蒙脱土层间柱撑碳化及层间域孔特性表征  

Carbon-Pillared Montmorillonite and Pore Feature Characterization of Interlayer

作　　者：张增志[1] 刘建均 杨春卫[1] 

机构地区：[1]中国矿业大学(北京)生态功能材料研究所,北京100083

出　　处：《中国材料进展》2010年第4期49-53,共5页Materials China

基　　金：国家自然科学基金资助项目(50772131)

摘　　要：用丙烯酰胺改性钠基蒙脱土,然后分别在200,400,600℃下碳化4h,制得了柱撑蒙脱土。用扫描电镜对样品形貌进行对比,采用比表面积仪及孔径测定仪对材料的多孔性质,包括比表面积、孔结构以及孔径分布进行了分析,采用X射线衍射仪对柱撑的片层结构做了研究,采用综合热分析仪进行了热分析,并对热重曲线(TG)和差示热分析曲线(DTA)进行了分析。结果表明,柱撑蒙脱土的微观形貌呈片状,随着处理温度的升高,其片层结构更加明显,同时,碳柱撑蒙脱土的比表面积依次增加。In the paper,Na-montmorillonite modified by acrylamide was carbonized for 4 h at 200 ℃,400 ℃ and 600 ℃ and got pillared montmorillonite.Surface shape analysis of samples with Scanning Electron Microscope,testing specific area,pore volume and distribution of pore size with specific surface area and pore size analyzer of Micromeritics Corporation,XRD analysis with X-ray diffractometer of Rigaku Corporation,and analysis of the TG and DTA curve with Composite Thermal Analyzer were carried out.The results demonstrated that the microstructure of carbon-pillared montmorillonite is flaky.Its lamellar structure is more evident,the specific area and adsorption volume of montmorillonite increased as carbonization temperature rose.

关 键 词：柱撑蒙脱土 孔结构 碳化温度 

分 类 号：O647.2[理学—物理化学]