Influence of the Structure of Hydrophobic Porous Silica Materials of SBA-15 Type and Polymethylsiloxane Derivatives on the Value of Water Intrusion Pressure

被引：1

作者：

Kurmach, M. M. ^{[1
]}

Tsyrin, N. N. ^{[2
]}

Eroshenko, A. V. ^{[2
]}

Shvets, O. V. ^{[1
]}

Chernenko, Z. V. ^{[1
]}

Yaremov, P. S. ^{[1
]}

Davydovskyi, L. S. ^{[3
]}

Bisyk, S. P. ^{[3
]}

Zhuchenko, A. M. ^{[4
]}

Melnichenko, G. M. ^{[4
]}

Kolotilov, S. V. ^{[1
]}

机构：

[1] NAS Ukraine, LV Pisarzhevsky Inst Phys Chem, Kiev, Ukraine

[2] Natl Tech Univ Ukraine Igor Sikorsky Kyiv Polytec, Inst Energy Saving & Energy Management, Kiev, Ukraine

[3] Cent Sci Res Inst Armament & Mil Equipment Armed, Kiev, Ukraine

[4] NAS Ukraine, State Enterprize Katek LV Pysarzhevsky Inst Phys, Kiev, Ukraine

来源：

THEORETICAL AND EXPERIMENTAL CHEMISTRY | 2021年 / 57卷 / 02期

关键词：

hydrophobic porous materials; SBA-15; polymethylsiloxane; water intrusion; damper;

D O I：

10.1007/s11237-021-09682-6

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

A series of silica mesoporous molecular sieves SBA-15 with a 7.7 +/- 0.8 nm pore diameter, the surface of which is hydrophobized with methylsilyl groups, and polymethylsiloxane derivatives with a 1.6 +/- 0.8 nm pore diameter were obtained. These sieves are characterized by X-ray phase analysis, adsorption of nitrogen at 77 K and water at 293 K, as well as IR spectroscopy. It is established that there is a significant resistance to water intrusion (absorption) only in the case of substances characterized by the nitrogen adsorption potential value increment mu(0) <= 6.4 kJ/mol. The studied systems can be used as "molecular springs" in shock load damping devices due to their functional properties.

引用

页码：134 / 140

页数：7

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