耐候性太阳选择性吸收涂层的研究

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1、天津大学博士学位论文耐候性太阳选择性吸收涂层的研究姓名：黄群武申请学位级别：博士专业：环境化工指导教师：王一平20070501AbstractInrecentyears，theresearchandapplicationintheindustryofsolarspectrumselectiveabsorbingcoatingshavebeengivenmoreandmoreattention．Thisthesissummarizedtheirbasictypes，absorptionmechanisms，preparationmethods，i

2、n缸．oducedtheresearchworkandnewresultsathomeandabroad．Thenperdurablecoatingswerepreparedusingsolutiongrowthtechnique，whichissimple，cheapandlesspollution．FirstlV，modelwasselectedtocalculatetheporouscoatingsbycomparingthemodifieduniformitymonolayerwithheterogeneousfilm．Evenmodi

3、fiedwithMaxwell．GarnettheoryandBruggemantheory，theuniformitymonolayerwasnotsuittotheactualporouscoating．Whilethemodelofheterogeneousfilmfittheactualporouscoatingwell．Usingthelatermodel，theopticalperformanceofPbS／AI，PbS／CuandPbS／Nicoatingswerecalculated．ThePbS／CuandPbS／AIcoat

4、ingswerebetterthanPbS／Nicoating．Thentheopticalperformanceofmolybdenumblackcoatingwascalculatedwithuniformityfilmmodelforitscompactfabric．TheopticalperformanceofCuO／CuwascalculatedconsidertheeffectofCu20，andpureCuOcoatingwasbetterthantheimpurecoating．Secondl罗threekindsofcoati

5、ngswerepreparedusingsolutiongrowthtechnique．Thecoatingofleadsulphidewas．preparedbydissociatingthioureainanalkalinesolutioncontainingleadacetateonthebasematerialofcopper．Themolybdenumblackcoatingwaspreparedbydeoxidizing(NH4)6M07024inthesolutioncontainingNHnCIonthebasematerial

6、ofaluminiumandaluminiuma110v．Andthepurecoatingofcuprumoxidebyoxidatingcopperwithhypochloroussodiuminthealkalinesolution．Theoptimizedconditionwasstudiedconsideringreactiontemperature，reactiontime，pHofthesolution，concentrationofreactantandpretreatmentofthebasematerial．Thecoati

7、ngswereanalyzedbyXPS，SEM，UV：visible-nearinfraredlightspectrophotometerandFouriertransforminfraredlightspectrograph．Thedifferenceinsolarabsorptivitybetweenthecalculatedandmeasuredvaluesofthesecoatingswassmall．Finally,anadditionalTi02filmwasdepositedonthreecoatings，andtheperfo

8、rmance，suchasabsorptivity，temperature-fastacid。resistant，abraslonresistance