IGC反气相色谱法分析氧化铝包覆碳酸钙二元复合物表面能的研究  

Surface Energy Study of AlOOH Coated Calcium Carbonate by Inverse Gas Chromalography

作　　者：丁孝初[1] 岳林海[1] 金达莱[1] 

机构地区：[1]浙江大学化学系

出　　处：《无机化学学报》2005年第6期879-884,F009,共7页Chinese Journal of Inorganic Chemistry

摘　　要：Spindly calcium carbonate coated with AlOOH has been successfully prepared by bubbling carbonization method. SEM and XRD analysis results suggested an amorphous filiform the coating layer of AlOOH. Inverse gas chromatography (IGC) analysis indicated that γsD, the London component of surface energy of calcium carbonate increased after being coated with AlOOH, especially when with the coating weight quantity of 4%. And the reduction of the γsD value with the ascending column temperature became more obvious along with the increase of the coating weight quantity, which might be due to the desorption of water from the surface. In addition, the surface acid- alkali capacity of calcium carbonate also increased after coating.Spindly calcium carbonate coated with AlOOH has been successfully prepared by bubbling carbonization method. SEM and XRD analysis results suggested an amorphous filiform the coating layer of AlOOH. Inverse gas chromatography (IGC) analysis indicated that γsD, the London component of surface energy of calcium carbonate increased after being coated with AlOOH, especially when with the coating weight quantity of 4%. And the reduction of the γsD value with the ascending column temperature became more obvious along with the increase of the coating weight quantity, which might be due to the desorption of water from the surface. In addition, the surface acid- alkali capacity of calcium carbonate also increased after coating.

关 键 词：包覆碳酸钙 表面能 氧化铝 二元复合物 反气相色谱法 表面性质 

分 类 号：O614.231[理学—无机化学] O647.1[理学—化学]