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Antibacterial porous ceramic microbead and preparation method thereof
The invention relates to an antibacterial porous ceramic microbead and a preparation method thereof, the antibacterial porous ceramic microbead is formed by curing ceramic slurry, and the ceramic slurry comprises silica sol, methyltrimethoxysilane, a NaOH solution, a graphene dispersion liquid, a formic acid solution, a microbead foaming agent and isopropanol. Silane is hydrolyzed under the catalysis of organic acid to generate silanol, then silanol and silica sol are subjected to condensation polymerization to form macromolecules with Si-O-Si cross-linked structures, and the macromolecules are solidified to form a porous structure with nano pores. The silica sol is a main film-forming substance for a sol-gel reaction, and the methyltrimethoxysilane is an auxiliary film-forming substance for the sol-gel reaction. A porous structure is formed in the ceramic microbead by adding the microbead foaming agent, and the porous ceramic microbead is obtained by heating and forming at low temperature (100-220 DEG C) after atomization, so that compared with the porous ceramic microbead prepared by a conventional sintering method, the preparation temperature and energy consumption are greatly reduced, and the steps are simple.
本发明涉及一种抗菌多孔陶瓷微珠及其制备方法，由陶瓷浆料固化后形成，所述陶瓷浆料包括硅溶胶、甲基三甲氧基硅烷、NaOH溶液、石墨烯分散液、甲酸溶液、微球发泡剂、异丙醇。硅烷在有机酸的催化下水解生成硅醇，然后硅醇与硅溶胶发生缩聚反应，形成具有Si‑O‑Si交联结构的大分子，固化后是一种纳米孔隙的多孔结构。硅溶胶是溶胶‑凝胶反应的主要成膜物质，甲基三甲氧基硅烷是溶胶‑凝胶反应的辅助成膜物质。通过加入微球发泡剂使得陶瓷微珠内部形成多孔结构，再通过雾化后低温(100‑220℃)加热成型得到多孔陶瓷微珠，与常规烧结法制备的多孔陶瓷微珠相比，大大降低了制备温度和能耗，且步骤简单。
Antibacterial porous ceramic microbead and preparation method thereof
The invention relates to an antibacterial porous ceramic microbead and a preparation method thereof, the antibacterial porous ceramic microbead is formed by curing ceramic slurry, and the ceramic slurry comprises silica sol, methyltrimethoxysilane, a NaOH solution, a graphene dispersion liquid, a formic acid solution, a microbead foaming agent and isopropanol. Silane is hydrolyzed under the catalysis of organic acid to generate silanol, then silanol and silica sol are subjected to condensation polymerization to form macromolecules with Si-O-Si cross-linked structures, and the macromolecules are solidified to form a porous structure with nano pores. The silica sol is a main film-forming substance for a sol-gel reaction, and the methyltrimethoxysilane is an auxiliary film-forming substance for the sol-gel reaction. A porous structure is formed in the ceramic microbead by adding the microbead foaming agent, and the porous ceramic microbead is obtained by heating and forming at low temperature (100-220 DEG C) after atomization, so that compared with the porous ceramic microbead prepared by a conventional sintering method, the preparation temperature and energy consumption are greatly reduced, and the steps are simple.
本发明涉及一种抗菌多孔陶瓷微珠及其制备方法，由陶瓷浆料固化后形成，所述陶瓷浆料包括硅溶胶、甲基三甲氧基硅烷、NaOH溶液、石墨烯分散液、甲酸溶液、微球发泡剂、异丙醇。硅烷在有机酸的催化下水解生成硅醇，然后硅醇与硅溶胶发生缩聚反应，形成具有Si‑O‑Si交联结构的大分子，固化后是一种纳米孔隙的多孔结构。硅溶胶是溶胶‑凝胶反应的主要成膜物质，甲基三甲氧基硅烷是溶胶‑凝胶反应的辅助成膜物质。通过加入微球发泡剂使得陶瓷微珠内部形成多孔结构，再通过雾化后低温(100‑220℃)加热成型得到多孔陶瓷微珠，与常规烧结法制备的多孔陶瓷微珠相比，大大降低了制备温度和能耗，且步骤简单。
Antibacterial porous ceramic microbead and preparation method thereof
一种抗菌多孔陶瓷微珠及其制备方法
ZHAO JIE (author) / LI LIFENG (author) / LIU YANG (author) / ZHANG YALI (author) / HU YAO (author) / YU QINYANG (author) / ZUO YUNXIA (author)
2023-06-02
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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