Colloid and surface properties of clay suspensions. I. Laponite CP
Colloid and surface properties of clay suspensions. I. Laponite CP
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DOI：
10.1016/0021-9797(74)90185-4
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发表时间：
1974-09
影响因子：
9.9
通讯作者：
R. Perkins;R. Brace;E. Matijević
中科院分区：
文献类型：
--
作者：
R. Perkins;R. Brace;E. Matijević
本文详细研究了锂皂石CP溶胶在锂、钠、钾、铵、镁、钙、钡、镧的氯化物和十六烷基三甲基溴化铵（C16TAB）存在下在较宽pH范围内的稳定性。凝结过程之后是毛细管抽吸时间（c.s.t.）和浊度（瑞利比，R.R.）在高电解质浓度下，毛细管抽吸法显示最大值和最小值，表明随着添加的电解质的浓度变化，絮凝溶胶的不同物理性质。没有这样的变化可以检测到浊度measurement.An尝试，这种粘土的稳定性数据与其他表面化学性质，如电泳迁移率。
Stability of a Laponite CP sol in the presence of the chlorides of lithium, sodium, potassium, ammonium, magnesium, calcium, barium, lanthanum, and of hexadecyltrimethylammonium bromide (C16TAB) has been studied in detail over a wide pH range. The coagulation process was followed by capillary suction time (c.s.t.) and turbidity (Rayleigh Ratio, R.R.) measurements.At high electrolyte concentrations, the capillary suction method revealed maxima and minima, indicating different physical properties of the flocculated sol as the concentration of the added electrolyte was varied. No such variations could be detected by turbidity measurements.An attempt was made to relate the stability data of this clay to other surface chemical properties such as the electrophoretic mobility.