【摘要】 有机气凝胶是一种结构可控、低密度、非晶态纳米多孔材料。本文首次详细考察了酸老化过程参数对气凝胶特性的影响。结果发现 :酸浓度存在一个合适的值可使气凝胶密度最小 ,酸老化时间对气凝胶特性有一定影响 ,HCl、HAc、三氟乙酸 (SF)的老化作用相近 ,对气凝胶最终密度无太大影响。更多还原

【Abstract】 Organic aerogels are novel low\|density nanoporous non\|crystalline materials. The effect of aging process parameter on properties of aerogels was investigated in this paper. The results showed:there existed a suitable acid concentration, which ensured the minimal density of aerogels obtained, aging time have some effect on properties of aerogels, aerogels’density is similar through aged with different type of acid.更多还原