反相乳液法制备淀粉基微球及其表征  

Preparation by Inverse Emulsion Method and Characterization of Starch Microspheres

作　　者：张常虎[1] 

机构地区：[1]西安文理学院化学工程学院,陕西西安710065

出　　处：《化学与粘合》2017年第4期248-250,262,共4页Chemistry and Adhesion

基　　金：西安市科技计划项目(编号:CXY1531WL32);陕西省教育厅科技计划项目(编号:15JK2154)资助

摘　　要：以可溶性淀粉为原料,N,N-亚甲基双丙烯酰胺(MMBA)或环氧氯丙烷(ECH)为交联剂,Span60和Tween60混合为乳化剂,环己烷(80mL)和三氯甲烷(20mL)为油相,采用反相乳液法制备淀粉微球(starch microspheres)。以控制变量法来改变不同物质用量,通过扫描电镜观察微球形貌变化,确定最优的条件:淀粉浓度10%,乳化剂用量0.8g,油水比例3∶1,交联剂选用环氧氯丙烷(4mL)制备淀粉微球。利用红外光谱,扫描电镜,比表面积及孔径分析仪对淀粉微球进行性能表征,为以后应用研究作铺垫。The starch microspheres was prepared by inverse emulsion method with the soluble starch as raw materials, the N,N- methylenebisacrylamide （MMBA） and epichlorohydrin （ECH） as crosslinking agent, the Span60 and Tween60 mixture as emulsifier, the cyclohexane （80mL） and chloroform （20mL） as the oil phase. The dosage of different substances was changed by control variables method, and the microspheres morphology had been observed by scanning electron microscopy （SEM） in order to confirm the optimal conditions which were showed as follows： the starch concentration was 10%, the emulsifier was 0.8g, the oil-water ratio was 3：1 and the crosslinking agent was chosen to be epichlorohydrin （4mL）. Finally, the performance of starch micmspheres was characterized with infrared spectroscopy, SEM and specific surface area and pore size an- alyzer for further application study.

关 键 词：淀粉微球 反相乳液聚合 交联反应 

分 类 号：O636.9[理学—高分子化学]