Experimentally Investigating Wettability and Fog Collection Characteristics of (Super) Hydrophobic/(Super) Hydrophilic Aluminum Membranes Processed by Nanosecond Laser

Yayu Ding; Yahui Su; Liang Chen

doi:10.3788/LOP57.111412

Laser & Optoelectronics Progress, Volume. 57, Issue 11, 111412(2020)

Experimentally Investigating Wettability and Fog Collection Characteristics of (Super) Hydrophobic/(Super) Hydrophilic Aluminum Membranes Processed by Nanosecond Laser

Yayu Ding¹, Yahui Su^1,2,3、*, 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

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Figures & Tables(13)

Fig. 1. Microporous morphology image

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Fig. 2. Wettability of top surface and bottom surface of aluminum foil membrane with the same through-hole quantity and different pore sizes to water

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Fig. 3. Preparation process of (super) hydrophobic/(super) hydrophilic aluminum foil membrane

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Fig. 4. Wettability to water of the bottom surface of the aluminum foil membrane after secondary scanning

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Fig. 5. Dynamic contact angle measurement to water on the top surface of the (super) hydrophobic/(super) hydrophilic membrane

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Fig. 6. Dynamic process of water droplets on the bottom surface of (super) hydrophobic/ (super) hydrophilic membrane

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Fig. 7. Measurement of wettability contact angle to water on the top surface of the (super) hydrophobic/(super) hydrophilic membranes with different micro-pore diameters

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Fig. 8. Spreading time of water droplets on the bottom surface of the (super) hydrophobic/(super) hydrophilic membrane

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Fig. 9. Infiltration time of water droplets on the (super) hydrophobic/(super) hydrophilic membrane

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Fig. 10. Penetration time of 5 droplets on the (super) hydrophobic/(super) hydrophilic membrane

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Fig. 11. Measurement of fog collection in (super) hydrophobic /(super) hydrophilic membrane

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Table 1. Experimental processing parameters
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Table 1. Experimental processing parameters
Arraysize 100×100 62×62 45×45 37×37 32×32 26×26 24×24
Diameter d /μm 28.6 45.8 63.5 76.6 90.5 108.0 120.5

Table 2. Contact angle to water of the top surface of the (super) hydrophobic/(super) hydrophilic membrane
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Table 2. Contact angle to water of the top surface of the (super) hydrophobic/(super) hydrophilic membrane
Diameter /μm 28.6 45.8 63.5 76.6 90.5 108.0
Contact angle /(°) 163.5 159.0 154.1 157.2 150.3 137.0

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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

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