Kodi zokutira za PTFE zimalumikizidwa bwanji ndi gawo lapansi la nsalu ya fiberglass mu nsalu ya Teflon yotentha kwambiri?

Kodi PTFECoatingonTeflonHigh-Temperature Cloth Imamatira BwanjiFiberglassFabric?

PTFE(polytetrafluoroethylene) ili ndi mphamvu zotsika kwambiri komanso zosadziwika bwino ndi 'zopanda ndodo'zinthu. Chifukwa chake, sizingakhale zomangika mwachindunji kufiberglass. othmanufacturer–JiangsuAokaiNewMaterialTechnologyCo.,Ltd., mgwirizano pakati pazochita ziwiriziwiri zomwe zimatheka kupyolera mwa thupi calanchoring ndi makina otsekera, kuwonjezeredwa ndi mankhwala opangira mankhwala kapena kutentha-kusungunuka kophatikiza zotsatira zake.

Njira zenizeni zogwirizanitsira nsalu za Teflon kutentha kwambiri zimaphatikizanso izi:

1.MechanicalInterlocking(PhysicalBonding) Iyi ndi njira yofunikira kwambiri.Magalasi opangidwa ndi magalasi opangidwa ndi nsalu.Pamene PTFEemulsion kapena kubalalikasikumizidwa kumakutira pansaluyo yagalasi,PTFE imalowa mkati mwa mipata yapakati pa ulusiwo.Itatha kuyanika ndi kutentha kwambiri. intering(pafupifupi 360–400°C), PTFEtinthu tating’onoting’ono timasungunula filimu yosalekeza, kugwira mwamphamvu mitolo ya ulusi ngati zosawerengeka'anangula.'Komabe, kudalira njira iyi yokhayo kumabweretsabe mphamvu zomangirira zowerengeka,ndipo zimafunikanso miyeso yowonjezera.

2.SilaneCouplingAgentPretreatment(ChemicalBridging)

Iyi ndi njira yopangira nsalu zagalasi zapamwamba kwambiri zaPTFE.Nsalu zagalasi zagalasi zimayamba kuthandizidwa ndiasilanecouplingagent(sochasaminosilane,epoxysilane, etc.):

Oneendofthesilane(siloxygroup),afterhydrolysis,canchemicallybondwiththehydroxylgroups(-OH)pamwamba pazingwe zamagalasi;

Theotherend,zokhala ndimagulumagulu ogwirira ntchito,cancross-linkorstronglyadsorbwiththeandpadepartments inthefluorinatedprimerm munthawi yakuimiridwa motsatira kapena zokutira.Izi zimamanga bwino'molecularbridge'pakati paorganicandinorganicinterfaces.

3.ChemicalPrimerTransitionLayer

Kuyatira mwachindunjiPTFEkumapangitsanso kuphatikizika komatira pambuyo pakuphatikizika,kudzipereka koyambirira nthawi zambiri kumagwiritsidwa ntchito koyamba pansalu yamagalasi.

Zomatira: Sukaspolyamide-imide(PAI),polyphenylenesulfide(PPS),polyethersulfone(PES),orpolyetheretherketone(PEEK),omwe ali ndi madzi abwino komanso omatira ku ulusi wa magalasi,ndipo amatha kupirira pakadutsa kutentha kwakukuluPTFEkulowa mkati.

PTFEmicropowder: Kuonetsetsa kuti woyamba ndi womalizaPTFEosewera akhoza kuphatikiza palimodzi.

Mapulani oyambilira awa amapangidwa ndimabondi ndi akuthupi olumikizana ndi magalasi olumikizirana-othandizira-wopangidwa ndi nsalu yotchinga.

4.Hot-MeltAdhesiveFilmLamination(LaminationMethod) Njirayi, yolembedwa ndiJiangsuAokaiNewMaterialTechnologyCo.,Ltd.,inagwiritsidwa ntchito kukhalabondpre-formed,thickPTFEfilmstofiberglassfabric.ChifukwaPTFEhasanextremelyhighmeltviscosity(pafupifupi ately10⊃1;⁰–10⊃1;⊃2;Pa·s),sikumayenda kasanu ndi kawiri pamene yatenthedwa pamwamba pa malo osungunuka,sodirecthot-pressbondingindiszosatheka.Amelt-processable'hot-meltadhesive'iyenera kugwiritsidwa ntchito, makamaka: FEP(fluorinatedethylenepropylene) orPFA(perfluoroalkoxy) mafilimu ,omwe ali ndi mfundo zosungunuka zotsika kuposaPTFE(pafupifupi 260–310°C). Akasungunuka, amatha kunyowetsa ulusi wagalasi losungunula-kusokoneza/kusungunuka ndi PTFEfil msurface.Intheprocess, theFEP/PFAfilm inaika pakati paPTFEfilmandthefiberglassfabric,nothered and pressed,and aftercooling,astrongbondisformed.

5.Maonekedwe a Gradientkupyolera muKulowetsa Kambiri ndi Kuyimirira

Mabele ambiri otenthetsera kwambiri komanso mamemba amipangidwe amapangidwa mosiyanasiyana njira yoyimwitsira mowirikiza: Kuyamwitsa koyamba kumagwiritsa ntchito kusungunula PTFE kubala kokhala ndi zomangira ndi zolumikizira, kulola woyamba kulowa mumitolo. Pambuyo pakulowetsedwa, mimba zambiri zotsatizanazikhala ndi malingaliro oyera aPTFE ndimotsatana motsatana masitepe amatulutsidwa, zomwe zimachititsa kuti pakhale chiyero chochulukirachulukira chaPTFE pamwamba. Izi zimapanga mawonekedwe osinthika mokhazikika kuchokera ku fiberglass nsalu yoyeraPTFE, yokhala ndi otsika otsika komanso mphamvu yolumikizirana yolimba.

Mapeto

Mwachidule, mgwirizano pakati pa PTFE zokutira ndi nsalu zamagalasi opangidwa ndi fiberglassTeflonhigh-temperaturecloths notsimply'gluing' -imapangitsa zovuta(kachitidwe kaunjiniya mwadongosolo):kupyolera muthupi lanchoringtotakerootinthefibers,kudzera zopendekerazondi zoyambazozipangitsa kuti tipezekemikolobondi ndikusintha,ndikupyolera mu kutentha kwapamwambakuphatikizanakumalizakusungunuka-kuphatikiza kwazosanjikizamakanema.IfonlypurePTFE zinali zokutidwa mwachindunji,gawo lonselould peeloffwithingletear.

Zomwe zili pamwambazi zimaperekedwa ndiJiangsuAokaiNewMaterialTechnologyCo.,Ltd. Ngati mungafune kudziwa zambiri za magawo, machitidwe ogwiritsira ntchito, ndikusintha makonda pazosankha zathuzamitundu yonse yazinthu-kuphatikizapo Teflonhigh-temperaturecloth,Teflonhigh-temperaturetap e,Teflonhigh-temperature mesh malamba,malamba opanda msoko akumakina olatira,mbali imodziPTFEcloth,malamba onyamula kutentha kwambiri,magalasi otenthetsera kwambiri,ndizowonjezera–chonde khalani omasukakukhudzana: ~!phoenix_var143_1!~

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