CAJ | 학술논문

摘要：制备纳米硫酸钙（CaSO4）颗粒的关键在于采用适宜的制备工艺条件配制反相微乳液．使CaSO4晶体在理想的环境中生长。采用AOT、OP-10复合表面活性剂／环己烷／正戊醇／水溶液反相微乳液反应体系，在水与表面活性剂的摩尔比（水表比）60=20、反应物浓度n（[Ca^2＋]）／n（SO^2＋]）-0．125mol／L、陈化时间t=10min的条件下，制备出了形貌均一。平均粒径为70nto的球形CaSO4颗粒。用扫描电子显微镜（SEM）对产物形貌和大小进行了表征。实验分析了水表比ω、反应物浓度n（[Ca^2＋]）／n（[SO2/4]）值、陈化时间t等因素对纳米CaSO4颗粒粒径的影响。
적요：제비납미류산개（CaSO4）과립적관건재우채용괄의적제비공예조건배제반상미유액．사CaSO4정체재이상적배경중생장。채용AOT、OP-10복합표면활성제／배기완／정무순／수용액반상미유액반응체계，재수여표면활성제적마이비（수표비）60=20、반응물농도n（[Ca^2＋]）／n（SO^2＋]）-0．125mol／L、진화시간t=10min적조건하，제비출료형모균일。평균립경위70nto적구형CaSO4과립。용소묘전자현미경（SEM）대산물형모화대소진행료표정。실험분석료수표비ω、반응물농도n（[Ca^2＋]）／n（[SO2/4]）치、진화시간t등인소대납미CaSO4과립립경적영향。
A key factor of preparing nano calcium sulfate is to employ a appropriate technology condition for forming reverse micelle microemulsion, which makes CaSO4 crystal grow with an ideal templating effect of reverse mieelle. Homogeneous spherical nano CaSO4 with an average diameter of 70nm were prepared by using reverse micelle microemulsion of AOT, OP-10 compound surfactants/cyclohexane/n-pentanol/water under mole ratio of water to surfactants 20, reactants Concentration n（[Ca^2＋ ]）/n（[SO4/2-]）=0. 125mol/L and aging time 10 min. The influence factors such as the molar ratio of water to surfactants （ω）, reactants concentration, n（[Ca^2＋]）/n（[SO4/2- ]） value, aging time t, etc. were also analyzed.