Fabrication of Superhydrophobic Surfaces from Laser-Induced Graphene and Their Photothermally Driven Properties DOI Open Access
Yue Zhao, Yonghui Zhang, Yang Chen

et al.

Materials, Journal Year: 2025, Volume and Issue: 18(8), P. 1880 - 1880

Published: April 21, 2025

Conventional LIG preparation mostly relies on the ablation process of a CO2 laser polyimide (PI) substrate but is limited by sensitivity parameters, which prone to PI film deformation, non-uniformity process, or surface breakage problems. In this study, we present new method fabricate superhydrophobic laser-induced graphene (SH-LIG) surfaces immobilizing copper sheet, enables uniform processing (single pass etching) over wider range microsecond parameters (10.5–19.5 W). Subsequently, SH-LIG was obtained vacuum-assisted immersion in stearic acid, resulting water contact angle greater than 150°, roll stabilized at 6°, and hydrophobic stability high temperature 90 °C. Analysis Raman spectroscopy (Raman), X-ray photoelectron (XPS) scanning electron microscopy (SEM) showed that fabricated optimal power (19.5 W) had more developed C sp2 network (I2D/IG ≈ 0.5) pore structure, significantly improved photothermal conversion efficiency (up 252 °C air 180 water). On basis, simple micro-driver based designed. Experiments maximum velocity boat can reach an adjustable propulsion 45.6 mm/s (related intensity driving light), 132% higher boat. This work provides insights into high-quality their application photothermally driven micro actuators, highlighting synergies between structural optimization, engineering, performance.

Language: Английский

Lattice Boltzmann modeling of droplet impact on moving superhydrophobic wall DOI
Guoxing Hou, Linlin Fei, Chuandong Lin

et al.

Physics of Fluids, Journal Year: 2025, Volume and Issue: 37(4)

Published: April 1, 2025

In this paper, the non-orthogonal multiple-relaxation-time lattice Boltzmann method incorporating contact angle hysteresis is used to study droplets impacting moving superhydrophobic walls. It found that time depends on wall velocity and independent of Weber number, while horizontal displacement maximum spreading length are controlled by both number velocity. Moreover, based evolution kinetic energy, divided into time, retraction separation time. The velocity, upon addition, tangential force normal but number. These findings offer a deep insight dynamic characteristics droplet impact

Language: Английский

Citations

1
Anti-Adhesion Superhydrophobic High-Frequency Electrotome DOI Creative Commons

Haodong Fu,

Yuheng Li, Jiyu Liu

et al.

Applied Sciences, Journal Year: 2025, Volume and Issue: 15(5), P. 2363 - 2363

Published: Feb. 22, 2025

High-frequency electrotome (HFE) encompassing rapid cutting speed, effective hemostasis, and simple operation plays a critical role in the electrosurgical field. However, blood tissue adhesion on HFE can cause secondary tearing bleeding. Constrained by of conventional HFEs during surgical procedure, aside from prolonged time, tear bleeding may occur. Available methods have been proposed to alleviate these problems, including additional devices, coating methods, surface patterning. practical applications existing with their high cost, low conductivity, instability remain challenge. To solve challenges, we facile eco-friendly superhydrophobic high-frequency (SH-HFE) based patterning, which has anti-adhesion anti-adhesion. The mechanism contributing superhydrophobicity was investigated scanning electron microscopy, X-ray photoelectron spectroscopy, Fourier-transform infrared spectroscopy. experiments were conducted verify effectiveness SH-HFE patterning applications. Compared HFEs, reduced 89.7% 94.8%, respectively, while still maintaining excellent conductivity. would provide significant benefits

Language: Английский

Citations

0
Laser machined gradient grooved microporous layer for better water management at high relative humidity in PEMFC DOI
Ding Lan, Shusong Zan, Zhirong Liao

et al.

International Journal of Hydrogen Energy, Journal Year: 2025, Volume and Issue: 113, P. 305 - 311

Published: March 1, 2025

Language: Английский

Citations

0
Prediction Model of Farmland Water Conservancy Project Cost Index Based on PCA–DBO–SVR DOI Open Access

X.-Rong Li,

Kun Yeun Han, Wenhe Liu

et al.

