[Explanation] Since the outbreak of the new coronary pneumonia epidemic, Chinese front-line medical personnel have raced against time to treat patients, often wearing protective clothing overtime, sweating their bodies, and covering their goggles with mist, which affects their sight, and brings certain difficulties in treating patients.
[Explanation] Aiming at the problem of easy fogging of medical goggles, recently, the Guizhou Provincial Materials Industry Technology Research Institute, a unit directly affiliated to the Guizhou Provincial Department of Science and Technology, took advantage of its technology and successfully developed an anti-fog anti-fog coating for goggles in one week. Such anti-fog coatings for medical goggles must not only ensure the transparency and anti-fog function of the lens, but also have certain strength and adhesion stability to ensure that the anti-fog coating is not damaged during the assembly and disinfection of the lens. damage.
[Live sound] Scientific staff introduce the principle picture
After coating, we can clearly compare that (left) is treated with coating, no droplets appear, and (right) is not coated, and the droplets become a small water. Beads, such as small water drops are particularly many, it will form a fog effect.
[Concurrent] Li Juan, associate researcher of Guizhou Institute of Materials Industry Technology
Because of this mist, the main reason is that water vapor encounters cold lenses, which is a process of atomization, and then we need to develop some coating materials at this angle, and let us exhale the gas. When the lens is formed, a mist is not formed, and then a transparent water film is formed, which does not affect the transmission of light. Therefore, a transparency is formed. In this regard, we need to make the coating hydrophilic and make it functional. A development, so combining our advantages, made such a super hydrophilic coating to play a good anti-fog effect.
[Explanation] In order to enable reporters to feel the effect of the antibacterial and anti-fog coating more intuitively, Li Juan, associate researcher of Guizhou Provincial Institute of Materials Industry Technology, started the test on the spot.
[Live Voice] Li Juan, Associate Researcher, Guizhou Institute of Materials Industry Technology
(In order to allow the coating) to be effectively applied to the lens, so we made it into the form of a wet wipe. During the use, we can take a piece of wet wipe and soak it on the surface of our lens, and it will work. It has a good anti-fog effect. It can be used by hand. This is 75% of medical alcohol. If there is no problem, it can be made into a wet wipe (apply evenly). Let's simulate an effect of the anti-fogging agent. The anti-fogging agent is not applied on the left and the anti-fogging agent is applied on the right. Then, using a water bath to simulate the steam process, it is obvious to see an anti-fog difference.
[Explanation] It is reported that the antibacterial anti-fog wipes have been sent to some goggles manufacturers in Guizhou Province for trial. Due to its simple coating process, the test of the anti-fog effect of the coating can be maintained for 10 days, and the transparency and coating of the lens The strength and adhesion stability can meet the requirements of lens assembly and disinfection process, and all received good feedback. At present, antibacterial and anti-fog wipes have been produced in batches and are intended to be sent to the front line for anti-epidemic use.
[Concurrent] Li Juan, associate researcher of Guizhou Institute of Materials Industry Technology
Facing this special period of the epidemic, as a scientific researcher, we must not only fulfill our own duties (obligations) in scientific research, but also contribute more to the prevention and control of the epidemic.
(Reporter Yuan Chao Zhang Wei Guiyang reports)
Editor-in-chief: [Tao Guangxiong]