Ɔkwan bɛn so na microporous nhyehyɛe nhyehyɛe a ɛyɛ Teflon a ɛyɛ hyew kɛse teyp a ɛhome no betumi akari pɛ wɔ mframa a ɛtumi fa mu ne nneɛma a ɛbɔ ho ban ne nea ɛnyɛ nnam ho?

JiangsuTeflonHigh-TemperatureClothManufacturer–JiangsuAokaiNewMaterialTechnologyCo.,Ltd.kae sɛ eyi titiriw yɛ biakoyɛ a ɛda porousstructure ne surface/bulkfunctionalproperties ntam.

1.SourcesoftheConflictAmongMicroporousStructureandProperties Mframa a ɛtumi fa mu no hwehwɛ sɛ wɔde nhama a ɛbue, a mframa fa akwan a ɛyɛ twitwiw so di nkitaho.Nneɛma a ɛtumi fa mu no ne nsuo a ɛtumi fa mu no ne nsuo a ɛtumi fa mu no ne ntwemu no ntwemu ahinanan ne nsuo mu nsuo a ɛwɔ mu no hyia, na ɛne nsuo a ɛtumi fa mu no hyia.

Insulation(dielectric ahoɔden) . reliesonthematerial'sdensity.Mframa nketenkete a ɛyɛ pɛ a wɔde bɛfrafra mframa (a ɛwɔ breakdownfield ahoɔden a ɛba fam a ɛyɛ ~3kV/mm) mu a wɔde bɛba PTFEmatrix no mu, na apore a ɛbue no ma akwan a ebetumi aba ama nsuo a ɛfiri mu fã bi na ɛtwetwe nsuo.The poresity a ɛkorɔn na ɛyɛ tẽẽ fa pores mu no, ɛno na ɛho hia kɛseɛ sɛ droppin breakdownvoltage.

Mframa a ɛtumi fa muvs.non-stickproperty: Saa agyapadeɛ a ɛnyɛ dua no firi PTFE a ɛwɔ soro ahoɔden a ɛba fam koraa (~18mN/m) ne asase a ɛyɛ torotoro.Micropores ma asase ani a ɛyɛ mmerɛw ne beaeɛ a ɛne ne ho di nkitaho ankasa no kɔ soro;nneɛma a ɛyɛ nwene anaasɛ ɛyɛ ntini a ɛyɛ nwene betumi ayɛ pen etratethemicropores,forming'mechanicalinterlocking'a ɛnyɛ sɛ ɛde abatasoɔ ba.Enti, ɛsɛ sɛ nneɛma no nya mframa a ɛtumi fa mu ne asase ani a ɛko tia nsuo na ɛkɔ mu.

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2.1DiAveragePoreDiameter(0.1–2μm)neNarrowPoreSizeNkyekyɛmu no so Forinsulation: Sɛ poresize no sua sen ɛlɛtrɔnik no kyerɛ freewayandtheinitiationsizesizema fã bi a ɛbɛtow a, ɛpaapae wɔ mframa mu nsonsonoe da so ara di Paschen mmara akyi;nanso, micropore a ɛyɛ fɛ yiye (submicr onscale)betumi ama breakdownvoltage no akɔ soro kɛse.Nhwehwɛmu ahorow kyerɛ sɛ bere a sɛ wɔkyekyem pɛpɛɛpɛ a, wogye tom sɛ 0.5μm no, DCbreakdown ahoɔden a ɛwɔ 50-μm-thickePTFEfilm no da so ara tumi du 40kV/mm.

Sɛnea ɛnyɛ stickperformance: Sɛ poresize no sua sene penetrationsized a ɛho hia a wɔde molecule chain radius ofgyration anaa meltviscosity a ɛwɔ hot-meltadhesives (sɛ nhwɛso no, PE,PP) mu na ɛkyerɛ a, nsuo no ntumi nkɔyi micropoores no mu.Ɛno nkutoo ne nkitahodi edPTFEfibril a ɛwɔ asase ani, a ɛde beae ketewaa bi a ɛne ne ho di nkitaho ba, enti ɛnyɛ dua a ɛnyɛ dua no da so ara nnya nkɛntɛnso.Mpɛn pii no, asase ani nsu a ɛyɛ ketewaa sen 0.5μm betumi asiw nnuru a wɔde kata so dodow bi a ɛbɛkɔ mu no ano yiye.

2.2NhyɛsoPorosityinaNneɛma a ɛyɛ mmerɛw(50%–70%) .

Nnwinnade mu akisikuru(<30%) ntumi mma mframa a ɛyɛ adwuma no tumi fa mu;ɛkɔ soro dodo(>80%) ma nneɛma a ɛyɛ den no so tew dodo, na ɛde ɔsɛe kɛse ba wɔ insulation ne mfiridwuma mu su ahorow mu. Ataporosityaround60%,theairpermeability(Gurleyvalue)betumi adi so wɔ 20–100s/100cc mu, bere a sini a ne kɛse yɛ 0.13mm betumi akura dielectric ahoɔden a ɛyɛ ≥2kV, a ɛne nea ɛhwehwɛ sɛ wɔde hyɛ mframa mu no hyia.

