When exposed to the sky, the porous polymer PDRC coating reflects sunlight and emits heat to attain significantly cooler temperatures than typical building materials or even the ambient air.
Credit: Jyotirmoy Mandal/Columbia Engineering
Engineers have invented a high-performance exterior PDRC polymer coating with nano-to-microscale air voids that acts as a spontaneous air cooler and can be fabricated, dyed, and applied like paint on rooftops, buildings, water tanks, vehicles, even spacecraft – anything that can be painted. They used a solution-based phase-inversion technique that gives the polymer a porous foam-like structure.
With temperatures rising and heat-waves disrupting lives around the world, cooling solutions are becoming ever more essential...
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