The lotus leaf, which is not stained with mud, is a natural "water fountain" that protects against rain but cannot prevent water vapor. Researchers at the Pennsylvania State University have recently developed a new type of nanomaterial that does not adhere to water vapour. It truly does not dribble. According to the researchers, when droplets fall on the surface of an object, there are usually two cases: First, the surface of the object is still “locked†with a thin layer of gas, and the droplets float on this layer of gas, but not on the surface. The surface of the object; one is that there is no gas between the two, and the droplet is in close contact with the surface of the object and is confined or stuck on it. In the past, people developed the imitation of lotus leaf waterproof material can only work in the first case, and now they allow the material to work effectively in the second case. "The hydrophobicity of the lotus leaf surface is completely dependent on a layer of gas underneath the liquid, but this layer of gas is easily destroyed, which makes it lose its hydrophobic properties," Huang Desheng, assistant professor in charge of the study, explained, "Our research uses liquids. Lubricants replace the gas, greatly improving the surface water-free performance." In order to obtain this non-stick surface, the researchers used nanotechnology to process the nanostructured "pillars" on the silicon wafer. Then a layer of liquid lubricant was poured into the nanostructures to reduce the viscosity of the droplets. . To test its performance, the researchers tilted the surface 30 degrees and placed 5 microliters of water droplets on the surface to allow it to slide. The test results confirm that even if there is no gas under the droplets, the surface can still be “drip-free,†and its hydrophobic properties far exceed those of previous bionic structures. The first author of the relevant paper Dai Xianming pointed out that in addition to silicon materials, metals, glass, ceramics and plastics can also be used to design such water-repellent materials. In industry, this kind of material has important application value, for example, it can be used to improve the condensation heat transfer performance of heat exchangers in power plants, and it can also prevent safety accidents caused by wing icing and frost formation. This study was recently published online in the American Journal of ACS Nanos. Turbine Flowmeter,Turbine Flow Meter,Turbine Type Flow Meter,Liquid Turbine Flow Meter Wuxi Winsun Automation Instrument Co., Ltd , https://www.winsunwx.com