【摘要】 以水玻璃为原料，乙酸乙酯为潜伏酸试剂，采用溶胶—凝胶法制备超细二氧化硅凝胶粉末。研究了成胶反应过程中Ｎａ＋ 浓度对反应体系成胶特性及最终所得二氧化硅凝胶粉末性能的影响，并用透射电镜和氮气物理吸附实验手段对粉末的有关性能进行了测试表征更多还原

【Abstract】 Ultrafine silica gel powders were prepared by means of sol gel with water glass and ethyl acetate as a latent acid reagent.The effect of Na + concentration in the sol gel process on the characteristics of silica sol gel formation and the property of silica gel powders obtained was studied,and the products were characterized by TEM and nitrogen adsorption.更多还原