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

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.