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A new biodegradable film developed by scientists in China and Australia could slash building energy use by up to 20 per cent and keep surfaces up to 9.2C cooler without using any electricity, according to a new study.
The material is made from polylactic acid – a bioplastic derived from plants – and passively reflects nearly all solar radiation while allowing heat from inside buildings to escape into the sky.
Researchers from Zhengzhou University and the University of South
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