Lutviasari Nuraini, Joko Triwardono, Rahma Nisa Hakim, Rahadian Roberto, Fadli Rohman, Yudi Nugraha Thaha, Albertus Deny Heri Setyawan, Aprilia Erryani
{"title":"无机溶胶-凝胶硅烷/有机聚己内酯复合涂层增强AZ31B镁合金的防腐性能","authors":"Lutviasari Nuraini, Joko Triwardono, Rahma Nisa Hakim, Rahadian Roberto, Fadli Rohman, Yudi Nugraha Thaha, Albertus Deny Heri Setyawan, Aprilia Erryani","doi":"10.1007/s10971-025-06804-7","DOIUrl":null,"url":null,"abstract":"<div><p>The silane inorganic coating and its hybrid with organic polycaprolactone (PCL) have been developed to improve the corrosion resistance of a magnesium alloy (AZ31B). This study investigates the effects of the aging time of the sol materials for the inorganic coating and its combination with PCL on the corrosion properties of AZ31B. The corrosion behavior was examined using potentiodynamic polarization and electrochemical impedance spectroscopy in a 3.5 wt% NaCl at room temperature. The organic monolayer was prepared by a sol-gel route using tetraethyl orthosilicate (TEOS) and 3-mercaptopropyltrimethoxysilane (MPTMS) precursors. The prolonged aging time of the TEOS/MPTMS sol, from 1 to 7 days, increases the hydrophobicity, roughness, and corrosion resistance of the coating. The combination of TEOS/MPTMS with PCL decreases the hydrophobicity of the coating layer. Moreover, the hybrid double-layer coating of TEOS/MPTMS with PCL on the AZ31B alloy significantly enhances the corrosion resistance by 10 times compared to that of the monolayer TEOS/MPTMS coating.</p><h3>Graphical Abstract</h3><div><figure><div><div><picture><source><img></source></picture></div><div><p>Schematic of the inorganic sol–gel TEOS/MPTMS coating route (<b>a</b>) and organic polycaprolactone (PCL) coating route (<b>b</b>)</p></div></div></figure></div></div>","PeriodicalId":664,"journal":{"name":"Journal of Sol-Gel Science and Technology","volume":"115 1","pages":"171 - 187"},"PeriodicalIF":3.2000,"publicationDate":"2025-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Hybrid inorganic sol-gel silane/organic polycaprolactone coatings for enhanced corrosion protection on AZ31B magnesium alloy\",\"authors\":\"Lutviasari Nuraini, Joko Triwardono, Rahma Nisa Hakim, Rahadian Roberto, Fadli Rohman, Yudi Nugraha Thaha, Albertus Deny Heri Setyawan, Aprilia Erryani\",\"doi\":\"10.1007/s10971-025-06804-7\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>The silane inorganic coating and its hybrid with organic polycaprolactone (PCL) have been developed to improve the corrosion resistance of a magnesium alloy (AZ31B). This study investigates the effects of the aging time of the sol materials for the inorganic coating and its combination with PCL on the corrosion properties of AZ31B. The corrosion behavior was examined using potentiodynamic polarization and electrochemical impedance spectroscopy in a 3.5 wt% NaCl at room temperature. The organic monolayer was prepared by a sol-gel route using tetraethyl orthosilicate (TEOS) and 3-mercaptopropyltrimethoxysilane (MPTMS) precursors. The prolonged aging time of the TEOS/MPTMS sol, from 1 to 7 days, increases the hydrophobicity, roughness, and corrosion resistance of the coating. The combination of TEOS/MPTMS with PCL decreases the hydrophobicity of the coating layer. Moreover, the hybrid double-layer coating of TEOS/MPTMS with PCL on the AZ31B alloy significantly enhances the corrosion resistance by 10 times compared to that of the monolayer TEOS/MPTMS coating.</p><h3>Graphical Abstract</h3><div><figure><div><div><picture><source><img></source></picture></div><div><p>Schematic of the inorganic sol–gel TEOS/MPTMS coating route (<b>a</b>) and organic polycaprolactone (PCL) coating route (<b>b</b>)</p></div></div></figure></div></div>\",\"PeriodicalId\":664,\"journal\":{\"name\":\"Journal of Sol-Gel Science and Technology\",\"volume\":\"115 1\",\"pages\":\"171 - 187\"},\"PeriodicalIF\":3.2000,\"publicationDate\":\"2025-05-28\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Journal of Sol-Gel Science and Technology\",\"FirstCategoryId\":\"88\",\"ListUrlMain\":\"https://link.springer.com/article/10.1007/s10971-025-06804-7\",\"RegionNum\":4,\"RegionCategory\":\"材料科学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"MATERIALS SCIENCE, CERAMICS\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Sol-Gel Science and Technology","FirstCategoryId":"88","ListUrlMain":"https://link.springer.com/article/10.1007/s10971-025-06804-7","RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"MATERIALS SCIENCE, CERAMICS","Score":null,"Total":0}
Hybrid inorganic sol-gel silane/organic polycaprolactone coatings for enhanced corrosion protection on AZ31B magnesium alloy
The silane inorganic coating and its hybrid with organic polycaprolactone (PCL) have been developed to improve the corrosion resistance of a magnesium alloy (AZ31B). This study investigates the effects of the aging time of the sol materials for the inorganic coating and its combination with PCL on the corrosion properties of AZ31B. The corrosion behavior was examined using potentiodynamic polarization and electrochemical impedance spectroscopy in a 3.5 wt% NaCl at room temperature. The organic monolayer was prepared by a sol-gel route using tetraethyl orthosilicate (TEOS) and 3-mercaptopropyltrimethoxysilane (MPTMS) precursors. The prolonged aging time of the TEOS/MPTMS sol, from 1 to 7 days, increases the hydrophobicity, roughness, and corrosion resistance of the coating. The combination of TEOS/MPTMS with PCL decreases the hydrophobicity of the coating layer. Moreover, the hybrid double-layer coating of TEOS/MPTMS with PCL on the AZ31B alloy significantly enhances the corrosion resistance by 10 times compared to that of the monolayer TEOS/MPTMS coating.
Graphical Abstract
Schematic of the inorganic sol–gel TEOS/MPTMS coating route (a) and organic polycaprolactone (PCL) coating route (b)
期刊介绍：
The primary objective of the Journal of Sol-Gel Science and Technology (JSST), the official journal of the International Sol-Gel Society, is to provide an international forum for the dissemination of scientific, technological, and general knowledge about materials processed by chemical nanotechnologies known as the "sol-gel" process. The materials of interest include gels, gel-derived glasses, ceramics in form of nano- and micro-powders, bulk, fibres, thin films and coatings as well as more recent materials such as hybrid organic-inorganic materials and composites. Such materials exhibit a wide range of optical, electronic, magnetic, chemical, environmental, and biomedical properties and functionalities. Methods for producing sol-gel-derived materials and the industrial uses of these materials are also of great interest.
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