飞秒激光-化学混合制备多基底超疏水表面

Femtosecond laser-chemical hybrid processing for achieving substrate-independent superhydrophobic surfaces

翁伟轩 ¹邓钦文 ¹杨鹏宇 ¹银恺²

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作者信息

1. Hunan Key Laboratory of Nanophotonics and Devices,School of Physics,Central South University,Changsha 410083,China
2. Hunan Key Laboratory of Nanophotonics and Devices,School of Physics,Central South University,Changsha 410083,China;State Key Laboratory of Precision Manufacturing for Extreme Service Performance,College of Mechanical and Electrical Engineering,Central South University,Changsha 410083,China;State Key Laboratory of Intelligent Manufacturing Equipment and Technology,Huazhong University of Science and Technology,Wuhan 430000,China
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摘要

超疏水表面因具有多种功能和广泛的应用引起了人们极大的兴趣.目前制备超疏水表面的方法大多只适用于一种或几种特定的基底材料,具有依赖基底的缺点.本文提出了一种基于飞秒激光-化学混合加工制备与基底无关的超疏水表面的方法.通过飞秒激光直接写入技术在基底上构建出微/纳米结构,然后用硬脂酸改性.硬脂酸涂覆激光处理后的样品(LTx-SA,x表示不同的样品)表面具有优异的超疏水和自清洁性能.此外,值得注意的是,将基底从20℃加热到100℃,或清洗基板10次,或将基板暴露在空气中60 d后,LTx-SA表面仍然保持稳定的超疏水特性.这项工作为制备与基底无关的超疏水表面提供了一种有效而简单的策略.

Abstract

Superhydrophobic surfaces have attracted considerable interest due to their various functions and wide applications.Most of the existing methods for preparing superhydrophobic surfaces are only applicable to one or several specific substrate materials,which have the disadvantage of substrate-dependent.Here,an approach for the fabrication of substrate-independent superhydrophobic surfaces based on femtosecond laser-chemical hybrid processing is proposed.Micro/nanostructures are constructed on substrates via femtosecond laser direct writing technology,followed by modification with stearic acid.The laser-treated samples coated with stearic acid(LTx-SA,x presents different samples)surfaces have excellent superhydrophobic and self-cleaning properties.Moreover,it is worth noting that the LTx-SA surfaces remain stable superhydrophobicity after heating substrate from 20℃ to 100℃,washing substrate 10 times,and exposing substrate to air for 60 days.This work provides an efficient and facile strategy for achieving substrate-independent superhydrophobic surfaces.

关键词

飞秒激光/硬脂酸/多基底/超疏水表面

Key words

femtosecond laser/stearic acid/substrate-independent/superhydrophobic surface

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基金项目

National Key R&D Program of China(2023YFB4604200)

National Natural Science Foundation of China(52222513)

National Natural Science Foundation of China(52075557)

Natural Science Foundation of Hunan Province,China(2021JJ20067)

Science and Technology Innovation Program of Hunan Province,China(2021RC3011)

Central South University Innovation-Driven Research Programme,China(2023CXQD019)

State Key Laboratory of Precision Manufacturing for Extreme Service Performance,Central South University,China(ZZYJKT2023-12)

State Key Laboratory of Intelligent Manufacturing Equipment and Technology,Huazhong University of Science and Technology,Chi(IMETKF2024018)

出版年

2024

中南大学学报(英文版)

中南大学

中南大学学报(英文版)

CSTPCDCSCDEI

影响因子：0.47

ISSN：2095-2899

参考文献量4

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