I-PTFE ihlanganiswe kanjani nendwangu ye-fiberglass substrate engutsheni ye-Teflon enezinga eliphezulu lokushisa?

I-PTFECoatingonTeflonHigh-Temperature ClothInamathela Kanjani kwiFiberglassFabric?

I-PTFE(i-polytetrafluoroethylene)inamandla aphansi kakhulu ebusweni futhi engaziwa ngendlela engaziwa'izinto ezingezona izinti'.Ngakho-ke, ayikwazi ukuboshelwa ngamakhemikhali ngokuqondile kwifiberglassfabriclikeordinarycoatings.Ihlaziywe yiTeflonhigh-temperaturecl. i-othmanufacturer–JiangsuAokaiNewMaterialTechnologyCo.,Ltd., ukuhlangana phakathi kwalokhu okujwayelekile okubili okuzuzwe nge-physicalanchoring kanye nokukhiya ukukhiya, kwengezwe yi-chemicalprimertreatmentorhot-meltadhesioncompositeeffects.

Izindlela eziqondile zokuhlanganisa indwangu ye-Teflon izinga lokushisa eliphakeme ikakhulukazi ihlanganisa lokhu okulandelayo:

1.I-MechanicalInterlocking(PhysicalBonding) Lena indlela ebaluleke kakhulu.I-FiberglassFabricitselfisaporoustextile.Lapho i-PTFEemulsionordispersionisimithedorcoatedentothefiberglassfabric,thePTFE ingena phakathi kwegebe nokuphambana kwesiphambano phakathi kwamafayibha.Ngemva kokomisa kanye namazinga okushisa aphezulu. intering(ingaba ngu-360–400°C), izinhlayiya zePTFE ziyancibilika zibe ifilimu eqhubekayo, ibambe ngokuqinile izinyanda zefibernjengama-anchorhooks ezingenakubalwa.'Kodwa-ke, ukuthembela kuphela kule ndlela kusaphumela kumandla okubopha alinganiselwe, futhi ngokuvamile kudinga izinyathelo zokwengeza.

2.SilaneCouplingAgentPretreatment(ChemicalBridging)

Lokhu cishe kuyinqubo eyisisekelo yazo zonke izindwangu zengilazi zefayili zekhwalithi ephezulu ye-PTFE.Indwangu yengilazi yefayibhayaqala ukuphathwa ngeasilanecouplingagent(i-suchasaminosilane,epoxysilane,njll.):

I-Endofthesilane(i-siloxygroup), i-afterhydrolysis, i-canchemicallybond withthehydroxylgroups(-OH) phezu kwefayibha yengilazi;

Theotherend,aphethe ama-organicfunctionalgroups,i-cancross-linkorstronglyadsorbwiththeadhesive partsinthefluorinatedprimer ngesikhathi sokukhulelwa okulandelayonoma i-coating.Lokhu kwakha ngempumelelo'ibhuloho le-molecular' phakathi kwe-organicandinorganicinterfaces.

3.ChemicalPrimerTransitionLayer

Ukunamathela okuqondilePTFEkuholela ekunamatheleni okumpofu ngemva kokuhlanganisa,okunikelwe okuyinhloko ngokuvamile kuvame ukufaka kuqala kwindwangu yengilazi ye-fiber.

Ama-Adhesiveresins: I-Sukaspolyamide-imide(PAI), i-polyphenylenesulfide(PPS), i-polyethersulfone(PES), noma i-polyetheretherketone(PEEK), enokuqina okuhle nokunamathela emiculweni yengilazi, futhi engakwazi ukumelana nenqubo yokwengeza izinga lokushisa eliphezuluPTFE.

I-PTFEmicropowder: Ukuqinisekisa ukuthiisiqalo kanye nesokugcinaPTFEumdlali angahlanganisa ndawonye.

Le mibhalo yokuqala ithola amakhemikhali amabhondi kanye nokuxhuma ngokomzimba ngendwangu yengilazi yengilazi ehlanganayo, eyakha isendlalelo esishintshashintshayo se-PTFE.

