Thermal resistant glass fibres

摘要

Thermally stable glass fiber, comprises silicon dioxide (SiO 2) (62-66 mass.%), aluminum trioxide (Al 2O 3) (14-16.4 mass.%), titanium dioxide (TiO 2) (0.8-1.2 mass.%), calcium oxide (CaO) (10-12 mass.%), magnesium oxide (MgO) (4-6 mass.%), zinc oxide (ZnO) (0.8-1.5 mass.%), mixture of sodium- potassium- and lithium- oxide (Na 2O+K 2O+Li 2O) (0.2-0.6 mass.%), cerium oxide (CeO 2) (0.2-0.5 mass.%) and mixture of tellurium-, hafnium- and lanthanum- oxide (TeO 2+HfO 2+La 2O 3) (2-0.5 mass.%). An independent claim is included for preparing the glass fiber comprising coating the textile glass fibers with an aqueous sizing and subsequently thermally treating the glass fibers.