摘要
对采用超重力技术制得的 3 0～ 60nm的CaCO3进行改性 ,在纳米CaCO3的表面形成一层具有一定致密度的SiO2 包覆膜 ,使其耐酸性得到极大的提高。采用TEM、BET、XPS等手段对改性前后的样品进行表征 ,并分析了耐酸成因。
The surface modification of calcium carbonate prepared by using super-gravity technique was carried out. A sheet of membrane with a fairly compactness was formed on the surface of nanometer calcium carbonate, and its acid-resistance was improved greatly. The samples of calcium carbonate modified and unmodified were characterized by using TEM, BET and XPS method. The reason of forming acid-resistance was analyzed also.
出处
《化工矿物与加工》
CAS
北大核心
2003年第5期5-7,23,共4页
Industrial Minerals & Processing
基金
教育部科学技术研究重大项目资助项目 (项目编号 :0 2 0 2 )
