Synthesis and Characterization of Polyvinyl Alcohol/Chitosan-Reinforced TiO<sub>2</sub> Composite Coating on Biodegradable Magnesium Alloy

doi:10.1007/s11665-025-10930-2

IMR OpenIR

	Synthesis and Characterization of Polyvinyl Alcohol/Chitosan-Reinforced TiO₂ Composite Coating on Biodegradable Magnesium Alloy
	Siddiqui, Muhammad Ali 1,7; Asghar, Muhammad Sajid Ali 2; Alam, Syed Shahzaib 2; Iqbal, Nimra 1; Ullah, Ihsan 4; Chen, Junxiu 3; Shar, Muhammad Ali 6; Alhazaa, Abdulaziz 5,6; Yang, Ke 7; Siyal, Sajid Hussain 8
通讯作者	Siddiqui, Muhammad Ali(m.siddiqui@cloud.neduet.edu.pk)
	2025-03-08
发表期刊	JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE
ISSN	1059-9495
页码	15
摘要	In this research, we addressed the challenge of the rapid degradation of magnesium alloys, particularly AZ31B, which have great potential to be widely used in biomedical applications. To mitigate this issue, we developed a composite coating comprising polyvinyl alcohol (PVA), chitosan (CS), and titanium dioxide (TiO2) nanoparticles, in order to enhance the corrosion performance of the magnesium alloy. Our approach involved chemically synthesizing TiO2 particles (4-20 nm) and incorporating them into PVA and PVA/chitosan matrices at varying weight percentages, which affect the amino group. We employed x-ray diffraction (XRD), scanning electron microscopy (SEM), and Fourier transform infrared spectroscopy (FTIR) for comprehensive characterization, confirming the successful synthesis of TiO2 particles and the formation of composite coatings. The XRD analysis revealed the rutile phase of TiO2 particles with an average crystal size conducive to effective reinforcement, while SEM imaging showcased the spherical morphology of TiO2 particles. FTIR spectroscopy further elucidated the chemical bonding among TiO2, PVA, and chitosan, validating the composite's structural integrity. Notably, atomic force microscopy (AFM) analysis demonstrated a significant reduction in surface roughness post-coating, indicating improved biocompatibility, a crucial factor in biomedical applications. Additionally, the hydrophobic nature of the PVA/TiO2-based coating and the hydrophilic character of the PVA/TiO2/CS-based composite coating were revealed through water contact angle measurements, offering versatile surface properties for different biomedical requirements. Furthermore, our investigation into the electrochemical behavior of the coated magnesium alloy in a 0.9% NaCl solution highlighted a notable enhancement in corrosion resistance. Potentiodynamic polarization (PD) characteristics, such as E-corr (- 1.51 to - 0.18 V) and I-corr 5.44 x 10(-7 )A/cm(2), were observed, emphasizing the effectiveness of the composite coating in protecting the magnesium surface from degradation.
关键词	characterization functional coating magnesium PVA/Chitosan/TiO2
资助者	King Saud University, Riyadh, Saudi Arabia
DOI	10.1007/s11665-025-10930-2
收录类别	SCI
语种	英语
资助项目	King Saud University, Riyadh, Saudi Arabia[RICSP-25-1]
WOS研究方向	Materials Science
WOS类目	Materials Science, Multidisciplinary
WOS记录号	WOS:001439861800001
出版者	SPRINGER
引用统计
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/179809
专题	中国科学院金属研究所
通讯作者	Siddiqui, Muhammad Ali
作者单位	1.NED Univ Engn & Technol, Dept Met Engn, Computat & Expt Mat Innovat Grp CEMIG, Karachi 75270, Pakistan 2.NED Univ Engn & Technol, Dept Mat Engn, Karachi 75270, Pakistan 3.Changzhou Univ, Key Lab Mat Surface Sci & Technol Jiangsu Prov, Changzhou, Peoples R China 4.Univ Chinese Acad Sci, Wenzhou Inst, Zhejiang Engn Res Ctr Tissue Repair Mat, Wenzhou 325011, Zhejiang, Peoples R China 5.King Saud Univ, Coll Sci, Dept Phys & Astron, Riyadh 11451, Saudi Arabia 6.King Saud Univ, King Abdullah Inst Nanotechnol, Riyadh 11451, Saudi Arabia 7.Chinese Acad Sci, Inst Met Res, Shi Chang Xu Innovat Ctr Adv Mat, Shenyang, Peoples R China 8.Dawood Univ Engn & Technol Karachi, Dept Met & Mat Engn, Karachi 75300, Pakistan
推荐引用方式 GB/T 7714	Siddiqui, Muhammad Ali,Asghar, Muhammad Sajid Ali,Alam, Syed Shahzaib,et al. Synthesis and Characterization of Polyvinyl Alcohol/Chitosan-Reinforced TiO₂ Composite Coating on Biodegradable Magnesium Alloy[J]. JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE,2025:15.
APA	Siddiqui, Muhammad Ali.,Asghar, Muhammad Sajid Ali.,Alam, Syed Shahzaib.,Iqbal, Nimra.,Ullah, Ihsan.,...&Siyal, Sajid Hussain.(2025).Synthesis and Characterization of Polyvinyl Alcohol/Chitosan-Reinforced TiO₂ Composite Coating on Biodegradable Magnesium Alloy.JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE,15.
MLA	Siddiqui, Muhammad Ali,et al."Synthesis and Characterization of Polyvinyl Alcohol/Chitosan-Reinforced TiO₂ Composite Coating on Biodegradable Magnesium Alloy".JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE (2025):15.