高等学校化学学报

高等学校化学学报

• 研究论文 • 上一篇    

SiO2/PMMA超疏水透明复合涂层的制备及性能研究

聂川淇1,2，董富垚2，郭子薇2，程龙2，杨乃亮3,4，刘克松2,5，于存明2，江雷6   

  1. 1. 北京航空航天大学沈元学院

    2. 北京航空航天大学化学学院

    3. 中国科学院过程工程研究所生物药制备与递送全国重点实验室

    4. 中国科学院大学

    5. 北京服装学院材料设计与工程学院 6. 中国科学技术大学苏州高等研究院

  • 收稿日期:2025-11-12 修回日期:2025-11-28 出版日期:2025-12-03 发布日期:2025-12-03
  • 通讯作者: 杨乃亮 E-mail:nlyang@ipe.ac.cn
  • 基金资助:
    国家自然科学基金（批准号：22575010, 22175011, 52472293, 92163209），北京市自然基金（JQ22004），海水提铀项目(批准号：HNKF202216 (36))资助

Study of SiO2/PMMA superhydrophobic transparent composite coatings

Nie Chuanqi1,2, Dong Fuyao2, Guo Ziwei2, Cheng Long2, Yang Nailiang3,4, Liu Kesong2,5, Yu Cunming2, Jiang Lei6   

  1. 1. School of Shenyuan, Beihang University

    2. School of Chemistry, Beihang University

    3. State Key Laboratory of Biopharmaceutical Preparation and Delivery, Institute of Process Engineering, Chinese Academy of Sciences

    4. University of Chinese Academy of Sciences

    5. School of Materials Design & Engineering, Beijing Institute of fashion technology 6. Suzhou Institute for Advanced Research, University of Science and Technology of China

  • Received:2025-11-12 Revised:2025-11-28 Online:2025-12-03 Published:2025-12-03
  • Contact: Yang Nailiang E-mail:nlyang@ipe.ac.cn
  • Supported by:
    Supported by the National Natural Science Foundation of China (Nos. 22575010, 22175011, 52472293，92163209), Beijing Natural Science Foundation (JQ22004) and the Project of Uranium Extraction from Seawater (Grant No. HNKF202216 (36))

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摘要： 本研究采用浸渍涂覆工艺，通过调控SiO2纳米粒子浓度（0-10.00 g/L）、PMMA浓度及二氯甲烷（CH2Cl2）溶剂配比，制备出高性能SiO2/PMMA超疏水透明复合涂层。利用接触角测量仪与紫外可见分光光度计系统表征样品，结果表明：当SiO2纳米粒子浓度为6.25 g/L时，涂层超疏水性能与透明性实现最优平衡，静态接触角达160.8°±1.1°，550 nm波长透光率超90%。实验表征与机理分析显示，该浓度下纳米颗粒构建的微纳分级结构与聚合物基体形成协同效应，即既满足超疏水Cassie-Baxter态的表面粗糙度需求，又规避了过量颗粒引发的米氏散射，保持超疏水高透明性。本研究具有原料易得、工艺简便、适用性广等特点，其所制备的超疏水透明涂层展现出优异自清洁性能，在光学器件表面防护及光伏组件自清洁领域具有广阔应用潜力。

关键词: 超疏水, 透明, SiO2/PMMA复合涂层, 自清洁

Abstract: Through dip-coating technology, a series of composite coatings were fabricated by adjusting the concentration parameters of nano-SiO2 particles (0-10.0 g/L), PMMA, and dichloromethane (CH2Cl2) solvent. Systematic characterization using the contact angle measurements and the UV-Vis spectrophotometry revealed that the material achieved optimal performance balance of superhydrophobicity and transparency at a nanoparticle concentration of 6.25 g/L, exhibiting a static contact angle of 160.8°±1.1°and a transparency exceeding 90% at 550 nm wavelength. Mechanistic analysis revealed that the hierarchical micro-nano structures formed by nanoparticles at this concentration synergistically interacted with the polymer matrix, concurrently generating the surface roughness necessary for the superhydrophobic Cassie-Baxter state while preventing Mie scattering effects to preserve the high transparency typically compromised by excessive particles. This research highlights advantages such as the availability of raw materials, straightforward processing, and low manufacturing costs, demonstrating promising self-cleaning potential and broad application prospects in the protection of optical device surfaces and the self-cleaning of photovoltaic modules.

Key words: Superhydrophobicity, Transparency; SiO2/PMMA composite coating, Self-cleaning

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