Sources and origins (AQA GCSE Design and Technology): Flashcards
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Practise the cards
15 cards from this deck
Main source of synthetic polymers
Main source of synthetic polymers
Crude oil
What crude oil formed from
What crude oil formed from
Ancient organic materials (plants & marine organisms)
Key chemicals in crude oil for polymers
Key chemicals in crude oil for polymers
Hydrocarbons
What are hydrocarbons
What are hydrocarbons
Molecules made of hydrogen & carbon atoms
Process to separate crude oil
Process to separate crude oil
Fractional distillation
Temperature crude oil heated to in distillation
Temperature crude oil heated to in distillation
400°C
Fraction crucial for polymer production
Fraction crucial for polymer production
Naphtha
Key hydrocarbon type for polymer production
Key hydrocarbon type for polymer production
Alkenes (contain double bonds)
What are monomers
What are monomers
Small molecules that link to form polymers
What is polymerization
What is polymerization
Process where monomers join to form polymers
What does cracking do
What does cracking do
Breaks large molecules into smaller ones
Why is cracking important for polymers
Why is cracking important for polymers
Produces alkenes suitable for polymerization
Polymer formed from ethylene
Polymer formed from ethylene
Polyethylene
Polymer formed from propylene
Polymer formed from propylene
Polypropylene
Safety risk in polymer production
Safety risk in polymer production
High temperatures & pressures (risk of explosions)