Paciejewski Mikołaj, Lange Agata, Jaworski Sławomir, Kutwin Marta, Bombalska Aneta, Siwiński Jarosław, Olkowicz Klaudia, Mierczyk Jadwiga, Narojczyk Kamila, Bogdanowicz Zdzisław, Nasiłowska Barbara
Faculty of Mechanical Engineering, Military University of Technology, gen. S. Kaliskiego 2, 00-908 Warsaw, Poland.
Department of Nanobiotechnology, Institute of Biology, Warsaw University of Life Sciences, Ciszewskiego 8, 02-786 Warsaw, Poland.
Materials (Basel). 2024 Dec 23;17(24):6288. doi: 10.3390/ma17246288.
In order to improve the performance of cement mortar (Portland cement), it was enriched with triclosan, hypochlorous acid, silver nanoparticles and graphene oxide. Cement mortar is used, among other things, to fill the gaps between the tiles of building porcelain stoneware. A number of structural, mechanical and biological tests were carried out. The structural tests included microscopic analysis and contact angle, reflectance and IR spectra, while the mechanical tests involved static bending and compression testing. These tests showed that the additions of graphene oxide and hypochlorous acid were most beneficial. These additions, although not detected by spectral methods, resulted in a significant increase in contact angle and mechanical properties. Studies of the viability of the bacteria Pseudomonas aeruginosa and Staphylococcus aureus showed that all the additives used resulted in a decrease in viability compared to the undoped cement mortar. There was also a beneficial decrease in the viability of fungi of the genus Fusarium on cement mortar mainly doped with silver nanoparticles.
为了提高水泥砂浆（波特兰水泥）的性能，向其中添加了三氯生、次氯酸、银纳米颗粒和氧化石墨烯。水泥砂浆除其他用途外，还用于填充建筑陶瓷砖之间的缝隙。进行了多项结构、力学和生物学测试。结构测试包括微观分析以及接触角、反射率和红外光谱分析，而力学测试涉及静态弯曲和压缩测试。这些测试表明，添加氧化石墨烯和次氯酸最为有益。这些添加物虽然未通过光谱方法检测到，但导致接触角和力学性能显著提高。对铜绿假单胞菌和金黄色葡萄球菌的活力研究表明，与未掺杂的水泥砂浆相比，所有使用的添加剂都导致活力下降。在主要掺杂银纳米颗粒的水泥砂浆上，镰刀菌属真菌的活力也有有益的下降。
