Colour-change materials, which are smart materials that change their colour due to an external action, might inspire new designs and aesthetical effects. Others, like shape memory materials, allow the development of self-healing materials which have the ability to “repair themselves”, this means, to repair damage caused by scratching, abrasion or use over time
Smart materials can change their properties or aesthetics with an external condition which is considered to be dangerous for the product. This changing effect may warn the customer or the operator about a hazardous situation or environment so possible damage can be prevented.
An example that shows this aspect perfectly is smart fabrics. Smart fabrics will allow the incorporation of electronic devices in our clothes, like heart rate monitors for athletes or thermometers in baby clothes. Simple color, shape or conductivity changes, can show the user whether they are making or not a good use of a product.
In order to guarantee the quality of a product and its optimal condition, different indicators can be used: thermochromics, hydrochromics, electrochromics… These materials reveal whether a product has suffered damage or a quality reduction. Also for machinery or equipment can indicate that these installations are working properly.
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