The whitest paint in the world has just been listed in the Guinness Book of Records. It could cool homes by delivering more cooling power than an air conditioner.
New record for a team of researchers from Purdue University who are working on a paint whiter than white. Last October, they announced a painting capable of reflecting 95.5% of the goes even further, and reflects 98.1% of the while emitting .. The
This painting is the whitest in the world, and has just been registered in the Guinness Book of Records. She is so white that sheany painted object. Applied to buildings, it would reduce the need for . According to Xiulin Ruan, professor of mechanical engineering and one of the authors of the article, this painting is ” more powerful than air conditioners used by most homes ».
A painting already on the market
Applied to aof 93 square meters, this paint would produce a cooling capacity of 10 kilowatts, and could represent an alternative to . The secret of the formula is sulphate , used in the and cosmetic products. The reflected depends on the size of the particle. By including barium sulfate particles of different sizes, the paint reflects a larger luminous.
This painting is the result of seven years of research, and was created with the intention of combating the. It should be available fairly quickly to the general public, since researchers have already found a partner for its commercialization.
Scientists create the whitest paint in the world
After the Vantablack, discover … the Vantablanc? Researchers at Purdue University recently developed the whitest paint ever, capable of refreshing coated surfaces.
Article of, published on 10/26/2020
A white paint recently developed by researchers promises to lower our air conditioning bills. Here is his secret. © Purdue University
Reflect the Sun’s rays
This paint would not simply have a positive impact on the environment by reducing our energy needs.and are responsible for a huge amount of . By reflecting the Sun’s heat rays back into space, this new invention avoids contributing even more to the and makes it possible to design more eco-responsible infrastructures in the future. ” We do not move heat from the surface of the planet to the . We just throw it back into space, which is a bottomless heat sink Commented Xiangyu Li, postdoctoral researcher at MIT and member of Ruan’s team.
An already marketable solution
Unlike the “anti-heat” paints currently marketed, which reflect only 80 to 90% of the radiation and cannot produce surfaces colder than their environment, the one developed by Ruan and his colleagues reflects 95.5% of the rays. ,. It is also cheaper. Result of six years of research, based on trials started in the 1970s, this new product is composed of , a substance abundant on Earth, found in the rocks and shells of . Due to its atomic structure, this ingredient hardly absorbs and allows a large number of wavelengths to be dispersed.
The idea is great and could be found in our stores very soon. Researchers have already submitted an international patent application that could allow its rapid commercialization. It remains to know the potential impact of this paint on the environment in general. In 2014, pilots complained of on the border between Nevada and California. Will it be the same if we consider painting the roofs of large cities white? What will be the impacts for and flora, and in particular for birds? These questions will have to gradually find answers, but it is difficult to deny that this new advance looks promising!