以蜜胺泡沫体为模板,采用氟化聚酰亚胺制备了微孔泡沫炭。测定了其对环境中水气的吸附/脱附行为,发现:泡沫炭在空气中400℃活化1h,可以提高其对水气的吸附能力。与活化前相比,对水气的吸附量几乎高达3倍,尽管其微孔容积仅增大了1.5倍。对环境水气中的可逆吸附率与微孔容积成线性关系,微孔容积为0.75mL/g的泡沫炭,其水气吸附率约为质量分数40%。 Using melamine foam as a template, porous carbon foam was prepared by fluorinated polyimide. The adsorption / desorption behavior of water vapor in the environment was measured. It was found that activated carbon foam was activated at 400 ℃ for 1 h in the air, which could improve the adsorption capacity of water vapor. The amount of moisture adsorbed was almost three times higher than before activation, although its micropore volume increased only 1.5-fold. The linear relationship between the reversible adsorption rate and micropore volume in environmental water and gas was obtained. The adsorption capacity of water vapor was about 40% of the carbon foam with the volume of 0.75mL / g.