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Smart Materials

1. Smart colours

   • Pigments which can be incorporated into paints, dyes, inks and plastics
   • Thermochromic pigments
     • React to changes in temperature
   • Photochromic pigments
     • React to changes in light levels
     • Used in sunglasses
       • Exposure to sunlight causes the lens of the glasses to darken to protect the eye

2. Polymorph

   • Available in small pellets which fuse together when heated to 62˚C
   • Moulded into shape resulting in a very tough polymer
   • Unused pellets can be re-heated and re-used