A

Windows

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20
Q

Acrylic manufacturing

A

bulk polymerization

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21
Q

Polythene Properties (3)

A

Low strength
Strong
Ductile

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22
Q

Polythene Uses (2)

A

Shopping bags

Water pipes

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23
Q

Polythene manufacturing

A

Extrusion

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24
Q

Nylon Properties (3)

A

Very strong
Washable
Heat resistant

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25
Q

Nylon Uses (3)

A

Swimwear
Sports clothing
Rope

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26
Q

Polyethylene properties (3)

A

Tensile
Electric insulation properties
Chemical resistant

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27
Q

Polyethylene Manufacturing

A

Injection moulding

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28
Q

Polyethylene Properties (3)

A

Elastic
Tough
Resistant to electricity

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29
Q

Polyethylene Uses (3)

A

Packaging
Toys
Car parts

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30
Q

What does PP stand for?

A

Polypropylene

31
Q

What does PE stand for?

A

Polyethylene

32
Q

What does HDPE stand for?

A

High density Polyethylene

33
Q

What does LDPE stand for?

A

Low density Polyethylene

34
Q

What does PET stand for?

A

Polyethylene Terephthalate

35
Q

PET properties (3)

A

Clear
Strong
Lightweight

36
Q

PET Uses (1)

A

Packaging food and beverages- plastic bottles

37
Q

Thermoplastic or Thermosetting Plastic?

LDPE (low-density polyethylene)

A

Thermoplastic

38
Q

Thermoplastic or Thermosetting Plastic?

HDPE (high-density polyethylene)

A

Thermoplastic

39
Q

Thermoplastic or Thermosetting Plastic?

PP (polypropylene)

A

Thermoplastic

40
Q

Thermoplastic or Thermosetting Plastic?

HIPS (high-impact polystyrene)

A

Thermoplastic

41
Q

Thermoplastic or Thermosetting Plastic?

PET (polyethylene terephthalate)

A

Thermoplastic

42
Q

Thermoplastic or Thermosetting Plastic?

uPVC (rigid polyvinyl chloride)

A

Thermoplastic

43
Q

Thermoplastic or Thermosetting Plastic?

Flexible Polyvinyl chloride

A

Thermoplastic

44
Q

True or False

HDPE is available in translucent form

A

True

44
Q

Gap fill - difference between LDPE and HDPE
Although both materials are polyethylene, they do have different properties. LDPE is ______, more flexible and melts at a _____ temperature than HDPE. LDPE is used in sandwich bags and other types of _________. HDPE is ______, has a ______ chemical resistance and can withstand higher temperatures.

A

Softer, lower, packaging, harder, higher

44
Q

What costs 5p and is made from LDPE?

A

Carrier bags

44
Q

What would you expect to find made out of LDPE in a grocery store? (5)

A

Food wrap film, food trays, bin liners, detergent bottles, general packaging

44
Q

True or False?

LDPE is not available in translucent form.

A

False - it can be translucent

44
Q

True or False?

LDPE can be formed by all Thermoplastic manufacturing methods

A

True

45
Q

What are some other mechanical Properties of LDPE? (3)

A

Good impact resistance
Low tensile strength
Highly ductile

46
Q

What are some limitations of LDPE? (3)

A

Flammable
Not very stiff
Not suited to extreme temperatures

47
Q

Why is LDPE good for food related items?

A

Good chemical resistance

48
Q

Why has HDPE recently been used for garden furniture? (2)

A

Resists the weather and can be cleaned easily

49
Q

True of false?

HDPE is not recyclable

A

False

50
Q

Why might HDPE be used for children’s furniture? e.g. chairs in schools. (3)

A

it has a Low density, tough and has high tensile strength

51
Q

What other products are made from HDPE? (3)

A

Chemical drums, water containers and household and kitchenware.

52
Q

What can be made from both LDPE and HDPE?

A

Toys

53
Q

Why is HDPE perfect for the injection moulding and blow moulding? (4)

A

It’s Tough, rigid, good stiffness, stress cracking resistance

54
Q

True or False?

PP is a good electrical Conductor.

A

False, PP is a good electrical insulator.

55
Q

What are the mechanical properties of PP? (3)

A

Good impact resistance, tough, good elasticity

56
Q

Why is PP used in injection moulding? (3)

A

Low liquid-state viscosity, low melting point, it’s a Thermoplastic

57
Q

Other than injection moulding, what is another common way PP is manufactured?

A

Extrusion Blow Moulding

58
Q

True or False

PP can be used for car dashboards and bumpers

A

True

59
Q

Gap Fill - PP uses
Polypropylene fibre is a main material in home furnishings such as __________ and indoor-outdoor carpets. Numerous industrial end uses exist as well, including ____ and cordage, disposable non-woven fabrics for _______ and _______ applications, and nonwoven fabrics for ground stabilization and reinforcement in ____________ and road paving.

A

Upholstery, rope, Nappies, medical, construction

60
Q

Is ABS opaque or translucent?

A

Can be both translucent and opaque

61
Q

What plastic is LEGO made from?

A

ABS

62
Q

Why can ABS be injection moulded? (2)

A

Low ,elating point and is a Thermoplastic

63
Q

What are the mechanical properties of ABS? (3)

A

Hard, Tough, good impact resistance

64
Q

What plastic is used more in the food industry?

LDPE or ABS

A

ABS

65
Q

Why is LDPE used more than ABS in the food industry?

A

Cheaper

66
Q

True or false?

ABS is biodegradable

A

False, it is not

67
Q

Gap fill - ABS in households
Used of ABS in appliances include appliance _______ panels, housings (shavers, _______ cleaners, food processors), ____________ liners, ________ keycaps are commonly made out of ABS.

A

Control, vacuum, refrigerator, Keyboard

68
Q

Why might pipes be made from ABS?

A

It doesn’t rust or corrode

69
Q

What does HIPS stand for?

A

High-impact polystyrene

A-level Product Design (24 decks)

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