Iranian Scientists Produce Smart Nanocomposite Coating
These coatings are based on polyaniline, graphene, and gabapentin, and when exposed to corrosive agents like chlorine ions, they send anodic signals to the steel substrate as the environment becomes acidic.
These signals prevent localized corrosion and pitting through anodic protection. By converting corrosion signals into sound, the smart coating allows for the detection of the depth and number of possible pits. This feature is vital for daily corrosion monitoring in sensitive industries.
Using an anodic deposition method similar to electroplating, monolithic layers have been created on 304 stainless steel. This process is scalable and can be produced on an industrial scale.
“Conventional coatings become a corrosion agent by absorbing moisture, but our technology intelligently both prevents corrosion and converts it into audible sound,” said Mobina Moradi, the main researcher of the project.
In a relevant development last August, researchers at a nanotechnology company in Iran had also succeeded in making biodegradable polymeric nanocomposite with different applications, including in packaging industry.
‘Parsa Polymer Sharif’ company has produced the biodegradable polymeric nanocomposite based on the synthetic and natural polymers, e.g. starch as a low-cost sustainable material.
Certain nanomaterials have been included in this matrix to promote its mechanical and chemical properties.
The addition of nanomaterials to the biodegradable polymer compound has led to a 200% reduction in the moisture absorption.
The polymeric nanocomposite can be used in packaging industry, automotive industry and piping.
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