Aw di maykroporous strɔkchɔ dizayn fɔ breathable Teflon ay-tɛmpracha tep go balans di ay permiabiliti wit insuleshɔn ɛn nɔ-stik prɔpati dɛn?

JiangsuTeflonHigh-TemperatureClothManufacturer–JiangsuAokaiNewMaterialTechnologyCo.,Ltd. de mɛmba se dis na impɔtant tin fɔ sinajɛ bitwin porɔsstrɔkchɔ ɛn sɔfa/bɔlkfɔnshɔnal prɔpati.

1.Sכsכf di k כnfliktBכt MaykroporousStrכkch כ εn Prכpati dεm Eyapermiabiliti nid inta kכnekt dכpεnpor dεm, wit gas we de pas tru tכrtuכs chεnal dεm.Di pεrmiabiliti rεt na prכpכshכnal to di skwea כf di porεd εn di porכsiti, εn difrεn prכpכshכnal to di tכrtuositi כf di porchεnal dεm.

Insuleshɔn(diɛlektrik trɛnk) . di mεtirial in dεnsiti.Introdyus maykropכreshכn ikwal to miks εya(wit lכw brek dכwn fil strכng we ~3kV/mm) insay di PTFEmatris, εndopεnpor dεm de gi pכtεnshal rod fכ patchכl dischaj εn krεpjεj trak.Di hכy di porositi εn di strεt di tru-por dεm, di mכr signifyant di dropin brek dכwnvכltεj.

Airpermeabilityvs.nɔ-stikprɔpati: . di prכpati we nכ de stik kכmכt frכm PTFE in εkstrimכl lכw sכfa enεji(~18mN/m) εn smol sכfa.Maykropor dεm de inkrεs di sכfa rכf εn di aktual kכntaktεria;mכlt mεtirial כ viskכs midia kin pen etratethemicropores,fכm'mεkanikal intalכk'dat de mek i de mek dεn de adheshon.Fכ dat, di mכtalman fכ rich di εya pεrmiabiliti εn sכfayz rεsistεns fכ wet εn pεnεtreshכn.

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2.1KɔntroldiAvɛrejPɔrDayamita(0.1–2μm)ɛnNarɔPɔrSayzDistribyushɔn Fɔinsuleshɔn: We di poresizesmɔl pas di ilɛktron min fri pathan di initiashɔn dɛn saiz fɔ pat pan dischaj, brokdɔwn na di ay gap stil de fala Paschen in lɔ;bɔt, ekstrim fayn maykropɔr dɛn(sabmikr onscale)kin signifikantli inkrεs di brekdaun vכltεj.Studi dεm sho se we di avεrej porediamεtri dεn sεk dεn dכn 0.5μm, di DCbrεk dכwn strכng we 50-μm-tik PTFEfilm kin stil rich oba 40kV/mm.

Fɔ nɔ-stikpɔfɔmɛnshɔn: . We di poresayz smɔl pas di kritikal penetreshɔn saizwe di mɔlikul chen rɛdyus ɔf gayreshɔn ɔ di mɛltviskɔsiti ɔf ɔt-mɛltadɛsiv(ɛgz., PE, PP), di mɛlt kin nɔ filta di maykropɔr dɛn.Itonly kɔntakt dɛn edPTFEfibrilsondi surface, we de rizultainextremelysmallactualcontactarea,sothenon-stickpropertyremainsunaffected.Jɛnɛral wan, di sɔfayspɔrɛs we smɔl pas 0.5μm kin ifɛktiv wan fɔ mek i nɔ go insay bay mɔsthɔt-mɛltadhesives.

2.2KɔntrolPorosityinaMɔdarɛtRɛnj(50%–70%) .

Tulɔporositi(<30%) nɔ kin gi prɛktikal ɛyapermiabiliti;tu ay(>80%) de ridyus di sɔlid kɔntinyu pasmak, we de mek i shap shap ditirieshɔn insay insuleshɔn ɛn mɛkanikal prɔpati. Ataporosityaround60%,di airpermeability(Gurleyvalue) kin bi kontrכlwithin20–100s/100cc, we film 0.13mm tik kin mentεn didielektrik strכng we ≥2kV, mit mכst di at-silin insulεshכn rikwaymεnt.

