The cooling effect is comparable to that of air conditioners, and scientists have developed a color film.

CTOnews.com March 27 news, summer is coming, we are about to enter the day without air conditioning. Air conditioners can bring us coolness, but they also leak more greenhouse gases. Scientists have recently developed a plant-based film that can effectively reduce temperature and has a variety of materials and colors.

Researchers say the use of the film on buildings and car windows can ensure that the environment inside and inside the car remains cool. Researchers will present their findings at the spring meeting of the American Chemical Society (ACS).

Dr Silvia Vignolini, lead researcher of the project, said: "to make the environment cooler, you need to reflect a lot of sunlight and do not attract the energy that converts light into heat. According to our survey, only a very small number of materials have this property, and adding color will destroy the cooling effect."

Vignolini layers colored CNC materials with white materials made of ethyl cellulose to produce colored double-layer PDRC films. Their films are bright blue, green and red, and when placed in the sun, the average temperature of these films is nearly 40 degrees Fahrenheit lower than the surrounding air. (CTOnews.com) A square meter of film produces more than 120 watts of cooling power, comparable to many types of household air conditioners.

Address of related papers: https://www.acs.org/meetings/acs-meetings/spring-2023.html