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IntroductionInourdailylife ,cotton ,paperandspongearecommonlyusedtoabsorbwater.Thesematerialsabsorbonlyafewtimestheirweightofwaterandhaveratherpoorpropertieswithrespecttowaterretention .However,sometypesofpolymersandcopoly mersdofunctionashighwaterabsorb… 相似文献
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