Water-Borne ZnO/Acrylic Nanocoating: Fabrication, Characterization, and Properties

Abstract

This work aims to explore how ZnO nanoparticles enhance the mechanical, photoaging, and self‑cleaning properties of water‑borne acrylic coating. Micro/nano‑ZnO particles (at 2 wt.% of total solid resin) were dispersed into the acrylic polymer matrices using ultrasonication to understand the effect of the size of the coating properties. The effect of ZnO particles on the properties of composite coatings (25 µm of thick) have been evaluated through various tests, such as abrasion measurement, ultraviolet/condensation (UV/CON) weathering aging, and methylene blue self‑cleaning. Experimental data indicated that the incorporation of ZnO particles enhanced both abrasion resistance and methylene blue removal efficiency of the water‑borne acrylic coatings, with nano‑ZnO particles being the best. However, the weathering degradation of nanocomposite coatings was more severe as compared to the coating with micro‑ZnO (at the same ZnO content).

Crosslinking, Mechanical Properties, and Antimicrobial Activity of Photocurable Diacrylate Urethane/ZnO-Ag Nanocomposite Coating

“…In the presence of 2 wt% ZnO-Ag nanohybrids, the conversion of the acrylate groups is affected by photocatalytic characteristic of nano ZnO-Ag hybrid structure. This effect is similar to the case of photocatalyst nanoparticles (A-TiO 2 , ZnO) [34][35][36][37]. The difference is that due to the hybridization with Ag, the photocatalytic activity of ZnO is reinforced.…”

Potential Applications of Geopolymer Cement-Based Composite as Self-Cleaning Coating: A Review

“…It was believed that the addition of nano-TiO 2 as photocatalyst into cement-based material has won great attention and wide applications in large-scale due to its features in terms of chemical stability, high photocatalytic activity, low price, easy availability, high dielectric constant, weather ability, antimicrobial prosperities, and stability under UV radiation, and the problem of urban air pollutants was solved due to its self-cleaning, self-disinfecting, and air purifying properties, contributing to the environmental pollution cleansing [20,21,53,72,73].…”

A Comprehensive Study on the Effect of ZnO and ZnAl2O4 Nanoparticles on the Mechanical Properties of Epoxy Coating: Tensile and Hardness

“…Additionally, several research papers have discussed the effect of ZnO NPs on the mechanical properties of different coatings. ZnO NPs added into acrylic coating (Vu et al, 2021), polyurethane acrylate coating (Ariffin et al, 2020), and alkyd coating (Sturdy et al, 2020) showed an improvement in the mechanical properties of the coatings. To our knowledge, the effect of ZnAl 2 O 4 NPs on the mechanical properties of epoxy coating has not been previously studied.…”