環(huán)氧樹脂-凹凸棒土復(fù)合材料的制備及性能研究.pdf

1、天津大學(xué)碩士學(xué)位論文環(huán)氧樹脂凹凸棒土復(fù)合材料的制備及性能研究姓名：康文韜申請學(xué)位級別：碩士專業(yè)：材料學(xué)指導(dǎo)教師：沈?qū)幭?0021201ABSTACTInthispaperepoxymsin／attapulgitecompositeswerepreparedwitllepoxyresin(E一51)，thediglycidyletherofbisphenolA(EP)，aspolymericmatrixandtheattapulgite(

2、AT)asinorganiccomponentsFirstly，afterpurifiedandtreated、^，imdenseNaCIsolution，theattapulgitewasmodifiedwithhexadecatrimethylammoniumchromide(HDTMAB)andcharacterizedwithFT—IR，XRDandTGAWiththeultrasonicwave，dispersioncapab

3、ilitiesandstabilitiesoftheorganicattapulgite(OAT)wereinvestigatedTheresultsindicatethatitisfeasibleandeffectibletotreattheattupulgitewitllHDTMAB；theultrasoundpower(P)hasagreateffectonthedispersion，thestatusofP400Wisbette

4、rthanthatofP=200Wwhilethedispersiontime(t)shouldbcchoseproporlyAfterdispersed，thecompositesystemisstabileanduniformSecondlyepoxyresin／attapulgitecompositeswerepreparedbymeaalSofsolutionblending，ultrasonicwavedispersion，p

5、ouringandsolidifyingChoosingdispersionconditionsandcharacterizingthecompositeswithESEM，TEM，AFM，impactandbendingtestswerecarriedoutThecuringdynamicsofthecompositesystemsandthermaldecompositionkineticsofthecompositeswerest

6、udiedwithDSCandTGArespectively，TheresultsshowthatselectingtheultrasoundP400Wandt=5min，theattapulgitedispersionisbasicallyuhiforminthecomposites，presentingdisorderedstatus、^，itllafewagglomerations；whenattapulgitecontentac

7、hieves3wt％impactstrength，flexuralstrengthandflexuralmodulusoftheEP／OATandEP／OAT／KH560compositesareimprovedeffectivelywhichprovethattheattapulgitecanenhancethestrengthandtoughnesssimultaneously；organicattapulgitesandsalin

8、ecouplingagent’SintroductionsalittleinfluencethecuringbehaviorofthecompositesystemsandlightlyimprovethestabilitiesofthecompositesKeywords：epoxyresin，attapulgite，compositesdispersion，curingdynamics，thermaldecomposffionkin