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首页 > 过刊浏览>2024年第47卷第7期 >21-31. DOI:10.11835/j.issn.1000-582X.2022.123
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多尺度仿生超疏水结构的制备与性能表征
作者:
作者单位:

1.西南科技大学 制造过程测试技术教育部重点实验室，四川 绵阳 621010;2.河北工业大学 机械工程学院， 天津 300401;3.重庆大学 航空航天学院，重庆 400044

作者简介:

向露（1998—），女，硕士研究生，主要从事多尺度仿生超疏水结构的制备研究，(E-mail) 1320604415@qq.com。

通讯作者:

袁卫锋，男，教授，博士生导师，(E-mail)yuanweifeng@swust.edu.cn。

中图分类号:

TH145.9

基金项目:

国家自然科学基金资助项目（12072300）。


Fabrication and performance characterization of the multiscaled bionic superhydrophobic structure
Author:
Affiliation:

1.Key Laboratory of Testing Technology for Manufacturing Process, Ministry of Education, Southwest University of Science and Technology, Mianyang, Sichuan 621010, P. R. China;2.School of Mechanical Engineering, Hebei University of Technology, Tianjin 300401, P. R. China;3.College of Aerospace Engineering, Chongqing University, Chongqing 400044, P. R. China

Fund Project:

Supported by National Natural Science Foundation of China (12072300).

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    摘要:

    受冰岛野罂粟花苞绒毛的疏水特性启发，采用3D打印与化学修饰相结合的方法，制备了一种多尺度的超疏水结构，并利用扫描电子显微镜和微力测量仪分别对其进行了微观形貌和疏水性能表征。该结构在宏观尺度下呈现为物体表面上按照阵列分布的仿生柱杆，而柱杆表面黏附有碳纳米管团簇形成的微观尺度鳞片。因多尺度协同增强效应，被该结构覆盖的表面具有优异的超疏水性能，斥水力可达50.68 N/m2。与现有的表面疏水涂层等微观疏水结构的制备工艺相比，提出的方法经济、简单，多尺度结构抗破坏能力强，疏水功能稳定，便于工业化生产，可应用于液滴定向运移、流体减阻和水下气体交换等多个领域。

    Abstract:

    Inspired by the hydrophobic properties of the fluffs of Papaver nudicaule Linn, a multiscaled superhydrophobic structure was fabricated through a combination of 3D printing and chemical modification. The prepared structure was characterized at both micromorphological and hydrophobic levels by using scanning electron microscope and microforce instrumentation. At the macroscopic scale, the structure consists of biomimetic pillars arranged in an array on the surface, with carbon nanotube clusters adhering to the pillars to form microscopic scales. The multiscaled synergistic enhancement effect of this structure results in excellent superhydrophobicity, with a water repellency force reaching 50.68 N/m2. Compared to hydrophobic coatings and other existing methods for preparing microscopic hydrophobic structures, the proposed method is economical and straightforward. The multiscaled structure exhibits strong damage resistance and stable hydrophobicity, and is conducive to industrial production. As a result, it finds applications in various fields such as directional droplet migration, fluid drag reduction, and underwater gas exchange.

    图1 冰岛野罂粟花苞的疏水结构和性能Fig.1 Hydrophobic structure and properties of Papaver nudicaule Linn
    图2 多尺度仿生超疏水结构制备过程Fig.2 Preparation procedure for multiscaled bionic superhydrophobic structure
    图3 有机混合溶液的制备过程Fig.3 Preparation procedure for organic mixed solution
    图4 不同试件的SEM图Fig.4 SEM images of test samples
    图6 多尺度仿生超疏水结构的水滴运移能力Fig.6 Transportability of multiscaled bionic superhydrophobic structures
    图8 液滴在多尺度仿生超疏水结构表面的接触角Fig.8 Contact angle of droplet on the surface of multiscaled bionic superhydrophobic structure
    图9 微力测量仪Fig.9 Micro force measuring instrument
    图10 力与电容变化量之间的关系Fig.10 Relationship between force and capacitance change
    图11 疏水性表征Fig.11 Hydrophobic characterization
    图12 试件的受力分析Fig.12 Stress analysis of samples
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向露,黄楷焱,宁慧铭,李宗阳,袁卫锋.多尺度仿生超疏水结构的制备与性能表征[J].重庆大学学报,2024,47(7):21-31.

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  • 收稿日期:2022-05-23
  • 在线发布日期: 2024-08-15
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