Dispersion effect of polyepoxysuccinic acid on nano calcium carbonate

被引：0
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作者：
Song, Chunhua [1 ]
Wei, Gang [1 ]
Xiong, Rongchun [1 ]
机构：
[1] College of Materials Science and Engineering, Beijing University of Chemical Technology, Beijing 100029, China
来源：
Beijing Huagong Daxue Xuebao (Ziran Kexueban)/Journal of Beijing University of Chemical Technology (Natural Science Edition) | 2007年 / 34卷 / 04期
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摘要：
The effect of different polymer dispersants and their mixtures on the dispersion behavior in aqueous suspensions of calcium carbonate particles with diameter of 60 nm has been investigated by photometric methods and free sedimentation. The results show that the dispersivity of calcium carbonate is much greater with polyepoxysuccinic acid (PESA) than with sodium polyacrylate (PAAS), PAAPS, AAS and AA/AMPS. Furthermore, the dispersivity of PESA could be further enhanced by combination with other inorganic or organic dispersants. The optimal dispersivity and stability were obtained for a composite dispersant of composition 1.8% PESA, 0.7% sodium hexametaphosphate (SHMP) and 0.1% sodium dodecyl sulfatye (SDS).
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页码：405 / 408
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