Polycaprolactone/ZnO coating on WE43 magnesium alloy combined with a MgO/MgCO3 transition layer for promoting anticorrosion and interfacial adhesion

Xing, Kai; Chen, Qinsheng; Lin, Jixing; Hu, Zunying; Li, Zhongxu; Chen, Jiayi; Xu, Xueer; Gu, C.D.; Tu, Jiangping

doi:10.1016/j.porgcoat.2022.107029

Cited by 10 publications

(2 citation statements)

References 49 publications

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“…PCL is a nontoxic polymer, which produces carbon dioxide (CO 2 ) and water (H 2 O)—products harmless to human body degradation [ 24 ]. PCL is applied in many studies [ 25 , 26 , 27 , 28 , 29 ] and clinical practice, and according to the Food and Drug Administration (FDA), it is a bioresorbable polymer [ 30 ]. This polymer is applied in the production of tissue scaffolds [ 31 ].…”

Section: Introductionmentioning

confidence: 99%

New Polycaprolactone-Containing Self-Healing Coating Design for Enhance Corrosion Resistance of the Magnesium and Its Alloys

et al. 2022

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The method of hybrid coating formation on the surface of a bioresorbable wrought magnesium alloy and magnesium obtained by additive technology was proposed. Plasma electrolytic oxidation (PEO) with subsequent treatment of the material using an organic biocompatible corrosion inhibitor and a bioresorbable polymer material was used to obtain the protective layers. The optimal method of surface treatment was suggested. Using SEM/EDX analysis, XRD, XPS, and confocal Raman microspectroscopy, the composition of the formed surface layers was determined. The corrosion protection performance of the formed coatings was studied by potentiodynamic polarization and electrochemical impedance spectroscopy techniques in 0.9 wt.% NaCl and HBSS. Hydrogen evolution and mass loss tests were performed to study the corrosion rate of samples with different types of protective coatings. Sealing the pores of PEO coating with a polymeric material contributes to a significant reduction in the amount of the inhibitor diffusing into a corrosive medium. The best barrier properties were established for the hybrid coating formed with a one-stage application of benzotriazole and polycaprolactone. Such layers reduce the rate of alloy degradation due to active protection.

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Section: Introductionmentioning

confidence: 99%

New Polycaprolactone-Containing Self-Healing Coating Design for Enhance Corrosion Resistance of the Magnesium and Its Alloys

et al. 2022

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“…Natural and synthetic polymers can be combined with PCL. Adding ceramic particles such as TiO 2 , Bioglass, and HA to PCL makes it possible to improve its bio-properties [57–60]. Several methods are available for producing a structure similar to the natural structure of bone tissue, including sol–gel, phase separation, and electrospinning.…”

Section: Resultsmentioning

confidence: 99%

Corrosion fatigue behaviour of electrospun PCL/HA coated magnesium biocomposites

Shamsi,

Sedighi

2023

Surface Engineering

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Magnesium implants are susceptible to premature failure due to corrosion and cyclic loading within the body. Composite fibre coatings are effective at reducing corrosion in magnesium materials. In this study, an Mg/HA composite was fabricated, and microscopic and mechanical characterisation was performed. The samples were then electrospun with PCL/ 2.5%HA fibres, and corrosion behaviour was explored by immersion tests. Finally, rotary bending fatigue tests in air and SBF environments were conducted. According to the findings, the Mg/2.5%HA and coated Mg/2.5%HA samples can withstand more than 1 million cycles under 60 MPa. Compared to pure Mg, Mg/2.5%HA has better corrosion and corrosion fatigue resistance. Furthermore, a PCL/2.5%HA fibre coating can increase the corrosion fatigue resistance of Mg/2.5%HA as a result of the polymer scaffold, passive protective layer, and apatite adsorption capability. Results suggest that Mg/2.5%HA composites coated with PCL/2.5%HA fibres are potentially suitable for use in orthopaedic biomaterials.

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Hydroxyapatite/palmitic acid superhydrophobic composite coating on AZ31 magnesium alloy with both corrosion resistance and bacterial inhibition

Zhang,

Cai,

Zhang

et al. 2024

Front. Mater. Sci.

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Polycaprolactone/ZnO coating on WE43 magnesium alloy combined with a MgO/MgCO3 transition layer for promoting anticorrosion and interfacial adhesion

Cited by 10 publications

References 49 publications

New Polycaprolactone-Containing Self-Healing Coating Design for Enhance Corrosion Resistance of the Magnesium and Its Alloys

New Polycaprolactone-Containing Self-Healing Coating Design for Enhance Corrosion Resistance of the Magnesium and Its Alloys

Corrosion fatigue behaviour of electrospun PCL/HA coated magnesium biocomposites

Hydroxyapatite/palmitic acid superhydrophobic composite coating on AZ31 magnesium alloy with both corrosion resistance and bacterial inhibition

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