E fa'afefea ona fa'aleleia atili le fetolofi ma le fa'atumauina umi o le lipine vevela maualuga o Teflon?

I.MolecularNetworkTopologyOptimizationoftheSiliconeAdhesiveLayer–Faʻaleleia le BulkCreepResistance

1.HighMQResin/SiliconeRubberRatioand'Gard-Core' Structure

O lo'o fa'aogaina e le fale gaosimea le MQsilicone e avea ma mea fa'apipi'i ma mea fa'amalosia, fa'atuputeleina le MQ/gumratioto1.2:1–2:1(matua maualuga atu nai lo fa'ailoga masani). ma'a'a'fa'afaigata-vaega' microdomains i totonu o le mea fa'apipi'i ulu, lea e fa'atapulaaina ai le fe'avea'i o vāega o filifili ma fa'aleleia atili ai le fa'aputuga fa'aola ma le fa'aulu pulepulega fa'ateteleina vevela.

2. Tu'ufa'atasia o Tulaga Fa'asa'o-Matete-vevela ma Malosi-So'a Maualuga

Phenyl, diphenyl, po'o kulupu carborane o lo'o fa'aofia i totonu ole polydimethylsiloxane ivi tua(fa'ata'ita'iga,20-30mol%phenylcontent) e fa'alavelave ai le filifili vevela ma fa'atupuina uma le vevela o le suiga o tioata ma le vevela. rmaldecompositiontemperature.The crosslinking systempreferentially employsaddition-curehydrosilylation(Pt-catalyzed), fai-C-C-po-Si-C-crosslinkingbridges with superiorthermalstability.

3. Puleaina o le mamafa molekalale i le va oCrosslinks(Mc)ma le feso'ota'iga faaletonu

E ala ile fetuutuunai sa'o ole anoano ole hydrogen ma le filifili umi ole suau'u silikonona o lo'o i totonu ole hydrogen, e fai si la'ititi o tulaga tutusaMc(tusa ma le 5,000–15,000g/mol) ua maua, fa'amautinoa ole upega galuega e fa'atumauina le maufetuuna'i e tusa lava pe o'o i le maualuga o le vevela. Fa'alautele pe a mae'a le fa'amalologa po'o le vevela-maualuga o le fa'agata fa'aoga e fa'aaoga i le fa'aaogaina o vaega toe fa'agaoioiga ma fa'atupuina le fa'apopoleina o le fa'amalologa e mafua mai fa'aletonu o feso'ota'iga.

II.GradientModulusMultilayerAdhesiveStructure–BalancingTackandCreepResistance

'Fa'apalapala fa'amua-maua-maua-maualuga-mouluscohesivelayer-Visiscoelasticfunctionallayer' fa'ailoga e tolu-vaega

1.Primer-fa'apalapala(1–3μm): Fa'aaogāsasilanecouplingagentcontainingepoxyoracryloyloxygroups,muamua-polymerizedwithMQresin,toprovidebothchemicalbondingtothePTFEsubstrateandco-crosslinkingwiththeuppersiliconelayer.

2.High-moduluscohesivelayer (matua, approx.30-50μm): Fa'aoga-maualuga-MQ-fua, maualuga-phenyl-anotusi,maualuga-crosslink-densitysiliconeadhesivetofurnisharobustsshear-resistantskeleton.

3. Viscoelasticfunctionallayer(incontactwiththeadherend,3–8μm): Employslow-MQ-ratioorhydroxy-terminated silicone-suauu-modifiedsoftsiliconeadhesivetolowersurfacemodulusandensurerapidwettingandconformabilitytohead herendatelevated temperatures.

III. Mea fa'atumuina mo le Fausiaina o le Feso'ota'i Fa'aletino ma I'i'i'i'i e Tete'e i le vevela

1.In-SituReinforcementandSurfaceModificationofNano-Silica

O le gaosiga o le fumedsilica (laueleele faʻapitoa200-380m²/g), faʻaogaina i luga o le vinyltriethoxysilane poʻo le hexamethyldisilazane, faʻapipiʻiina o le 10–25wt%. feso'ota'iga feso'ota'iga fela'ua'i fa'aletino e fa'ama'apeina ai le malosi ma taofia ai filifili mole mata'itusi i luga o le vevela.

2.DirectionalCreepResistancevia2DNanomaterials

Fa'aopoopoina o le1–5wt%few-layergraphene ororgano-modifiednano-montmorillonite, lea e fa'atatau i le fa'aogaina o le fa'aoga e ala i sele-fa'aoso le fa'aogaina a'o fa'apipi'iina, fa'apena ' mazeeffect' tutusa ma le tape. auala, fa'atuputeleina le fa'ateteleina o le filifili mole mole i le fa'atonuga.

IV.ChemicallyIntegratedSubstrate-Adhesive InterfaceandProcessControl

1.SurfaceActivationandBifunctionalPrimerforChemicalBonding

E muamua ona togafitia le PTFE i le naphthalene-THFsolution po o le maualalo o le mamafa o le argon/oxygenplasma e fa'atupuina ai le mea fa'agaoioi o lo'o i ai vaega o le carboxyland hydroxylgroups.Solusi muamua e iai molelaula e lua (fa'ata'ita'iga, isocyanatesilane, titanatecoplingagent+epoxymediatelyco) O le tasi pito o le vaimua e tali atu i le–OH/–COOHi luga o le PTFE, ae o le isi e auai i le hydrosilylation po o le condensation feso'ota'i ma le silikonia pipii, fausia se feso'ota'iga vaila'au e ati i luga o le va'aiga. O lenei auala e mafai ona fa'atuputeleina le malosi maualuga e taofi ai le vevela (i le 260°C).

2.RampedCuringandPost-Treatment to Eliminate Defects

Alampedcuring profile ua fa'afaigaluegaina: muamua, fa'agata le soli ma le fa'apipi'i fa'apipi'i e fa'atatau ile 80–100°C; ona mae'a lea o le fa'apalapala ma le fa'aputuina ole MQresina ile 150–170°C; -fa'amalologa fa'amalulu i fafo i le 200–220°Cmo ni nai itula e fa'ate'a ai le fa'atiga i totonu ma fa'amautu vaega o feso'ota'iga fa'aletino. Fa'agesegese le malūlū e taofia ai le ma'i'a'a'ese'ese'ese'ese vevela vevela.

O lo'o i luga fa'amatalaga tu'uina atu eJiangsuAokaiNewMaterialTechnologyCo.,Ltd.

Afai e te manaʻo e maua le poto loloto i le tele o oloa-e aofia ai le Tefloni-vevela maualuga, Teflon-maualuga lipine, Teflon-maualuga mesh fusipaʻu, fusipaʻu feʻaveaʻi mo masini faʻapipiʻi, tasi itu PTFE ie, fusipa'u fe'avea'i e tete'e i le vevela, ie tioata e tete'e i le vevela, ma isi mea-fa'atasi ai ma fa'amatalaga au'ili'ili, fa'asologa o talosaga, ma fofo fa'apitoa, fa'amolemole lagona le saoloto e fa'afeso'ota'i i ala nei:

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