以水溶液聚合法制备了坡缕石/聚丙烯酸(钠)(PAANa)高吸水复合材料,对复合材料的吸水溶胀性能进行了研究,并采用FTIR对复合材料进行表征.结果表明:10%坡缕石/PAANa复合材料吸蒸馏水和0.9 wt%盐水倍率分别达1666 g/g、115 g/g,较纯PAANa的724 g/g、58 g/g明显提高;坡缕石/PAANa复合材料具有优异的保水及反复吸水性能;坡缕石/PAANa的吸液倍率随电解质溶液离子强度的升高而降低,降低程度顺序为Al3+＞Ca2+＞Na+;坡缕石/PAANa复合材料与其他6种矿物/PAANa复合材料相比,吸液性能特别是吸蒸馏水及0.9 wt%盐水性能大幅提高.
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