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The Alkaline Resistance of Waterborne Acrylic Polymer/SiO2 Nanocomposite Coatings
Journal of Analytical Methods in Chemistry ( IF 2.3 ) Pub Date : 2022-04-22 , DOI: 10.1155/2022/8266576
Hoang Thi Huong Thuy 1 , Hoang Thu Ha 2 , Nguyen Thien Vuong 3, 4 , Tuan Anh Nguyen 3
Affiliation  

This study presents a study on the influence of nano-SiO2 on the alkaline resistance of waterborne acrylic coating using some analysis methods such as FT-IR and UV-Vis spectroscopy, combined with FE-SEM analysis and monitoring weight and adhesion changes during exposure to the saturated Ca(OH)2 alkaline environment. The obtained results indicated that the alkaline resistance of acrylic coating enhanced appreciably when adding 2.5 wt% of nano-SiO2. Under the impact of the saturated Ca(OH)2 solution for 20 days of immersion, nanocomposite coating containing 2.5 wt.% of nano-SiO2 was only decreased by 3.6% of the weight and 15.4% of the adhesion, while the neat acrylic coating (without nano-SiO2) seriously reduced 25.4% of the weight and 39.1% of the adhesion.

中文翻译:

水性丙烯酸聚合物/SiO2纳米复合涂料的耐碱性

本研究采用 FT-IR 和 UV-Vis 光谱等分析方法,结合 FE-SEM 分析,监测曝光过程中的重量和附着力变化,研究了纳米 SiO 2对水性丙烯酸涂料耐碱性的影响。到饱和的 Ca(OH) 2碱性环境。结果表明,添加2.5 wt%的纳米SiO 2后,丙烯酸涂料的耐碱性明显增强。在饱和 Ca(OH) 2溶液浸泡 20 天的冲击下,含有 2.5 wt.% 纳米 SiO 2的纳米复合涂层仅降低了 3.6% 的重量和 15.4% 的附着力,而纯丙烯酸涂层(不含纳米SiO 2) 严重降低了 25.4% 的重量和 39.1% 的附着力。
更新日期:2022-04-24
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