Functional Surface Coating on Cellulosic Flexible Substrates with Improved Water-Resistant and Antimicrobial Properties by Use of ZnO Nanoparticles

Abstract

It is of significant interest to create functional flexible surfaces that simultaneously exhibit high water-resistance and antimicrobial performances for medical or packaging applications. This study reported a synthesis of functional surface coating on flexible cellulose materials (filter papers) with ZnO nanoparticles and binds of renewable soybean oil-based polymers. Self-aggregation of ZnO nanoparticles could form ZnO particles with two regular morphological patterns. Rather than a rod-like morphology, a flower-like ZnO benefited a promotion of surface hydrophobicity. Moreover, surface with the flower-like ZnO showed a 51.6% promotion on antimicrobial activities against Gram-negative bacteria (E. coli) than the rod-like ZnO. A low binder/ZnO ratio of 0.2 led to a remarkable improvement on water repelling performances without negative effects on a coating adhesion of ZnO. Under this condition, a hydrophobic surface was achieved with a large static contact angle of 138° when applying ZnO nanoparticles at a dosage of 3 g m−2.

Recent advances in functionalization of nanotextiles: A strategy to combat harmful microorganisms and emerging pathogens in the 21st century

“…Nanotextiles are fabric materials that have been functionalized with nanoparticles to give some benefits such as water resistance [ 53 ], odor and moisture removal [ 54 ], better elasticity and strength, and microbial resistance [ 55 ], fire retardancy [ 56 ] as well as UV absorption, drug delivery, electronic and biomedical capabilities among other innovative applications [ 57 , 58 ]. It has been projected that nanotextiles will dominate advances in the textile industry due to the unique opportunities that they offer [ 57 ].…”

Enhanced Water Resistance of Recycled Newspaper/High Density Polyethylene Composite Laminates via Hydrophobic Modification of Newspaper Laminas

“…Some efforts have been made in developing a hydrophobic/superhydrophobic paper sheets to improve the water resistance [13]. It is well known that both high surface Polymers 2021, 13, 421 2 of 12 roughness with micro/nanoscale structures and low surface energy are beneficial to create a hydrophobic/superhydrophobic coating on paper sheet [14][15][16][17][18][19]. However, some disadvantages still should be considered.…”

Characterization of Zinc Oxide-Urea Formaldehyde Nano Resin and Its Impact on the Physical Performance of Medium-Density Fiberboard

“…The main aims are to study the physical properties, i.e., water absorption and thickness swelling of MDF, by examining the effects of using different ZnO nanoparticles weight percentages in its resin content. Because of its promising functional properties, ZnO was introduced in this study to create functional flexible surfaces that simultaneously exhibit high water-resistance [ 9 ]. A brief literature review of nanoparticle-based composites is illustrated here.…”