石墨增强橡胶复合材料的制备、结构与性能.研究 (1)

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1、北京化工大学硕士论文coInpoundingmethodwereiIⅣestigated．EffectofdifrerentcompoundingmethodsandtheloadinglevelofeXpandedgraphite(EG)oncu订ngcharact嘶sticsandmechanicalpropemesofthe伊aphite／ACMcompositeswerestudied．Meanwhile，effectofdi虢rentsumLctantsonthepropeniesofthecomposit

2、eswasinVestigated．Mean、柚ile，inthispaper，wealsoexaminedtheinnuenceofsub】nicrometer-gr印hiteonmechanicalpropertiesandtrib0109icalpropeniesofsubnlicrometer-鲫hit舢RcompositeswhichweregetbythemechanicalcoInpoundingmethod．Atthesametime，compadngtotwodiffIerentmechallica

3、lcompoundingmethods(Coolronandhotroll)，efrectofdi虢rentdirectcompoundingmethodsondispersionofexpandedgr印hiteincompositesaswellasonthemechanicalpropertiesofcompositeswerestudies．FirstlMgraphite／ACMnanocompositewasresearched．Theresultsshowedmatitwasagoodmethodtoab

4、stainnanocompositebyatexcompoundingmethodbywhichthedispersionofgr印hitewasnanometerstate．Meanwhile，withthesame10adingofEGthepropertiesofcompositesf而mlatexcompoundingmethodwassuperiortothat自ommechanicalcoIllpOunding．Atthesametime，theresultsreVealedthatwithmeincre

5、aseofthecontentofEqthemechallicpropertyofthecompositesenhanced，andthetimeofsul如rationshortened．Besides，anotherconclusionwasmade丘．omtheexperimentswithdi矗’erentsurfIactantsthatwithmacromoleculesassurfactant，IVABSTCRATadeclilleofthecoInpositesmechallicalpropertyw弱

6、observed，me锄Ⅳhilesimilardispersionofthefillersystemwasmade，comparingtothatWitllanionicsu渤Ct珊．O也erwise，aconclusionwasmadef的mtheVariationsul如rationsystemthatcomparedtothesul触system，withTCYsyst锄，amaterialofbettermechanicalpropertieswasgot．Secondl弘submicrometer_gr印

7、mte／HNBRwereinVestigated．Theresultsshowedmatsubmicrometer-graphitewasea’ectiVetoreduce衔ctionanditwasfoundthatmodulusat1OO％elongatioⅡofVulcanizateincreased，thetensilest]rength，elongationatbreakand衔ctiondecreasedwiththeincreaseofsubmicrometer-grapllitecontent．Bes

8、ides，wearrateofthefilledHNBRdecreasedwhenthecontentofsubmicrometer-野apllitereached40plmFinany；meeffectofdi妇f℃；rentmechanicalcompoundingmethodsondispersionofexpandedgraphitei