A new kind of Al2O3 supporter for inorganic membranes

In this experiment, in order to prepare high quality inorganic membranes wh ich are conventionally not tough enough to bear high pressure, we tried thr ee kinds of CaO-MgO-SiO2 adhesives. Unlike conventional adhesives used for porous supporters, these three kinds of adhesives have high mechanical stre ngth, which ensure the high properties of the membranes with high porosity. Adhesive, sintering temperature, poremaker (or pore forming material) and holding heat time, were taken into account. The relationship between the pr operties of membranes and the four factors were found out through a kind of orthogonal experiment named Lg(3(4)). Then we got a better way to the prep aration of Al2O3 membranes which could have porosity over 45% and even rema in strength over 40 MPa.