Superhydrophobic micro-nano structures on silicone rubber by nanosecond laser processing

Chen, Lie; Wang, Xing; Ping, Heng; Bennett, Peter; Zhou, Zheng; Yang, Qibiao; Perrie, Walter; Edwardson, Stuart; Dearden, Geoff; Liu, Dun

doi:10.1088/1361-6463/aae13d

Cited by 27 publications

(24 citation statements)

References 26 publications

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“…Chen et al. [ 76 ] modified silicone rubber via nanosecond laser technology. When the laser flux was 10 J cm −2 , the surface roughness of silicone rubber reached the maximum, and the contact angle and rolling angle with water were 160° and 3°, respectively.…”

Section: Fabrication Methodsmentioning

confidence: 99%

A Review on Fabrication Methods and Research Progress of Superhydrophobic Silicone Rubber Materials

Wang

Wen

et al. 2020

Adv Materials Inter

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Silicone rubber materials have excellent comprehensive properties and are widely used in outdoor insulation, aerospace, and other fields. Due to its low surface energy and the appearance of biomimetic superhydrophobic materials, silicone rubber has become one of the popular materials in the field of superhydrophobicity. Superhydrophobic silicone rubber materials play an irreplaceable role in a wide range of applications such as long‐distance high‐voltage power transmission and high‐speed rail transportation. In this paper, research on superhydrophobic materials, including typical fabrication methods, is summarized to provide an overview of the up‐to‐date research state and progress in detail.

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Section: Fabrication Methodsmentioning

confidence: 99%

A Review on Fabrication Methods and Research Progress of Superhydrophobic Silicone Rubber Materials

Wang

Wen

et al. 2020

Adv Materials Inter

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“…In our previous studies, a superhydrophobic silicone rubber surface by short pulse laser (nanosecond laser) processing was obtained and its anti-icing properties were also investigated. 27,28 The results show that the micro-nano structures formed by physical changes on the laser-ablated surface lead to an increased hydrophobicity and have certain advantages in improving its anti-icing performance. This article investigates various physical and chemical changes on the silicone rubber surface processed by a femtosecond laser and its time-dependent wettability changes.…”

Section: Introductionmentioning

confidence: 99%

Hydrophobic recovery of femtosecond laser processed silicone rubber insulator surfaces

Chen

Nie

et al. 2021

J of Applied Polymer Sci

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This article demonstrates the loss and recovery in hydrophobicity of silicone rubber insulator surface processed by a femtosecond laser. The two stages of the wettability conversion were investigated. First, a rough micro/nano structure was formed on the original hydrophobic sample surface processed by the femtosecond laser, and the water contact angle on the surface was reduced from 110 to a minimum of 35 . This hydrophilicity loss was due to the increase in the hydrophilic OH groups and the reduction of the hydrophobic CH 3 groups on the surfaces. Second, the roughened samples were stored in a natural ambient environment. Over a certain storage time, the surface hydrophobicity recovered gradually and evolved into a superhydrophobic state. It was found that the migration of low molecular weight cycle and/or linear siloxane oligomers resulted in the recovery of the hydrophobicity property.Coupled with the increase of surface roughness caused by laser irradiation, the further evolution of the hydrophobicity was promoted. Moreover, the higher temperature accelerates the recovery of the surface hydrophobicity. The research on the conversion mechanism of the wettability on the silicone rubber insulator surface processed by femtosecond laser is of great significance for improving its reliability in practical applications.

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“…3,[12][13][14][15][16][17] As a basic approach to produce surface micro/nanostructures, laser processing is a useful technique in preparing superhydrophobic surfaces with a wide range of materials. [18][19][20] Although previous researches have demonstrated that the wettability of the silicone rubber can be tuned by a femtosecond laser, 21,22 the reliable dynamic superhydrophobic stability still needs to be taken into consideration for the application associated with industrial and practical applications, such as high voltage transmission lines. That is, the generated micro/nanostructures have insufficient resistance to dynamic pressure, and the dynamic superhydrophobic stability of the silicone rubber needs to be improved urgently.…”

Section: Introductionmentioning

confidence: 99%

“…Recently, hydrophobic silicone rubbers have been fabricated using various methods, such as laser processing, surface coating, injection molding, and so on 3,12–17 . As a basic approach to produce surface micro/nanostructures, laser processing is a useful technique in preparing superhydrophobic surfaces with a wide range of materials 18–20 . Although previous researches have demonstrated that the wettability of the silicone rubber can be tuned by a femtosecond laser, 21,22 the reliable dynamic superhydrophobic stability still needs to be taken into consideration for the application associated with industrial and practical applications, such as high voltage transmission lines.…”

Section: Introductionmentioning

confidence: 99%

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

Xie

2020

J of Applied Polymer Sci

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Silicone rubbers with high dynamic superhydrophobic stability have an extensive application prospect. Applying direct laser etching technology, a fast and efficient method is proposed for the preparation of silicone rubber surfaces with hierarchical nanospheres and robust dynamic superhydrophobicity. A 4 μl water droplet on the laser modified silicone rubber surface exhibits a contact angle (CA) of 154 ± 3 and a roll-off angle (RA) of 5 ± 1 , there is a 65.6% increase in CA compared with the pristine silicon rubber. Moreover, the modified surface can stabilize its superhydrophobic state under a dynamic pressure of 1960.2 Pa. Interestingly, no significant change in the contacting time for the droplets with different impacting speed is found, which means that the stabilized contact time and robust dynamic superhydrophobicity are induced on the modified silicone rubber surface. The self-cleaning and antiicing properties on the modified surface can effectively reduce the damage caused by surface pollution, ice formation, and other natural factors when applied to power lines, sealing elements, and automotive.

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Superhydrophobic micro-nano structures on silicone rubber by nanosecond laser processing

Cited by 27 publications

References 26 publications

A Review on Fabrication Methods and Research Progress of Superhydrophobic Silicone Rubber Materials

A Review on Fabrication Methods and Research Progress of Superhydrophobic Silicone Rubber Materials

Hydrophobic recovery of femtosecond laser processed silicone rubber insulator surfaces

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

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