中国激光, 2020, 47 (10): 1003003, 网络出版: 2020-10-09 复制并引用该论文  被引通知

图 & 表

图 1. 经过纳秒激光钻孔后锌箔表面上形成的多级微纳结构。(a)纳秒激光加工系统示意图;(b)锌箔上表面的扫描电镜图像;(c)图1(b)的局部放大;(d)锌箔底面的扫描电镜图像;(e)图1(d)的局部放大

Fig. 1. Multi-level micro/nano structure formed on surface of zinc foil after nanosecond laser drilling. (a) Schematic of nanosecond laser machining system; (b) SEM image of top surface of zinc foil; (c) locally enlarged view of Fig. 1(b); (d) SEM image of bottom surface of zinc foil; (e) locally enlarged view of Fig. 1(d)

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图 2. 脉冲能量对锌箔表面形貌和表面润湿性的影响。(a)纳秒激光打孔形成的锥形孔的横截面图; (b)样品表面微孔直径与脉冲能量的关系;(c)水接触角随脉冲能量的变化; (d)气泡接触角随脉冲能量的变化

Fig. 2. Effect of pulse energy on surface morphology and wettability of zinc foil. (a) Cross-sectional view of tapered pore formed by nanosecond laser drilling; (b) diameter of micropore on sample surface versus pulse energy; (c) water contact angle versus laser energy; (d) bubble contact angle versus laser energy

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图 3. 化学成分对锌箔表面润湿性的影响。(a)原始锌箔的上表面水接触角;(b)激光打孔后的锌箔上表面的水接触角;(c)加热后的锌箔上表面的水接触角;(d)原始锌箔的上表面O1s峰的EDS结果;(e)激光打孔后的锌箔上表面O1s峰的EDS结果;(f)加热后的锌箔上表面O1s峰的EDS结果

Fig. 3. Effect of chemical composition on surface wettability of zinc foil. (a) Water contact angle on top surface of pristine zinc foil; (b) water contact angle on top surface of zinc foil after laser drilling; (c) water contact angle of heated zinc foil; (d) EDS result of O1s peak on top surface of pristine zinc foil; (e) EDS result of O1s peak on top surface of zinc foil after laser drilling; (f) EDS result of O1s peak on top surface of heated zinc foil

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图 4. 由锌箔上下表面的形貌差异导致的非对称润湿性。(a)上表面和(b)下表面的微孔边缘形貌; 加热改性后锌箔上表面的(c)水接触角和(d)气泡接触角; 加热改性后锌箔底面的(e)水接触角和(f)气泡接触角

Fig. 4. Asymmetric wettability caused by morphology difference between upper and lower surfaces of zinc foil. Morphologies of microporous edge on (a) top and (b) bottom surfaces; (c) water contact angle and (d) bubble contact angle on top surface of heated zinc foil; (e) water contact angle and (f) bubble contact angle on bottom surface of heated zinc foil

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图 5. 气泡在双面神锌箔上的动态行为分析。(a)气泡从亲水表面到超疏水表面的实时影像;(b)气泡从超疏水表面到亲水面的实时影像图;(c)锌箔上的气泡通过时间与脉冲能量的关系;(d)超疏水面朝下放置时和(e)超疏水面朝上放置时加热后锌箔上的气泡单向传输机理示意图

Fig. 5. Analysis of dynamic behavior of bubbles on Janus zinc foil. (a) Intraoperative imaging for bubbles ejected from hydrophilic surface to superhydrophobic one; (b) intraoperative imaging for bubbles ejected from superhydrophobic surface to hydrophilic one; (c) laser energy with respect to passing time of bubbles on zinc foil; schematic of unidirectional transport mechanism of bubbles on heated zinc foil when superhydrophobic surface is placed (d) downwards and (e) upwards

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肖轶, 孟东, 徐呈艺, 张瑞华, 姚燕生, 吴思竹, 姚成立. 双面神亲/疏水锌箔制备及其气泡运输特性[J]. 中国激光, 2020, 47(10): 1003003. Xiao Yi, Meng Dong, Xu Chengyi, Zhang Ruihua, Yao Yansheng, Wu Sizhu, Yao Chengli. Preparation of Janus Zinc Foil and Its Bubble Transport Characteristic[J]. Chinese Journal of Lasers, 2020, 47(10): 1003003.