Synthesis of aluminosilicate monolithic system by a novel fast ambient drying process

Abstract

Aluminosilicate systems with high mechanical strength have been prepared by a rapid ambient pressure drying. A special nanocomposite structure results in the good mechanical properties and strengthens the aluminosilicate system for a rapid ambient pressure drying technique. The nanocomposite consists of an amorphous aluminosilicate network and an Al-containing nanocrystalline, reinforcement phase. The reinforcement phase and the gel network develop simultaneously from the starting solution in the gelation process. The nanocomposite structure can only be achieved at a limited molar ratio of Al/Si. The wet precursor system of drying has been synthesized by sol–gel technique from low cost water glass and environmental saving Al acetate. The bond system, the structure, the morphology, and the mechanical property were investigated in the function of Al/Si molar ratio.