通过乳液聚合制备了具有分子互穿网络结构的吸水材料(WIPN).应用RS600流变仪研究了吸水材料(WIPN)吸水后的黏弹性及吸水倍率对黏弹性的影响.动态研究表明,吸水材料的固体属性远大于液体属性,弹性模量G＇的数量级为104Pa,而黏性模量G″仅在102～103Pa之间;吸水倍率升高,由于交联分子链的弹性减弱,G＇、G″均降低;随温度升高,G＇平缓降低,G″出现上升拐点,吸水倍率越高,拐点出现得越晚,说明在较高吸水倍率下,聚合物分子链处于紧绷状态,需要较高的能量才能发生应变.稳态蠕变恢复研究表明,材料弹性好,蠕变阶段不易变形,恢复能力强;吸水倍率越高,变形能力越强,残余应变越大.
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