标题:
β-环糊精/羟基磷灰石的制备与性能研究Study on Preparation and Characterization of β-Cyclodextrin/Hydroxyapatite
作者:
崔真真, 周奥佳
关键字:
羟基磷灰石, β-环糊精, 棒状, 作用机理Hydroxyapatite, β-Cyclodextrin, Rodlike Structures, Reaction Mechanism
期刊名称:
《Hans Journal of Chemical Engineering and Technology》, Vol.6 No.1, 2016-01-11
摘要:
本研究分别以CaCl2和H3PO4为钙源和磷源，NaOH为pH调节剂，成功制备了β-环糊精(β-CD)/羟基磷灰石(HAP)复合物。借助傅里叶变换红外光谱(FT-IR)、热重分析(TG)和扫描电镜(SEM)对反应产物进行了表征，研究β-CD浓度对产物的组成、热稳定性、形貌等的影响。结果表明，β-CD可以影响产物组成和形貌，随着β-CD浓度的增大，产物由最初的无规团聚逐渐变成针状、棒状结构。结合β-CD的分子结构及其自组装性能，对β-CD与HAP的反应机理进行了初步探讨。
β-cyclodextrin/hydroxyapatite was prepared by using calcium chloride (CaCl2) and phosphate (H3PO4) as the resource of calcium and phosphorus, respectively. During the synthesis, NaOH was used as pH adjusting agent to control the pH of the solution. Fourier transform infrared spectros-cope (FT-IR), thermogravimetric analysis (TG) and scanning electron microscopy (SEM) were used to characterize the product. The effects of the concentration of β-cyclodextrin on the size, compo-sition and morphology of the product were investigated. The results showed that β-cyclodextrin could significantly influence the composition and morphology of the product. With the increasing of β-cyclodextrin concentration, the structure of the product grew from the initial random aggregation to needle-like and rodlike structures. The reaction mechanism between β-CD and HAP was discussed on the basis of the special molecular structure of β-CD and its self-assemble property.