Synthesis of cuprous oxide epoxy nanocomposite as an environmentally antimicrobial coating.
Cuprous oxide is commonly used as a pigment; paint manufacturers begin to employ cuprous oxide as booster biocides in their formulations, to replace the banned organotins as the principal antifouling compounds. Epoxy coating was reinforced with cuprous oxide nanoparticles (Cu2O NPs). The antibacterial as well as antifungal activity of Cu2O epoxy nanocomposite (Cu2O EN) coating films was investigated. Cu2O NPs were also experimented for antibiofilm and time-kill assay. The thermal stability and the mechanical properties of Cu2O EN coating films were also investigated. The antimicrobial activity results showed slowdown, the growth of organisms on the Cu2O EN coating surface. TGA results showed that incorporating Cu2O NPs into epoxy coating considerably enhanced the thermal stability and increased the char residue. The addition of Cu2O NPs at lower concentration into epoxy coating also led to an improvement in the mechanical resistance such as scratch and abrasion. Cu2O NPs purity was confirmed by XRD. The TEM photograph demonstrated that the synthesized Cu2O NPs were of cubic shape and the average diameter of the crystals was around 25nm. The resulting perfect dispersion of Cu2O NPs in epoxy coating revealed by SEM ensured white particles embedded in the epoxy matrix.
Petroleum applications Department, Egyptian Petroleum Research Institute (EPRI), Cairo, Egypt.
Ashraf
A
M El Saeed
Production Department, Egyptian Petroleum Research Institute (EPRI), Cairo, Egypt. Electronic address: eprimaf68@yahoo.com.
M
M
Abd El-Fattah
Environmental Researches Department, Theodor Bilharz Research Institute (TBRI), Giza, Egypt.
Ahmed M
AM
Azzam
Production Department, Egyptian Petroleum Research Institute (EPRI), Cairo, Egypt.
M M
MM
Dardir
Petrochemical Department, Egyptian Petroleum Research Institute (EPRI), Cairo, Egypt.
Magd M
MM
Bader
D000900:Anti-Bacterial Agents / Q000138:chemical synthesis* / Q000494:pharmacology; D001407:Bacillus / Q000187:drug effects / Q000254:growth & development; D018441:Biofilms / Q000187:drug effects / Q000254:growth & development; D003300:Copper / Q000737:chemistry* / Q000494:pharmacology; D004853:Epoxy Resins / Q000737:chemistry* / Q000494:pharmacology; D004926:Escherichia coli / Q000187:drug effects / Q000254:growth & development; D006244:Hardness; D007711:Klebsiella pneumoniae / Q000187:drug effects / Q000254:growth & development; D053768:Metal Nanoparticles / Q000737:chemistry* / Q000648:ultrastructure; D008826:Microbial Sensitivity Tests; D046529:Microscopy, Electron, Transmission; D053761:Nanocomposites / Q000737:chemistry* / Q000648:ultrastructure; D013211:Staphylococcus aureus / Q000187:drug effects / Q000254:growth & development
D000900:Anti-Bacterial Agents; D004853:Epoxy Resins; D003300:Copper; C000520:cuprous oxide
Antimicrobial protection; Cu(2)O nanoparticles; Thermal stability