适用于多种基材的二氧化硅颗粒基涂层具有持久的超疏水性,耐磨性和缓蚀性

IF 3.9 2区 化学 Q2 CHEMISTRY, MULTIDISCIPLINARY
Chuangye Wang*, Jianing Ge, Mengyu Cui, Jintang Xue, Huili Liu, Xinrong Song and Xinyi Zhang, 
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引用次数: 0

摘要

本文报道了一种基于二氧化硅Janus颗粒的耐久超疏水涂层的制备。二氧化硅颗粒的一面经(3-氨基丙基)三乙氧基硅烷改性后具有反应性烷基胺基团,另一面经十八烷基三甲氧基硅烷处理后疏水。这些Janus颗粒通过粘合剂分子与附着在Janus颗粒上的胺反应并粘附在不同的基底上,形成超疏水涂层。涂层的水接触角大于158°,而滑动角低至2°。即使在200次剧烈磨损或在3.5% NaCl溶液中浸泡60天后,它们的疏水性仍然保持不变,证明它们具有持久的耐磨损和耐腐蚀性能。所提出的Janus二氧化硅颗粒基涂层最显著的性能是它可以牢固地粘附在多种基材上,如活性金属铝、平板基材玻璃、生物材料木材和具有低表面能的有机聚合物聚全氟乙烯。此外,制备的涂层的疏水性、抗磨性和缓蚀能力与基体无关。这种优势使该涂层能够覆盖许多具有不同表面性能的基材,以满足各种技术要求。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

Silica Janus Particle-Based Coating Applicable to Multiple Substrates Shows Durable Superhydrophobicity, Wear Resistance, and Corrosion Inhibition

Silica Janus Particle-Based Coating Applicable to Multiple Substrates Shows Durable Superhydrophobicity, Wear Resistance, and Corrosion Inhibition

The present work reports the fabrication of a durable superhydrophobic coating based on silica Janus particles. One side of the silica particles was modified by (3-aminopropyl)triethoxysilane to have a reactive alkylamine group, and the other side was treated with octadecyltrimethoxysilane to be hydrophobic. These Janus particles were held together by binder molecules that reacted with the amines attached to the Janus particles and adhered to different substrates, forming superhydrophobic coatings. The water contact angles of the coatings were higher than 158°, whereas their sliding angles were as low as 2°. Their hydrophobicity was preserved even after 200 cycles of intensive abrasion or after 60 days of immersion in 3.5% NaCl solution, evidencing their durable resistance to abrasion and corrosion. The most remarkable property of the presented Janus silica particle-based coating is that it can strongly adhere to multiple substrates such as active metal aluminum, flat substrate glass, biological material wood, and organic polymer with low surface energy polyperfluoroethylene. Moreover, the hydrophobicity, antiwear resistance, and corrosion inhibition ability of the fabricated coating were independent of the substrates. This superiority enables this coating to cover many substrates with different surface properties to fulfill a variety of technical demands.

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来源期刊
Langmuir
Langmuir 化学-材料科学:综合
CiteScore
6.50
自引率
10.30%
发文量
1464
审稿时长
2.1 months
期刊介绍: Langmuir is an interdisciplinary journal publishing articles in the following subject categories: Colloids: surfactants and self-assembly, dispersions, emulsions, foams Interfaces: adsorption, reactions, films, forces Biological Interfaces: biocolloids, biomolecular and biomimetic materials Materials: nano- and mesostructured materials, polymers, gels, liquid crystals Electrochemistry: interfacial charge transfer, charge transport, electrocatalysis, electrokinetic phenomena, bioelectrochemistry Devices and Applications: sensors, fluidics, patterning, catalysis, photonic crystals However, when high-impact, original work is submitted that does not fit within the above categories, decisions to accept or decline such papers will be based on one criteria: What Would Irving Do? Langmuir ranks #2 in citations out of 136 journals in the category of Physical Chemistry with 113,157 total citations. The journal received an Impact Factor of 4.384*. This journal is also indexed in the categories of Materials Science (ranked #1) and Multidisciplinary Chemistry (ranked #5).
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