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Hong Kong University successfully developed waterproof and oil-resistant materials or do not wash clothes as possible
Hong Kong, November 14, Hong Kong University announced on the 14th that its researchers developed a new waterproof and oil-resistant materials, can be applied to clothing, kitchen utensils and military and so on. Technically, this material makes it possible to wash clothes. The research was led by Professor Wang Liqiu, a professor of mechanical engineering at Hong Kong University School of Engineering. Researchers have created a waterproof and oil-repellent material that is "interconnected and lyophilized", so long as it covers the surfaces of textiles, metals and glass, it can achieve the effect of preventing oil and water. Wang Liqiu said that at present most of the relevant products on the market can only be waterproof, less able to prevent oil. In addition, these products generally use chemical methods to achieve water-repellent effects, resulting in high costs and environmental pollution. This new material developed by the University of Hong Kong can be water-repellent and oil-repellent with purely physical methods. Zhu Ping An, a Ph.D. in mechanical engineering at Hong Kong University who participated in the study, said that the ideal high-performance waterproof and oil-repellent materials should meet the requirements of good water and oil repellency, durability, large area preparation and low cost. The incompatibility of waterproofing and toughness is a challenge for the research team. The design of the new material mimics the epidermal structure of the arthropod hopper in order to increase the strength and waterproofing ability of the material and effectively solve the contradiction between the incompatible waterproof capability and the toughness. In addition, researchers in the development of materials to "droplet microfluidic" method to create a "porous liquid-repellent surface", can create a large area of ​​material, and precise control of the surface structure of the material. According to reports, the lower cost of this manufacturing method, only 0.7 Hong Kong dollars per square meter to 1.3 Hong Kong dollars. Related research articles have been published in Nature Newsletter. At present, HKU has applied for a patent on this research and development and it is estimated that it will be applied to daily necessities in the next two to three years.