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Research Boosts Anticorrosive Protection

Friday, August 5, 2016

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Researchers in Iran are undertaking work to improve the anticorrosive properties of polymeric coatings.

A team at the Institute for Color Science and Technology (ICST) is using graphene to create nanocomposite structures in its efforts to achieve these advancements, the Iran Nanotechnology Initiative Council (INIC) reported Tuesday (Aug. 2).

Graphene structure
© iStock.com / INchendio

Iranian researchers are striving to improve the anticorrosive properties of coatings by using graphene and creating nanocomposite structures.

Affiliated with Iran’s Ministry of Science, Research and Technology, ICST was founded in 1997 to develop knowledge and technologies in all areas related to color, colorants, paint and coatings.

Increased Protective Properties

Globally, countries spend a large amount of money on corrosion prevention and repairing the damages due to corrosion on an annual basis, the INIC explains, and anticorrosive coatings are widely selected to reduce those costs.

“Organic coatings are widely used to protect metals against corrosion,” it adds. “Epoxy coatings have desirable protective properties in corrosive media due to its unique characteristics. However, the coating is not able to conserve its protective ability for a long time in contact with corrosive media.”

To tackle this issue, ICST researchers are using graphene oxide nanoparticles to create nanocomposite structures meant to increase the protective properties of epoxy-based anticorrosive coatings.

While the unique properties of graphene oxide-based nanoparticles have been getting a lot of research attention, the council notes that these materials are not compatible or stable in most organic solvents.

Therefore, surface modification using amine compounds is necessary for these materials. The nanosheets help to to prevent the diffusion of corrosive agents into the coating or at least postpone the diffusion. Therefore, the life of the coating increases significantly, INIC says.

The use of synthetic nanocomposite coatings for onshore structures, equipment and petrochemical units reduces corrosion-related expenses and increases the life of equipment, including pipelines, INIC says.

Results of the ICST team’s research have been published in Corrosion Science.

Iran Nanotechnology Initiative Council (INIC) was established in 2003 and is tasked with determining the general policies for the development of nanotechnology in the country and pursuing implementation of the policies.

   

Tagged categories: Asia Pacific; Coating chemistry; Coating Materials; Corrosion control coatings; Corrosion protection; Corrosion resistance; EMEA (Europe, Middle East and Africa); Graphene; Latin America; North America; Protective Coatings; Research and development

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