水凝膜中的渐变软化策略,以优化界面性和结构完整性之间的平衡
Hai-di Qiao1, Xia Liu1, Jun-Jun Shang1
1Department of Engineering Mechanics, Beijing University of Technology, Beijing 100124, China.
ACS applied materials & interfaces
|December 16, 2025
概括
本研究介绍了一种渐变软化水凝薄膜策略,以提高柔性电子产品的剥离阻力和结构完整性. 这种新的方法克服了传统方法的局限性,提高了设备的耐用性和性能.
科学领域:
- 材料科学 材料科学 材料科学
- 聚合物科学 聚合物科学
- 机械工程 机械工程
背景情况:
- 灵活的水凝膜对于可穿戴设备和电子产品至关重要.
- 现有的水凝面临着抗剥离性和结构完整性之间的权衡.
- 像表面修饰这样的传统方法无法解决这种固有的局限性.
研究的目的:
- 建议和验证水凝膜的梯度软化策略.
- 为了解决缺少界面剥离阻力和结构完整性的瓶问题.
- 为了提高柔性电子产品的水凝膜的性能.
主要方法:
- 制造具有穿透厚度下降模量梯度的水凝膜.
- 调整交叉连接器和含水量以控制机械性能.
- 使用纯切削试验,多角度剥离试验和有限元素分析 (FEA) 进行表征.
主要成果:
- 渐变软化膜的破裂性达到1253.5J/m2,明显高于均膜.
- 通过"硬软协同作用" (通过"硬软协同作用") 证明了优越的剥离阻力 (比均薄膜高出2.1-3.6倍).
- 片在6天的储存和1000个曲周期后显示稳定性.
结论:
- 梯度软化策略有效地提高了水凝膜的结构完整性和界面剥离阻力.
- 这种方法为开发耐用和高性能灵活电子产品提供了一种新的解决方案.
- 软机器人和可穿戴传感器中的仿生界面的潜在集成与先进制造.
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