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通过流变参数、电泳淌度和ｐＨ值的测定，研究了ＮａＣｌ、ＭｇＣｌ２、Ｎａ２ＳＯ４等电解质和阳离子表面活性剂（十六烷基三甲基溴化铵）对铝镁混合金属氢氧化物（ＭＭＨ）／钠土（Ｍｔ）悬浮体胶体性能的影响．发现所研究的电解质和表面活性剂都能使ＭＭＨ／Ｍｔ悬浮体的Ｂｉｎｇｈａｍ屈服值降低，但不同处理剂影响ｐＨ值和滤失量的变化趋势却不同．认为电解质中的阳离子以影响粘土颗粒间的缔合为主，而阴离子以影响ＭＭＨ的荷电性能为主，前者使滤失量上升，ｐＨ值下降；后者使滤失量下降，ｐＨ值上升．电解质对ＭＭＨ／Ｍｔ悬浮体滤失量和ｐＨ值的影响取决于二者相对能力的大小．阳离子表面活性剂由于在粘土上吸附后不仅影响颗粒之间的缔合，也能使其润湿性反转，导致ＭＭＨ／Ｍｔ悬浮体的滤失量和Ｂｉｎｇｈａｍ屈服值的变化幅度明显高于无机电解质．
The effects of electrolyte such as NaCl, MgCl2, Na2SO4 and cationic surfactant (cetyltrimethylammonium bromide) on the microstructure of Al-Mg mixed metal hydroxide (MMH) were studied by rheological parameters, electrophoretic mobility and pH value. ) / Sodium earth (Mt) suspension colloidal properties. It was found that both the electrolytes and the surfactants studied reduced the Bingham yield of the MMH / Mt suspension, but varied with the pH of the different treatments and the change of the filtrate loss. It is considered that the cation in the electrolyte mainly affects the association between the clay particles, while the anion mainly affects the charging performance of the MMH. The former increases the filtrate loss and the pH value, while the latter decreases the filtrate loss and the pH value . The effect of electrolyte on the fluid loss and pH of the MMH / Mt suspension depends on the relative capacities of the two. Cationic surfactants, as they adsorbed on clay not only affected the association between the particles, but also reversed their wettability, leading to significantly higher variation of the filtrate loss and Bingham yield values for the MMH / Mt suspension than for the inorganic Electrolyte.