ULTRASOUND-PROCESSED SILICA XEROGELS BEHAVIOR DURING HEATING

被引:4
作者
BLANCO, E
RAMIREZDELSOLAR, M
DELAROSAFOX, N
ESQUIVIAS, L
机构
[1] Departamento de Estructura y Propiedades de los Materiales, University of Cádiz, Apartado 40, 11510 Puerto Real, Cádiz
关键词
D O I
10.1016/0167-577X(94)00253-3
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
Silica formamide-containing xerogels were prepared by different processing methods in order to evaluate sonocatalysis and solvent effects on xerogel thermal evolution. Characterization of the evolution of the xerogels upon heating was carried out by means of different thermal analysis techniques. The results offer valuable information for the selection of the proper thermal paths in order to obtain adequate materials for different xerogel applications. From the evaluation of the thermal features a mechanism of the formamide desorption from xerogel surface is proposed.
引用
收藏
页码:265 / 270
页数:6
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