FIELD: chemistry.
SUBSTANCE: invention relates to glass fibre which is used in making heat- and sound insulation material. The vitreous inorganic fibre has low shrinkage when used at temperature above 1000°C and retains structural integrity up to the operational temperature. The glass fibre contains over 71.25 wt % silicon dioxide, over 14 wt % magnesium oxide and up to 6 wt % of a compound which contains a lanthanide element. The compound which contains a lanthanide element acts as a viscosity modifier and improves ability to fibre formation.
EFFECT: making glass fibre which is resistant to high temperature effects and is short-lived in physiological liquids.
12 cl, 2 dwg, 2 ex
