Incorporation of Al₂O₃, GO, and Al₂O₃@GO nanoparticles into water-borne epoxy coatings: abrasion and corrosion resistance.

ABSTRACT: Nano-Al₂O₃ particles and graphene oxide (GO) nanosheets were modified by 3-aminopropyltriethoxysilane (KH550), and then dispersed in epoxy resin, and finally modified-Al₂O₃/epoxy, modified-GO/epoxy and modified-Al₂O₃@GO/epoxy composite coatings were prepared on steel sheets by the scraping stick method. The microstructure, phase identification, surface bonding and composition of the nanoparticles were characterized by SEM, XRD, FT-IR, and Raman spectroscopy, respectively. The hardness of the coating was assessed by the pencil hardness method. The abrasion resistance of the coating was tested by a sand washing machine. The corrosion resistance of the coating was assessed using salt spray, a long-period immersion test, potenti

SUBMITTER: Huang JQ 

PROVIDER: S-EPMC9429057 | biostudies-literature | 2022 Aug

REPOSITORIES: biostudies-literature