Energy-saving Cooling Coated Fabric with Robust Solar Reflection and Water Repellent Properties

With the global climate changing, people are more aware of energy consumption and are interested in energy-saving products or materials. One way to reduce energy consumption to improve personal thermal management efficiency is urgently needed. Therefore, we provide an alternative energy-saving method that will improve fabrics’ thermal management by blocking infrared heat and ultraviolet light from solar radiation. A phase-inversion technique was developed to prepare poly(vinylidene fluoride-hexafluoropropylene) (PVDF-HFP) micro-size and nano-size composite pore structure which can block out the sun and be coated on fabric material. Meanwhile, by adding hydrophobic SiO2 aerogel particles (SA) to the system, the surface of coating became superhydrophobic, it improved waterproof and moisture-permeable properties of fabric which are important for wearing or using pleasantly. It can be used for any outdoor application such as tents, clothing, or some indoor use as well.