论文部分内容阅读
采用W/O型乳化-固化法制备了明胶CaCO3复合微球,将此复合微球用盐酸处理除去表面CaCO3,得到多孔的明胶微球。以差示扫描量热法、热重分析、红外光谱、扫描电子显微镜等方法对复合微球和多孔明胶微球的物理性质进行了表征,同时探讨了多孔明胶微球的合成机理。结果表明,两种微球中均含有CaCO3;扫描电镜显示,微球表面呈多孔结构,粒径在20~40μm之间。
The gelatin CaCO3 composite microspheres were prepared by W / O emulsification-curing method. The composite microspheres were treated with hydrochloric acid to remove surface CaCO3 to obtain porous gelatin microspheres. The physical properties of composite microspheres and porous gelatin microspheres were characterized by differential scanning calorimetry, thermogravimetric analysis, infrared spectroscopy and scanning electron microscopy. The synthesis mechanism of porous gelatin microspheres was also discussed. The results showed that CaCO3 was contained in both microspheres. Scanning electron microscopy showed that the surface of the microspheres was porous with particle size of 20 ~ 40μm.