電沉積法制備金屬鋅泡沫材料.pdf

1、中南大學(xué)碩士學(xué)位論文電沉積法制備金屬鋅泡沫材料姓名：田慶華申請學(xué)位級別：碩士專業(yè)：有色金屬冶金指導(dǎo)教師：郭學(xué)益20070518ABSTRACTFoammetal，asnewfunctionalmaterialswithuniquecharacteristicsandstructure，hasabroadpotentialapplicationinmanyfieldssuchasimpactenergyabsorbersilencerfi

2、lterflamearresterheater，heatexchangerconstructionalmaterials，catalyst，catalystcarrierporouselectrode，electromagneticshieldingmaterialsandelectrodematerialsofsecondarybaReriesInvirtueoftheexcellentthreedimensionalreticula

3、tedstructure，highporosityhighspecificsurfaceareauniformqualityandgoodactivityfoamzincisapotentialsubstituteofzincpowderasanewkindofidealmaterialforelectrodeofzincairbaaeries，whichhasbeenwidelyusedinmanyfieldsBasedonthere

4、viewofconsiderabletechnicalliteraturesandaseriesofexperiments，theporouszincfoamWaspreparedbytheprocessesofdegreasing，roughening，conductivetreatmentandelectrodepositionusingthepolyurethanefoamassubstrateTheorganicsolventd

5、egreasingandalkalinedegreasingwerecombinedasthedegreasingprocessfirstlyandthentherougheningeffectsofKMn04andH2S04werestudiedTheresultshowsthattheoptimumrougheningeffectCanbeobtainedbyrougheningfor5minat45℃andthechemicald

6、epositswithgoodCanadhesiontothepolyurethanefoamCanbeobtainedontheframeworkofthepolyurethanefoamElectro—depositiononpolymerfoamrequireselectricalconductivityoftheinitialpolymerfoamTwomethodswereutilizedinthiswork：firstlyc

7、oatingthepolymerfoam、Ⅳimelectricallyconductiveslurry；secondarilyimmersingthefoamintoanelectrolessplatingsolmionThesaltbasedcolloidpalladiumWasusedforthesensitizationandactivationoffoamsurface，andtheoptimumprescriptionand

8、technologicalconditionsofelectrolessplatingweredeterminedBasedonHullCelltestsulfatesystemwasdeterminedastheelectroplatingsolutionsystembythecomparisonofthreedifferentsystemsTheexperimentswerecarriedouttoexploretheeffects