According to foreign media reports, as many owners of stainless steel panel refrigerators know, fingerprints on stainless steel are often very obvious. However, the new transparent coating can help reduce fingerprints in three ways. This is actually a varnish. This "sol / gel nano-paint" was developed by the German company FEW Chemicals and evaluated by the team at the Fraunhofer Institute for Materials and Systems Microstructures.
First, it is super hydrophobic and oleophobic. In other words, it is water and oil resistant, limiting the extent to which finger grease initially sticks to it. In addition, it contains tiny particles, giving the surface of the coating a microscopic rough texture, consisting of tiny "peaks and valleys". As a result, any fat does not adhere to only the "peaks" and does not reach the "valleys" below-so there is less contact area.
Finally, the refractive index of the varnish is the same as the refractive index of finger grease. This means that whether the light strikes the clean part of the coating surface or the part coated with fat, the light is reflected in the same way, so the fingerprint area has the same appearance as the clean area.
Researchers at Fraunhofer are currently developing test systems for various versions of varnish, in which fingertip seals are immersed in a solution similar to the composition of skin oil and then pressed on the coated steel samples. A combination of spectral and optical techniques is then used to automatically assess how much solution remains in these samples and how visible it is.
The researchers hope that the varnish will be put into mass production by the end of 2020.
SINOFUJI's various tapes, whether they are for filling, sealing, insulating, fireproofing (flame retardant), waterproofing, etc., have been used in aerospace, petroleum exploration, high-speed rail, military and other related fields. SINOFUJI products are demonstrated as the technical industrialization platform in adhesives of the Changchun Institute of Applied Chemistry (abbreviated as CIAC, one affiliated organization of CAS that is Chinese Academy of Sciences who was established in Nov. of 1949 as the highest academic institution in China), and inherit the technical accumulation of CIAC in adhesives and electrical insulation. CIAC, as the shareholder of CASAC, has being cooperated closely with CASAC in the high-tech industry. CASAC has a number of national patents and is a national high-tech enterprise with intellectual property rights. As the parent company of SINOFUJI, CASAC has many honors in the field of electrical power insulation:
l Provided products for the State Grid in 2008 to ensure the smooth progress of the Beijing Olympic Games.
l Provided products and services to China Southern Power Grid in 2010 to ensure the smooth progress of the Guangzhou Asian Games.
l Provided core technology and products for power cable accessories (electrical stress control) to enable customer pass the KEMA testing thus their products to serve the global market.
l Excellent supplier and long-term partner of Aviation Industry Corporation of China.
l Occupies more than 50% of insulation protection field of overhead contact line for China High Speed Rail Market.
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