采用含有纳米碳酸钙的硅酸钠水性悬浮液在酸性物质作用下,硅酸盐发生水解-缩合反应生成溶胶从而沉积在纳米碳酸钙粒子表面的溶胶沉淀法,制备出具有核-壳结构的纳米碳酸钙/二氧化硅复合粒子.用TEM、IR、XPS、TGA、XRD等方法对复合粒子的大小、形貌、化学组成、结构、热性能及晶型等作了分析和表征.
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