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1、-StudyonHydroxyapatiteCoatingonCarbonFibers
ByElectrodepositionandGlassFiberReinforced
UnsaturatedPolyesterMicrocellularCompositesABSTRACTThissubject,“carbonfiber/in-situnanoHAcoatingreinforceHAcomposite‖and―glassfiberreinforcemicroporousunsaturatedpolyestercomposite‖,st
2、emsfromtheitem―TheProjectSupportedbyNaturalScienceBasicResearchPlaninShaanxiProvinceofChina（ProgramNo.2014JM6233,2010JM6004）‖,thecontentinthispaperispartofthesubject。Carbonfiber（CF）hasno-creep、excellentfatigueresistance、smallthermalexpansioncoefficient、highelasticmodulus
3、,duetoitsbioinertandnon-toxi,itcanexitinhumanbodysteadilyforlongtime,asaperfectreinforcingmaterial,CFhasnotonlygoodhisto-compatibilityandnorejectionreactiontobody,butalsooriginalboneinducedability,relyingontheadvantagesoftheabove,CFisalreadywidelyusedinmedical,lifescienc
4、eandotherfields。Hydroxyapatite（HA）isthemajorinorganiccomponentsofnaturalbonewhichprocessesgoodbiocompatibilityandbiologicalactivity,however,thebrittlenessofHAlimitsitsuses。InordertoimprovethebrittlenessofHA,weusedCFasreinforcerandpreparedcarbonfiber/in-situnanoHAcoatingr
5、einforceHAcomposite。DuetothegreatmechanicalpropertiesandbiocompatibilityofCF,thecompositewillhavegreatapplicationprospectsandvalue。ButthebigdifferentofthermalexpansioncoefficientbetweenHAandCFwillaffectthemechanicalpropertiesofcomposite,therefore,itisnecessarytohavetheCF
6、surfacewithsurfacetreatmenttoimprovetheinterfacebondingofCFandHA。Theresearchcontentandconclusionsofthispartarelistedasfollows：（1）CalciumphosphatecoatingwaspreparedonPAN-basedcarbonfibersbyusingelectrochemicaldeposition,thepreparedHAcoatingswerecharacterizedbyscanningelec
7、tronmicroscope（SEM）,energydispersivespectroscopy（EDS）andpolarizationcurvestostudyonhowtoprepareHAcoatingwithexcellentcrystalstructure．Inthispaper,processparameterslikecurrentdensity,depositiontimeandpatternsetc.arecontrolledanddeterminedtoresearchthegeneralregularitiesof
8、preparingHAPcoatings．TheresearchshowsIII----thatvoltageandcurrentvaluesaffectthecomponentsandstructures
