Scientists at American universities have created the world’s ‘whitest colour’, its whitening properties that can fight global warming. Combat paint has been developed by Ziulin Ruan, a professor of mechanical engineering at Purdue University, and his team. The paint has earned the book of Guinness World Records for being so white.
This white color reflects 98.1% of solar light and also emits infrared heat, which can cool the air around buildings. It absorbs less heat than the heat from the Sun. This can reduce the use of air conditioners. Commercial white typically reflects only 80 to 90 percent of sunlight.
Purdue University said in a statement, “Typical commercial white paint tends to be hotter rather than cooler. Paints on the market that are designed to reject heat only reflect 80-90 percent of sunlight and surfaces. can’t make it cooler than its surroundings.”
The use of paint could generate up to 10 kilowatts of cooling power to cover a roof area of about 1,000 square feet, said researchers at Purdue researchers. According to Ruan, it is more powerful than the air conditioners used in most homes.
“When we started this project about seven years ago, we had the idea of saving energy and fighting climate change,” Ruan said in a podcast episode of “This Is Purdue.”
— Purdue University (@LifeAtPurdu) September 17, 2021