Alkali-resistant glass fibre

摘要

A glass-forming composition having high alkali resistance when formed into a glass body, which comprises a magnesium silicate admixed with a CaO-containing compound or a calcium silicate admixed with a MgO-containing compound. Also included is a process for preparing an alkali-resistant glass fiber, which comprises heating a mixture comprising a magnesium silicate and CaO-containing compound or a calcium silicate and a MgO-containing compound to above the liquidus temperature of the mixture to form a viscous liquid, drawing the viscous liquid to form a fiber, and cooling the fiber below the liquidus temperature.