 2.3AdoptaHigh-Tortuosity3DNetworkPoreStructure(wɔde JiangsuTeflonNtama a Ɛwɔ Ɔhyew a ƐkorɔnNtama Yɛfo de dii dwuma)

'node-fibril'nhyehyɛe a ɛwɔ PTFE mu no fi awosu mu yɛ shaightortuosity(τ≈2.54).Ɛsɛ sɛ mframa fa akwan a ɛyɛ kyinhyia so, a ɛtrɛw mframa a ɛpaapae kwan no mu na esiw nsu a ɛkɔ tẽẽ a ɛfa nsu mu no a ɛba no ano yiye. Hightortuosity nso tew dependence a fair permeability on poresize fi square relationship to aweakerone, ma kwan ma wɔde pores akɛse kakra di dwuma de sesa ma insululation ahotoso.

2.4ConstructanAsymmetricGradientPoreStructure–DenseSurface,PorousMfinimfini Densesurfaceskinlayer(ne kɛse1–5μm) .

Ɛnam ɔhyew kalenda so, bere tiaa mu ɔhyew a ɛkorɔn a wɔde hyɛ mu, anaasɛ wɔde kata fluoropolymer a ɛyɛ tratraa kɛse so (sɛ nhwɛso no, TeflonAF) so no, nea ɛne adwuma no di nkitaho no nya ɔfasu a ɛte sɛ sini a ɛyɛ den.Wɔtoto micropores mu kɔ nanometerscale no ase anaasɛ wɔanwene ne fã bi na wɔatoto mu, na enya adwumayɛ a ɛnyɛ stick na wɔsan inulation kɔ soro. Nneɛma akɛse no kɔ so tra honam ani fã a ɛyɛ abon kɛse a ɛma wotumi home: Wɔ honam ani fã no ase no, nneɛma no da so ara kura ntini nketenkete a ɛka bom no mu a ɛyɛ abon kɛse.Gacabetumi de fa anoano no mu akɔ afã horow ne tenten mu denam nsunsuanso a aka a ne kɛse te sɛ nano so wɔ honam ani, na ɛkura mframa a ɛtumi fa mu no so.

Nkɛntɛnso: Insulation yɛ denselayer na ɛdi so, non-stickperformance na denselayer’s a ɛba fam koraa wɔ asase ani ahoɔden a ɛba fam koraa ne ultra-finepores, na mframa a ɛtumi fa mu no gyina interlayer diffus so ionandedgeconvection.Sɛ wɔde mfiri a wɔde hyɛ ɔhyew mu di dwuma a, teape no ani ntumi nkɔ film a ayɛ nwini no so, bere a wobetumi atu nsu ne nsu a ɛyɛ hyew afa anoano a ɛwɔ microporouslayer no mu.

2.5SurfacePost-Ayaresa:Super-Oleophobic/HydrophobicNsakraeɛ a Enni PoreBlockage Ɛdenam plasma a wɔde bɛhyɛ mu a wɔde fluorinated monomer anaa vapordeposition of anextremelythin(<50nm)perfluorinated layer, acoating withvenlowers surface energy can be formed on the innerwallsofthemicropores.Eyi nso siw nneɛma a ɛyɛ nnam a ɛnsiw porechannels no ano. Saa ayaresa yi ma asase ani no nya 'micro/nanodual-phobicity,'ma ɛyɛ papa a ɛnyɛ dua no ma ɛyɛ nea ɛko tia efĩ, a ɛkame ayɛ sɛ mframa a ɛtumi fa mu no hwere.'

3.TypicalPerformanceIndicatorsfora Nsusuwii a Ɛkari pɛ

Fam a wɔayɛ no yiye a ɛma homePTFEtape(0.13mmthick)a sɛ nhwɛso bi:

4.Awiei

Nneɛma nketenkete a ɛwɔ abon mu a ɛkari pɛ wɔ Teflon a ɛtumi home mu no, ɛho hia sɛ wɔfa morphological engineering so nya , wɔkyekyɛ su abiɛsa no mu wɔ structure levels ahorow so:

Insulation ne non-stickperformance no nam nea ɛbɛn asase a ɛyɛ den anaa ultra-finemicropores so na ɛma;

Mframa a ɛkɔ mu no yɛ nea wɔde di dwuma denam ntam a ɛka bom, a ɛyɛ tortuousmacroporousnetwork so. Bere dodow a wɔhyɛ asase so nsunsuanso no so wɔ submicronrange no mu no, wɔde emu poresity ne tortuosity no bom pɛpɛɛpɛ wɔ gradientstructure mu no, tape no betumi anya mframa a ɛtumi fa mu yiye, inulation, ne non-stickperformance bere koro mu wɔ nsɛm ahorow pii mu.

Nsɛm a ɛwɔ atifi hɔ no, wɔde maJiangsuAokaiNneɛma FoforoMfiridwumaCo.,Ltd. Sɛ wopɛ sɛ wusua pii fa parameters a ɛkɔ akyiri, applicationscenarios, ne customization solutions a ɛfa yɛn nneɛma ahorow nyinaa ho a–a Teflon ntama a ɛyɛ hyew a ɛkorɔn,Teflon tap a ɛyɛ hyew ka ho e,Teflonhigh-temperaturemeshbelts,seamlessbeltsforlaminatingmachines,afã biakoPTFE ntama,ɔhyew a ɛkorɔn conveyorbelts,ɔhyew a ɛkorɔnfiberglasscloth,ne nea ɛkeka ho–yɛsrɛ wo te nka sɛ wowɔ ahofadi sɛ wo ne obi di nkitaho: ~!phoenix_var158_1!~

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