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1、桂林理工大學(xué)碩士學(xué)位論文有機(jī)硅樹(shù)脂共混改性酚醛塑料的研究姓名：王建申請(qǐng)學(xué)位級(jí)別：碩士專業(yè)：高分子化學(xué)與物理指導(dǎo)教師：呂建20100401桂林理工大學(xué)碩士學(xué)位論文Abstract111ispaperhasimprovedtheheatresistanceofthebakelitethroughthecuringofsiliconeresininthephenolicresinandtheinterpenetratingnetworkstr

2、uctureThecapacityofblendingsiliconeresinandphenolicresinwasresearchedbymeansofTQHeatDistortionTemperature，DMAandsoOILMeanwhilethemainperformanceofmodifiedbakeliteinheatresistance，mechanicalpropertiestheologyabsorbentande

3、lectricalpropertiesandthecuringsystemweretestedWefoundouttheeffectofthecuringagentcontentonthepropertiesofmodifiedBakeliteanddeterminedthecuringprocessparametersbyDSCAswell笛thephenolicmoldingcompoundwasprocessedbytheheat

4、resistantandreinforcingglassfiberandthemodifiedphenolicresinaccordingtothekeyperformanceindicatorsofcommutatorUltimatelyweusedthemodifiedresininfrictionmaterialsandconcluded叢fellows：(1)theresultsofthermalperformancetest：

5、theheatdistortiontemperatureofPFSI15％plasticreachedto215℃andwasincreasedbynearly20“12Between350℃and385℃theweightlessnessofplasticw豳only2680／0butthepurephenolicresinwas659％TIleresultsofdynamicmechanicaltestshowedthat：thes

6、toragemodulusofplasticwasdecreasedwithaddingsiliconeresinyethasliuleimpactontheliquidityofplasticBesidesthegoodcapacitybetweensiliconeresinandphenolicresinwasseenfrompeakpositionpeakheightpeal【widthofmechanicalloss舔well齬

7、thechangesindynamicmodulusexistingineachcomponentMeanwhilethetestresultsshowedthattheelectricalpropertiesandwaterabsorptionofplasticwereimprovedbutthemechanicalpropertieswe陀weakened(2)wtIlthegrowingcontentofcuringage鵬the

8、glasstransitiontemperatureandheatdistortiontemperatureofcompositionhasraisedwhenthecontentofcuringagentwas10％theglasstransitiontemperatureofcompositionwas224“C；meanwhilethestorage。modulusandtherigidwereenhancedwiththeinc

9、reasingcontentofcuringagentsametotheinitialglasstransitiontemperatureThetendencyoftanSlosspeakmovingtotemperaturerangeprovedtheelevationofTginBakeliteMoreovertheimpactstrengthandbendingstrengthofplastichasboostedtodiffer

10、entdegreesuchasthemaximumvalueofimpactstrengthwas669KJcmzwhentheH舳contentwas12％andthebendingstrengthwas939MPawhen14‰1rI嗆curingprocessparametersofBakelitewith12％curingagentcontentwere：geltemperaturewas145“(2curingtemperat

11、urewas156℃andreprocessingtemperaturewas173℃(3)Theresearchofdifferentcontentofflame—rerardantandglassfiberinplastichasdemonstratedthattheflameretardantleveIofplasticwasuptoFVOwhenthecontentofglassfiberwas50％，t11elinearexp

12、ansioncoefficientwas644kJ／m2whenthecontentofglassfiberreachedthemaximumvalueof60％morethantheaveragevaluefromloomtemperatureto200“12andthebendingstrengthwasuptothemaximumvalueof125MPawhenthecontentofglassfiberwas50％Theinc

13、reaseofglassfibercontenthaslittleeffectonelectricalproperties，waterabsorptionanddensitybutimprovedthedimensionalstability(4)Thefrictioncoe硒cientofmodifiedphenolicfrictionmaterialwasreducedtoalesserextentandincreasedto052

14、28x10“cm3／Nmhigherthan250l℃oftemperatureInadditiontheanalysisofSEMtestifiedthatthefrictionsurfaceofthemodifiedmaterialwasrelativelyflatbutinlcoalwasadhesiveandthefrictionwasstableKeywords：phenolicresin；siliconeresin；blen

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