Dispersion of SiC suspensions with cationic dispersant of polyethylenimine
Dispersion of SiC suspensions with cationic dispersant of polyethylenimine
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DOI：
10.2109/jcersj.113.584
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发表时间：
2005
影响因子：
1.1
通讯作者：
Fengqiu Tang;T. Uchikoshi;K. Ozawa;Y. Sakka
中科院分区：
文献类型：
--
作者：
Fengqiu Tang;T. Uchikoshi;K. Ozawa;Y. Sakka
通过测定SiC悬浮液的zeta电位、流变性能和吸附行为，研究了悬浮液pH值和阳离子聚乙烯亚胺（PEI）分散剂用量对SiC悬浮液稳定性的影响。不同pH条件下PEI在SiC表面的吸附状态对颗粒表面电荷的改变和悬浮液的稳定性起着关键作用。根据PEI的添加量确定稳定悬浮液的pH范围。
The influences of suspension pH and the added amount of the cationic polyethylenimine (PEI) dispersant on the stability of SiC suspensions have been investigated by measuring their zeta potential, rheological properties and adsorption behavior. The PEI adsorption state on the SiC surfaces under different pH conditions played a key role in the modification of the particle surface charges and the stability of suspensions. The pH range of stable suspensions was determined depending on the added amount of PEI.