Topic 4.2D: Plastic Flashcards

1
Q

Thermoplastics

A

linear chain molecules with weak secondary bonds between chains, can be reformed

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2
Q

thermoset plastics

A

linear chain molecules with strong primary bonds between the adjacent polymer chains

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3
Q

Polypropylene (thermo)

A

easily formed, used for: shopping bags, packaging, bottle caps, straws

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4
Q

Polyethylene (PE): High density (HPDE) and low density (LDPE) (thermo)

A

HPDE: detergent and shampoo bottles
LPDE: plastic wrap

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5
Q

High impact polystrene (HIPS) (thermo)

A

easy to machine and shape, impact resistant, packaging, disposable cutlery

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6
Q

acrylonitrile butadiene styrene (ABS) (thermo)

A

low cost, heat resistant, dimensional stability, legos

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7
Q

Polyethylene terephthalate (PET) (thermo)

A

light weight, shatter resistant. used for: water bottles, consumer product containers, make-up containers

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8
Q

Urea-formaldehyde (thermoset)

A

electrical cases, high-heat contexts. High tensile strength

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9
Q

Polyurethane (PU) (thermoset)

A

Wheels and castors. High abrasion resistance

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10
Q

Melamine Resin (thermoset)

A

kitchen worktops, kitchenware

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11
Q

Epoxy resin (thermoset)

A

general purpose adhesive. tough, high compressive strength

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