刘亚华,宋文卓,李文宗,詹海洋,王世许,肖炳忠,魏全茂,张珂柯,卢晨光.耐用光热超疏水涂层的防/除冰性能及其稳定性研究[J].表面技术,2025,54(2):191-201.
LIU Yahua,SONG Wenzhuo,LI Wenzong,ZHAN Haiyang,WANG Shixu,XIAO Bingzhong,WEI Quanmao,ZHANG Keke,LU Chenguang.Anti/de-icing Performance and Stability of Durable Photothermal Superhydrophobic Coatings[J].Surface Technology,2025,54(2):191-201 |
| 耐用光热超疏水涂层的防/除冰性能及其稳定性研究 |
| Anti/de-icing Performance and Stability of Durable Photothermal Superhydrophobic Coatings |
| 投稿时间：2024-03-17 修订日期：2024-07-03 |
| DOI：10.16490/j.cnki.issn.1001-3660.2025.02.016 |
| 中文关键词: 超疏水涂层 光热除冰/霜 抗结冰 耐磨性 聚硅氮烷 多壁碳纳米管 |
| 英文关键词:superhydrophobic coating photothermal de-icing/frosting anti-icing wear resistance polysilazane multi- walled carbon nanotubes |
| 基金项目:国家重点研发计划(2022YFB4602401);国家自然科学基金(52075071) |
| 作者 | 单位 |
| 刘亚华 | 大连理工大学，辽宁 大连 116024 |
| 宋文卓 | 大连理工大学，辽宁 大连 116024 |
| 李文宗 | 大连理工大学，辽宁 大连 116024 |
| 詹海洋 | 大连理工大学，辽宁 大连 116024 |
| 王世许 | 大连理工大学，辽宁 大连 116024 |
| 肖炳忠 | 大连理工大学，辽宁 大连 116024 |
| 魏全茂 | 大连理工大学，辽宁 大连 116024 |
| 张珂柯 | 大连理工大学，辽宁 大连 116024 |
| 卢晨光 | 大连理工大学，辽宁 大连 116024 |
|
| Author | Institution |
| LIU Yahua | Dalian University of Technology, Liaoning Dalian 116024, China |
| SONG Wenzhuo | Dalian University of Technology, Liaoning Dalian 116024, China |
| LI Wenzong | Dalian University of Technology, Liaoning Dalian 116024, China |
| ZHAN Haiyang | Dalian University of Technology, Liaoning Dalian 116024, China |
| WANG Shixu | Dalian University of Technology, Liaoning Dalian 116024, China |
| XIAO Bingzhong | Dalian University of Technology, Liaoning Dalian 116024, China |
| WEI Quanmao | Dalian University of Technology, Liaoning Dalian 116024, China |
| ZHANG Keke | Dalian University of Technology, Liaoning Dalian 116024, China |
| LU Chenguang | Dalian University of Technology, Liaoning Dalian 116024, China |
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| 中文摘要: |
| 目的 开发具有优异防/除冰性能和耐用性的光热超疏水涂层。方法 将聚硅氮烷(PSZ)和环氧树脂(EP)混合后作为成膜树脂，掺入疏水纳米SiO2颗粒以及多壁碳纳米管(MWCNT)，通过喷涂法制备光热超疏水涂层。综合考虑涂层的润湿性、光热能力以及基底黏附性优化其配方。采用接触角测量仪对涂层表面的润湿性进行表征;通过光热除冰/霜实验来测定涂层的除冰/霜性能，通过静态结冰/霜实验、低温表面液滴碰撞实验等测试涂层的防冰与防霜性能;通过线性摩擦实验、胶带剥离实验和热失重实验等测定涂层的机械稳定性。结果 涂层表面的接触角为(156±2)°，滚动角为(7±1)°，表现出优异的超疏水性;在光热除冰实验中，对于表面上冻结的水滴仅需43 s的模拟太阳光照射即可脱落;对于覆盖在表面的冰层，经历12 min的光照后完全从表面脱落;在光热除霜实验中，全覆盖的表面积霜在2 min的光照后完全融化;在静态结冰实验中，涂层表面液滴的冻结时间延迟了6倍;在−10 ℃的低温碰撞实验中，液滴撞击过冷表面后能完全弹起脱离表面;在防霜实验中，涂层表面能够大幅延迟结霜并减少其覆盖。此外，线性摩擦实验和胶带剥离实验表明，涂层具有良好的耐磨损性以及较高的基底附着力;热重曲线和高温加热实验表明，聚硅氮烷赋予了涂层良好的热稳定性，使涂层在300 ℃环境下烘烤1 h后仍可保持超疏水性。结论 制备的耐用光热超疏水涂层具有极佳的光热防/除冰性能以及机械稳定性，涂层在经历摩擦磨损后仍具有出色的抗结冰和光热转换能力，为实现节能环保的防/除冰应用提供了富有前景的解决方案。 |
| 英文摘要: |
| Icing and frosting are universal phenomena in low temperature environments, often causing safety hazards to infrastructure such as power and transportation and resulting in huge direct or indirect property losses. Superhydrophobic surfaces based on the lotus leaf effect have been extensively studied in recent decades as potential anti-icing materials. However, the anti-icing performance of superhydrophobic surfaces collapses due to the filling of the surface microstructure with condensate microdroplets in low temperature and high humidity environments. Moreover, the interlocking between ice and surface microstructure damages the surface easily during de-icing, which