Influence of time and temperature of hydrothermal treatment on glass fibers surface

Autor: V Tomao, Renaud Denoyel, A.M. Siouffi
Rok vydání: 1998
Předmět:
Zdroj: Journal of Chromatography A. 829:367-376
ISSN: 0021-9673
DOI: 10.1016/s0021-9673(98)00867-x
Popis: Leaching appears to be a suitable method of obtaining a high hydroxyl population at the surface of borosilicate fibers. Several procedures were investigated and the treated fibers have been characterized by Fourier transform infrared spectroscopy (silanol band), and elemental analysis (carbon content) after trimethylsilylation. The texture of leached fibers was examined by scanning electron microscopy and the result was compared to that of original fibers. The modified fibers which exhibited the highest hydroxyl population with minimum alteration of the texture, as could be seen by scanning electron microscopy, were characterized by using nitrogen, krypton and water adsorption techniques in order to get information on surface area and porosity. The procedure revealed textural modifications: the surface area was increased and a micropore volume was formed.
Databáze: OpenAIRE