PLASTIC

Question 1

1.plasic products are made from…….which are chains of………..

Answer 1

POLYMERS

HYDRO-CARBONS

Question 2

2.these hydrocarbons come from…….which is drilled out of the ground

Answer 2

CRUDE OIL

Question 3

3.they are…..and comibined with other chemicals to make different plastics

Answer 3

REFINED

Question 4

4.they are then………in factories to make finished products

Answer 4

PROCESSED

Question 5

CRACKING

Answer 5

uses heat to break up the polymer chains into more useful products.

Question 6

NEGATIVE

Answer 6

• most use non-renewable resources (crude oil)
• most are not bio-degradable
• they are costly to recycle
• their production pollutes the plant

Question 7

POSITIVE

Answer 7

• several can be recycled
• some can be incinerated (burnt) to recover energy
• new bio-polymers are being developed

Question 8

THERMOPLASTICS (PROPERTIES)

Answer 8

• flexible when heated
• easily recycled
• can be re-formed
• plastic memory

Question 9

TYPES OF THERMOPLASTICS

Answer 9

POLYETHYLENE
HIGH DENSITY POLYETHYLENE
ACRYLIC
NYLON

Question 10

POLYETHYLENE

Answer 10

• clear, coloured easily
• recyclable, blow moulding
• food packing, bottles

Question 11

HIGH IMPACT POLYSTYRENE

Answer 11

• flat, coloured sheets
• flexible, vacuum forming, food safe
• food containers e.g yoghurt pots

Question 12

ACRYLIC

Answer 12

• thin+thick, bars, sheets
• tough but brittle, easily scratched
• car lights, modern baths

Question 13

NYLON

Answer 13

• smooth, film, sheet
• low friction,hard wearing
• clothing, tents, rope

Question 14

TYPES OF THERMO-SET PLASTICS

Answer 14

EPOXY RESIN

MELAMINE

Question 15

EPOXY RESIN

Answer 15

• 2 liquids (resin+hardener)
• sets clear and smooth
• stronger than normal resin
• waterproof coating, used in fibreglass

Question 16

MELAMINE (MF)

Answer 16

• moulded in to different shapes
• different colours
• food safe, light weight
• kitchenware, flat packed furniture.

Question 17

THERMO-SET PLASTICS (PROPERTIES)

Answer 17

• resistant to heat
• difficult to recycle
• can be burned of energy recovery
• cannot be reformed because of cross-links forms when they cool
• rigid

Question 18

BIO-PLASTICS (PROPERTIES)

Answer 18

• non-toxic
• bio-degradable in soil
• cannot be recycled
• made from vegetable starches

Question 19

TYPES OF BIO-PLASTICS

Answer 19

PLA
PCL
BIOPOL

Question 20

PLA

Answer 20

• smooth finish
• reels,non-toxic
• bottles, pots, phone cases

Question 21

PCL

Answer 21

• mouldable
• translucent pellet
• low temperature
• reuseable
• jewellery, personalised of products

Question 22

BIOPOL

Answer 22

• smooth finish
• slow bio-degradable
• quite brittle
• household items, food containers