Aleke PTFECoatingonTeflonAvɔ si ƒe dzoxɔxɔ de ŋgɔ la léna ɖeFiberglassFabric ŋui?
PTFE(polytetrafluoroethylene)meŋusẽ si bɔbɔ ŋutɔ le anyigba dzi eye womenyae nyuie be enye nu si meléa nu ɖe nu ŋu o.Eyata,mate ŋu atsɔ atikewo ablae tẽe kple fiberglassfabrik abe nutsyɔnu dzrowo ene o.Etsɔa Teflon ƒe dzoxɔxɔ si kɔkɔ ƒe dodokpɔ klẽnɛ othmanufacturer–JiangsuAokaiNewMaterialTechnologyCo.,Ltd.,kadodo si le wo ame evea dome la nye nusi wokpɔna zi geɖe to ŋutilã me seƒoƒotsihe kple mɔ̃wo ƒe kadodo me, si wotsɔa atikewɔmɔ̃wo ƒe atikewɔwɔ na rhot-meltadhesioncompositeffects kpena ɖe eŋu.
Mɔnu tɔxɛ siwo wozãna tsɔ blaa Teflon avɔ si ƒe dzoxɔxɔ lolo la dometɔ aɖewoe nye esiawo:
1.Mɔ̃ɖaŋununyaInterlocking (ŊutilãmeBonding) . Esiae nye mɔnu vevitɔ kekeake.Fiberglassfabricit ŋutɔ nyea avɔ si me ʋuʋudedi le.NePTFEemulsion alo dispersionisitregnatedoredorcoated on the fiberglassfabric, thePTFE gena ɖe dometsotsowo kple nutometsoƒewo me le fibers dome.Le ƒuƒu kple dzoxɔxɔ si nu sẽ megbe intering(anɔ abe 360–400°C),PTFEparticlesmeltintoacontinuous film, sesĩe léa fiberbundles abe'anchohooks manyaxlẽwo ene.'Gake, ŋuɖoɖo ɖe mɔnu sia ɖeɖeko ŋu gakpɔtɔ hea kadodo ƒe ŋusẽ si seɖoƒe li na, eye zi geɖe la, ebiaa afɔɖeɖe bubuwo.
Esia kloe nye dɔwɔwɔ vevi si wowɔna na avɔ siwo ƒe nyonyome de ŋgɔ ŋutɔ.
Thesilane(siloxygroup) ƒe nuwuwu ɖeka, le hydrolysis megbe la, ate ŋu atsɔ atikewo awɔ ɖeka kple hydroxylgroups(-OH) le glass fibers ƒe anyigba dzi;
Bubu, si me nugbagbewo ƒe dɔwɔwɔ ƒe ƒuƒoƒowo le, ate ŋu atso kadodo alo axɔ nu kple nulénu ƒe akpa si le fluorinatedprimer me le fufɔfɔ alo nutsyɔnu si kplɔe ɖo me.
3.DzɔdzɔmeŋusẽŋununyaPrimerTransitionLayer
PTS ƒe nutsyɔtsyɔ tẽe wɔnɛ be womeléna ɖe nu ŋu nyuie o le edede vɔ megbe, zi geɖe la, wotsɔa primari si wotsɔ tsi wɔe la dea fiberglassfabric dzi gbã.Zi geɖe la, primer layer sia me:
Adhesiveresins: Abe polyamide-imide(PAI),polyphenylenesulfide(PPS),polyethersulfone(PES),alo polyetheretherketone(PEEK),siwo ƒe tsi nyuie eye woléna ɖe glass fibers ŋu sesẽ, eye woate ŋu anɔ te ɖe ata ƒe dzoxɔxɔ si kplɔe ɖo nu le PTFE si le wo dome.
PTFEmicropowder: Be woakpɔ egbɔ be PTFE gbãtɔ kple mamlɛtɔ na fefewɔla ate ŋu aƒo ƒu ɖekae.
Primer layer sia ɖoa atikewo ƒe kadodo kple ŋutilã me kadodo kple fiberglassfabric si ŋu wowɔ atike na le coupling-agent gbɔ, si wɔa tɔtrɔ ƒe ƒuƒoƒo sesẽ aɖe.Emegbe PTFEtofefewɔla la tsɔa PTFE ƒe akpa aɖe ƒoa ƒui le primer la me le ɣeyiɣi si me wole eƒom, si wɔnɛ be wòkpɔa ŋusẽ si lolo wu le mɔ si mele tẽ o nu.
4.Hot-MeltAdhesiveFilmLamination (LaminationMɔnu) Mɔnu sia, siJiangsuAokaiNewMaterialTechnologyCo.,Ltd., zãna tsɔ blaa kadodo si wowɔ do ŋgɔ, si le kpekpem le PTFEfilm me ɖe fiberglassfabric me.Elabena PTFE ƒe ʋeʋẽ lilili si lolo ŋutɔ(anɔ abe ately10¹0–10¹²Pa·s), sina adre ne wodo dzo ɖe eƒe ʋeʋẽ ƒe teƒe dzi, aleae womate ŋu awɔe o.Ele be woazã amelt-processable'hot-meltadhesive',zi geɖe la: FEP(fluorinatedethylenepropylene)aloPFA(perfluoroalkoxy)filmwo ,siwo ƒe dzoxɔxɔ ƒe teƒewo bɔbɔ wuPTFE(anɔ abe 260–310°C ene).Le wo tsɔtsɔ vɔ megbe la, woate ŋu atsyɔ fiberglassfabricandinter-diffuse/meltwiththePTFEfil msurface.Le dɔwɔwɔ me la, woda FEP/PFAfilm la ɖe PTFEfil kple fiberglassfabric dome, wodo dzoe eye womie,eye wofae vɔ megbe, wogblẽe sesĩe.
Wowɔa dzoxɔxɔ si lolo ƒe mɔ̃ geɖe siwo tsɔa nu geɖe kple xɔtuɖaŋu ƒe membranenuwo to tsidedee ƒe mɔnu geɖe dzi: Fufɔfɔ gbãtɔ zãa dilutePTFEdispersion si me binnders kple couplingagents le, si wɔnɛ be primer la gena ɖe fiberbundles la me goglo. Le tsinyenye megbe la, wowɔa fufɔfɔ geɖe siwo kplɔe ɖo kple PTFE emulsion dzadzɛ kple afɔɖeɖe siwo kplɔ wo nɔewo ɖo, si wɔnɛ be PTFE ƒe dzadzɛnyenye si lolo wu le anyigba dzi. Esia wɔa tɔtrɔ ƒe ƒuƒoƒo si le nuwo ƒe wɔwɔme nu tso fiberglassfabrictothepurePTFE me, si me ŋusẽ si le ememe kple kadodoŋusẽ sesẽ le.
Nyanuwuwuw
Kpuie ko la, kadodo si le PTFEcoating kple fiberglassfabricin Teflon si ƒe dzoxɔxɔ lolo dome la menye 'gluing' ko o–enye nusi sesẽ (ɖoɖowɔɖi ƒe mɔ̃ɖaŋudɔwɔwɔ ƒe ɖoɖo): to ŋutilã me seƒoƒotsihe be woatsɔ ke axɔ kaawo me, to cou dzi plinggents kple primerwo nate ŋu aɖo atikewo ƒe kadodo kple tɔtrɔ gbɔ, eye to dzoxɔxɔ kɔkɔwo me be woawu film ƒe ƒuƒoƒoawo ƒe melt-integration nu.Nenye be wofae tẽe le PTFE dzadzɛwo me la, layer bliboa aʋuʋu kple lear ɖeka.
