中文摘要：

研究了酸化浓度、温度与时间等条件对海泡石在恒温密闭空间内调湿性能的影响．利用X射线衍射仪、扫描电子显微镜和比表面积仪等测试了处理前后的海泡石的微观结构并分析了其与调湿性能的关系．结果表明，酸化条件对海泡石在密闭空间内的调湿性能有明显的影响，酸化处理后的海泡石纤维变细变短，层间和孔道中的碳酸盐被溶解，孔道被疏通．试验获得的最佳酸化条件为用1．2mol·L^-1的盐酸在95℃下处理6h．经最佳酸化处理后，海泡石的5～10nm的微孔体积增大，累积孔容积增大，比表面积略有下降．

英文摘要：

A study is made of the effect of different acidizing conditions such as concentration, temperature and time on humidity-controlling properties of sepiolites in closed space at constant temperature. Relationships between humidity-controlling properties and microstructure of treated and untreated sepiolites are studied by microscopic testing methods such as X-ray diffraction, scanning electron microscope （SEM） and Brunauer-Emmett-Teller（BET）. The results indicate that acidizing conditions have significant effect on humidity-controlling properties of sepiolite in closed space. Fibers in the treated sepiolites become thinner and shorter, and carbonates in layers and pore canals are dissolved. The optimum acidizing condition in this experimental program is obtained by treatment with 1.2 mol· L^-1 hydrochloric acid at 95 ℃ for 6 hours. 5 - 10 nm pores are enlarged and cumulative pore volume in sepiolite treated under the optimum aeidizing condition increases with no obvious change in its specific surface.