Epoxy coating modification with metal nanoparticles to improve the anticorrosion, migration, and antibacterial properties

Scientific paper - Original scientific paper

• Author: Marina Samardžija
• Author: Ivan Stojanović
• Author: Marija Vuković Domanovac
• Author: Vesna Alar
• Author's institution: University of Zagreb; Faculty of Chemical Engineering and Technology
• Author's institution: University of Zagreb; Faculty of Mechanical Engineering and Naval Architecture
• Author's institution: University of Zagreb; Faculty of Mining, Geology and Petroleum Engineering; (Department of Chemistry)
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Chemical Engineering
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Mechanical Engineering
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Basic Technical Sciences

Abstract (english)

Nanoparticles are capable of making more durable and stronger materials with better chemical resistance. They are used for a wide range of applications. Likewise, the potential of metal nanoparticles as antimicrobial agents has been widely studied. In this work, we investigate various nanoparticles (Al, Ni, Ag) incorporated into epoxy coating. The anticorrosion and antibacterial properties of the unmodified and modified coatings were evaluated. According to the SEM and EDS analyses, the coating did not contain agglomerates, which confirms the quality of the dispersion of inorganic nanoparticles in the coating. After 24 h and 10days immersions in a 3.5 wt.% NaCl solution, the corrosion behaviour for all nanocomposite was studied by means of EIS investigations. The study included the evaluation of the inhibition zone of the nanoparticles and the antimicrobial properties of the nanocomposite. It was found that the nanoparticles of Al and Ag provide excellent antibacterial properties. The epoxy nanocomposite with Al NP showed the migration of ions in the range from 0.75 to 1 mg/L in a wastewater solution for 30 days, indicating a potential for antimicrobe activity. The 1% Al NP epoxy nanocomposite showed good anticorrosion and antibacterial properties and demonstrated great potential for applications in pipelines.

• Keywords (english): corrosion protection; nanoparticles; epoxy coating; antibacterial activity
• Language: english
• Publication type: Scientific paper - Original scientific paper
• Publication status: Published
• Peer review: Peer review - international
• Publication version: Published version
• Journal title: Coatings
• Numbering: vol. 13, no. 7, 1201
• e-ISSN: 2079-6412
• DOI: https://doi.org/10.3390/coatings13071201
• URN:NBN: urn:nbn:hr:169:364988
• Publication: 2023-07-04
• Project: Number: KK.01.1.1.07.0045; Title (croatian): Razvoj sustava antikorozivne zaštite za višenamjensku uporabu cijevi; Title (english): Development of anti-corrosion protection system for multipurpose pipe use; Acronym: RSAZ; Leader: Vesna Alar; Jurisdiction: Croatia
• Document URL: https://www.mdpi.com/2079-6412/13/7/1201
• Type of resource: Text
• Access conditions: Open access
• Created on: 2024-11-06 10:49:56