4.Hot-MeltAdhesiveFilmLamination(LaminationMethod) Le ndlela, eqashwe yiJiangsuAokaiNewMaterialTechnologyCo., Ltd., isetshenziselwa i-bondpre-formed,thickPTFEfilmstofiberglassfabric.NgobaPTFEhasanextremelyhighmeltviscosity(approxim) ately10⊃1;⁰–10⊃1;⊃2;Pa·s),ayigelezi kayisikhombisa lapho ishiswa ngaphezu kwendawo yokuncibilika,i-sodirecthot-pressbondingingiakwenzeki.I-Amelt-processable'i-hot-meltadhesive'kumele isetshenziswe,imvamisa: Amafilimu e-FEP(fluorinatedethylenepropylene)orPFA(perfluoroalkoxy) ,okunamaphoyinti ancibilikayo aphansi kune-PTFE(cishe ama-260–310°C). Ngemva kokuncibilika, ayakwazi ukumanzisa ingilazi ye-fiberglassi-diffuse-diffuse/ncibilikisa nge-PTFEfil msurface.Intheprocess, theFEP/PFAfilmised betweenthePTFEfilmandthefiberglassfabric,heated and pressed,and aftercooling,astrongbondisformed.

5.Isakhiwo Se-Gradient NgeMijikelezo Eminingi Yokukhulelwa kanyeNe-Sintering

Amabhande amaningi okushisa okushisa aphezulu kanye nesakhiwo semembrane yezinto zokwakha zikhiqiza inqubo yokumithisa kaningi: Ukukhulelwa kokuqala kusebenzisa idilutePTFE ukuhlakazeka okuqukethe izibophezelo kanye nezihlanganisi, okuvumela okokuqala ukuthi kungene phakathi kwenqwaba yamafayibha. Ngemva kokungenela, ukukhulelwa okuningi okulandelanayo nge-PTFEemulsion emsulwa kanye nezinyathelo ezilandelanayo ezihlanganayo ziyakhishwa, kubangele ukuhlanzeka okukhuphukayo okuphakeme kwePTFE ebusweni. Lokhu kudala uhlaka olushintshashintshayo ngokwendawo olunezinga eliphansi ukusuka ku-fiber glassfabrictothepurePTFE,nowesifazane wangaphakathi ophansi kanye namandla okubopha aqinile.

Isiphetho

Kafushane, ukuhlangana phakathi kwe-PTFE enamathelayo kanye nendwangu yengilazi ye-fiberTeflonhigh-temperaturecloth ayifani neze'gluing'-yenza inkimbinkimbi(inqubo yobunjiniyela besistimu): ngokusebenzisa i-physicalanchoringtotakerootinthefibers, throughcou ama-plingagentandprimers ukuze kuzuzwe amakhemikhali amabhondi kanye noguquko, nangamazinga aphezulu okushisa ahlanganayo ukuze aqedele ukuncibilika-ukuhlanganiswa kwezendlalelo zefilimu.Uma kuphelapurePTFEbesihlanganiswe ngokuqondile, lonke uhlaka lwalungalingana nelinye.

Ulwazi olungenhla luhlinzekwa nguI-JiangsuAokaiNewMaterialTechnologyCo.,Ltd. Uma ungathanda ukufunda okwengeziwe ngamapharamitha anemininingwane, izimo zohlelo lokusebenza, kanye nezisombululo zokwenza ngokwezifiso zemikhiqizo yethu egcwele-okuhlanganisa indwangu ye-Teflonhigh-temperature, Teflonhigh-temperaturetap e,Amabhande e-Teflonhigh-temperature mesh,amabhande angenamthungo emishini yokuthambisa,indwangu yohlangothi olulodwaPTFE,amabhande okuhambisa ezinga lokushisa eliphezulu,indwangu yengilazi enezinga eliphezulu lokushisa,kanye nokunye–ngicela uzizwe ukhululekile ukuthintana: ~!phoenix_var143_1!~

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