Smart materials

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Chemistry

GCSE Chemistry

WJEC

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6 Terms

1
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What is a smart material?

A material whose properties change in environment but it is easily changed back to original form

2
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Shape memory polymers

Polymers which return to original shape when heated

3
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Hydrogels/Polymer gels

Absorbent polymer chains which can absorb or expel water up to 1000 times it’s volume - used in nappies

4
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Thermochromic materials

Changes colour when temperature changes

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Photochromic materials

Change colour when light intensity changes

6
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Shape memory alloys

When bent out of shape it will return to original shape when heated