以双子表面活性剂模板合成碳酸钙-环糊精复合材料
Preparation of calcium carbonate-cyclodextrin composite materials by gemini surfactant templates
韩峰 1潘君扬 1郐俊强1
作者信息
- 1. 中国地质大学(北京)非金属矿物和固废资源材料化利用北京市重点实验室,矿物材料国家专业实验室,材料科学与工程学院,北京100083
- 折叠
摘要
以阳离子双子表面活性剂溴化N,N,N',N'-四甲基-N,N'-双十二烷基-1,6-己二铵(12-6-12)与阴离子表面活性剂十二烷基硫酸钠(SDS)混合系统,以及12-6-12/正丁醇/正辛烷/水微乳系统为模板,利用碳酸化法合成了具有贝壳珍珠层“砖-泥”结构碳酸钙-环糊精仿生复合材料.以X射线衍射(XRD)、红外光谱(IR)、透射电镜(TEM)表征产品的组成与形貌.讨论了模板尺寸、电性与复合材料形貌的关系.提出了“砖-泥”式层状结构生成机制.
Abstract
Mixed aqueous solution of cationic gemini surfactant hexamethylene-1,6-bis (dodecyldimethylammonium bromide (12-6-12) and anionic surfactant sodium dodecyl sulfate (SDS),and 12-6-12/n-butanol/n-octane/water microemulsion were used as templates to prepare calcium carbonate-cyclodextrin composite materials with brick-and-mortar structures like nacre.Structures and morphologies of materials were characterized by XRD,IR,and TEM experiments.Relationship between sizes and electric charges of templates and materials' morphologies was investigated,and the mechanism of brick-and-mortar structure formation was also put forward.
关键词
碳酸钙/环糊精/双子表面活性剂/珍珠层/仿生矿化Key words
calcium carbonate/cyclodextrin/gemini surfactant/nacre/biomineralization引用本文复制引用
基金项目
国家自然科学基金(51102217)
中央高校基本科研业务费专项资金(2011YYL008)
出版年
2015
NETL
NSTL
维普
万方数据