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 New Invention Profile

Publication No: IN202311034439 [India] Application No: IN202311034439
Title: A bio-based epoxy formulation for coating on metallic surfaces
Publication Date: 20-12-2024 File Date: 21-04-2023
Inventor(s): RAJIMOL PUTHENPURACKAL RAVI; RAJAN THAZHAVILAI PONNU DEVARAJ; VASU RADHAKRISHNAN KOKKUVAYIL; ANOOP PUTHIYAMADAM; RAJEEV KUMAR SUKUMARAN
IPC Classification: A61K 36/19, A61K 36/28, C09D 7/61, G01N 17/02, C09D 5/14
Abstract:
A bio-based epoxy formulation for coating on metallic surfaces The present invention provides the synergistic formulation of a bio-nanocomposites in epoxy medium  with synergistic effect and broad-spectrum activity in antimicrobial action and synergistic anti-corrosion potential when applied on various metallic and alloy surfaces.  The plant extracts used in the formulations are hydro-ethanolic extract of Azadiracta India, Elaphantopus scaber and Andrographis paniculata three plants belonging to  three different families namely Meliaceae, Acanthaceae and Asteraceae. This smart coating is capable of preventing proliferation and propagation of various pathogens  and thus helps in preventing contagious diseases. So, in the present scenario the invention provides an alternative, safe and efficient self-sanitizing composite coating to  address the issue of spread of many contagious diseases. The use of many hazardous inorganic corrosion inhibitors is now being banned. In this contrast, this  formulation is an effective solution with no side effects, cost-effective, eco-friendly and renewable sources. The present invention also discloses the detailed qualitative  and quantitative screening of the coating with gram positive and negative bacterial strains. And the corrosion inhibition potential is analyzed with electrochemical  impedance spectroscopy and potentiodynamic polarization studies.
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CSIR-National Institute for Interdisciplinary Science and Technology[CSIR-NIIST]
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Industrial Applications Chemistry, Chemical Processes Polymers [Chemistry, Chemical Processes] Coatings [Metallurgy] Composites [Materials] Materials Processes [Materials] Nanomaterials [Materials]