用于软钢超疏水聚合物涂层的高效纳米核壳结构的制备

Jaya Verma, Deepak Kumar, BS Sikarwar
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引用次数: 5

摘要

本研究工作涉及涉及纳米二氧化硅-二氧化钛核-壳粒子的聚合物超疏水表面的开发。这种核壳结构以一种出色的方式增强了单个纳米颗粒中两种不同材料的性能;以二氧化硅为核心的聚合物涂层和以二氧化钛为外壳的聚合物涂层分别改善了涂层表面的力学性能和疏水性。采用溶胶-凝胶法和凝胶化法分别在高温和低温下制备纳米核壳。进一步研究了制备的纳米颗粒在溶剂型乳剂和水基乳剂中的表面性能。在低碳钢基体上研制了纳米涂层配方,进行了涂层力学性能分析和接触角测量。在涂层配方中,纳米核壳浓度范围为1% (wt)至6% (wt),所使用的纳米颗粒被甲基三甲氧基硅烷功能化,以获得更好的表面性能。根据实验结果,发现核壳纳米涂层具有机械坚固性和超疏水性(~ 145.1°±2°)涂层。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Fabrication of highly efficient nano core–shell structure for the development of super-hydrophobic polymeric coating on mild steel
This research work deals with the development of a polymeric super-hydrophobic surface involving nano silica–titania core–shell particles. This core–shell structure enhanced the properties of two different materials in a single nanoparticle in an outstanding manner; polymeric coatings containing core silica and shell titania have improved the mechanical behavior and hydrophobicity of coating surfaces, respectively. This nano core–shell was synthesized through two different methodologies which were prepared at high and low processing temperature separately, that is, called sol–gel and peptization synthesis. Further surface properties of the prepared nanoparticles were investigated individually in solvent-based emulsions and water-based emulsions. Nanocoating formulations were developed on mild steel substrate for analysis on the mechanical behavior of the coating and contact angle measurement. In the coating formulation, nano core–shell concentrations ranged from 1% (wt) to 6% (wt), and used nanoparticles were functionalized with methyl trimethoxy silane for better surface properties. Based on the results of the experiment, core–shell nanocoatings have been found mechanically robust and superhydrophobic (∼145.1° ± 2°) coating.
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