Rheological behavior of aqueous suspensions of hydroxyapatite (HAP)
Rheological behavior of aqueous suspensions of hydroxyapatite (HAP)
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DOI：
10.1023/a:1015773322821
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发表时间：
2002-07-01
影响因子：
3.7
通讯作者：
Gauckler, LJ
中科院分区：
文献类型：
--
作者：
Bao, Y;Senos, AMR;Gauckler, LJ
本研究的目的是表征有机分散剂对羟基磷灰石（HAP）分散体稳定性的影响，采用粘度测量、电动声波振幅（ESA）测量和吸附等温线。研究了羟基磷灰石水悬浮液的胶体稳定性与固体载荷、防絮凝剂种类和浓度的关系。表征了颗粒与分散剂分子的相互作用。分散剂在颗粒表面的吸附量、粘度和电泳测量作为分散剂浓度的函数是相关的。悬浮液参数进行了调整，以获得具有塑性粘度的高固体负载浆料，这将允许其用于胶体加工。(C) 2002年Kluwer学术出版社。
The aim of this study is to characterize the influence of organic dispersants on the stability of hydroxyapatite (HAP) dispersions, using viscosity measurements, electrokinetic sonic amplitude (ESA) measurements and adsorption isotherms.Colloidal stability of aqueous suspensions of HAP as a function of solids loading and of the type and concentration of deflocculant has been studied. The interaction between particles and dispersant molecules was characterized. Adsorption measurements of the amount of dispersants on the particles surface, viscosity and electrophoretic measurements as a function of the dispersant concentration are correlated.Suspension parameters have been adjusted in order to obtain a high solids loading slurry with a plastic viscosity which will allow its use in colloidal processing. (C) 2002 Kluwer Academic Publishers.