纳米材料-碳酸钙的形貌控制研究

纳米材料-碳酸钙的形貌控制研究

谷丽1*，魏凯娜1，闫皙1

1河北科技大学化学与制药工程学院，河北省石家庄市裕华东路70号，050018

*Email:gabb120@

摘要：碳酸钙广泛应用于建材、橡胶、塑料、造纸、涂料、油墨、医药等行业。不同行业对碳酸钙的晶形有不同的需求：生产油墨需立方形或球形；橡胶行业需针形或链状；电子、陶瓷行业需要高纯、微细、球形；造纸行业需要片状、纺锤状的碳酸钙。因而不同形态的碳酸钙制备技术的研究已成为许多国家竞相开发的热点。我课题组通过利用间歇鼓泡碳化法，通过改变工艺条件、添加晶形控制剂等方法成功制备了分散性好的纳米球形、立方、纺锤形的碳酸钙，并通过中试放大试验的改进，在工业生产中取得了良好的生产成果，所得产品由日本日立公司S-4800型扫描电镜表征，如下图所示：

关键词：碳酸钙；形貌；控制

参考文献

[1] 曾蕾，贺全国，吴朝辉.表面改性及应用进展, 2009,39（4）:1-6

[2] S. JAIN, H. GOOSSENS, F. PICCHIONI, et al. Polymer, 2005, 46(17): 6 666–6 681

Nanometer material-the research of calcium carbonate morphology

Gu Li 1*, Wei 1, Yan 1,

1Department of Chemical and phamarcutical engineering, Hebei University of science and

technology, Yuhua East Road 70 , Shijiazhuang, 050018

Abstract:The preparation technology of different crystal morphology of calcium carbonate has become the hot field of many countries. Our research group through the use of intermittent bubbling carbonation method, changing the processing conditions, such as adding crystal-growing controlling agent , a good dispersion of nanometer spherical, cubic, spindle calcium carbonate have been prepared.Through the improvement of pilot test, the industrial production has achieved an ideal result.

Fig.1 SEM image of spherical morphology Fig. 3SEM image of spindle morphology Fig. 2 SEM image of cubic morphology