MCM-41-HDTMS纳米颗粒增强ORMOSIL超疏水涂层的防腐蚀性能

IF 2.3 4区 材料科学 Q2 Chemistry Journal of Coatings Technology and Research Pub Date : 2022-09-26 DOI:10.1007/s11998-022-00675-1
Erik Uc-Fernández, Jorge González-Sánchez, Alejandro Ávila-Ortega, Yamile Pérez-Padilla, J. Manuel Cervantes-Uc, Javier Reyes-Trujeque, William A. Talavera-Pech
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引用次数: 3

摘要

研究了十六烷基三甲氧基硅烷(HDTMS)功能化MCM-41硅微粒(MCM-41-HDTMS)在甲基三乙氧基硅烷(MTES)溶胶-凝胶基涂层中的防腐性能。利用HDTMS合成MCM-41颗粒并将其功能化,并将其添加到MTES:甲醇:NH4OH 7M组成的溶胶中,形成涂层。采用浸渍法将MCM-41-HDTMS合成的材料沉积在Cu和Fe薄片上,并利用扫描电子显微镜(SEM)、原子力显微镜(AFM)、接触角、表面能(Owens, Wendt, Rabel, Kaelble (OWRK)法和电化学阻抗谱(EIS)对材料进行了物理表征。MCM-41-HDTMS加入到MTES基体后,接触角增加了约10度,分散成分增加,这是由于HDTMS的长碳链沉积在MCM-41颗粒的高表面积上,使cu - mes -HDTMS样品从疏水变为超疏水,接触角为155°。EIS结果表明,MCM-41-HDTMS的加入增加了电荷转移电阻,对金属有更好的保护作用。结果表明,在MTES基体中加入MCM-41-HDTMS,可以合成出限制腐蚀降解过程的超疏水涂层。图形抽象
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Anticorrosive properties of a superhydrophobic coating based on an ORMOSIL enhanced with MCM-41-HDTMS nanoparticles for metals protection

The anticorrosive properties of hexadecyltrimethoxysilane (HDTMS) functionalized MCM-41 silica particles (MCM-41-HDTMS) incorporated into a methyltriethoxysilane (MTES) sol-gel matrix coatings were studied. The MCM-41 particles were synthesized and functionalized with HDTMS, and added to a sol composed of MTES:methanol:NH4OH 7M to create a coating. The materials synthesized with and without MCM-41-HDTMS were deposited, by dip coating, on Cu and Fe sheets, and were physically characterized by scanning electron microscopy (SEM), atomic force microscopy (AFM), contact angle, surface energy using the Owens, Wendt, Rabel, and Kaelble (OWRK) method, and by electrochemical impedance spectroscopy (EIS). The addition of the MCM-41-HDTMS to the MTES matrix induced an increase of the contact angle by about 10 degrees with an augment in its dispersive component, caused by a lofty deposition of long carbon chains from HDTMS over the high surface area of the MCM-41 particles, changing from hydrophobic to superhydrophobic materials with a contact angle of 155° for the Cu-MTES-HDTMS sample. EIS results show that the addition of MCM-41-HDTMS increases the charge transfer resistance providing better protection to metals. The results show that with the addition of MCM-41-HDTMS to an MTES matrix it is possible to synthesize superhydrophobic coatings capable of limiting the corrosion degradation process.

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来源期刊
Journal of Coatings Technology and Research
Journal of Coatings Technology and Research CHEMISTRY, APPLIED-MATERIALS SCIENCE, COATINGS & FILMS
CiteScore
4.40
自引率
8.70%
发文量
0
期刊介绍: Journal of Coatings Technology and Research (JCTR) is a forum for the exchange of research, experience, knowledge and ideas among those with a professional interest in the science, technology and manufacture of functional, protective and decorative coatings including paints, inks and related coatings and their raw materials, and similar topics.
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