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Wang J, Ji H, Guo Y, Wang B, Han X, Li L, Wu F, Li J, Lu C. Light-assisted anti-wrinkling on azobenzene-containing polyblend films. SOFT MATTER 2022; 18:4475-4482. [PMID: 35667386 DOI: 10.1039/d2sm00630h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Undesired surface wrinkling is a persistent issue far from being resolved. Here, we report a simple light-assisted strategy to prevent surface wrinkling on azobenzene-containing polyblend films, which is based on the unique photo-responsive behaviors of azobenzene moieties. Upon visible light irradiation, the mechanical strain-induced surface wrinkling of the azo-based polyblend film attached on a pre-strained compliant substrate can be effectively suppressed. The influence of light irradiation conditions and polyblend composition on the wrinkling resistance has been systematically investigated. Notably, empirical scaling laws that can quantify the connection of the critical wrinkling conditions with external and internal factors are derived. This spatiotemporal light-assisted strategy combined with the simple universal blending method would provide a general guideline for the anti-wrinkling purpose in diverse functional material systems/devices.
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Affiliation(s)
- Juanjuan Wang
- School of Materials Science and Engineering, Tianjin Key Laboratory of Building Green Functional Materials, Tianjin Chengjian University, Tianjin, 300384, China.
| | - Haipeng Ji
- No. 46 Institute, China Aerospace Science and Industry Corporation Sixth Academy, Huhhot, 010010, China
| | - Yanqian Guo
- School of Materials Science and Engineering, Tianjin Key Laboratory of Building Green Functional Materials, Tianjin Chengjian University, Tianjin, 300384, China.
| | - Bin Wang
- School of Science, Tianjin Chengjian University, Tianjin, 300384, China
| | - Xue Han
- School of Materials Science and Engineering, Tianjin Key Laboratory of Building Green Functional Materials, Tianjin Chengjian University, Tianjin, 300384, China.
| | - Lele Li
- School of Materials Science and Engineering, Tianjin University, Tianjin, 300072, China.
| | - Fuqi Wu
- School of Science, Tianjin Chengjian University, Tianjin, 300384, China
| | - Jingqing Li
- School of Materials Science and Engineering, Tianjin University, Tianjin, 300072, China.
| | - Conghua Lu
- School of Materials Science and Engineering, Tianjin Key Laboratory of Building Green Functional Materials, Tianjin Chengjian University, Tianjin, 300384, China.
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