Assessment of influence of silane modified zirconia nanoparticle content on weather resistance of water-borne acrylic coating

Vietnam Journal of Science and Technology Pub Date : 2023-08-01 DOI:10.15625/2525-2518/16686

Nguyen Thuy Chinh, Dao Phi Hung, Nguyen Xuan Thai, Nguyen Anh Hiep, T. Hoang

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Abstract

Water-borne acrylic resin has attracted much attention thanks to its environmetally friendly, high weather stability, good mechanical properties, high toughness. It is widely used in coatings, ships, bridges, locomotives, etc. In this work, the effect of ZrO2 nanoparticles content which were modified with (3-glycidyloxypropyl)triethoxysilane (GPTS) on the weather resistance of the acrylic emulsion coatings was tested and discussed. The change in functional groups, carbonyl index value, gloss, weight and morphology of the coatings before and after accelerated weathering test was investigated. The obtained results showed that the GPTS modified ZrO2 nanoparticle content had a significant effect on the characteristics of acrylic emulsion coatings. The 2 wt.% content of GPTS modified ZrO2 nanoparticles exhibited a highest efficiency in improvement of weather resistance of acrylic emulsion coatings. This result indicated that acrylic emulsion coating filled by the GPTS modified ZrO2 nanoparticles is potential for outdoor applications.

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评估硅烷改性氧化锆纳米粒子含量对水性丙烯酸涂料耐候性的影响

水性丙烯酸树脂因其环保、耐候性强、机械性能好、韧性高而备受关注。它被广泛应用于涂料、船舶、桥梁、机车等领域。本研究测试并讨论了用（3-缩水甘油氧丙基）三乙氧基硅烷（GPTS）改性的 ZrO2 纳米粒子含量对丙烯酸乳液涂料耐候性的影响。研究了加速耐候试验前后涂料的官能团、羰基指数值、光泽、重量和形态的变化。结果表明，GPTS 改性 ZrO2 纳米粒子的含量对丙烯酸乳液涂料的特性有显著影响。GPTS 改性 ZrO2 纳米粒子含量为 2 wt.% 时，对丙烯酸乳液涂料耐候性的改善效率最高。这一结果表明，由 GPTS 改性的 ZrO2 纳米粒子填充的丙烯酸乳液涂料具有户外应用的潜力。

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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Vietnam Journal of Science and Technology

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