Thermoplastics Flashcards
What percentage of plastics are made from oil?
95%
What can plastics be made from other than oil?
Animal and vegetable matter Making Bioplastics
Why are plastics used for packaging?
Tough Lightweight Clear Economical Aesthetically USEFUL
What are the properties of Bio Plastics?
Biodegradable based on plants Can be clear or coloured
What sort of plastic: is biodegradable based on plants can be clear or coloured
Bio plastics
What are the properties of Cellulose Acetate?
Partially biodegradable- Plants are and chemicals aren’t
Clear
Not tough
What sort of plastic is:
- Partially biodegradable
- Clear
- Not Tough
Cellulose Acetate
What are bioplastics used for?
All sorts of food packaging
What is Cellulose Acetate used for?
Film for photocopiers and cameras
What are the properties of Acrylic?
Stiff but brittle
Can be shaped
Can be polished to be glossy
Wide range of colours
What sort of plastic is:
- Stiff but brittle
- Comes in many colours
- Can be shaped and polished for gloss
Acrylic
What is Acrylic used in?
Point of Sale Stands
What plastic has this symbol?
PET
Polyethylene Terepthalate
What are the properties of PET?
Non-biodegradable
Tough
Good at keeping ‘fizz’ in
What plastic has these properties
is good at keeping the fizz in
is tough
PET
Polyethylene Terepthalate
What plastic is used in bottles?
What are the properties of Polystyrene?
Not tough
Can be vaccum formed
What plastic is:
Not tough
And can be vacuum formed
Polystyrene
What is Polystyrene used for?
Shell forms for packaging
CD jewel cases
Yogurt Pots
What are the properties of Expanded Polysterene or Styrofoam?
Very light
Shock absorbing
What plastic has these properties:
Very light
and impact absorbing
Styrofoam or Expanded Polysterene
What is Expanded Polysterene or Styrofoam used for?
Protective packaging
Block modelling
What are the properties of PVC?
Tough
Resists sratching
What type of Plastic is:
Tough
and resists scratching
PVC
Poly Binyl Chloride
What is PVC used for?
Games pieces
Blister packaging
What is Polypropylene’s properties?
It is flexible
What plastic is felexible?
Polypropylene
What is used in Crisp Packets?
Polypropolene
What is used in Blister packs?
PVC
What is used in Yogurt pots?
Polystyrene
What is used in Jewel Cases for CDS?
Polystyrene
What is used for block modelling and protectiv epackaging?
Expanded Polystyrene/Styrofoam
What is a Thermoplastic?
A thermoplastic is a plastic that can be reshaped many times once it is heated.
What is this the symbol for?
HDPE
High Density Polytethylene
What plastic has this symbol?
Polyvinyl Chloride
PVC
What plastic has this symbol?
Low Density Polyethylene
LDPE
What plastic has this symbol?
Polypropylene
What plastic has this symbol?
Polystyrene
