纳米氧化锆多层吸附的模拟及实验研究

doi:10.11896/cldb.20060076

材料导报

2021, Vol. 35

Issue (18): 18040-18046 https://doi.org/10.11896/cldb.20060076

无机非金属及其复合材料

纳米氧化锆多层吸附的模拟及实验研究

张莲芝, 吴张永, 王庭有, 朱启晨, 蔡晓明, 莫子勇

昆明理工大学机电工程学院,昆明 650500

Study on the Simulation and Experiment of Nano-Zirconium Oxide in Multilayer Adsorption

ZHANG Lianzhi, WU Zhangyong, WANG Tingyou, ZHU Qichen, CAI Xiaoming, MO Ziyong

Faculty of Mechanical and Electrical Engineering, Kunming University of Science and Technology, Kunming 650500, China

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摘要采用机械搅拌法制备CTAB-ZrO₂、SDS-ZrO₂、CTAB-SiO₂、SDS-SiO₂纳米磨粒,并深入研究了纳米磨粒的包覆机理。推导出任意表面活性剂浓度下吸附量的计算式及多层吸附的Langmuir2-SCA等温方程,由修正的吸附量计算式可得到不同吸附剂浓度下表面活性剂的吸附量,并运用高浓度表面活性剂溶液下的吸附量检验Langmuir2-SCA等温方程的适用性。通过XRD、FT-IR、FE-SEM等测试手段对样品的结构、光学性质和形貌进行表征,并进行定性和定量分析。结果表明:Langmuir2-SCA等温方程可准确地描述高浓度表面活性剂溶液下的吸附量。相比于SDS-SiO₂纳米颗粒,CTAB-ZrO₂纳米颗粒能吸附更多的表面活性剂、更少的水分子;同时CTAB-ZrO₂具有更好的摩擦磨损性能,且微粒呈球状,粒径分布较均匀,包覆性较好。因此,在磁性磨料研磨加工中,选择CTAB-ZrO₂作为磨粒较好。

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	张莲芝
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关键词: 吸附剂浓度效应等温式方程多层吸附磁性磨粒研磨摩擦磨损性能

Abstract: Abrasive particles CTAB-ZrO₂, SDS-ZrO₂, CTAB-SiO₂, SDS-SiO₂ were prepared by mechanical agitation, the principles of coating of abrasive nanoparticles were deeply studied. In this paper, the calculation formula for the adsorption amount for surfactant solution with any concentrations and the Langmuir2-SCA isothermal equation in multilayer adsorption were derived. Adsorption amount of surfactant at different adsorbent concentrations were obtained from the improved adsorption amount calculation formula, the applicability of the Langmuir2-SCA equation was examined with the adsorption amount for surfactant solution with high concentrations. In addition, the crystalline structures, light absorption pro-perties and morphologies of samples were analysed using XRD, FT-IR, FE-SEM measurement, and the properties of samples were analysed qualitatively and quantitatively. The results showed that the adsorption amount for surfactant solution with high concentrations can be fitted by Langmuir2-SCA isothermal equation; abrasive particles CTAB-ZrO₂ have more adsorption amount of surfactants than abrasive particles SDS-SiO₂, and less adsorption amount of water molecules; abrasive particles CTAB-ZrO₂ have better friction and wear performance, and the coated particles are spherical, the particles size distribution is more uniform, and the coating is dense. Therefore, it is better to choose abrasive particles CTAB-ZrO₂ in magnetic abrasive grinding.

Key words: adsorbent concentration effect isothermal equation multilayer adsorption magnetic abrasives grinding friction and wear perfor-mance

出版日期: 2021-09-25 发布日期: 2021-09-30

ZTFLH:

O613.6

基金资助: 国家自然科学基金(51165012)

作者简介: 张莲芝,博士研究生,研究方向为磁性复合材料的特种加工。以第一作者在国内外重要期刊发表文章6篇,申请发明专利3项。
吴张永,教授,主要研究方向为水基液压传动技术、电液数字控制技术,昆明理工大学机电工程学院功能流体应用与矿山机电工程研究所所长。主持及参与科研项目20余项,发表论文50余篇,获发明专利13项。

引用本文:

张莲芝, 吴张永, 王庭有, 朱启晨, 蔡晓明, 莫子勇. 纳米氧化锆多层吸附的模拟及实验研究[J]. 材料导报, 2021, 35(18): 18040-18046.
ZHANG Lianzhi, WU Zhangyong, WANG Tingyou, ZHU Qichen, CAI Xiaoming, MO Ziyong. Study on the Simulation and Experiment of Nano-Zirconium Oxide in Multilayer Adsorption. Materials Reports, 2021, 35(18): 18040-18046.

链接本文:

http://www.mater-rep.com/CN/10.11896/cldb.20060076 或 http://www.mater-rep.com/CN/Y2021/V35/I18/18040

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