宁夏泰和高性能对位芳纶实现规模化生产.pdfVIP免费

14合成纤维工业2023年第46卷化产物[J].大学化学,2022,37(3)：1-5,[18]KHANH,KAURJ,NAEBEM,etal.Continuous,pilot-scaleproductionofcarbonfiberfromatextilegradePANpolymer[J].MaterialsTodayCommunications,2022,31:103231.[19]王耀村，段建国,卢韵静，等.水刺技术对滤料用再生涤纶毯坯结构与性能的影响[J].合成纤维工业，2018,41(4)：38-42.[20]TAKAHAGIT,SHIMADAI,FUKAHARAM,etal.XPSstudiesonthechemicalstructureofthestabilizedpolyacryloni­trilefiberinthecarbonfiberproductionprocess[J].JournalofPolymerSciencePartA：PolymerChemistryEdition,1986,24(11)：3101-3107.[21]OUYANGQ,CHENGL,WANGHJ,etal.Mechanismandkineticsofthestabilizationreactionsofitaconicacid-modifiedpolyacrylonitrile[J].PolymerDegradationandStability,2008,93(8):1415-1421.SurfacemodificationandthermalcyclizationbehavioroflargetowacrylicfiberGUOMei1'2,ZHONGJunjun2,QIANXin2,ZHANGYonggang2,GONGHaoting1,2,LIChunjie1,2(1.CollegeofScienceandEducationIntegration,NingboUniversity,Ningbo315211；2.NationalEngineeringLaboratoryofCarbonFiberPreparationTechnology,NingboInstituteofMaterialsTechnologyandEngineering,ChineseAcademyofSciences,Ningbo315201)Abstract:Inordertoreducetheproductioncostofpolyacrylonitrile(PAN)-basedcarbonfiber,alow-costlargetowacrylicfi­berusedastheprecursorwasexposedtosurfacemodificationwiththeactivehydroxylgroupoftannicacidtoproducetarrnicacidmodifiedlargetowacrylicpreoxidizedfiber.ThethermalcyclizationbehavioroflargetowPANprecursorwasstudiedduringtheperoxidationstage.Theresultsshowedthatthestartingtemperatureofcyclizationreactionoflargetowacrylicprecursorwasre­ducedfrom275Tto200°C,andtheoriginaldifficultreactionoffreeradicalpolymerizationwasconvertedintorelativelysimpleionicpolymerizationafterbeingtreatedwithtannicacidsolution；theoxygenelementcontentofmodifiedlargetowacrylicfiberin­creasedfrom15.03%to27.43%afterpre-oxidation,andtannicacidmodificationsignificantlypromotedtheoxidationreactionoflargetowacrylicfiber；andthebulkdensityofthemodifiedlargetowacrylicfiberreached1.3746g/cm3afterpre-oxidation,whichmetthefi...