| 摘要 |
<p>Products comprising man-made vitreous fibres are formed of a composition which contains, by weight of oxides, 0.5-4 % Al2O3, 2-10 % P2O5, 0.1-4 % TiO2 together with SiO2, FeO, CaO and MgO and optionally other elements. The products can have good dissolution rate at pH 7.5 and good mechanical properties even after exposure to humidity.</p> |
