Influence of various factors on the breakage rate of glass fibre

Abstract

Technical glass fibre fabrics generally are made from alkali-free (R2O<1%) alumina borosilicate E-type continuous glass fibre yarns. These materials have high (up to 600°C) thermal resistivity, low thermal conductivity and are inert to the majority of chemical reagents, resistant to many organic and mineral acids, weak alkali, water and high-pressure steam. E-type glass fibre is used as thermal and acoustic insulating material up to 600°C.The quality of glass fibre as well as of its fabrics depends on many parameters, including quality of raw and refractory materials, furnace construction and parameters, distribution and stoichiometric proportion of chemical elements in filaments, redox ratio in the glass, etc.In order to clarify main causes of filament breakage and surface defects, the morphology and compositional profiles of glass fibre were studied using Fourier Transform Infrared spectroscopy (FTIS), Scanning Electron Microscopy (SEM), X-ray microanalysis and X-ray powder diffraction.