PORE STRUCTURE AND TEXTURE OF ORGANIC/INORGANIC HYBRID MATERIALS

被引：0

作者：

Tellez, Lucia ^{[1
]}

Balmori, Heberto ^{[1
]}

Valenzuela, Miguel A. ^{[2
]}

Rubio, Juan ^{[3
]}

Rubio, Fausto ^{[3
]}

Oteo, Jose L. ^{[3
]}

机构：

[1] ESIQIE IPN Zacatenco, Dpt Ingn Met, Mexico City 07738, DF, Mexico

[2] ESIQIE IPN Zacatenco, Lab Catalisis & Mat, Mexico City 07738, DF, Mexico

[3] CSIC, Inst Ceram & Vidrio, E-28049 Madrid, Spain

来源：

MECHANICAL PROPERTIES AND PERFORMANCE OF ENGINEERING CERAMICS AND COMPOSITES II | 2007年 / 27卷 / 02期

关键词：

D O I：

暂无

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

In this work, the influence of HCl concentration on the final pore structure and texture of organic/inorganic hybrid materials was studied. Organic/inorganic materials were prepared by the sol-gel method using tetraethylortosilicate, titanium alkoxide and silanol terminated-PDMS as precursors. These materials were characterized by means of nitrogen adsorption and mercury porosimetry. The results showed that at the highest acid concentration the total porosity increased and the macropores were the predominant form of porosity. On the other hand, using low acid concentrations the total porosity-decreased and the pore volume of micropores and mesopores increased. The microporosity was constituted by both ultra and supermicropores and the specific surface area of samples as well as that of micro, meso and macropores was affected by the HCl concentration. The specific surface area was increased from the smallest to medium acid concentration but at the highest acid concentration it decreased according to the pore structure of samples.

引用

页码：387 / +

页数：2

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