Air conditioning and other space cooling methods account for about 10% of all electricity consumption in the U.S., according to the U.S. Energy Information Administration. Now, researchers reporting in ACS Applied Materials & Interfaces have developed a material that cools the wearer without using any electricity. The fabric transfers heat, allows moisture to evaporate from the skin and repels water. Watch a video about the new fabric here.
Youtube ID: dJGG-FAUSmA
Cooling off a person’s body is much more efficient than cooling an entire room or building. Various clothing and textiles have been designed to do just that, but most have disadvantages, such as poor cooling capacity; large electricity consumption; complex, time-consuming manufacturing; and/or high cost. Yang Si, Bin Ding and colleagues wanted to develop a personal cooling fabric that could efficiently transfer heat away from the body, while also being breathable, water repellent and easy to make.
The researchers made the new material by electrospinning a polymer (polyurethane), a water-repelling version of the polymer (fluorinated polyurethane) and a thermally conductive filler (boron nitride nanosheets) into nanofibrous membranes. These membranes repelled water from the outside, but they had large enough pores to allow sweat to evaporate from the skin and air to circulate. The boron nitride nanosheets coated the polymer nanofibers, forming a network that conducted heat from an inside source to the outside air. In tests, the thermal conductivity was higher than that of many other conventional or high-tech fabrics. The membrane could be useful not only for personal cooling, but also for solar energy collection, seawater desalination and thermal management of electronic devices, the researchers say.
The authors acknowledge funding from the National Natural Science Foundation of China, the Interdisciplinary Studies Program for the Central Universities and the Fundamental Research Funds for the Central Universities.
Contacts and sources:
Publication: “Thermoconductive, Moisture-Permeable, and Superhydrophobic Nanofibrous Membranes with Interpenetrated Boron Nitride Network for Personal Cooling Fabrics” Xi Yu, Yang Li, Xianfeng Wang, Yang Si, Jianyong Yu, Bin Ding.. ACS Applied Materials & Interfaces, 2020; 12 (28): 32078 DOI: 10.1021/acsami.0c04486
Please Help Support BeforeitsNews by trying our Natural Health Products below!
Order by Phone at 888-809-8385 or online at https://mitocopper.com
Order by Phone at 888-809-8385 or online at https://www.herbanomic.com
Get our Free Ebook, "Suppressed Health Secrets" with Natural Cures THEY don't want you to know!
Humic & Fulvic Trace Minerals Complex - Nature's most important supplement! Vivid Dreams again!
Ultimate Clinical Potency Curcumin - Natural pain relief, reduce inflammation and so much more.
pathogens and gives you more
energy. (See Blood Video)
Oxy Powder - Natural Colon Cleanser! Cleans out toxic buildup with oxygen!
Organic Hemp Extract (CBD) - Full Spectrum high CBD (3300mg) hemp extract eases stiff joints, relieves stress and more!
Nascent Iodine - Promotes detoxification, mental focus and thyroid health.
Smart Meter Cover - Reduces Smart Meter radiation by 96%! (See Video)
Immusist Beverage Concentrate - Proprietary blend, formulated to reduce inflammation while hydrating and oxygenating the cells.