 2.3AdoptaHigh-Tortuosity3DNetworkPoreStructure(dɛn yuz am bay JiangsuTeflonHay-TɛmpraturaKlɔtManufacturer)

di'node-fibril'struktכrכfPTFEinhεrentli fכm shayt כtuositi(τ≈2.54).Gεs dεm fכ pas tru tכrtuכs pat dεm, we de εkstεnd di εya brek dכwn path εn ifektivli sכpres di fכmeshכn כf strεt-thru dischaj chεnal dεm. di hכy tכrtuositialכs de ridyus di dipεndεns fכ fayn pεrmiabiliti pan poresayzfrכm skwea rileshכn to wik kכn, alaw fכ yuz sכm big pores dεn εkschεnj fכ di insulεshכn rilaybiliti.

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Tru hεtkalεnda, sכt-tεm hεy-tεmprachכ inta, כ kכt wit כltra-tinfluoropolimכr(εgz., TeflonAF), di kכntakt sכfεs wit di wokin כbjεkt kin gεt sכfεs sεm lεk adεns film.Maykropor dεm dכn kכloz dכwn to di nanomita skel כ patli mεlt εn sial, achy nכn-stik pεrformεns εn dεn hεns insulεshכn. di bכl dεm de hεli porous breathable layεr: Bεnεt di skin layεr, di mεtirial stil de mεnten hכy porous nεtwכk כf inta kכnekt maykropכr dεm.Gaskan de transmit lateral εn lכngitudinally tru di ed dεm tru rεsidyual nano-sayz pores in di skin, mεnten ova כva di εya pεrmiabiliti.

Ifɛkt: Insulationis dominated by the denselayer, non-stickperformanceisensured by di denselayer’s ekstrimli lכw sכfayz enεrεjεndכltra-fayn pכr, εn di εya pεrmiabiliti de rεli pan intalayεr difכs ionandedgeconvection.We yu yuz am pan hεt-siling mashin, di tep sכfayz nכ de stik to di molten film, we mכsichכ εn vכlatil kin dכn εkspεl tru di edj dεm fכ di maykroporouslayεr.

2.5SכfεsPost-Tritmεnt:Supa-Oleophobic/HydrophobicModificationWithoutPoreBlockage Bayplasmagraft ɔf fluorinated monomɛr ɔvaprɔdipɔzishɔn ɔf wan ekstrimlitin(<50nm)perfluorinated layεr, akɔtin wit di vεn lכw sכfayz εnεji kin fכm dכn di insay wכl sכft hεmikrכpכr dεm.Dis fכ prεvεnt fכ fכt bay stika sכbstans we nכ kכlכg di porchεnal dεm. Dis tritmεnt de dכn di sכfa wit'maykro/nanodual-fכbisiti,'pgrεd di nכn-stikprכpati to anti-soiling, wit kכlכsכl nכlכsεn εya pεrmiabiliti.

3.TipikPɔfɔmɛnshɔnIndikɛtɔ fɔBalansDizayn

Tek wan optimallydesignedbreathablePTFEtape(0.13mmthick)wan ɛgzampul:

4.Kɔnklushɔn

Di balans fכ di maykroporous strכkchכ inbreathableTεflכn hεy-tεmprachכ tεp na sεnsentially achiv tru mכfכlכjik εnjinia ,distribyut di tri prכpati dεm kכros difrεnt strכkchכral lεvεl dεm:

Insulεshכn εn nכn-stikpεrformεns dεn de provayd bay di nia-sכfayz dεns dεn skin כltra-fayn maykropכr dεm;

Airpermeability ishandledbytheinternallyconnected, tortuous makroporousnetwok. As alongas di surface poresize de kontrol in di sabmaykronrange, di intanal porosity en tortuosity de presisli kombayn wit di gradient strakcha, di tep kin simultaneously achiv gud airpermiability, insuleshɔn, ɛn nɔ-stikperfɔmans akɔdin to difrɛn rɛnj ɔf spɛsifikɛshɔn.

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