Fabric keeps you cool or warms you up depending on the weather

For the first time, American scientists created the first fabric that keeps you cool or warms you up, depending on environmental conditions.

Although, in recent decades, there have been several innovations in fabrics in order to obtain improved thermal properties, e.g. allowing a marathon runner to cool down or keeping a climber warm, there has never been a fabric that changes on its own, responding to the changing weather conditions.

Researchers at the University of Maryland, headed by Professor Yuhuang Wang of the Department of Chemistry and Biochemistry, who published in Science magazine, created the first fabric that automatically regulates how much heat it passes through.

When the weather is hot and humid, so the body sweats, the fabric allows infrared radiation (heat) of the body to penetrate it and escape into the environment, so the body cools. On the contrary, when the weather is cold and dry, the fabric reduces the heat that escapes the environment, so the body heats up transmits the RES-ICU.

The base of the fabric is a yarn of two different synthetic materials, one of which absorbs water and the other repels it. The yarn is coated with carbon nanotubes, a metal that is a good conductor of heat.

Scientists have said that the new fabric needs more work before it is commercially exploited, but all of its materials are already available on the market, and even its production will not face technical difficulties.