Multi-strategy Programmable Emergence and Rapid Disappearance of Poly(vinyl alcohol)/Polydimethylsiloxane Wrinkled Structural Color for Optical Encryption Materials

Shi-jun Lu; Ji-yuan Chen; Xi-chang Ou; Tong Wu; Zhao-wei Lan; Wan-ying Zhang; Shu-ting Zhang; Shao-lin Lu; Deng-chong Feng; Yu-zhao Yang; Zhong-ke Yuan; Chen Wang; Zhi-kun Zheng; Xu-dong Chen

doi:10.11777/j.issn1000-3304.2026.25290

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Multi-strategy Programmable Emergence and Rapid Disappearance of Poly(vinyl alcohol)/Polydimethylsiloxane Wrinkled Structural Color for Optical Encryption Materials

Research Article | 更新时间：2026-05-08

- Multi-strategy Programmable Emergence and Rapid Disappearance of Poly(vinyl alcohol)/Polydimethylsiloxane Wrinkled Structural Color for Optical Encryption Materials
  增强出版
- Acta Polymerica Sinica Vol. 57, Issue 4, Pages: 902-913(2026)
- 作者机构：
  
  1.广东工业大学轻工化工学院广州 5100061
  2.化学与精细化工广东省实验室揭阳分中心揭阳 515200
  3.中山大学化学学院聚合物复合材料及功能材料教育部重点实验室及广东省高性能有机聚合物光电功能薄膜工程技术研究中心广州 510275
- 作者简介：
  
  Shao-lin Lu, E-mail: lushlin@gdut.edu.cn
- 基金信息：
- DOI：10.11777/j.issn1000-3304.2026.25290
  CLC：
- CSTR：32057.14.GFZXB.2026.7553
- Received：24 December 2025，
  
  Accepted：09 January 2026，
  
  Online First：28 February 2026，
  
  Published：20 April 2026
- 稿件说明：
移动端阅览
卢世俊, 陈基塬, 欧喜昌, 吴彤, 蓝昭伟, 张婉莹, 张淑婷, 鲁少林, 冯登崇, 杨玉照, 袁中柯, 汪成, 郑治坤, 陈旭东. 多策略可编程显现与快速消隐的聚乙烯醇/聚二甲基硅氧烷褶皱结构色光学加密材料. 高分子学报, 2026, 57(4), 902-913.

Lu, S. J.; Chen, J. Y.; Ou, X. C.; Wu, T.; Lan, Z. W.; Zhang, W. Y.; Zhang, S. T.; Lu, S. L.; Feng, D. C.; Yang, Y. Z.; Yuan, Z. K.; Wang, C.; Zheng, Z. K.; Chen, X. D. Multi-strategy programmable emergence and rapid disappearance of poly(vinyl alcohol)/polydimethylsiloxane wrinkled structural color for optical encryption materials. Acta Polymerica Sinica (in Chinese), 2026, 57(4), 902-913.
卢世俊, 陈基塬, 欧喜昌, 吴彤, 蓝昭伟, 张婉莹, 张淑婷, 鲁少林, 冯登崇, 杨玉照, 袁中柯, 汪成, 郑治坤, 陈旭东. 多策略可编程显现与快速消隐的聚乙烯醇/聚二甲基硅氧烷褶皱结构色光学加密材料. 高分子学报, 2026, 57(4), 902-913. DOI： 10.11777/j.issn1000-3304.2026.25290. CSTR： 32057.14.GFZXB.2026.7553.

Lu, S. J.; Chen, J. Y.; Ou, X. C.; Wu, T.; Lan, Z. W.; Zhang, W. Y.; Zhang, S. T.; Lu, S. L.; Feng, D. C.; Yang, Y. Z.; Yuan, Z. K.; Wang, C.; Zheng, Z. K.; Chen, X. D. Multi-strategy programmable emergence and rapid disappearance of poly(vinyl alcohol)/polydimethylsiloxane wrinkled structural color for optical encryption materials. Acta Polymerica Sinica (in Chinese), 2026, 57(4), 902-913. DOI： 10.11777/j.issn1000-3304.2026.25290. CSTR： 32057.14.GFZXB.2026.7553.

摘要

刺激响应性表面褶皱图案在光学加密防伪领域展现出巨大应用潜力，但其程序化生成与可逆快速消隐，仍是当前该领域亟待突破的关键挑战. 本研究基于聚乙烯醇(PVA)与聚二甲基硅氧烷(PDMS)构建双层薄膜体系，利用二者弹性模量差异，实现具有结构色的表面褶皱. 该体系具备机械与湿度双响应协同调控能力：单轴拉伸触发褶皱显现，人工呼气(湿度刺激)可触发快速消隐(<1 s). 通过3种策略实现了褶皱图案的程序生成：(1) 采用区域掩膜旋涂法选择性构筑PVA顶层，双层膜通过单轴拉伸并随后释放，从而得到图案；(2) 对拉伸状态下的双层体系进行UVO (紫外臭氧)掩膜处理，通过调控不同区域PVA的弹性模量，在应力释放过程中可控制褶皱图案（如数字“8”“3”“7”）按序逐步显现；(3) 采用微电子打印机程序化喷涂无机盐溶液，利用无机盐破坏PVA分子内与分子间氢键，使喷墨区抑制褶皱生成，未喷墨区产生褶皱，从而实现图案化. 上述褶皱图案均受湿度影响，可通过人工呼气触发快速消隐(<1 s)，样品经60%重复拉伸释放循环1000次后图案出现与消失不受影响，稳定性良好. 这种同时具备简单单轴拉伸响应与湿度控制特性的褶皱图案，在光学加密防伪、智能显示等领域具有应用前景.

Abstract

Stimuli-responsive surface wrinkle patterns show great application potential in the field of optical encryption and anti-counterfeiting

but their programmable generation and reversible rapid erasure remain key challenges to be overcome in this field. In this work

a bilayer film system was constructed based on poly(vinyl alcohol) (PVA) and polydimethylsiloxane (PDMS). Surface wrinkles with structural colors were achieved by utilizing the difference in elastic modulus between the two materials. This system has the ability of synergistic regulation of mechanical and humidity dual responses: uniaxial stretching triggers the appearance of wrinkles

and artificial exhalation (humidity stimulation) can trigger rapid erasure (<1 s). Three strategies were adopted to realize the programmable generation of wrinkle patterns: first

a regional mask spin-coating method was used to selectively construct the PVA top layer

and the bilayer film was subjected to uniaxial stretching followed by release to obtain the pattern; second

the bilayer system in the stretched state was treated with ultraviolet ozone (UVO) mask

and by regulating the elastic modulus of PVA in different regions

the wrinkle patterns (such as numbers "8"

"3" and "7") could be controlled to appear sequentially during the stress release process; third

a microelectronic printer was used for programmable spraying of inorganic salt solution

which destroys the intramolecular and intermolecular hydrogen bonds of PVA

thereby inhibiting the formation of wrinkles in the inkjet area while wrinkles are generated in the non-inkjet area to achieve patterning. All the above wrinkle patterns are affected by humidity and can be rapidly erased by artificial exhalation (<1 s). After 1000 cycles of repeated stretching and release at 60% pre-strain

the appearance and disappearance of the patterns are not affected

showing good stability. Such wrinkle patterns with both simple uniaxial stretching response and humidity control characteristics have broad application prospects in the fields of optical encryption and anti-counterfeiting

intelligent display and so on.

关键词

Keywords

references

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