改性F-51水性環(huán)氧體系制備、固化及性能研究.pdf

1、西北工業(yè)大學碩士學位論文改性F51水性環(huán)氧體系制備、固化及性能研究姓名：劉朝陽申請學位級別：碩士專業(yè)：材料學指導教師：舒武炳20050301西北工業(yè)大學碩士學位論文AbstactInthispaperprepatrationwaterborneepoxyresintheconditionofthesyntheticreactionwasdeterminedstudycuringidentityandapplytocompositemat

2、erial.Accordingtothemoleculedesignakindofmodifiedresinwhichhavebothepoxygroupsandhydrophilicgroupswassynthesizedfrompolyfunctionalgroupnovolacepoxyresin(F51)anddiethanolamine.Afterneutralizedbyacidthemodifiedepoxyresinco

3、ulddispersedintowaterandawaterbomeepoxyresinsystemwithexcellentstabilitywasproduced.Theeffectsofthereactiontemperatureandreactiontimewasstudiedandtheoptimumconditionofthesyntheticreactionwasdetermined.Duringtheprocessoft

4、heexperimentsinordertomakethemodifiedresingotagoodbalanceofreactivityandhydrophilicitytherelativelycontentofepoxygroupsandhydrophilicgroupsinthemodifiedresinwasadjustedbychangingthedosageofdiethanolamine.Thecuringperform

5、anceofthewaterbomeepoxyresinsystemwasstudied.ItwasshowedthatmanyepoxycuringagentswhichbedissolvableinwatersuchasdicyandiamideimidazoleTAcanbeusedinthesystememphaseslycomparesolvation.reactionandcoatingperformance.Especia

6、lly，thecuringsystemwhichwasmadefromthewaterbornesystemanddicyandiamidehadalongpotlifethatmorethansixmonthsalowerstartingcuringtemperaturewhichwas800C.TheoptimumcuringtechnicswasdeterminedbyDSCandcrosslinkingexperiments.T

7、heTgofthecuredproductwas73.3CDuringtheprocessoftheexperimentsinordertomakethemodifiedresingotagoodcuringperformancethemodificationresinwasaddtoE51determinedthedosageofE51is50%adoptedintermislyaddingwatermodifiedresinE51w