Polymers and Polymers in Depth Flashcards

1
Q

General polymer properties

A
  • lightweight
  • waterproof
  • tough
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2
Q

General polymer properties when given additives

A
  • transparent or opaque

- rigid or flexible

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3
Q

(1) PETE uses and properties

A
  • clear tough and shatter resistant

- soft drink bottles , mineral bottles and cooking oil bottles

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4
Q

(2) HDPE uses and properties

A
  • hard stiff and good chemical resistance

- milk crates , pipes, bowls

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5
Q

(3) PVC uses and properties

A
  • stiff , hard and good chemical resistance

- pipes, guttering and window frames

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6
Q

(4) LDPE uses and properties

A
  • range of colours , tough and chemical resistance

- squeezy bottles and bin liners

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7
Q

(5) PP uses and properties

A
  • hard and lightweight and resistance to work fatigue

- medical equipment , syringes and chair shells

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8
Q

(6) PS uses and properties

A
  • range of colours , stiff , hard , lightweight

- cups, disposable plates ,food containers

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9
Q

(7) OTHER uses and properties (Nylon)

A
  • hard and tough and resilient to wear

- gear wheels , bearing and clothing

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10
Q

(7) OTHER uses and properties (Acrylic)

A
  • stiff hard and easily polished

- baths and aircraft canopies

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11
Q

(7) OTHER uses and properties (TPE)

A
  • flexible and tough
  • combination of thermoplastics and elastomers
  • watch straps , scuba diving masks and remote control buttons
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12
Q

(9) ABS uses and properties (ABS)

A
  • tough , high impact strength and lightweight

- safety helmets , toys and car parts

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13
Q

Urea - formaldehyde

A
  • stiff hard brittle

- White electrical fittings and wood glue

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14
Q

Melamine - formaldehyde

A
  • stiff hard strong

- tableware , electrical insulation

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15
Q

Phenol - formaldehyde

A
  • stiff hard strong

- saucepan , dark electrical fittings

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16
Q

Epoxy Resin

A
  • good chemical and heat resistance

- adhesives

17
Q

Polyester Resin

A
  • strong hard brittle

- chair shells and car bodies

18
Q

Silicone

A
  • excellent heat and oil resistance

- flexible baking trays and bathroom sealant

19
Q

Neoprene

A
  • weather resistance and flame retardant

- wetsuits and knee and elbow pads

20
Q

Butadiene Rubber

A
  • resistant to abrasion and cracking
21
Q

Plasticisers

A
  • substances added to polymers to improve their flow properties for moulding
22
Q

Pigments

A
  • add colour
23
Q

Stabilisers

A
  • help prevent damage from UV light
24
Q

Catalysts

A
  • can be used to speed up the synthesis of polymers
25
Q

Anti-Oxidants

A
  • prevent oxidation