A team of researchers from the University of Massachusetts Amherst have developed a polymer-mineral coating for commercial fabrics that has demonstrated a significant cooling effect in warm urban environments. Initial tests of the coating showed that it could keep the air underneath treated fabrics up to 6 degrees Fahrenheit cooler. In a new study published in ACS Applied Materials & Interfaces, the researchers confirm that their treated polyester poplin fabric can keep a person up to 15 F cooler than untreated polyester. These findings suggest that their coated fabrics have the potential to provide energy-free cooling for pedestrians and cyclists in urban areas, where temperatures tend to be higher than in rural landscapes.
The researchers conducted tests in four outdoor urban settings, including areas with materials that absorb and emit the sun’s heat. They found that treated polyester fabric consistently cooled the air underneath it, regardless of the specific environment. In an open grass field, the fabric was able to maintain temperatures an average of 6 F below the ambient air temperature. In a concrete-paved alley between buildings, the cooling effect was 3 F below ambient, while in an asphalt-paved parking lot, it was 1 F below ambient. Finally, in an open concrete veranda, the fabric was able to maintain temperatures 3 F below the surrounding air temperature. These results demonstrate the effectiveness of the coated fabrics in a variety of urban environments.
The researchers originally presented their preliminary findings at a meeting of the American Chemical Society, where they highlighted the potential of their cooling fabric coating. With this new study, they have expanded on their initial tests and confirmed the significant cooling effect of their treated polyester fabric. The authors of the study acknowledge the support they received from an Interdisciplinary Research Grant from the College of Natural Sciences at the University of Massachusetts Amherst. This support has allowed them to further explore the potential applications of their coated fabrics in providing cooling solutions for individuals in urban settings.
As temperatures continue to rise due to climate change, finding ways to stay cool in urban environments becomes increasingly important. The researchers’ coated fabrics offer a promising solution, providing a way to stay up to 15 F cooler than untreated polyester fabric. By maintaining lower temperatures underneath the fabric, individuals can stay more comfortable while outside, whether they are walking in a park, riding a bike, or simply sitting on a patio. The potential energy savings and comfort benefits of these coated fabrics make them an exciting development in the field of materials science and urban design.
In addition to the practical applications of their coated fabrics, the researchers’ work also highlights the potential for innovative solutions to urban heat issues. By developing materials that can effectively cool the air around them, even in hot and sunny environments, the researchers are contributing to a sustainable and comfortable urban living. With further research and development, these coated fabrics could become a common and effective way to provide cooling solutions in cities around the world. The findings of this study offer valuable insights into the future of urban design and the role that innovative materials can play in creating more comfortable and sustainable urban environments.