smart materials(chem) 0.0 / 5 ? ChemistryNanoscienceGCSEWJEC Created by: beckkCreated on: 30-03-15 10:39 what is a smart material? a smart material can change its properties with a change in its surroundings 1 of 7 name the 5 smart maerials hydrogel, shape memory alloy, shape memory polymer, thermochromic pigment, photochromic pigment 2 of 7 explain hydrogel. it changes into a liquid when the pH or temperature changes. it is used in nappies and hair gel. 3 of 7 explain shape memory alloy. it shrinks when it is in cold water and expands when it is in hot water. it is used in kettles and hair straighteners. 4 of 7 explain shape memory polymer. can be rigid or elasticated. 5 of 7 explain thermochromic pigment. it changes colour when it comes into contact with heat. it is used in cars and clothes 6 of 7 explain photochromic pigment. it changes colour when the light intensity around it changes. it is used in beads. 7 of 7
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