Elastomers (Leaving Cert Engineering): Quizzes
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Practise the questions
12 questions from this quiz
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Practise the questions
12 questions from this quiz
What category of materials do elastomers represent?
What category of materials do elastomers represent?
A specialised category of polymers
What happens to elastomers when the applied force is removed?
What happens to elastomers when the applied force is removed?
They return to their original shape
Which two words combine to form the term 'elastomer'?
Which two words combine to form the term 'elastomer'?
Elastic and polymer
Where does the molecular architecture of elastomers sit?
Where does the molecular architecture of elastomers sit?
Between thermoplastics and thermosets
How are polymer chains arranged in elastomers?
How are polymer chains arranged in elastomers?
Randomly oriented (amorphous)
What type of crosslinking do elastomers possess?
What type of crosslinking do elastomers possess?
Limited crosslinking
What role do crosslinks play in elastomers?
What role do crosslinks play in elastomers?
Act like molecular springs
What is the most familiar example of a natural elastomer?
What is the most familiar example of a natural elastomer?
Natural rubber
Which of these is a synthetic elastomer?
Which of these is a synthetic elastomer?
Neoprene
What enhanced properties can synthetic elastomers provide?
What enhanced properties can synthetic elastomers provide?
Resistance to heat, chemicals, weathering
Why are elastomers used in tyres?
Why are elastomers used in tyres?
Require durability and flexibility
What key properties make elastomers suitable for seals and gaskets?
What key properties make elastomers suitable for seals and gaskets?
Maintain shape under pressure