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  • 简介:Evaporationofsessilewaterdropletonpolydimethylsiloxane(PDMS)surfaceswiththreedi?erentcuringratios(5:1,10:1,and20:1)wasexperimentallyinvestigatedinthispaper.Weshowthattheconstantcontactradius(CCR)evaporationonsurfacewithhighcuringratiolastslongerthanthatwithlowcuringratio.WealsomeasuredYoung’smoduliofPDMSfilmsbyusingatomicforcemicroscopy(AFM)andsimulatedsurfacedeformationofPDMSfilmsinducedbysessilewaterdroplet.WithincreasingcuringratioofPDMSfilm,Young’smodulusofPDMSfilmisgettinglower,andthentherewillbelargersurfacedeformationandmoreelasticstoredenergy.Sincesuchenergyactsasabarriertokeepthethree-phasecontactlinepinned,thusitwillresultinlongerCCRevaporationonPDMSsurfacewithhighercuringratio.

  • 标签: PDMS 表面变形 蒸发 水滴 实验 聚二甲基硅氧烷