Effects of organic additives on the morphology of various calcium phosphates prepared via solution and emulsion methods
Effects of organic additives on the morphology of various calcium phosphates prepared via solution and emulsion methods
复制标题
有机添加剂对溶液法和乳液法制备的各种磷酸钙形貌的影响
DOI：
10.1088/1757-899x/18/19/192017
复制
发表时间：
2011
期刊：
影响因子：
--
通讯作者：
T. Akazawa
中科院分区：
文献类型：
--
作者：
I. Kimura;T. Wei;Y. Kikushima;R. E. Riman;T. Akazawa
通过硝酸钙与磷酸氢二钾在溶液和复合乳液中反应制备了无水磷酸二钙（DCPA）和二水磷酸二钙（DCPD）颗粒。在磷酸盐溶液中加入有机化合物以改变其形态。在不添加添加剂的情况下，得到了大的平行四边形DCPD颗粒。通过加入2-氨基乙醇，产物的形状变为菱形，尺寸减小到1 / 20，相为DCPA。在复合乳液中制备了DCPA微球。它们是由片状的初级粒子构成的。油和外水相中表面活性剂的浓度对结晶相和形貌有影响。
Dicalcium phosphate anhydrous (DCPA) and dicalcium phosphate dihydrate (DCPD) particles were prepared through the reaction between calcium nitrate and dipotassium hydrogen phosphate in a solution and a multiple emulsion. Organic compounds were added into the phosphate solution with the aim of modifying the morphology. Large parallelogrammic particles of DCPD were obtained with no additive. By adding 2-aminoethanol, the product was changed to rhombic in shape and reduced to one-twentieth in size, and the phase was DCPA. In the multiple emulsion, microspheres composed of DCPA were prepared. They were constructed by flaky, primary particles. The crystalline phase and morphology were affected by the concentrations of surfactants in the oil and outer aqueous phases.