will further reduce its service life. Therefore, it is necessary to explore energy-saving de-icing/defrosting strategies without destroying the functionality of superhydrophobic surfaces, as well as improving the mechanical stability of superhydrophobic surfaces to promote long-lasting anti-icing applications. Here, the work aims to propose a superhydrophobic photothermal coating with excellent anti-icing performance and durability. The formulation of the coating was optimized by considering the wettability, photothermal ability and substrate adhesion. Polysilazane (PSZ) and epoxy resin (EP) were used as film-forming materials, and hydrophobic nano-SiO2 particles and multi-walled carbon nanotubes (MWCNT) were mixed in to prepare a photothermal superhydrophobic coating by spraying. The wettability of the coating surface was characterized with a contact angle meter. The de-icing/frosting performance of the coating was tested through photothermal de-icing/frosting experiments, and the anti-icing and anti-frosting performance of the coating was tested through static anti-icing/frosting experiments, low temperature surface droplet impact experiments, etc. The mechanical stability of the coating was measured through linear friction experiments, tape peeling experiments and thermal weight loss experiments. The results showed that the contact angle of the coating surface was (156±2)° and the rolling angle was (7±1)°, indicating excellent superhydrophobicity. In the photothermal de-icing experiment, the frozen water droplet on the surface fell off after only 43 s of simulated sunlight (1 kW/m2) exposure and the ice layer covering the surface completely fell off the surface after 12 min of exposure to sunlight. In the photothermal defrosting experiment, the fully covered surface frost completely melted after 2 min of sunlight exposure. In static anti-icing experiments, the freezing time of droplets on the coated surface was delayed six times compared to the bare aluminum surface. In the low temperature impact experiment at −10 ℃, the droplet was pinned and quickly frozen after contacting the supercooled bare aluminum surface. However, the droplets completely bounced off and detached from the surface after impacting the coating surface. In anti-frosting experiments, the coated surface was able to significantly delay frost formation and reduce its coverage. In addition, linear friction experiments and tape peeling experiments showed that the coating had good wear resistance and solid substrate adhesion. Thermogravimetric analysis and high temperature heating experiments showed that polysilazane gave the coating good thermal stability, allowing the coating to maintain superhydrophobicity after baking at 300 ℃ for 1 h. In summary, the durable superhydrophobic photothermal coating prepared in this work has excellent photothermal anti/de-icing performance and mechanical stability. The coating still exhibits excellent anti-icing and photothermal conversion capabilities after experiencing friction and wear. This provides a promising solution for energy-saving, environmentally friendly and durable anti-icing applications. |
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