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Pore-Surface Modification as a Method of Controlling the Relaxation of a Nonwetting Liquid Dispersed in a Nanoporous Medium
Journal of Surface Investigation: X-ray, Synchrotron and Neutron Techniques ( IF 0.5 ) Pub Date : 2021-06-25 , DOI: 10.1134/s1027451021030228
S. A. Bortnikova , A. A. Belogorlov , P. G. Mingalev

This work presents the results of studying hydrophobized silica gel Fluka 100 C8 + C1 with additional chemical surface modification by single-link alkylsilane. The material is studied by low-temperature nitrogen sorption and liquid porometry, including additional liquid porometry methods. The results of studying the system without additional modification are also presented. All results are presented for three temperatures: 20, 40, and 60°C. It is shown that additional chemical modification allows an increase in the fraction of the nonwetting liquid flowing from the pores with increasing temperature while maintaining a significant proportion of nonwetting liquid that has not outflowed under normal conditions. The obtained results show that, by additional modification, it is possible to control the process of the time relaxation of a nonwetting liquid in a nanoporous medium.



中文翻译:

孔表面改性作为一种控制分散在纳米多孔介质中的非润湿液体松弛的方法

这项工作展示了研究疏水化硅胶 Fluka 100 C 8 + C 1 的结果通过单键烷基硅烷进行额外的化学表面改性。该材料通过低温氮吸附和液体孔隙测定法进行研究,包括额外的液体孔隙测定法。还介绍了在没有额外修改的情况下研究系统的结果。所有结果均针对三个温度提供:20、40 和 60°C。结果表明,额外的化学改性允许随温度升高从孔中流出的非润湿液体的比例增加,同时保持在正常条件下未流出的非润湿液体的显着比例。所得结果表明,通过额外的修改,可以控制纳米多孔介质中非润湿液体的时间弛豫过程。

更新日期:2021-06-25
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