Investigation of the strength loss of glass fibre after thermal conditioning

摘要: Single fibre tensile testing of thermally conditioned water sized and γ-aminopropyltriethoxysilane (APS) boron-free E-glass has been carried out. The fibres were produced from identical melts following which bare had only applied to it before winding whereas the a solution containing APS its surface. Both types experience loss room temperature strength after exposure elevated temperature. By application novel method single thermal conditioning, was demonstrated that heat-treated glass can be significantly underestimated. Strength found, in most cases, caused by combination effect mechanical handling damage. latter is found influenced loading fibre. onset damage APS-sized controlled degradation silane sizing. This suggests silane-based coatings, even when they are present as relatively thin surface layer, protect development or growth critical flaws. relative contribution overall highlights need minimise processes may cause during recycling procedures.