A team of researchers at China’s Jinchua University has developed a new sunscreen that corrects a key shortcoming of existing commercial designs. And also – they only remove UV rays and do not prevent thermal radiation from the sun from entering the casing. Because it is slow, it carries the risk of overheating and the presence of water.
About other UV radiation, the creams present contain small particles of titanium dioxide or zinc oxide. However, in addition to ultraviolet and infrared (thermal) transmission at opposite ends, due to the difference in the wavelength of the radiation, the sizes of these particles do not return to the post. Under the command of Xinchua, he experienced experience in terms of characters, characters to overcome two effects.
The task turned out to be more difficult than they thought – the particles themselves cannot cope with it. It was necessary to develop a special composition, which included deionized water, the use of Nivea cream, ethanol, polydimethylsiloxane – a polymer for cosmetics, as well as a flesh-colored pigment based on iron oxides. The result is a skin-friendly waterproof cream that will retain its properties when irradiated under a xenon lamp for more than 12 hours. The most effective SPF is 50.
The main thing about the new engine is that it cools the casing by an average of 6.0 ºC to the side. with existing commercial sunscreens. By definition, the production technology is also creamy. For 10 grams you need to pay $0.92, that’s what it is. competitive goods.
Source: Tech Cult
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