Harnessing Polar Aprotic Solvent Interfacial Interactions on Silica Cloth

IF 1.1 4区化学 Q4 CHEMISTRY, PHYSICAL

Doklady Physical Chemistry Pub Date : 2026-10-16 DOI:10.1134/S0012501625600950

Joon Hyuk Lee, Jungkun Song, Eunkyung Jeon, Jaeho Choi

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引用次数: 0

Abstract

The mechanical properties of silica cloth subjected to polar aprotic solvent treatment under ambient conditions, pressurization, and thermal exposure are investigated. The selected solvents of chloroform (CHCl₃), N-methyl-2-pyrrolidone (NMP), and methanol (MeOH) exhibit distinct adsorption behaviors, influencing their mechanical reinforcement effects. Under ambient conditions, MeOH-treated samples exhibit the highest tensile strength due to strong hydrogen bonding, followed by NMP and CHCl₃. Under 10 bar pressurization, NMP-treated samples surpass MeOH and CHCl₃ in tensile strength, indicating enhanced interfacial reinforcement. However, heat treatment at 180°C results in a significant decline in tensile strength, with CHCl₃-treated samples demonstrating superior mechanical stability compared to NMP and MeOH, attributed to solvent desorption effects. Elongation trends follow a similar degradation pattern, with MeOH-treated samples experiencing the most pronounced brittleness. Tensile modulus analysis reveals that NMP and MeOH treatments reduce structural stiffness due to their dependence on interfacial bonding, whereas CHCl₃-treated samples retain a higher modulus. Lastly, scanning electron microscopy analysis confirms the presence of solvent-induced degradation mechanisms, which contribute to tensile strength deterioration. These findings illustrate that adsorption strength governs mechanical behavior under ambient conditions, pressurization enhances interfacial reinforcement, and thermal exposure compromises solvent-induced strengthening.

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利用极性非质子溶剂在二氧化硅布上的界面相互作用

研究了经极性非质子溶剂处理的二氧化硅布在常温、加压和热暴露条件下的力学性能。氯仿（CHCl3）、n -甲基-2-吡咯烷酮（NMP）和甲醇（MeOH）的吸附行为不同，影响了它们的机械强化效果。在环境条件下，meoh处理的样品由于氢键强，抗拉强度最高，其次是NMP和CHCl3。在10 bar压力下，经过nmp处理的样品的抗拉强度超过了MeOH和CHCl3，表明界面增强。然而，在180°C下热处理会导致拉伸强度显著下降，与NMP和MeOH相比，chcl3处理的样品表现出更好的机械稳定性，这归因于溶剂解吸效应。延伸率趋势遵循类似的降解模式，meoh处理的样品经历最明显的脆性。拉伸模量分析表明，NMP和MeOH处理降低了结构刚度，因为它们依赖于界面键合，而chcl3处理的样品保留了更高的模量。最后，扫描电镜分析证实了溶剂诱导降解机制的存在，这有助于抗拉强度的下降。这些发现表明，在环境条件下，吸附强度决定了机械行为，加压增强了界面强化，热暴露损害了溶剂诱导的强化。

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

Doklady Physical Chemistry 化学-物理化学

CiteScore

1.50

自引率

0.00%

发文量

审稿时长

6-12 weeks

期刊介绍： Doklady Physical Chemistry is a monthly journal containing English translations of current Russian research in physical chemistry from the Physical Chemistry sections of the Doklady Akademii Nauk (Proceedings of the Russian Academy of Sciences). The journal publishes the most significant new research in physical chemistry being done in Russia, thus ensuring its scientific priority. Doklady Physical Chemistry presents short preliminary accounts of the application of the state-of-the-art physical chemistry ideas and methods to the study of organic and inorganic compounds and macromolecules; polymeric, inorganic and composite materials as well as corresponding processes. The journal is intended for scientists in all fields of chemistry and in interdisciplinary sciences.