TheCX/FRrangeofTeflon®FEPfluoropolymerresinsc***istsofaTeflon®FEPfluoropolymerwithanucleatingsystemcompoundedintoit.Teflon®FEPCX5010isTeflon®FEP100basedwhileTeflon®FR5020andFR5030areTeflon®FEP5100based.Thenucleatingsystemsaredesignedtogivethefoamingcharacteristicsneededforawiderangeofprimarywireconductorinsulationperformance.Suppliedaswhitepellets,theseresinsareusedinconventionalfoamextrusionprocesseswiththeadditionofnitrogengastoproducefoameddielectricinsulati***.Theproductrangeisformulatedtoallowthecabledesignertousetheminawiderangeofdesigndimensi***andelectricalperformances.Theparticlesinthenucleatingpackagescompoundedintotheseresinsactasinitiationsitesforfoamcells.Thesefoamcellsareformedwhennitrogen,whichisabsorbedinthemeltedresin,expandsaspressureisrelievedwhenthemeltexitsthewirecoatingcrosshead.Teflon®FEPCX5010,FR5020andFR5030arelistedinorderofascendingnucleatingefficiency.FoamingFEPenhancesitselectronicproperties,providingopportunitiesforminiaturizationandweights***ings.Teflon®FEPCX5010isidealforproducingcoaxialcablecoresinabroadrangeofsizes.Thecorediameterscanvaryfrom0.05in.(1.27mm)to0.50in.(12.7mm).FoamedcoaxialcablesofTeflon®FEPCX5010areknownforhigh-frequencysignaltran***issionwithminimaldistortion.AtypicalcoaxialcablecoremadefromTeflon®FEPCX5010containsupto60percentvoids.Thesevoidsareclosedcellinnatureandrangefrom0.001in.(0.025mm)to0.010in.(0.25mm)indiameter.Teflon®FEPCX5010hasanMFRrangeof6.4to7.5.Teflon®FEPFR5020isanexcellentmaterialforproducingthefoamedprimarydielectricinsulationinacablethatpossessesanoverallshieldorshieldsoneachtwistedpairinthatcable.Theprimarycorediameterscanvaryfrom0.05in.(1.27mm)to0.10in.(2.54mm).FoamedinsulationprimariesofTeflon®FEPFR5020areknownforhighfrequencysignaltran***issionwithminimaldistortion.Thesefoamcoresmaycontain20to40percentvoids.Thesevoidsareclosedcellinnatureandrangefrom0.0007in.(0.018mm)to0.002in.(0.05mm)indiameter.Teflon®FEPFR5020andFR5030h***eanMFRrangeof19to25.Teflon®FEPFR5030isanexcellentmaterialforproducingthefoamedprimarydielectricinsulationinacablethatpossessesunshieldedtwistedpairs.ItisthemostefficientnucleatedFEPcompoundintherange.Cableprimarycorediameterscanvaryfrom,0.035in.(0.89mm)to0.050in.(1.27mm).FoamedinsulationprimariesofTeflon®FEPFR5030areknownforhigh-frequencysignaltran***issionwithminimaldistortion.Thesefoamcoresmaycontain20to40percentvoids.Thesevoidsareclosedcellinnatureandrangefrom0.0007in.(0.018mm)to0.0013in.(0.033mm)indiameter.ChemourswasformedfromformerDuPontperformancechemicalsbusinesses,includingDuPontFluoroproducts,in2015.)