Corrosion has always been one of the major problems restricting the development of economic construction in various countries. The direct economic loss caused by corrosion is about 2.5 trillion US dollars per year globally. The application of anti-corrosion coatings is one of the main ways to solve the corrosion problem. With the continuous development of graphene technology, graphene anti-corrosion coatings, as a new type of high-performance material coatings, are gradually being applied in many fields.

Application areas of graphene anti-corrosion coatings:

I. Marine vessels
The marine environment is harsh, and the seawater contains a large number of chloride ions, pollutants, and microorganisms, which will cause corrosion and biological damage to the surface of the ship, resulting in shorter ship life and increased maintenance costs. The use of graphene anti-corrosion coating can form a hard, anti-corrosion, anti-bio-adhesion, not easy to fall off the protective layer to ensure that the surface of the hull of the ship is kept intact for a long time, the performance is stable, and the service life of the ship is extended.

Second, the construction project

Buildings face many destructive factors in the process of use, such as ultraviolet rays, wind and rain and other natural factors. There are also various problems such as impact, corrosion and aging. The use of graphene anti-corrosion coating can protect the surface of the building, enhance the strength, hardness and density of the material, reduce the temperature of the building, and effectively improve the service life and overall performance of the building.
Third, automobile manufacturing

Cars need to face a lot of damage from the natural environment and road environment in the process of use, such as acid rain, sand, dust, ultraviolet rays, high temperature and so on. At the same time, the production process needs to spray a variety of paints, chemicals, solvents, etc., and these materials may cause corrosion and pollution on the surface of the body. The use of graphene anti-corrosion coating can form a heavy combination of surfaces, which can effectively block oxygen, moisture, acid and alkali, etc. harm to the bodywork. When it can also play the role of heat insulation and shock absorption, which improves the overall performance of the body. Graphene modified anticorrosion coatings, as an application field of graphene materials, has rapidly become a research hotspot for anticorrosion coatings at home and abroad in recent years.

Graphene anti-corrosion coatings developed by VIGON Technology have been tested and coated in the field of marine anti-corrosion and industrial anti-corrosion. Traditional coatings through the use of graphene materials modified, its anti-corrosion performance will not only greatly improve, but also be able to give the coating many new functions.

VIGON technology developed a two-component graphene epoxy anticorrosion coating to replace the traditional epoxy zinc-rich primer + epoxy ferrocement intermediate paint with the use of the coating, easy to construct, can effectively improve the coating of zinc powder utilisation. Adopting alicyclic main chain epoxy resin, scale zinc powder, iron titanium powder and additives, after grinding and dispersing. It effectively solves the problem of poor compatibility of graphene which is not easy to be dispersed, and with polyamide curing agent, it has the characteristics of excellent film formation, good adhesion on metal substrate, excellent anti-corrosion effect, etc. It is suitable for steel structure and pipeline under high corrosive environment.

Graphene has a wide range of applications in the anticorrosive coating industry due to its excellent physical barrier properties, high electrical and thermal conductivity, outstanding mechanical properties and chemical stability. The performance are widely improved, which will certainly promote a new round of revolution in the anti-corrosion coating industry. However, there are still facing some key technical issues, such as: how to prepare high quality graphene products in large scale and low cost; innovation of graphene functional modification methods; research on the role of graphene in polymers in the polymer, for its application in the field of anticorrosive coatings to provide theoretical support accompanied by the development of graphene anticorrosive coatings applications. We firmly believe that in the future in the development of graphene functional anticorrosive coatings these problems will be gradually resolved, in the process of upgrading and development of functional anticorrosive coatings industry, graphene will play an important role.