Electrostatic Deposition of Bio-Composite Polymer/Hydroxyapatite Coatings on 316L Stainless Steel

Abstract:

The present work aims to prepare polymer-based biocomposite coated layers by electrostatic spray method onto a 316L stainless steel substrate. Different percentages of ( 2,4, and 8) wt.% of Hydroxyapatite (HA) with (98,96, and92) wt.% of PMMA were used to prepare the composite coating. Wettability, phase composition, and surface morphology were studied using contact angle measurement, X-ray diffraction, and scanning electron microscopy techniques respectively. The results revealed that a homogenous, uniform, and crack-free coating layers were obtained. The wettability testing indicated increased hydrophobicity of the coatings with the addition of hydroxyapatite particles where the 8wt.%HA applied the highest contact angle of (104.08^o).The average thickness was about (400µm) for the coating layer deposited on the substrates using the electrostatic technique, whereas the average diameter coating was about (33.95µm).

• Periodical: Key Engineering Materials (Volume 911)
• Pages: 40-45
• DOI: https://doi.org/10.4028/p-40btz7
• Online since: February 2022
• Authors: Ghofran Dhafer*, Mohanad N. Al-Shroofy, Hanna A. Al-Kaisy
• Keywords: Composite Coatings, Electrostatic Spray, Implants

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