研究了阳离子淀粉(CS)/Mg-Al类水滑石(HTlc)悬浮体系的粘度行为.分别考察了pH值对CS水溶液粘度的影响,考察了Mg-AlHTlc与CS固体质量比值(R)及体系pH值对CS/Mg-Al-HTlc悬浮体粘度的影响.结果发现,CS水溶液在pH值为3～4时的粘度最大,强酸强碱条件下粘度急剧降低;当pH值为8.68～8.80时,CS/Mg-Al-HTlc悬浮体的粘度随Mg-Al-HTlc的加入(R值的增加)先增加后降低,出现一极值.随着R值的增大,CS/Mg-Al-HTlc体系出现最大粘度值所对应的pH值也增大.低pH值时,R值小的CS/Mg-Al-HTlc体系粘度最大;高pH值时,R值大的CS/Mg-Al-HTlc体系粘度最大.
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