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Sunday, 15 September 2019
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Raw materials & technologies, Applications, Protective & Marine coatings

Self-healing nanogel composite embedded with epoxy as eco-friendly coating

Wednesday, 20 September 2017

Smart nanogel capsules are attracting great attention to act as self-healing materials for polymers. A research work aimed at incorporating nanogel among silicate layers of sodium montmorillonite to increase its dispersibility into an epoxy matrix so as to be used as self-healing nanocomposites.

Self-healing nanogel composite embedded with epoxy as eco-friendly coating. Source: Pixabay

Self-healing nanogel composite embedded with epoxy as eco-friendly coating. Source: Pixabay

For this purpose, N-isopropyl acrylamide (NIPAm) as a salt-sensitive monomer was selected to prepare smart nanogels to disperse the sodium montmorillonite (Na-MMT) layers.

Protecting steel from corrosive environments

The chemical structure, surface morphology, particle size distribution, surface charge, and degree of exfoliation of Na-MMT with NIPAm nanogel were investigated. The ability of Na-MMT/NIPAm to modify the mechanical, surface, and self-healing characteristics of epoxy matrix was studied. The corrosion inhibition and self-healing mechanism were discussed in light of salt spray resistance of epoxy nanocomposites to protect steel from corrosive environments.

The study is published in: Journal of Coatings Technology and Research, September 2017, Volume 14, Issue 5.

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