第53卷第2期2023年2月Vol.53No.2Feb.2023·133·日用化学工业（中英文）ChinaSurfactantDetergent&CosmeticsReceived:April14,2022;Revised:January9,2023;Publishedonline:January17,2023.*Correspondingauthor.Tel.:+86-13636670154,E-mail:zhaosc@ecust.edu.cn.国家自然科学基金资助项目（21878089）DOI：10.3969/j.issn.1001-1803.2023.02.002PreparationofCa-SA/P（AM-AMPS）microsphereandtheirpropertiesYaniXuan1,FanTang2,TaoZhang2,LiqiZhuang1,ShichengZhao1,*（1.ShanghaiMultiphaseMaterialsLaboratory,SchoolofChemicalEngineering,EastChinaUniversityofScienceandTechnology,Shanghai200237,China;2.OilandGasTechnologyResearchInstitute,ChangqingOilfieldCompany,Xi’an,Shaanxi710014,China）Abstract:Polyacrylamideprofilecontrolagentshavetheproblemsofpoortemperatureresistanceandrapidswellingatroomtemperature.Calciumalginate/Polyacrylamide（Ca-SA/P（AM-AMPS））microsphereswerepreparedbycross-linkingCa2+withsodiumalginate（SA）onthesurfaceofmicrospherestoimprovetheirproperties.FT-IR,SEM,TEM,NanoSizerandZeta-potentialTesterwereusedtoanalyzethestructure,morphologyandpropertiesofthemicrospheres.TheresultsshowedthattheaverageparticlesizeofCa-SA/P（AM-AMPS）microspheresrangedfrom47nmto92nmatdifferentSAmassfraction.WhenthemassfractionofSAwas8%,theswellingpropertyofCa-SA/P（AM-AMPS）microsphereswasthebest.TheswellingpropertyofCa-SA/P（AM-AMPS）microsphereswas2.52timesat20℃,whichwas42%lowerthanthatofP（AM-AMPS）microspheres.At60℃,theswellingpropertyofCa-SA/P（AM-AMPS）microsphereswas3.35times,52%higherthanP（AM-AMPS）microspheres.TheresultsshowthatCa-SA/P（AM-AMPS）microspheresswellslowlyatroomtemperature,andswellquicklyathightemperaturewithalargerswelling,whichcanbettermatchtheinjectionprofilecontrolprocessandachieveefficientprofilecontrolandoildisplacement.Keywords:waterpluggingandprofilecontrol;polyacrylamide;calciumalginate;delayedswellingH2C+NH2AMPSP(AM-AMPS)Ca-SA/P(AM-AMPS)microsphereSchematicdiagramofCa-SA/P(AM-AMPS)microspheresynthesisrouteAMMBACa2+APS/SHSSAP(AM-AMPS)microsphere(Shell)Ca-SAgel(Core)O...
