Wall-to-wall adhesion for cellular substrates

IF 4.5 3区工程技术 Q2 MATERIALS SCIENCE, MULTIDISCIPLINARY

Extreme Mechanics Letters Pub Date : 2026-03-01 Epub Date: 2026-02-14 DOI:10.1016/j.eml.2026.102461

Feng Zhu , Jiawei Zhang , Kaimei Bao , Yinji Ma

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引用次数: 0

Abstract

The cellular substrates enhance stretchability and allow bio-fluids to pass through the substrates, thus having extensive applications for flexible electronics and bioelectronics. Wall-to-wall adhesion is a common problem encountered during the utilization of the cellular substrates, primarily attributable to the materials’ inherent adhesiveness and low modulus. In this paper, finite element analysis (FEA) is utilized to simulate the wall-to-wall adhesion process of the cellular substrates with the angles from 80^° to 140 by considering the deformation energy and the adhesion energy. Upon normalization, a scaling law that can determine whether adhesion occurs has been derived. When the normalized work of adhesion is above the critical normalized work of adhesion, adhesion occurs. Otherwise, it does not. Experimental were conducted on the cellular substrates with different angles and materials, and the results agree well with finite element analysis. This study not only reveals the mechanism of adhesion in cellular substrates but also provides practical guidance for the application of cellular substrates in flexible electronics.

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细胞基质的壁对壁粘附

细胞基板增强了可拉伸性，允许生物流体通过基板，因此在柔性电子和生物电子方面具有广泛的应用。在细胞基质的使用过程中，壁对壁的粘附是一个常见的问题，主要是由于材料固有的粘附性和低模量。本文采用有限元分析方法，考虑变形能和粘附能，模拟了细胞基底在80°~ 140°夹角范围内的壁面粘附过程。在归一化之后，可以确定是否发生粘连的标度定律已经导出。当粘接归一化功大于临界粘接归一化功时，发生粘接。否则，它不会。在不同角度、不同材料的蜂窝基底上进行了实验，结果与有限元分析结果吻合较好。该研究不仅揭示了细胞衬底的粘附机理，而且为细胞衬底在柔性电子领域的应用提供了实践指导。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Extreme Mechanics Letters Engineering-Mechanics of Materials

CiteScore

9.20

自引率

4.30%

发文量

179

审稿时长

45 days

期刊介绍： Extreme Mechanics Letters (EML) enables rapid communication of research that highlights the role of mechanics in multi-disciplinary areas across materials science, physics, chemistry, biology, medicine and engineering. Emphasis is on the impact, depth and originality of new concepts, methods and observations at the forefront of applied sciences.