资源描述：
《Decomposition kinetics study of AlOOH coated calcium carbonate.pdf》由会员上传分享，免费在线阅读，更多相关内容在学术论文-天天文库。
1、MaterialsChemistryandPhysics115(2009)418–422ContentslistsavailableatScienceDirectMaterialsChemistryandPhysicsjournalhomepage:www.elsevier.com/locate/matchemphysDecompositionkineticsstudyofAlOOHcoatedcalciumcarbonateDalaiJina,∗,XiaojingYua,LinhaiYueb,∗∗,L
2、inaWangcaCenterofMaterialsEngineering,ZhejiangSci-TechUniversity,Hangzhou310018,PRChinabDepartmentofChemistry,ZhejiangUniversity,Hangzhou310027,PRChinacKeyLaboratoryofAdvancedTextileMaterialsandManufacturingTechnology,MinistryofEducation,ZhejiangSci-Tech
3、University,Hangzhou310018,PRChinaarticleinfoabstractArticlehistory:AlOOHcoatedcalciumcarbonatewassynthesizedbyatwo-stepchemicalsolutionreaction.ThephaseReceived6September2008andmicrostructureanalysiswerecarriedoutbyX-raydiffractionandscanningelectronmicr
4、oscopy.Non-ReceivedinrevisedformisothermaldecompositionkineticsoftheAlOOHcoatedcalciumcarbonatehasbeeninvestigatedonthe14November2008basisoftheTG–DTAanalysis.Themodel-freeandmodelfittingapproacheswereappliedtothedataforAccepted14December2008non-isothermal
5、decompositionkineticsofAlOOHsurface-coatedcalciumcarbonateaswellastherefer-ence.Master-plotmethodwasusedtodeterminethedecompositionmechanismsbasedonthekineticKeywords:parameterEaachievedbymodel-freeKissingerequation.ThereferencesampledecomposedaccordingC
6、alciumcarbonatetothecontractingareamechanismR2andtheAlOOHsurface-coatedcalciumcarbonatedecomposedCoatingsTG–DTAaccordingtoone-dimensionalmechanismD1.ThekineticparametersEaverifiedbybothintegralmethodanddifferentialmethodshowedabout90kJmol−1increaseinthede
7、compositionprocessafterbeingDecompositionkineticscoated.Thisispossiblyduetotheas-shellstructureofsurfaceAlOOH,whichhindersthediffusionofthedissociatedCO2intotheouteratmosphere.©2008ElsevierB.V.Allrightsreserved.1.Introductioneters[11–18].Someimprovements
8、onthetheory,calculationanddatatreatingtechniqueshavebeensubsequentlyreported.Master-Calciumcarbonateisoneofthemostwidelyusedfillersutilizedplotmethod[19]isapopularlyusedmethodofdatatreatingfortheinfieldsasdiverseasrubber,pla
