Laser & Optoelectronics Progress, Volume. 59, Issue 7, 0714010(2022)
Rapid Transformation of Wettability on Surface of Laser Etched Red Copper
Aiming at the problem of short-term superhydrophilicity and long wettability transition period of laser etched metal surface, we optimized the laser etching parameters to construct micro/nano layered papillary structures on the surface of red copper, and manufactured the superhydrophilic samples. After being thermally oxidized for 3 h at high temperature under water vapor environment, the samples were annealed with ethanol for 15 min in a 150 ℃ tubular furnace. The water contact angle on the surface of the samples increased from (4.0±0.7)° before annealing to (150.7±0.6)° after annealing, and the sample surface changed rapidly from superhydrophilic to superhydrophobic, which greatly improved the wettability transformation efficiency.
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Zhixia Zheng, Wenfang Li, Dan Zhang, Yiqing Chao, Xuejiao Chen, Lihan Cai. Rapid Transformation of Wettability on Surface of Laser Etched Red Copper[J]. Laser & Optoelectronics Progress, 2022, 59(7): 0714010
Category: Lasers and Laser Optics
Received: Apr. 23, 2021
Accepted: Jun. 19, 2021
Published Online: Apr. 7, 2022
The Author Email: Zheng Zhixia (37927883@qq.com), Li Wenfang (1259900841@qq.com)