SDS/AA复合改性水滑石的制备及表征  

Preparation and Characterization of Sodium Dodecyl Sulfate/Acrylic acid-modified LDH

作　　者：毕付英[1] 秦军[1] 姜定 杨靖[1] 陈彤[1] 

机构地区：[1]贵州大学喀斯特环境与地质灾害防治教育部重点实验室,贵州贵阳550025 [2]贵州大学材料与冶金学院,贵州贵阳550025

出　　处：《贵州大学学报（自然科学版）》2016年第3期14-18,38,共6页Journal of Guizhou University:Natural Sciences

基　　金：国家自然科学基金项目资助(21266005);贵州大学研究生创新基金项目资助(研理工2015074)

摘　　要：以MgAl-CO_3型水滑石为前体,由离子交换法制备十二烷基磺酸钠和丙烯酸复合改性的插层水滑石,并用X射线衍射仪、红外光谱仪对样品进行表征。研究了pH、反应温度、反应时间、丙烯酸和水滑石的摩尔比对离子交换反应的影响。结果表明,当pH为4、反应温度为70℃、反应时间为3 h、丙烯酸与水滑石的摩尔比为1时获得的插层水滑石的层间距较大、插层率高。Sodium dodecyl sulfate and acrylic acid modified LDH were prepared by ion exchange method with MgAl-CO3 LDH as precursor. The prepared samples were characterized by XRD,FT-IR. The effects of pH,reaction temperature,reaction time,molar ratio of acrylic acid and LDH to ion exchange reaction were investigated. Results show that,large interlayer spacing and high intercalated ratio SDS / AA-LDH could be obtained when pH at 4,the reaction temperature at 70 ℃,the reaction time not more than 3 hours and the molar ratio of acrylic acid and LDH was about 1.

关 键 词：插层水滑石 离子交换法 丙烯酸 十二烷基磺酸钠 

分 类 号：O614.2[理学—无机化学] O614.3[理学—化学]