• Laser & Optoelectronics Progress
  • Vol. 57, Issue 11, 111412 (2020)
Yayu Ding1, Yahui Su1、2、3、*, and Liang Chen1
Author Affiliations
  • 1School of Electrical Engineering and Automation, Anhui University, Hefei, Anhui, 230601, China
  • 2School of Electronics and Information Engineering, Anhui University, Hefei, Anhui, 230601, China
  • 3Key Laboratory of Intelligent Computing and Signal Processing of the Ministry of Education, Anhui University, Hefei, Anhui, 230009, China
  • show less
    DOI: 10.3788/LOP57.111412 Cite this Article Set citation alerts
    Yayu Ding, Yahui Su, Liang Chen. Experimentally Investigating Wettability and Fog Collection Characteristics of (Super) Hydrophobic/(Super) Hydrophilic Aluminum Membranes Processed by Nanosecond Laser[J]. Laser & Optoelectronics Progress, 2020, 57(11): 111412 Copy Citation Text show less

    Abstract

    Herein, (super) hydrophobic/(super) hydrophilic aluminum membranes were fabricated by nanosecond fiber laser processing combined with surfactant control. Further, the wettability and fog collection characteristics of the fabricated (super) hydrophobic/(super) hydrophilic aluminum membranes were studied. First, a microporous array was fabricated on 35-μm-thick aluminum foil using the nanosecond fiber laser drilling technology. Then, the bottom surface of the aluminum membrane was sprayed with Glaco coating reagent two-three times. Hydrophobic silica particles in the reagent adhered to the surface, thereby changing the wettability of the aluminum membrane surface. Finally, a (super) hydrophobic/(super) hydrophilic aluminum membrane was obtained using laser secondary scanning. The (super) hydrophobic/(super) hydrophilic aluminum membrane was examined for wettability, droplet penetration, and optimum fog collection aperture with varying pore sizes and the same through-hole quantity. Results showed that the pore size affected the wettability of aluminum membrane to water, infiltration time of water droplets, and function of fog collection in aluminum foil membranes with the same through-hole quantity. The optimal fog collection pore size of the synthesized (super) hydrophobic/(super) hydrophilic aluminum membrane was 108 μm, and its fog collection amount was as high as approximately 31.3 times the lowest fog collection amount.
    Yayu Ding, Yahui Su, Liang Chen. Experimentally Investigating Wettability and Fog Collection Characteristics of (Super) Hydrophobic/(Super) Hydrophilic Aluminum Membranes Processed by Nanosecond Laser[J]. Laser & Optoelectronics Progress, 2020, 57(11): 111412
    Download Citation