微乳液体系中形貌可控合成碳酸钙的研究  

Synthesis of calcium carbonate with controlled morphologies in microemulsion system

作　　者：丁杨[1] 任洋洋[1] 王丹[1] 金泽[1] 程秋香 郭洪范[1] 刘云义 

机构地区：[1]沈阳化工大学化学工程学院辽宁省化工应用重点实验室,辽宁沈阳110142

出　　处：《无机盐工业》2017年第6期33-36,共4页Inorganic Chemicals Industry

基　　金：辽宁精细化工协同创新中心创新团队资助项目

摘　　要：采用不同微乳液体系制备出形貌可控的碳酸钙颗粒,并对表面活性剂、助表面活性剂和碳酸钙前驱体等影响因素进行了研究。结果表明,选择合适的表面活性剂可以提高微乳液体系中分散相的分散度,从而更有效地抑制碳酸钙颗粒的生长;通过改变助表面活性剂的种类,不但可以得到环境友好型微乳液体系,而且可以控制碳酸钙颗粒的生长方向;通过改变钙源,提供了一种与传统的油包水(W/O)型微乳液完全不同的材料制备方式,即水包油(O/W)型体系相界面反应模式,此反应模式使反应不再限制在水核中而是拓展到所有两相接触的接触面,并得到无定型碳酸钙颗粒。Different microemulsion systems were taken to prepare calcium carbonate particles with controllable morphologies. The influencing factors,such as surfactants, cosurfactants,and calcium carbonate precursor,were studied.The results showed that,selecting the appropriate surfactant may improve the micro-emulsion system in the dispersion of the dispersed phase,so as to more effectively inhibit the growth of calcium carbonate particles; Changing the type of co-surfactant could not only get environmentally friendly microemulsion system, but also could control the growth direction ofthe calcium carbonate particles; Changing the source of calcium could provide a completely different material preparation mode compared with a traditional W/O microemulsion,namely O/W type of system interfacial reaction mode,this mode of reaction no longer restricted to the nucleus but expanded all the interfaces ofthe two phases contacted, and gotthe amorphous calcium carbonate particles.

关 键 词：碳酸钙 微乳液 形貌可控 

分 类 号：TQ132.32[化学工程—无机化工]