硅酸盐通报
硅痠鹽通報
규산염통보
BULLETIN OF THE CHINESE CERAMIC SOCIETY
2009年
5期
1076-1079
,共4页
修饰%凹凸棒石%复合粉体%白度%粒度分布
脩飾%凹凸棒石%複閤粉體%白度%粒度分佈
수식%요철봉석%복합분체%백도%립도분포
modifying%attapulgite%composite powder%whiteness%size distribution
将凹凸棒石与Ca(OH)2-H_2O-CO_2系统相结合,采用非均相成核法制备了碳酸钙修饰凹凸棒石复合粉体.并对复合粉体的白度、粒度、物相、微观形貌进行了测试和分析,结果表明:凹凸棒石粉体白度由71.13提高到93.37, 平均粒度D90由244.620 μm减小到22.091 μm,复合粉体中碳酸钙粒径为30～40 nm.对复合粉体的形成机理进行了探讨.
將凹凸棒石與Ca(OH)2-H_2O-CO_2繫統相結閤,採用非均相成覈法製備瞭碳痠鈣脩飾凹凸棒石複閤粉體.併對複閤粉體的白度、粒度、物相、微觀形貌進行瞭測試和分析,結果錶明:凹凸棒石粉體白度由71.13提高到93.37, 平均粒度D90由244.620 μm減小到22.091 μm,複閤粉體中碳痠鈣粒徑為30～40 nm.對複閤粉體的形成機理進行瞭探討.
장요철봉석여Ca(OH)2-H_2O-CO_2계통상결합,채용비균상성핵법제비료탄산개수식요철봉석복합분체.병대복합분체적백도、립도、물상、미관형모진행료측시화분석,결과표명:요철봉석분체백도유71.13제고도93.37, 평균립도D90유244.620 μm감소도22.091 μm,복합분체중탄산개립경위30～40 nm.대복합분체적형성궤리진행료탐토.
Incorporate the attapulgite and the system of Ca(OH)_2-H_2O-CO_2, the composite powder of attapulgite modified by calcium carbonate used the method of heterogeneous nucleation were prepared. The whiteness, distribution of particle size, the phase constitution and the microscopic pattern were tested and analysed.The results show that the whiteness of attapulgite has raised from 71.13 to 93.37, the average particle size D90 decreases rapidly from 244.620 μm to 22.091 μm and the size of calcium carbonate particle is 30-40 nm. The formation mechanics of composite powder were discussed.
