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چکیده
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Certain drawbacks, such as hydrophilicity and dimensional instability due to moisture changes, limit wood applications. Environmental-friendly superhydrophobic coatings with a hierarchical structure could enhance the water resistance of wood. In this study, a long-lasting superhydrophobic coating was successfully fabricated by 3-(trimethoxylcyl)propyl methacrylate (TMPS) functionalized ZnO nanoparticles and poly(dimethyl siloxane) (PDMS) on the maleic rosin (MAR) modifed wood surface at room temperature. According to the results, MAR and functionalized ZnO nanoparticles, respectively, by creating the chemical modifcation and rough surface under PDMS, have improved the physical properties of wood. Fourier transform infrared spectroscopy analysis also confrmed the reaction of wood with MAR, the presence of TMPS-modifed ZnO nanoparticles, and the PDMS coating on the surface. In feld emission scanning electron microscopy micrographs, a suitable hierarchical structure was observed, in which PDMS served as a binding agent for preserving zinc oxide nanoparticles on the surface modifed with MAR. The strong adhesion of PDMS to the modifed wood surface, and the frmly immobilized TMPS- ZnO nanoparticles resulted in satisfactory abrasion resistance of the superhydrophobic structure. Consequently, a superhydrophobic surface with a water contact angle of 161° was developed based on a hierarchical structure involving nanoparticles/silicones coating on MAR-modifed wood.
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