Abstract
The wettability of refractory glass fibers of an aluminosilicate composition by watersoluble binders (water glass, silica sol, or a polyvinyl acetate dispersion) has been studied; the critical surface tension of the fibers and the thermodynamic work of adhesion has been determined. It is established that the PVAD and silica sol are almost identical wetting agents for glass fibers and are slightly better than water glass. A direct connection has been established between the adhesion of the binder to the fibers and the bend strength of the thermal-insulating products.
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