Two-staged sorption isotherm of a nanoporous energy absorption system

被引：39

作者：

Surani, FB ^{[1
]}

Kong, XG ^{[1
]}

Qiao, Y ^{[1
]}

机构：

[1] Univ Akron, Dept Civil Engn, Akron, OH 44325 USA

来源：

APPLIED PHYSICS LETTERS | 2005年 / 87卷 / 25期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1063/1.2144280

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

To selectively absorb impact energy, the profiles of sorption isotherms of protection systems must be adjusted in a broad spectrum. In this article, a N-Lauroylsarcosine sodium salt (sarcosyl) of intermediate molecular size is used to control the pressure induced infiltration of a nanoporous silica. The experimental result shows that the infiltration plateau of this system is two-staged; that is, not only the activation pressure but also the infiltration volume can be modified. It is noticed that the sarcosyl molecule demands a "free volume" to enter a nanopore. The free volume size decreases nearly linearly as the sarcosyl concentration increases. (c) 2005 American Institute of Physics.

引用

页码：1 / 3

页数：3

共 12 条

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