Synthesis and Anti-aging Properties of Vinyl triethoxysilane Modified Fluorinated Acrylate Polymer Coatings for Stone Relics Conservation

IF 1 4区化学 Q4 POLYMER SCIENCE

Polymer Science, Series B Pub Date : 2025-06-23 DOI:10.1134/S1560090425600524

Chuang Ma, Sim Yee Chin, Luxin Yang, Suriati Binti Ghazali, Hengqiang Zhang

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Abstract

The degradation of stone cultural relics due to environmental factors, such as freeze-thaw, acid rain, and UV radiation, has necessitated the development of advanced protective coatings. In this study, fluorinated poly(methyl methacrylate-butyl acrylate) modified by vinyl triethoxysilane coating was synthesized via a one-pot method to enhance the durability and protective performance of coatings. The structure, thermal stability, and microstructure of the synthesized polymer were characterized using FTIR, XRD, TG, and SEM. The aging resistance of the coating formed was systematically evaluated under simulated freeze-thaw, acid, and UV aging conditions. Key properties, including hydrophobicity, chromaticity difference (ΔE), transparency, and mass loss rate, were analyzed before and after aging. Among the aging factors, UV exposure exhibited the most pronounced impact on these properties. However, polymer coatings with 18.5 mmol vinyl triethoxysilane demonstrated superior resistance to UV-induced degradation, maintaining a contact angle of 104.55°, the stability change of ΔE is 0.73, and acceptable transparency and mass loss rates after aging.

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石质文物保护用乙烯基三乙氧基硅烷改性氟丙烯酸酯聚合物涂料的合成及抗老化性能

由于冻融、酸雨、紫外线等环境因素的影响，石质文物发生了退化，这就要求开发先进的保护涂层。为了提高涂料的耐久性和防护性能，本研究采用一锅法合成了乙烯基三乙氧基硅烷涂层改性的含氟聚甲基丙烯酸甲酯-丙烯酸丁酯。采用FTIR、XRD、TG、SEM等手段对合成聚合物的结构、热稳定性和微观结构进行了表征。在模拟冻融、酸性和紫外线老化条件下，系统地评价了涂层的抗老化性能。分析了老化前后的关键性能，包括疏水性、色度差（ΔE）、透明度和质量损失率。在老化因素中，紫外线照射对这些性能的影响最为显著。然而，18.5 mmol乙烯基三乙氧基硅烷的聚合物涂层表现出优异的抗紫外线降解能力，其接触角保持在104.55°，稳定性变化ΔE为0.73，老化后的透明度和质量损失率可以接受。

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来源期刊

Polymer Science, Series B 化学-高分子科学

CiteScore

1.80

自引率

8.30%

发文量

审稿时长

>0 weeks

期刊介绍： Polymer Science, Series B is a journal published in collaboration with the Russian Academy of Sciences. Series B experimental and theoretical papers and reviews dealing with the synthesis, kinetics, catalysis, and chemical transformations of macromolecules, supramolecular structures, and polymer matrix-based composites (6 issues a year). All journal series present original papers and reviews covering all fundamental aspects of macromolecular science. Contributions should be of marked novelty and interest for a broad readership. Articles may be written in English or Russian regardless of country and nationality of authors. All manuscripts are peer reviewed