Direct laser etching of hierarchical nanospheres on silicon rubber surface with robust dynamic superhydrophobic stability

Xie, Heng; Xu, Wanhai; Wu, Ting

doi:10.1002/app.49760

Cited by 15 publications

(9 citation statements)

References 31 publications

(51 reference statements)

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“…The resulting surface exhibited excellent superhydrophobicity, with a water contact angle as high as 170°. Xie et al [ 17 ] produced hierarchical nanospheres on a silicone rubber surface using direct laser etching. The resulted surface exhibited a contact angle of 154 ± 3° and maintained its superhydrophobic state under a dynamic pressure of 1960.2 Pa.…”

Section: Introductionmentioning

confidence: 99%

Constructing Superhydrophobic Surface on Copper Substrate with Dealloying-Forming and Solution-Immersion Method

Sun

Wang

2022

Materials

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In this study, a superhydrophobic surface was constructed on a copper substrate through dealloying-forming and solution-immersion methods. The dealloying process for nanostructures on a copper surface involved the electrodeposition of zinc atoms, and the thermal alloying and chemical dealloying of zinc atoms. Then, a dealloyed copper surface was subsequently modified with low-surface-energy copper stearate to produce a superhydrophobic surface. Scanning electron microscopy, X-ray diffractometry, and Fourier transform infrared spectrometry were employed to characterize the morphological features and composition components of the surface in the fabrication process. The static contact angles of the copper surfaces were compared and evaluated based on various fabrication parameters, including electric current density, corrosive solution concentration, and nanostructures. The results indicated that a leaf-like copper stearate could be constructed through immersing a dealloyed copper plate into a 0.005 mol/L ethanol solution of stearic acid for 5 min. Nanostructures provided more attachment areas on the copper surface to facilitate the formation of copper stearate. The resulting as-prepared surface presented excellent superhydrophobic properties with a contact angle of over 156.5°, and showed the potential properties of non-sticking, self-cleaning, anti-corrosion, and stability. This study provides an efficient approach to fabricate superhydrophobic surfaces for engineering copper metals.

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Section: Introductionmentioning

confidence: 99%

Constructing Superhydrophobic Surface on Copper Substrate with Dealloying-Forming and Solution-Immersion Method

Sun

Wang

2022

Materials

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“…Therefore, silicone rubber (MVQ) was selected as the test material due to its hydrophobicity in the original form as well as its characteristics (resistance to selected groups of chemical substances: alcohols, thinned acids or bases; physiological harmlessness) [ 51 , 52 , 53 ]. In addition, the choice was determined by the available literature findings on the possibility to improve the hydrophobicity of silicone rubber through chemical and physical modification [ 30 , 31 , 33 ].…”

Section: Discussionmentioning

confidence: 99%

“…Wang et al modified poly(methyl methacrylate) (PMMA) with a femtosecond laser (ti = 150 fs) at 775 nm wavelength, reaching the highest contact angle value of 125° [ 32 ]. Laser modification of a silicone rubber surface with a 1064 nm laser beam [ 33 ] rendered a hierarchic structure composed of densely packed nanospheres. The contact angle of the treated surface increased to 154°.…”

Section: Introductionmentioning

confidence: 99%

Enhanced Hydrofobicity of Polymers for Personal Protective Equipment Achieved by Chemical and Physical Modification

et al. 2021

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The article presents significant results in research on creating superhydrophobic properties of materials which can be used as an interesting material for use in self-cleaning polymer protective gloves and similar applications where the superhydrophobicity plays a significant role. In this work the influence of laser surface modification of MVQ silicone rubber was investigated. The research was conducted using a nanosecond-pulsed laser at 1060 nm wavelength. After a process of laser ablation, the surface condition was examined using a SEM microscope and infrared spectroscopy. During the tests, the contact angle was checked both before and after the laser modification of samples pre-geometrised in the process of their production. The test results presented in the paper indicate that the chemical and physical modifications contribute to the change in the MVQ silicone rubber contact angle. A significant increase (by more than 30°) in the contact angle to 138° was observed. It was confirmed that surface geometrisation is not the only factor contributing to an increase in the contact angle of the analyzed material; other factors include a change in laser texturing parameters, such as mean beam power, pulse duration, scanning speed and pulse repetition frequency.

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“…There are two basic preparation methods of silicone rubber superhydrophobic coating: 1) modifying low surface energy materials on the surface with micro nano rough structure; 2) micro nano rough structures are constructed on the surface of materials with low surface energy. Based on these two basic principles, a variety of preparation methods of silicone rubber superhydrophobic coatings, such as etching method [27][28][29][30][31][32][33], template method [34][35][36], spray-impregnation method [37][38][39][40], deposition method [41][42][43], phase separation method [21,44], layer by layer assembly method [45][46], sol-gel method [47][48][49][50], etc. Each preparation method also has its own unique characteristics and application scenarios, as shown in Table 1.…”

Section: Preparation Process and Methodsmentioning

confidence: 99%

Research progress of superhydrophobic coatings based on silicone rubber surface

Xie

Zhao

Shi

2022

J. Phys.: Conf. Ser.

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Silicone rubber has excellent insulation properties such as good hydrophobic mobility and anti pollution flashover performance. It plays an important role in the power system and provides an important guarantee for the reliability of power supply. However, due to the erosion of various harsh environments, especially in wet environments such as rain and snow, a large amount of dirt and water are easily attached to the surface of insulating parts. It not only reduces its surface hydrophobicity and hydrophobic mobility, but also greatly shortens its service life. There are even serious leakage current problems. Especially in the low temperature environment, a lot of snow and flashover will occur at the accessories of the insulation parts. In order to solve this problem, super hydrophobic self-cleaning coating based on silicone rubber surface came into being. The preparation principle and model of superhydrophobic self-cleaning coating on silicone rubber surface are reviewed in this paper. By comparing different preparation methods, the advantages, disadvantages and application prospects are analyzed, and the existing problems and challenges are put forward according to the existing preparation technologies, so as to lay a theoretical foundation for preparing self-cleaning coatings with excellent performance in the future.

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Direct laser etching of hierarchical nanospheres on silicon rubber surface with robust dynamic superhydrophobic stability

Cited by 15 publications

References 31 publications

Constructing Superhydrophobic Surface on Copper Substrate with Dealloying-Forming and Solution-Immersion Method

Constructing Superhydrophobic Surface on Copper Substrate with Dealloying-Forming and Solution-Immersion Method

Enhanced Hydrofobicity of Polymers for Personal Protective Equipment Achieved by Chemical and Physical Modification

Research progress of superhydrophobic coatings based on silicone rubber surface

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