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简介:Polydimethylsiloxane(PDMS)rubberlatexwithtwosortsofsensitizers,trimethylolpropanetri-methacrylate(TMPTMA)anddiethyleneglycoldi-acrylate(DEGDA),wasirradiatedwithγ-raysandelectronbeamsinvariousconditions.TheradiationcrosslinkingreactionofPDMSoccursintheinnerphaseofthelatexandisrelativelyisolatedfromthewaterphase.Thereforetheoxygenandtheradicalsproducedbytheradiolysisreactionofwateralmosthavenoeffectonthecrosslinkingreactionofpolymer.TheexperimentaldatacorrespondwiththeCharlesby-Pinnerrelationshipinthemain.Thegelationdoses,degreeofcrosslinkinganddegradationaswellasGvaluesofcrosslinkingwerecalculated.Fromthem,thesensitizationcoefficientswerederivedtoofferaquantitativemeasurementoftheenhancingeffectofsensitizerontheradiationcrosslinking.
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.
简介:Wedescribeanoveltechnique,lowsurfaceenergyGasExpansionMolding(GEM),tofabricatemicrobubblearraysinpolydimethylsiloxane(PDMS)whichareincorporatedintoparallelplateflowchambersandtestedincellsortingandmicrocellcultureapplications.Thisarchitectureconfersseveraloperationaladvantagesthatdistinguishthistechnologyapproachfromcurrentlyusedmethods.HereinwedescribetheGEMprocessandtheparametersthatareusedtocontrolmicrobubbleformationandaVacuum-AssistedCoating(VAC)processdevelopedtoselectivelyandspatiallyalterthePDMSsurfacechemistryinthewellsandonthemicrochannelsurface.WedescriberesultsfrommicroflowimagevisualizationstudiesconductedtoinvestigatefluidstreamsaboveandwithinmicrobubblewellsandconcludewithadiscussionofcellculturestudiesinPDMS.
简介:摘要针对公司煤气发电三维设计的热力管道设计工作中的保温设计需要花费大量时间进行人工设置,且不能精准保证设置的保温厚度满足设计要求,采用AVEVA公司PDMS软件自带PML语言进行二次开发,利用保温厚度与管道设计温度及管径等存在强逻辑关系来研究在管道布置设计完成后统一批量进行保温厚度设置,提高工作效率。
简介:PDMS是三维设计软件中应用较普遍并且比较成熟的设计软件之一,文章探讨了PDMS在化工工程项目管理中的应用,并对其情景作了展望。
简介:摘要:近年来,随着国内第三代核电逐步批复建设,核电建设市场竞争日趋激烈。在核岛安装中,特别是对于固定总价项目,施工单位需采用新技术来降本增效,提高项目建设精益化管理水平。本文将主要介绍在核岛临时特殊装置安装中,如何通过 PDMS从设计、材料管理、施工等方面对临时特殊装置施工进行全过程精益化建造管理,以降低成本,提高效率。
简介:摘要:PDMS是一种三维建模软件,广泛用于化工行业中的设计、模拟和分析工作。在设计过程中,PDMS提供了丰富的元素库和工具,使得工程师能够快速构建三维模型,并进行各个视图的可视化操作,极大地提高了设计效率。本文通过对PDMS软件在化工行业应用的文献综述,总结了其特点和优势,并提出了其未来发展方向。