张 涵¹,李 睿¹,丁 浩¹,冯增军²,孙思佳¹,王 炫¹

（1. 中国地质大学(北京)材料科学与工程学院,北京100083;2. 江苏群鑫粉体科技股份有限公司,江苏扬州225006）

引用格式：张涵,李睿,丁浩,等.CaCO₃@SiO₂复合颗粒的制备及应用研究进展[J].中国粉体技术,2023,29(3)：21-34.

ZHANG H,LI R,DING H,et al.Research progress on preparation and application of CaCO₃@SiO₂ composite particies[J].China Powder Science and Technology,2023,29(3)：21-34.

DOI：10.13732/j.issn.1008-5548.2023.03.003

收稿日期： 2022-10-26,修回日期：2022-12-02，在线出版时间：2023-04-11 09：44。

基金项目：国家自然科学基金项目,编号：51474194;国家自然科学基金资助项目,编号：51144011。

第一作者简介：张涵(1995—),女(满族),博士研究生,研究方向为矿物复合材料和非金属矿加工。E-mail：zhanghan0050@163.com。

通信作者简介：丁浩(1964—),男,教授,博士,博士生导师,研究方向为矿物复合材料和非金属矿加工。E-mail：dinghao@cugb.edu.cn。

摘要： 碳酸钙(CaCO₃)存在因颗粒表面光滑、棱角突出而不易与基体相容及耐酸、耐紫外老化性能差的问题,概括CaCO₃@SiO₂复合颗粒的制备方法和应用研究进展,包括机械力化学法、微波沉淀法、硅酸钠-酸沉淀法和Stöber法等方法的原理和特点,以及制备过程中各参数的影响。总结CaCO₃@SiO₂复合颗粒的结构与性能特点,以及SiO₂包覆CaCO₃的特征及优势。SiO₂不仅可改变CaCO₃的表面形貌特征,如粗糙表面及钝化棱角,还可赋予CaCO₃其他物理和化学特性,如增大比表面积,提高表面活性和赋予CaCO₃耐酸和耐紫外老化等功能特性。提出CaCO₃@SiO₂复合颗粒是以CaCO₃和SiO₂有序复合而成的新材料,可拓展应用于填料、超疏水涂层、热化学储能和阻燃泡沫金属等传统材料及环境和能源等新材料的领域,应充分利用二者各自的特点,基于所形成的复合颗粒的特性,最大程度地发挥优势,提高应用价值。

关键词： 碳酸钙;二氧化硅;复合颗粒;耐酸性;耐老化性

Abstract：Calcium carbonate (CaCO₃) has the problem that it is not easily compatible with the matrix (due to its somooth surface and prominent edges) and had poor acid and aging resistance.The research progress on the preparation methods and applications of CaCO₃@SiO2 composite particles was outlined,including the principles and characteristics of mechanochemistry,microwave precipitation,sodium silicate-acid precipitation and Stöber method,as well as the influence of each parameter in the preparation process.The strucural and performance features of CaCO₃@SiO₂ composite particles,and the characteristics and advantages of CaCO₃ coated with SiO₂ were summarized.SiO₂ can not only change the surface morphological characteristics of CaCO₃,such as roughing the surface and passivating the angles,but also give CaCO₃ other physical and chemical properties,such as increasing the specific surface area,improving surface activity,and giving CaCO₃ functional properties such as acid and aging resistance.It is proposed that CaCO₃@SiO₂ particles are new materials made of an ordered composite of CaCO₃ and SiO₂,which can be expanded for applications in traditional materials and new materials for the environment and energy such as fillers,superhydrophobic coatings,thermochemical energy storage materials and flam-retardant foam metals.The respective characteristics of the two should be fully utilized to maximize the advantages and increase the application value based on the characteristics of CaCO₃@SiO₂ composite partieles.

Keywords：calcium carbonate;silica;composite particles;acid resistance;aging resistance

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