Keywords water-swellable rubber;volume expansion material;plasticized polyvinyl chloride;elstomer;super water-absorbent resin;starch graft polyacrylate sodium;

• 吸水膨胀材料;增塑聚氯乙烯;弹性体;高吸水性树脂;淀粉接枝聚丙烯酸钠;