摘要
通过牺牲微米级PS模板原位合成方法制备微米级单分散中空SiO_2微球,着重研究反应温度(50,70℃)、TEOS用量(2,3,4 g)、氨水用量(1,2,3 mL)与MTC用量(0.2,0.4 g)等参数对中空微球的影响,获得微米级(1~5μm)、结构(孔径、壁厚等)可控的单分散中空SiO_2微球的最佳制备工艺,通过扫描电镜分析(SEM)、透射电镜分析(TEM)、红外光谱分析(FT-IR)、热失重分析(TGA)、氮吸附(BET)等测试手段表征了微球性能。
Through sacrificing micron grade PS template synthesis method in situ preparation of micron grade hollow monodisperse SiO_2 microspheres,this paper mainly studied the effect of such parameters as temperature reflex(50,70℃),TEOS usage(2,3,4 g),dosage of ammonia(1,2,3 mL) and dosage of MTC(0.2,0.4 g) on the silica microspheres,thus obtaining the best preparation technology of micronlevel(1-5 microns),and structure(hollow degree,wall thickness,etc.) of controllable monodisperse hollow SiO_2 microspheres.The performance of the microspheres was represented through testing methods such as SEM,TEM,FT-IR,TGA and BET.
出处
《西南科技大学学报》
CAS
2017年第4期1-6,共6页
Journal of Southwest University of Science and Technology
基金
国家重大科技专项(GFZX02040407)
极端条件物质特性实验室开放基金(13zxjk03)
关键词
中空二氧化硅微球
牺牲模板法
微米级微球
Hollow silica microspheres
Sacrificing template method
Micron grade microspheres
