硅藻页岩的吸附机理及与调湿性能的关系研究  

Study on the Adsorption Mechanism of Diatom Shale and its Relationship with Humidity Control Performance

作　　者：姜广明 崔奕帆 毛立君 韩方超 胡水[4] 刘清龙 JIANG Guangming;CUI Yifan;MAO Lijun;HAN Fangchao;HU Shui;LIU Qinglong(China Academy of Building Research,Beijing 100013,China;Beijing Yuanshengwanlitong Trading Co.,Ltd.,Beijing 100013,China;Shandong Ni Boss New Material Co.,Ltd.,Weifang Shandong 262400,China;Beijing University of Chemical Technology,Beijing 100029,China;Beijing Institute of Petrochemical Technology,Beijing 102617,China)

机构地区：[1]中国建筑科学研究院有限公司,北京100013 [2]北京元晟万利通贸易有限公司,北京100013 [3]山东省泥博士新型材料有限公司,山东潍坊262400 [4]北京化工大学,北京100029 [5]北京石油化工学院,北京102617

出　　处：《工程质量》2025年第4期40-44,共5页Construction Quality

摘　　要：论文选取了三个不同国家出产的三种硅藻页岩,描述其产地和外观信息,从化学成分、晶体类型、硅藻形态等方面鉴定了三种硅藻页岩的结构和硅藻种类,并比较它们的吸湿和放湿性能,稚内层硅藻页岩的调湿性能最佳。对硅藻页岩的热失重分析曲线进行了解析,提出了热失重最大速率温度与硅藻页岩的吸附水的结合力有关,热失重分析可以作为调湿性能的快速分析手段。通过Kelvin吸附理论分析了硅藻页岩的比表面积、孔径、孔径分布对硅藻页岩的调湿性能的影响,证实了稚内层硅藻页岩与其他硅藻页岩不同的独特孔结构特征(吸附孔径、孔径分布)符合Kelvin吸附理论并是其超高调湿性能的结构基础。This article selects three types of diatom shale produced in three different countries,describes their origin and appearance information,identifies the structure and diatom species of the three types of diatom shale from chemical composition,crystal type,diatom morphology,and compares their humidity absorption and release properties.The humidity control performance of Wakkanai stratum diatom shale is the best.The thermogravity analysis curve of diatom shale was analyzed,and it was proposed that the temperature of maximum thermos gravity loss rate is related to the binding force of diatom shale to adsorb humidity.Thermogravity analysis can be used as a rapid analysis method for humidity control performance.The Kelvin adsorption theory was used to analyze the influence of the specific surface area,pore size,and pore size distribution of diatom shale on humidity control performance.It was confirmed that the unique pore structure characteristics(adsorption pore size,pore size distribution)of Wakkanai stratum diatom shale,which are different from other diatom shale,comply with the Kelvin adsorption theory and are the structural basis for its ultra-high humidity control performance.

关 键 词：硅藻页岩 调湿性能 比表面积 吸附孔径 孔径分布 

分 类 号：TU834[建筑科学—供热、供燃气、通风及空调工程]