Zhang Zihan, Zhou Jiakang, Ren Yuqi, Li Weihan, Li Sheng, Chai Nianyao, Zeng Zhongle, Chen Xiangyu, Yue Yunfan, Zhou Ling, Cheng Yibing, Li Shuxin, Wang Xuewen
State Key Laboratory of Advanced Technology for Materials Synthesis and Processing, International School of Materials Science and Engineering, Wuhan University of Technology, Wuhan 430070, China.
Foshan Xianhu Laboratory of the Advanced Energy Science and Technology Guangdong Laboratory, Foshan 528216, China.
Nanomaterials (Basel). 2022 Aug 13;12(16):2782. doi: 10.3390/nano12162782.
Carbon fiber reinforced plastic (CFRP) is the main material of aircraft skin. Preparing superhydrophobic anti-icing/deicing surface on the CFRP is of great importance for aircraft flight safety. In this work, a variety of multi-scale micro-nano structures were imprinted on CFRP by femtosecond laser processing, and a transition from hydrophilic to superhydrophobic CFRP was realized. After being optimized by different geometries and laser conditions, the water contact angle, which is tested at 24.3 °C and 34% humidity, increased from 88 ± 2° (pristine) to 149 ± 3° (100 μm groove) and 153 ± 3° (80 μm grid). A further anti-icing test at -10 °C (measured on the cooling platform) and 28% humidity showed that the freezing time was increased from 78 ± 10 s (pristine) to 282 ± 25 s (80 μm grid). Most importantly, the tensile tests showed that the femtosecond laser processing method did not deteriorate the mechanical properties of CFRP. This work provides great significance for aircraft passive deicing technology.
碳纤维增强塑料（CFRP）是飞机蒙皮的主要材料。在CFRP上制备超疏水防冰/除冰表面对飞机飞行安全至关重要。在这项工作中，通过飞秒激光加工在CFRP上刻蚀出各种多尺度微纳结构，实现了CFRP从亲水性到超疏水性的转变。经不同几何形状和激光条件优化后，在24.3℃、湿度34%条件下测得的水接触角从88±2°（原始状态）增加到149±3°（100μm沟槽）和153±3°（80μm网格）。在-10℃（在冷却平台上测量）、湿度28%条件下进行的进一步防冰测试表明，结冰时间从78±10s（原始状态）增加到282±25s（80μm网格）。最重要的是，拉伸试验表明飞秒激光加工方法不会降低CFRP的力学性能。这项工作对飞机被动除冰技术具有重要意义。
