flower

Polyurethane flower blooms in the sunshine

Singapore – A 3D printed-polyurethane flower that blooms when exposed to sunlight has been created by scientists at Nanyang Technological University in Singapore.

The polyurethane was made photoresponsive by mixing it with carbon black, which heats up when exposed to sunlight.

The heat generated on illumination activates the polyurethane’s shape recovery. This was demonstrated by 3D printing a sunflower that mimics the heliotropic behaviour of the flower, using a fused deposition modelling…

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