硅酸三钙水化过程中合成掺杂硅的球形球霰石  

Synthesis of silicon-doped spherical vaterite through hydration of tricalcium silicate

作　　者：李文惠[1] 张垠[1] 王定改[1] 徐哲哲[1] 艾佳楠[1] 

机构地区：[1]南京工业大学材料科学与工程学院,江苏南京210009

出　　处：《现代化工》2015年第4期68-70,共3页Modern Chemical Industry

摘　　要：研究了一种在Ca3Si O5水泥中直接合成掺杂硅的球形球霰石的新型环境友好型的方法。该方法为合成用于骨组织修复的生物材料提供了新的思路。球霰石具有高比表面积、高分散性、高溶解度、高比重,因而成为一种重要的生物材料,同时硅元素可以促进骨组织的形成。通过在Ca3Si O5水泥水化过程中引入CO2合成球霰石可以同时消除Ca3Si O5水泥水化过程中产生的不利物质Ca(OH)2。A novel, environmentally friendly method is developed to directly synthesize silicon-doped spherical vaterite from Ca3 SiO5 cement, offering a promising approach for synthesizing biomaterials for hard tissue repair. Vaterite is an important biomedical material due to its high specific surface area, high solubility, high dispersibility, and low specific gravity,while silicon can further promote bone formation. By introducing CO2 into the hydration process of Ca3SiO3, the adverse effects of Ca（OH）2 on the cement can be eliminated. X-ray diffraction, Fourier transform infrared spectroscopy, scanning electron microscopy, and energy dispersive X-ray spectroscopy measurements are performed to confirm the presence and the structure of vaterite.

关 键 词：生物医学应用 溶胶-凝胶过程 球霰石 烧结 粉体技术 

分 类 号：TQ172.1[化学工程—水泥工业]