鎳和碳纖維復(fù)合方案

1、鎳和碳纖維復(fù)合方案鎳和碳纖維復(fù)合方案鎳和碳纖維復(fù)合方案四氧化三鐵和碳纖維復(fù)合方案1.NiCF:碳纖維粉碎用丙酮洗掉表面殘余物蒸餾水洗凈120度下烘4小時(shí)；為了增強(qiáng)碳纖維與包覆物間的界面結(jié)合力，將碳纖維用硝酸浸泡4小時(shí)，最后用蒸餾水徹底洗干凈；碳纖維的活化：室溫下超聲震動(dòng)：150mL20gLSnCl22H2O40mLLHClf75minthenactivatedbyanactivationsolution(150mL0.25gLPdCl2

2、2.5mLLHCl)f75min。然后在堿性溶液中沉積鎳2.2.1.PretreatmentofCFFGTheCFwascomminutedthesurfaceresidualsizingmaterialswereremovedbyacetone.ThentheCFwasrinsedwithdistilledwaterdriedat120?Cf4h.ToenhancetheinterfacialadhesionbetweentheCF(

3、FG)thecoating0.3gCF(FG)wasimmersedinnitricacidf4hwashedthoughlywithdistilledwater.SequentiallyatwosteptreatmentwasusedtofacilitateunifmactivationthroughouttheentiresurfaceoftheCF(FG)withultrasonicvibrationatroomtemperatu

4、re:theCF(FG)wassensitizedbyasensitizationsolution(150mL20gLSnCl22H2O40mLLHCl)f75minthenactivatedbyanactivationsolution(150mL0.25gLPdCl22.5mLLHCl)f75min.2.2.2.PreparationofNCFNFGThepretreatedCF(FG)wasdippedinanalkalinebat

5、htodepositnickel.Thebathsolution(150mLchitosanGOx.Themagicenzymematerialwaswashedwithwaterimmersedin50mMphosphatebuffer(pH7.4)at4?CovernighttoremovethereagentstheexcessnonimmobilizedGOxfromthecomposite.Theobtainedmagicbi

6、osensingcompositeCNTFe3O4CTSGOxwasdispersedin10mLof50mMphosphatebuffer(pH7.4)waskeptina4?Crefrigeratffutureuse.(Fe3O4CF)5.Ironnitrate[Fe(NO3)39H2O]usedasastartingmaterialwasdissolvedinaquoussolutiontofm54mlof0.6Msolution

7、.Then0.2gacidtreatedMWNTswasaddedintothesolutionthenthesuspensionwasultrasonicatedf5min2.5MammoniasolutionwaswisedintotheabovemixedsolutionwithvigousstirringuntilthefinalpHofthesuspensionreachedabove9.Theprecipitatewasfi

8、lteredrinsedwithanhydrousethanolthendriedat80?Cf24h.Thesamplewassubsequentlycalcinatedat300?Cf2h.TheobtainedpowderswereloadedintoaquartzboatheatedinflowingNH3(1Lmin?1)at400500?Cf4hinatubefurnacetoobtainFe3O4CNTsFe2NCNTsc