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Graphene-Corrine

Graphene! corrosion-resistant property of a human hair thick coating can up to 3000 hours.

The thickness of 100 thousand layer graphene equals to the diameter of one human hair. Well, how it would work if applied on coating?
On the “Nano Graphene modified anticorrosion coating technical report” held in Jiangsu a few days ago, a company brought out a thinnest graphene heavy-duty coating, whose corrosion-resistant property could be up to 3000 hours, which was three times than that of American heavy-duty coating.
It’s all known that to provent metal corrosion is an international problem.The common method of anti-corrosion is to paint the metal to prevent it from contacting with air and water. Such method can only make metal not be corrision in a short time and it requires regular maintenance and has certain limitations.

Graphene is the lightest, thinnest, highest strength, best electrical conductivity and thermal conductivity of nano-scale new materials and can enhance the performance of raw materials in many applications.
Graphene heavy anti-corrosion coating making use of good conductivity and sheet lap characteristics of Graphene, adds the modified graphene into the anti-corrosion coating system, forming a good conductive network with Zinc powder and to achieve a breakthrough that still have excellent cathodic protection and corrosion resistance under the condition of the low Zinc.

According to expert said that the combination of graphene and coating made amount of Zinc nano powder only 1/3 of the traditional corrosion-resistant coating and it dramatically reduced the pollution of Zinc vapor. At the same time, graphene heavy-duty coating is the known thinnest corrosion-resistant coating, which can meet the demand of lightweight coating.

When you buy  Nano Graphene Oxide and other carbon nanomaterials from Hongwu nanomaterial, you can be certain you’re getting the finest product at the best possible price.

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Graphene helps prevent steel from rusting

An Indian-American researcher and his partner invented a new technology that uses graphene to prevent steel from rusting.

Iron and steel rust is a big problem in the automotive industry. Although there is paint coverage, it is easy to scratch, and the bumper is coated with chromium. This process involves the addition of toxic chemicals.

In order to solve this problem, SUBA Buffalo professor of chemistry Sarbajit Banerjee and doctoral student Robert Dennis developed a polymer composite containing graphene.

Graphene is a layer of carbon atoms, it has hydrophobicity and strong conductivity. These properties make the steel contact with water and also reduce the electrochemical reaction of iron oxides that rust iron.

The two researchers added this composite coating to a varnish, applied it to steel, and then immersed it in salt water. In a typical winter climate, the mixture of salt water and salt and snow is different and a car will encounter a car, so it is very effective as a very harsh environmental avatar.

Initially, varnished steel sheets could only last in salt water for several days. However, Banerjee and Dennis can keep varnish in this environment for a month by adjusting the concentration and dispersion of added graphene.

Banerjee said that he wanted to add something to the coating that detects the pH of the water in the vicinity of the scratches and reacts with the water in a manner that seals the crack.

Although this technology still has a long way to go for commercialization, some large companies in the steel industry are also interested in participating in this research, especially Tata Steel, which has provided funding for Banerjee’s experiments. The two scientists also received $50,000 in funding from the New York State Institute of Pollution Prevention.

In a news release, Banerjee stated that the paint can be produced using the existing equipment of the local steel plant.

Unlike hexavalent chromium, used to coat bumpers and some engines, graphene is non-toxic because it is only a carbon atom and does not require the use of strong acids. It is safe throughout the process. These reasons make graphene a magic material for future electronic components.

Related reading:Carbon Material Nanopowders  Carbon Nanomaterials