Sustainability, Journal Year: 2025, Volume and Issue: 17(6), P. 2702 - 2702

Published: March 18, 2025

With the gradual cessation of budget quota standards and emphasis on market-based pricing, accurately predicting project investments has become a critical issue in construction management. This study focuses cost indicator prediction for irrigation drainage projects to address absence farmland water conservancy achieve accurate efficient investment prediction. Engineering characteristics affecting indicators were comprehensively analyzed, principal component analysis (PCA) was employed identify key influencing factors. A model proposed based support vector regression (SVR) optimized using dung beetle optimizer (DBO) algorithm. The DBO algorithm SVR hyperparameters, resolving issues poor generalization long times. Validation 2024 data from Liaoning Province showed that PCA–DBO–SVR achieved superior performance. For electromechanical well projects, root mean square error (RMSE) 1.116 million CNY, absolute (MAE) 0.910 percentage (MAPE) 3.261%, R2 reached 0.962. ditch 0.500 MAE 0.281 MAPE 3.732%, 0.923. outperformed BP, SVR, PCA–SVR models all evaluations, demonstrating higher accuracy better capability. provides theoretical developing offers valuable insights dynamically adjusting national improving fund

Language: Английский

Citations

0
Fabrication of Superhydrophobic Ultra-Fine Brass Wire by Laser Processing DOI Open Access
Jing Sun,

Hao Huang,

Jiajun Ji

et al.

Materials, Journal Year: 2025, Volume and Issue: 18(7), P. 1420 - 1420

Published: March 23, 2025

Superhydrophobic metal wires have shown great application prospects in oil–water separation, anti-corrosion, anti-icing, and other fields due to their excellent water repellency. However, how fabricate a superhydrophobic surface on ultra-fine wire remains challenge. Here, we proposed method using laser processing efficiently brass wire. Firstly, analyzed the mechanism of curved surfaces designed controllable angle rotation fixture avoid machining error caused by secondary positioning process. Then, investigated influences power, scanning speed, times morphology wettability The optimal parameters were obtained: power 6 W, speed 500 mm/s, time 1. After low energy modification, contact roughness Sa 156° 1.107 μm, respectively. This work is expected enrich theory technology for fabricating

Language: Английский

Citations

0
Surface quality in ultrasonic-electrolytic internal grinding of GCr15 steel DOI
Hongyin Zhang,

Feng Jiao,

X Lian

et al.

International Journal of Mechanical Sciences, Journal Year: 2025, Volume and Issue: unknown, P. 110188 - 110188

Published: March 1, 2025

Language: Английский

Citations

0
Integrated emulsion separation and fog collection with functionalized Janus wood membrane for water scarcity solutions DOI Creative Commons
Kaiwen Chen,

Jianyi Zhu,

Cheng Hao

et al.

npj Clean Water, Journal Year: 2025, Volume and Issue: 8(1)

Published: April 4, 2025

Language: Английский

Citations

0
Mechanism of surface hardness enhancement of aluminum alloy 2024-T3 by laser-induced plasma electrolyte jet machining DOI

Mingxin Yu,

Ce Zhang, Li Dong

et al.

Surface and Coatings Technology, Journal Year: 2025, Volume and Issue: 507, P. 132141 - 132141

Published: April 14, 2025

Language: Английский

Citations

0
Multi-response controllable microstructured superhydrophobic surfaces for full-process dynamic anti-icing and de-icing DOI
Yubo Wang,

Yiqing Xue,

Yinfeng Wang

et al.

Composites Science and Technology, Journal Year: 2025, Volume and Issue: unknown, P. 111183 - 111183

Published: April 1, 2025

Language: Английский

Citations

0
Fabrication of Superhydrophobic Surfaces from Laser-Induced Graphene and Their Photothermally Driven Properties DOI Open Access
Yue Zhao, Yonghui Zhang, Yang Chen

et al.

Materials, Journal Year: 2025, Volume and Issue: 18(8), P. 1880 - 1880

Published: April 21, 2025

Conventional LIG preparation mostly relies on the ablation process of a CO2 laser polyimide (PI) substrate but is limited by sensitivity parameters, which prone to PI film deformation, non-uniformity process, or surface breakage problems. In this study, we present new method fabricate superhydrophobic laser-induced graphene (SH-LIG) surfaces immobilizing copper sheet, enables uniform processing (single pass etching) over wider range microsecond parameters (10.5–19.5 W). Subsequently, SH-LIG was obtained vacuum-assisted immersion in stearic acid, resulting water contact angle greater than 150°, roll stabilized at 6°, and hydrophobic stability high temperature 90 °C. Analysis Raman spectroscopy (Raman), X-ray photoelectron (XPS) scanning electron microscopy (SEM) showed that fabricated optimal power (19.5 W) had more developed C sp2 network (I2D/IG ≈ 0.5) pore structure, significantly improved photothermal conversion efficiency (up 252 °C air 180 water). On basis, simple micro-driver based designed. Experiments maximum velocity boat can reach an adjustable propulsion 45.6 mm/s (related intensity driving light), 132% higher boat. This work provides insights into high-quality their application photothermally driven micro actuators, highlighting synergies between structural optimization, engineering, performance.

Language: Английский

Citations

0