生物医学用杂化材料的热分析和SANS表征
Thermal analysis and SANS characterisation of hybrid materials for biomedical applications
摘要：
通过溶胶-凝胶法制备了硅酸盐杂化材料，并添加x wt%的丙醇锆（x = 0和1）。通过热重分析和差热分析研究了复合材料的热行为以及Zr的加入对复合材料热性能的影响。用X射线衍射和小角中子散射研究了微结构随温度的变化。有人发现，聚合物降解的开始发生在一个更高的温度下，在与Zr的添加比在没有制备的材料制备的材料。在纳米尺度下，无Zr的材料显示出光滑的界面，而Zr的材料呈现质量分形结构。在200 ℃热处理后，在不含Zr的材料中也观察到这种结构。结果表明，与光滑表面相比，质量分形结构更有利于生物活性。
英文摘要：
Silicate hybrid materials were prepared by the sol-gel process with the addition of x wt% of zirconium propoxide (x = 0 and 1). The thermal behavior as well as the influence of Zr addition was studied by thermal gravimetric analysis and differential thermal analysis. The microstructure evolution with temperature was investigated by X-ray diffraction and small angle neutron scattering. It was found that the beginning of polymer degradation occurs at a higher temperature in the material prepared with addition of Zr than in the one prepared without. At the nanometric scale, the materials prepared without Zr show smooth interfaces, whereas those with Zr present a mass fractal structure. This structure is also observed in the material without Zr after thermal treatment at 200 C. The results showed that bioactivity is favored by mass fractal structures in comparison with one consisting of smooth surfaces.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
