Additives To Polymers (Leaving Cert Engineering): Quizzes
📚Quizzes
Practise the questions
12 questions from this quiz
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Practise the questions
12 questions from this quiz
What is the main purpose of additives in polymers?
What is the main purpose of additives in polymers?
To modify properties for applications
What are colour pigments used for in polymer manufacturing?
What are colour pigments used for in polymer manufacturing?
To control the final colour of product
Why is sawdust added as a filler to polymers?
Why is sawdust added as a filler to polymers?
To increase bulk and reduce cost
Which filler creates lightweight composites used in Formula 1 racing cars?
Which filler creates lightweight composites used in Formula 1 racing cars?
Carbon fibre
What is the main function of plasticisers in polymers?
What is the main function of plasticisers in polymers?
To increase flexibility and workability
What two factors cause polymer chains to break down over time?
What two factors cause polymer chains to break down over time?
UV radiation and oxygen
What is the purpose of stabilisers and antioxidants in polymers?
What is the purpose of stabilisers and antioxidants in polymers?
To slow degradation and extend life
Which application critically requires flame retardants in polymers?
Which application critically requires flame retardants in polymers?
Aircraft interior foam seating
What do lubricants improve during polymer processing?
What do lubricants improve during polymer processing?
Mouldability and flow
Who discovered vulcanised rubber and when?
Who discovered vulcanised rubber and when?
Charles Goodyear in 1844
What element is added to natural rubber during vulcanisation?
What element is added to natural rubber during vulcanisation?
Sulphur
What does vulcanisation transform natural rubber into?
What does vulcanisation transform natural rubber into?
A tough, durable thermoset