拉伸应力作用下PDMS抗渗性能的分子动力学研究

IF 2.3 4区化学 Q3 CHEMISTRY, PHYSICAL

Colloid and Polymer Science Pub Date : 2025-05-28 DOI:10.1007/s00396-025-05447-y

Shilong Cheng, Cheng Zhang, Haolin Dai, Chengji Zheng, Ningbo Liao

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引用次数: 0

摘要

聚二甲基硅氧烷（PDMS）广泛用于制造柔性防水应变传感器，这些传感器通常在水环境中拉伸。在本研究中，我们使用分子动力学（MD）模拟来探讨拉伸对PDMS抗渗透性的影响。结果表明，拉伸可以提高PDMS的透水性，但在一定模拟时间范围内（250 ps），在30%应变范围内PDMS仍能保持防水性能。水分子与PDMS底物的相互作用能随应变增大而增大。这些发现为在水环境中PDMS在机械应力下的性能提供了见解。图形抽象

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Molecular dynamics study of the anti-permeability performance of PDMS under tensile stress

Polydimethylsiloxane (PDMS) is widely used for making flexible waterproof strain sensors, which are often stretched in watery environments. In this study, we used molecular dynamics (MD) simulations to explore the effect of stretching on the anti-permeability of PDMS. The results show that stretching could increase the water permeability of PDMS, however, within a certain simulated time range (250 ps), PDMS can still maintain its waterproofing ability within 30% strain. The interaction energy between water molecules and the PDMS substrate increases with strain. These findings provide insight into the performance of PDMS under mechanical stress in aqueous environments.

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来源期刊

Colloid and Polymer Science 化学-高分子科学

CiteScore

4.60

自引率

4.20%

发文量

111

审稿时长

2.2 months

期刊介绍： Colloid and Polymer Science - a leading international journal of longstanding tradition - is devoted to colloid and polymer science and its interdisciplinary interactions. As such, it responds to a demand which has lost none of its actuality as revealed in the trends of contemporary materials science.