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1、StudyonHydroxyapatiteCoatingonCarbonFibersByElectrodepositionandGlassFiberReinforcedUnsaturatedPolyesterMicrocellularCompositesABSTRACTThissubject,“carbonfiber/in-situnanoHAcoatingreinforceHAcomposite‖and―glassfiberreinforcemicroporousunsaturatedpolyestercomposite‖,ste
2、msfromtheitem―TheProjectSupportedbyNaturalScienceBasicResearchPlaninShaanxiProvinceofChina（ProgramNo.2014JM6233,2010JM6004）‖,thecontentinthispaperispartofthesubject。Carbonfiber（CF）hasno-creep、excellentfatigueresistance、smallthermalexpansioncoefficient、highelasticmodulu
3、s,duetoitsbioinertandnon-toxi,itcanexitinhumanbodysteadilyforlongtime,asaperfectreinforcingmaterial,CFhasnotonlygoodhisto-compatibilityandnorejectionreactiontobody,butalsooriginalboneinducedability,relyingontheadvantagesoftheabove,CFisalreadywidelyusedinmedical,lifesci
4、enceandotherfields。Hydroxyapatite（HA）isthemajorinorganiccomponentsofnaturalbonewhichprocessesgoodbiocompatibilityandbiologicalactivity,however,thebrittlenessofHAlimitsitsuses。InordertoimprovethebrittlenessofHA,weusedCFasreinforcerandpreparedcarbonfiber/in-situnanoHAcoa
5、tingreinforceHAcomposite。DuetothegreatmechanicalpropertiesandbiocompatibilityofCF,thecompositewillhavegreatapplicationprospectsandvalue。ButthebigdifferentofthermalexpansioncoefficientbetweenHAandCFwillaffectthemechanicalpropertiesofcomposite,therefore,itisnecessarytoha
6、vetheCFsurfacewithsurfacetreatmenttoimprovetheinterfacebondingofCFandHA。Theresearchcontentandconclusionsofthispartarelistedasfollows：（1）CalciumphosphatecoatingwaspreparedonPAN-basedcarbonfibersbyusingelectrochemicaldeposition,thepreparedHAcoatingswerecharacterizedbysca
7、nningelectronmicroscope（SEM）,energydispersivespectroscopy（EDS）andpolarizationcurvestostudyonhowtoprepareHAcoatingwithexcellentcrystalstructure．Inthispaper,processparameterslikecurrentdensity,depositiontimeandpatternsetc.arecontrolledanddeterminedtoresearchthegeneralreg
8、ularitiesofpreparingHAPcoatings．TheresearchshowsIIIthatvoltageandcurrentvaluesaffectthecomponentsandstructuresoftheco
