王晶彦,张德秋,牟立婷,何欣,李慕勤.电泳沉积壳聚糖/绿原酸复合涂层的耐蚀性能[J].表面技术,2021,50(6):85-92.
WANG Jing-yan,ZHANG De-qiu,MU Li-ting,HE Xin,LI Mu-qin.Corrosion Resistance of Chitosan/Chlorogenic Acid Composite Coating Prepared by Electrophoretic Deposition[J].Surface Technology,2021,50(6):85-92 |
| 电泳沉积壳聚糖/绿原酸复合涂层的耐蚀性能 |
| Corrosion Resistance of Chitosan/Chlorogenic Acid Composite Coating Prepared by Electrophoretic Deposition |
| 投稿时间：2021-05-15 修订日期：2021-06-02 |
| DOI：10.16490/j.cnki.issn.1001-3660.2021.06.008 |
| 中文关键词: 镁 电泳沉积 超声微弧氧化 绿原酸 耐蚀性 |
| 英文关键词:magnesium electrophoretic deposition ultrasonic micro-arc oxidation chlorogenic acid corrosion resistance |
| 基金项目:省教育厅项目基本科研业务费基础研究项目(2020-KYYWF-0253) |
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| Author | Institution |
| WANG Jing-yan | Key Lab of Oral Biomedical Materials and Clinical Application of Heilongjiang Province;Engineering Research Center of the Ministry of Education on Metal Wear Resistant Materials and Surface Technology, School of Materials Science and Engineering, Jiamusi University, Jiamusi 154007, China |
| ZHANG De-qiu | Key Lab of Oral Biomedical Materials and Clinical Application of Heilongjiang Province;Engineering Research Center of the Ministry of Education on Metal Wear Resistant Materials and Surface Technology, School of Materials Science and Engineering, Jiamusi University, Jiamusi 154007, China |
| MU Li-ting | Key Lab of Oral Biomedical Materials and Clinical Application of Heilongjiang Province;Engineering Research Center of the Ministry of Education on Metal Wear Resistant Materials and Surface Technology, School of Materials Science and Engineering, Jiamusi University, Jiamusi 154007, China |
| HE Xin | Key Lab of Oral Biomedical Materials and Clinical Application of Heilongjiang Province;Engineering Research Center of the Ministry of Education on Metal Wear Resistant Materials and Surface Technology, School of Materials Science and Engineering, Jiamusi University, Jiamusi 154007, China |
| LI Mu-qin | Key Lab of Oral Biomedical Materials and Clinical Application of Heilongjiang Province;Engineering Research Center of the Ministry of Education on Metal Wear Resistant Materials and Surface Technology, School of Materials Science and Engineering, Jiamusi University, Jiamusi 154007, China |
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| 中文摘要: |
| 目的 纯镁超声微弧氧化(UMAO)表面电泳沉积中药提取物绿原酸，提高纯镁的耐蚀性及生物活性。方法 采用电泳沉积(EPD)技术在UMAO表面上制备壳聚糖/绿原酸(CS/CA)涂层。采用扫描电子显微镜、X射线衍射仪、原子力显微镜、X射线光电子能谱、傅里叶变换红外光谱和接触角测量仪，研究不同样品的表面形态、组织结构，并研究涂层腐蚀行为，评价不同样品的耐蚀性。结果 UMAO/CS/CA涂层由Mg、MgO和Mg2SiO4相组成，含有O、C、Mg、Si和N元素，绿原酸涂层中有O—H、芳香烃键、C==O键和苯环的伸缩振动峰。中药提取物和壳聚糖之间的结合主要通过化学结合和物理吸附。UMAO/CS/CA涂层的接触角为104.1°，为疏水性表面。模拟体液环境下电化学腐蚀实验表明，Mg的腐蚀电流密度为1.7569×10−5 A/cm2，UMAO/CS/CA涂层的腐蚀电流密度为3.767×10−6 A/cm2，涂层的自腐蚀电流密度比Mg至少低1个数量级。UMAO/CS/CA涂层能更好地诱导钙磷物质沉积。结论 UMAO/CS/CA涂层既能减小腐蚀溶液与涂层表面的接触面积，又能起到隔绝溶液中离子的作用，使得涂层表面不容易被模拟体液润湿，涂层能为镁基体提供更有效的保护并具有优异的生物活性。 |
| 英文摘要: |
| In order to improve the corrosion resistance and biological activity of pure magnesium, chlorogenic acid extracted from traditional Chinese medicine was deposited on ultrasonic micro-arc oxidation surface by electrophoretic deposition. The surface morphology and organizational structure of various samples were studied by scanning electron microscopy, X-ray diffractometer, atomic force microscopy, X-ray photoelectron spectroscopy, fourier transform infrared spectroscopy and contact angle measuring instrument. The corrosion behavior and resistance of various samples were also studied and evaluated. The main phase composition of UMAO/CS/CA coating is Mg, MgO and Mg2SiO4, and the main elemental compositions are O, C, Mg, Si and N. The stretching vibration peaks of O—H, aromatic hydrocarbon bonds, C==O bonds and benzene rings appear in CA coating. Chinese herbal extract and chitosan are mainly combined by chemical binding and physical adsorption. The UMAO/CS/CA coating is a hydrophobic surface, the contact angle of that is 104.1°. Electrochemical corrosion experiments show that the corrosion current density (Jcorr) of Mg is 1.7569×10−5 A/cm2 in simulated body fluid (SBF) environment. Among them, the icorr of UMAO/CS/CA coating is 3.767×10−6 A/cm2, which reduced by at least one order of magnitude compared to that of Mg. UMAO/CS/CA coating can better induce calcium and phosphor deposition. The UMAO/CS/CA coating can not only reduce the contact area between the corrosion solution and the coating surface, but also isolate the ions in the solution, which is difficult to be wetted by SBF, and can provide more effective protection for the magnesium matrix. UMAO/CS/CA coating has excellent biological activity. |
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