可粘贴超疏水薄膜的制备

doi:10.7503/cjcu20180600

高等学校化学学报 ›› 2019, Vol. 40 ›› Issue (3): 560.doi: 10.7503/cjcu20180600

可粘贴超疏水薄膜的制备

马浩翔¹, 来华¹, 张恩爽³, 吕通³, 成中军²(), 刘宇艳¹()

1. 哈尔滨工业大学化工与化学学院, 新能源转换与储存关键材料技术工业和信息化部重点实验室
2. 基础与交叉科学研究院, 哈尔滨 150001
3. 航天特种材料及工艺技术研究所, 北京 100074

收稿日期:2019-08-30 出版日期:2019-11-20 发布日期:2018-11-20
作者简介:
联系人简介: 刘宇艳, 女, 博士, 教授, 主要从事形状记忆聚合物研究. E-mail: liuyy@hit.edu.cn;成中军, 男, 博士, 副研究员, 主要从事表面浸润性研究. E-mail: chengzhongjun@iccas.ac.cn
基金资助:
国家自然科学基金(批准号: 51573035, 21674030)资助.

Preparation of Bonded Super-hydrophobic Thin Film^†

MA Haoxiang¹, LAI Hua¹, ZHANG Enshuang³, LÜ Tong³, CHENG Zhongjun^2,^*(), LIU Yuyan^1,^*()

1. Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage,Ministry of Industry and Information Technology, School of Chemistry and Chemical Engineering
2. Academy of Fundamental and Interdisciplinary Sciences, Harbin Institute of Technology, Harbin 150001, China
3. Aerospace Institute of Advanced Materials & Processing Technology, Beijing 100074, China;

Received:2019-08-30 Online:2019-11-20 Published:2018-11-20
Contact: CHENG Zhongjun,LIU Yuyan E-mail:chengzhongjun@iccas.ac.cn;liuyy@hit.edu.cn
Supported by:
† Supported by National Natural Science Foundation of China(Nos.51573035, 21674030).

摘要/Abstract

摘要：

通过聚二甲基硅氧烷(PDMS)与碳纤维织物复合, 采用模板法在PDMS聚合物表面构筑微阵列结构, 制备了一种具有可重复粘贴性的超疏水薄膜. 研究结果表明, 该薄膜微结构表面的接触角为154°, 滚动角为14°, 具有低黏附的超疏水特性. 而PDMS与碳纤维织物的紧密结合, 赋予了超疏水薄膜较高的黏接力和力学性能, 断裂强度达到116.96 MPa. 所制备的超疏水薄膜可粘贴于多种材料表面, 同时经过30 d的长时间粘贴以及50次的循环粘贴后, 该薄膜依然保持着较高的黏附性能及超疏水特征, 表明超疏水薄膜具有良好的力学稳定性及耐久性, 满足长时间可重复使用的要求, 可应用于对破损超疏水涂层的快速、大面积粘贴修复.

关键词: 可粘贴超疏水薄膜, 表面微结构, 黏附性, 修复

Abstract:

By combining polydimethylsiloxane(PDMS) and carbon fabric, a superhydrophobic film with repeated adhesion performance was fabricated by the introduction of microarray structure on the PDMS polymer surface with a template method. The results show that the contact angle and rolling angle on the microstructural surface of the thin film are 154° and 14°, respectively, having low adhesion superhydrophobicity performance. The close combination of PDMS and carbon fiber fabric can endow the superhydrophobic film with higher adhesion performance and mechanical property. The breaking strength reaches 116.96 MPa. The as-prepared superhydrophobic film can be adhered on different materials. After long time adhesion of 30 d and repeated adhesion of 50 times, the as-prepared film still maintains high adhesion and superhydrophobic properties, which shows that the superhydrophobic film has good mechanical stability and durability and can meet the requirements of reusability for a long time. It can be used to repair the large-area damaged super-hydrophobic coating quickly and efficiently.

Key words: Adhesive superhydrophobic thin film, Surface micro-structure, Adhesion, Repair

中图分类号:

O631

TrendMD:

马浩翔, 来华, 张恩爽, 吕通, 成中军, 刘宇艳. 可粘贴超疏水薄膜的制备. 高等学校化学学报, 2019, 40(3): 560.

MA Haoxiang,LAI Hua,ZHANG Enshuang,LÜ Tong,CHENG Zhongjun,LIU Yuyan. Preparation of Bonded Super-hydrophobic Thin Film^†. Chem. J. Chinese Universities, 2019, 40(3): 560.

图/表 6

Scheme 1 Preparation process of the film(A) PDMS transfer template; (B) PDMS/carbon fiber film; (C) surface microstructure of the PDMS/carbon fiber film.

Fig.1 SEM images and contact angle(CA) of the film(A) The pillar structures on the upper surface of the film; (B) magnified image of one pillar; (C) smooth structure on the lower surface of the film; (D) cross-sectional view of the film; (E) magnified image of pillar arrays; (F) magnified image of the fibers; (G, H) shapes of a water droplet standing and rolling on the surface, respectively.

Fig.2 Stress-strain curves of pure PDMS film(A) and PDMS/carbon fiber film(B)

Fig.3 Optical photos of the superhydrophobic films bonded to different substrates

Fig.4 Adhesive forces of the film(A) Adhesive force curves for the film bonding to glass substrate; (B) dependence of the adhesive forces on the preloading forces; (C) the variation of adhesive force with the preloading time; (D) statistic results about the adhesive forces of thin films bonding to different materials. a. Glass; b. stone; c. aluminum; d. wood; e. polyimide film; f. carbon fibre composite.

Fig.5 Stability of the film(A—E) Optical photos of one cyclic adhesion process for the film to the stone substrate; (F) contact angle(a) and adhesive forces(b) of the film after 50 cycles; (G) contact angles(a) and adhesive forces(b) of the film after 30 d storage.

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可粘贴超疏水薄膜的制备

Preparation of Bonded Super-hydrophobic Thin Film^†

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可粘贴超疏水薄膜的制备

Preparation of Bonded Super-hydrophobic Thin Film†

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Preparation of Bonded Super-hydrophobic Thin Film^†