碳酸钙晶须的制备

Preparation of CaCO_3 whiskers

采用溶液反应的方法 ,选用氯化钙和碳酸纳作为反应原料 ,控制反应物料的温度、浓度及pH值 ,制备出表面光滑的碳酸钙晶须。同时研究了反应温度、反应物浓度、反应体系 pH值及杂质离子对碳酸钙晶须形貌及尺寸的影响。

The calcium carbonate whiskers were prepared from CaCl 2-Na 2CO 3 system by the proper control of the temperature,concentration and pH value of the reaction.A Scanning electron microscope and an optical microscope were used to observe the morphology and dimention of the calcium carbonate whiskers.The effect of reaction temperature,reaction concentration,pH value and impurity on morphology and size of calcium carbonate whiskers was investigated also.