聚丙烯熔喷驻极过滤材料表面静电势的研究-周晨

JournalofFiltration&Separation2011Vol.21No.1、、、。。。11.112.28g/m20.19mm。1.20.25m2m1。。1.31.3.1(a)ElectrostaticVoltmeterModel5412mm12cm×12cm。b2。SlQ=CV=ε0SVl1Ri=dQdtε0SVl2·dldt22011-02-08.1.201620:。。TS131.9A1005-8265201101-0016-04116··JournalofFiltration&Separation2011Vol.21No.12dldt。iV。V。cl2mm3。V=03Qi=Sσ=ε0S-σL/ε0εl+L/ε3Ri′=dQidt=-εlεl+L·ε0SVSl2·dldt4l＜＜Li′=-ε0SVSl2·dldt535Vs=V[1]。1.3.2GB2626-2006Nacl(MMD)0.3μm(CMD)0.075μm。η=1-K(1-A2-A0φ2A1)×100%6η-(%)K-A1-A2-A0-φ-。24“0”。4123。Maxwell-Wagner[2]。VRε0VRε0ε0εLi4002000-200-400-600/V01020304050/s2000-200-400-600/V010203040/sllSS17··JournalofFiltration&Separation2011Vol.21No.11[3]、。257%。534αβγ。βαγ。βαγ[4]。Maxwell-Wagner。。3[5]。13944V。PeterP.Tsai[6]。。6。7。。8。7[7]。167/V/V/V/V/%171-204275-12.8724.202246-422668-13.8884.503185-798944-20.5285.414366-258624-28.2088.825207-490697-33.7489.6089.60%88.82%85.41%84.50%24.20%/%-15-20-25-30-35/V18··JournalofFiltration&Separation2011Vol.21No.18σ=Vεd7Vεd。4123。[1].、.[2]..,2010430-431.[3]FUM,DISSADOL.A,CHENG,etal,SpacechargeformationanditsmodifiedelectricfieldunderappliedvoltagereversalandTemper-aturegradientinXLPEcable[J],IEEETransDEI,2008,15(3):851-860.[4],,.[J]..1987,2(1):15-19.[5],,.[J].,2005(5):32-36.[6]PeterP.Tsai;LarryC.Wadsworth,bothofKnoxville,Tenn.Methodandapparatusfortheelectrostaticchargingofaweborfilm:U－nitedStates,5401466.Mar.28,1995.[7],,,.[J].,1989(4):56-60.StudyontheSurfaceElectrostaticPotentialofElectretMelt-blowMaterialZHOUChen,JINXiang-yuTheDevelopmentCentreofIndustrialNon-wovenMaterial,Shanghai201620,China)AbstractThemelt-blownmaterialwereprocessedwithexternalcoronaelectret,thentestthefiltrationefficiencyandthesurfaceelectro－staticpotential,Analyzedthedistributionofpositiveandnegativechargeofthesurfaceandtherelationshipbetweenaveragesurfaceelec－trostaticpotentialandfiltrationefficiencybymeasuringthesurfaceelectrostaticpotentialofelectretmelt-blowmartial.Theresultsshowthatchargedistributeatrandomandtheaveragesurfaceelectrostaticpotentialraises,thefilteringmediumhasabetterfiltrationefficiencyper－formance.Keywordselectretfiltermaterialsurfaceelectrostaticpotential!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!19··