Al2O3-TiO2-PMMA Bio-Composite Coating Via Electrostatic Spray Technique

Abstract

This work aims preparation of polymer-based biocomposite coating by electrostatic spray method onto 316L stainless steel substrate, the present work will compare the effects of incorporation of Al2O3 and TiO2 particles at a different percentage of (10,15 and 20 % wt. from Al2O3 and TiO2 with (90,85 and 80% wt. PMMA - based electrostatic deposition coating is studied. The structure and chemical composition of composite coatings were studied by using (SEM) & (EDS) and mechanical properties (Microhardness and adhesion strength) of Al2O3-TiO2-PMMA composite coating. The SEM&EDX result showed that the composite coating to be dense with uniform dispersants and continuous with a well homogenous mixture within coating exhibits a much-increased Microhardness and remarkably improved adhesion strength.

Electrostatic Deposition of Poly(Methyl Methacrylate)/Titanium Carbide Coatings on Austenitic 316L Stainless Steel Implant

“…Therefore, this study attempts to increase the alloy's resistance against corrosion while maintaining its good mechanical properties by applying a modified coating layer of PMMA-based composites titanium carbide as reinforcement material using dry electrostatic spray deposition (ESD) under constant conditions (25 kV, 15-20 cm distance, compressed air of 15 psi, and spraying angle about 45.0o for 3 0sec). The titanium carbide was added with ratios of (5,10,15,20) wt. % respectively.…”

“…They found that HA with 3% SiC coating gives the optimized requirements, with a low micro-cracks level compared with other coatings [9]. In 2021, Issa et al fabricated a thin film of PMMA-based composite coating with various bio-ceramic materials as reinforcements using an electrostatic deposition [10]. FESEM & EDS were used to study the surface morphology; the coating hardness and adhesion were studied using mechanical tests.…”

Investigation of Roughness, Morphology, and Wettability Characteristics of Biopolymer Composite Coating on SS 316L for Biomedical Applications

“…Analysis through scanning electron microscopy (SEM) and energy-dispersive X-ray spectroscopy (EDX) revealed robust adhesion and enhanced performance in biological environments, simulated through the utilization of simulated body fluid (SBF). Issa et al [ 16 ] deposited a thin layer of poly methyl methacrylate (PMMA) reinforced with diverse bioceramics onto a stainless-steel substrate using electrostatic deposition. The resulting coating exhibited homogeneity, without any signs of cracking, and demonstrated satisfactory mechanical characteristics.…”

Preparation of Bio-Composite Coatings on Titanium Substrate by Electrostatic Spray Deposition

“…Electrostatic spray deposition (ESD) has however lately gained interest as a "solvent-free dry-powder coating technology" for implants. Fast deposition time, energy savings, and a significant reduction in operating costs are just a few of the reasons why ESD has gained interest over alternative powder deposition technologies [15,16,17].…”