Silica aerosol particulates with excellent properties were prepared by way of sol-gel process under normal pressure with formamide as catalust and waterglass as gel pioneer population.

• 采用甲酰胺作为反应催化剂,水玻璃作为凝胶先驱体,利用溶胶凝胶法在常压下制备出了性能优良的硅石气凝胶微粒,原材料便宜,合成工艺简单。