PTFE meléna ɖe glass fiber ŋu le dzɔdzɔme nu o. Ne womewɔ atike nyuie ɖe anyigba dzi o la, PTFE ƒe nutsyɔnu la nɔa edzi PTFE avɔ si me dzoxɔxɔ le ŋutɔ la avuvu abe soxle si me mekɔ o ene. Nya ɣaɣla la le nusiwo wotsɔna wua anyigba dzi – atike siwo wozãna ɖe fiberglass avɔ ŋu hafi wotsɔa nu tsyɔa edzi.
Nu siawo – vevietɔ organosilane coupling agents – wɔa dɔ abe molecule bridges ene, tsɔa atike blaa glass fiber si me agbe mele o la ɖe organic PTFE ŋu. Nusi koŋ tia atike si woatsɔ awɔ dɔe, eƒe agbɔsɔsɔme, kple alesi wòdaa gbee koŋue ɖoa lãgbalẽ ƒe ŋusẽ, dzoxɔxɔ ƒe tsitretsitsi, flex ƒe agbenɔƒe, kple dielectric ƒe dɔwɔwɔ.
Aokai PTFE na anyigbadzinuwuwu ƒe atikeŋutinunya nyo wu le ƒe bla nanewo ƒe ewɔwɔ me. Mɔfiame sia ɖe atike ƒe hatsotso veviwo me, woƒe ŋusẽkpɔɖeamedzi ɖe nunɔamesi veviwo dzi, kple nusita womate ŋu awɔ ɖoɖo ɖe atikewɔwɔ nyuie ŋu na PTFE avɔ nyuitɔ o.
Anyigbadzinuwo ƒe Ƒomedodo Veviwo
Do ŋgɔ na PTFE ƒe nutsyɔtsyɔ la, zi geɖe la, woɖea wax ɖa eye wowɔa dɔ ɖe edzi le fiberglass avɔa me. Woda atike siwo wozãna tsɔ daa dɔe ɖe hatsotsowo me le atikewo ƒe wɔwɔme nu abe alesi wòle ete ene:
Klasik atike si wotsɔ léa nu ɖe nu ŋu kaba; woɖee ɖa vivivi le nutome & nusiwo wogbugbɔ zãna ƒe dzitsitsiwo ta togbɔ be kadodo ƒe ŋusẽkpɔɖeamedzi ɖedzesi aɖe le eŋu hã
Nano Sol si me nugbagbeviwo mele o
Silika sol, alumina sol
Ewɔa nano-scale rough topography le fiber anyigba dzi na mɔ̃wo ƒe seke teƒewo; zi geɖe la, wotsɔa nusiwo wotsɔ blaa nu ɖekae
Polymeric Primer si Wotsɔ Ðoa Nui
PTFE / FEP / PFA kaka si ƒe molecule ƒe kpekpeme le sue, resin primer si wotsɔ tsaka kple coupling agent
Aokai PTFE zãa epoxy silane kple fluorinated coupling agents ƒe tsakatsaka si nye etɔ na míaƒe dzoxɔxɔ gã ƒe PTFE avɔ. Atike sia te ŋu nɔa te ɖe 260°C ƒe dɔwɔwɔ madzudzɔmadzudzɔe nu le dometsotso ƒe gbegblẽ manɔmee – si ŋu woda asi ɖo to dzoxɔxɔ ƒe tsitsi dodokpɔ siwo xɔa gaƒoƒo 3,000 me.
Atikewo ƒe kadodo + ŋutilã me tɔtɔ; nusi wotsɔ blae la tsi tre ɖe eƒe ʋuʋu le eƒe ƒoƒo enuenu kple dzoxɔxɔ ƒe ʋuʋu te
Ŋusẽkpɔɖeamedzi vevi aɖe: Peel ƒe ŋusẽe nye nu vevitɔ na flex ɖeɖiteameŋu ƒe agbenɔƒe kple delamination tsitretsitsi.
2. Dzoxɔxɔ ƒe Tsitretsitsi & Dzoxɔxɔ ƒe Liƒo
Dzoxɔxɔ gã-tsitretsitsi ƒe kadodonuwo (siwo me benzene alo heterocyclic xɔtuɖoɖowo le, le kpɔɖeŋu me, epoxy & acyloxy silanes aɖewo) te ŋu nɔa te ɖe 260°C si yia edzi kple taƒoƒo enumake >300°C – si sɔ kple PTFE subɔsubɔ ƒe nɔnɔmewo.
Nu gbagbewo ƒe kpeɖeŋutɔ siwo wozãna ɖaa la gblẽna le dzoxɔxɔ me le dzoxɔxɔ si kɔ me → dometsotso siwo le wo dome, amadede ɣi ƒe tɔtrɔ, nutsyɔnu ƒe spalling.
Dɔwɔwɔ ƒe gɔmesese: Le dzoxɔxɔ gã ƒe dɔwɔwɔwo gome la, kpɔ egbɔ be nusi wotsɔ wu enu la ŋutɔ li ke le dzoxɔxɔ me, ke menye PTFE ƒe nutsyɔnu la ɖeɖeko o.
Atike siwo wotsɔna daa dɔe siwo me tsi le alo esiwo me ion le la nana dielectric ƒe bublu dzina ɖe edzi. Woxɔ silane si me dzadzɛnyenye le ŋutɔ na PTFE avɔ si ƒe nyonyome de ŋgɔ be woaɖe ɖiƒoƒo ƒe nutete dzi akpɔtɔ.
4. Atikewo ƒe Tsitretsitsi & Tsi ƒe Mɔxenu
Agent Ƒomevi
Ƒe dᴐwᴐna
Nusi wotsɔ blaa nu si me fluorine le
Inherent hydrophobic & oleophobic properties → xea mɔ na tsi kple atike siwo gblẽa nu ƒe gege ɖe ʋukawo me → enaa tsidzadza-dzoxɔxɔ ƒe tsitsi, acid & alkali ƒe tsitretsitsi nyona ɖe edzi ŋutɔ
Nano sol si me agbe mele o
Mɔxenu si le ʋeʋẽm kpɔa glass fiber ta tso etching to hydrofluoric acid kple corrosive media dzi
5. Trɔtrɔ ɖe nɔnɔmewo ŋu & Fabricability
Memanu
Ƒe dᴐwᴐna
Nusiwo wodona fũu akpa alo esiwo me wotsɔa ƒuƒoƒo sesẽwo doa ŋusẽe
Se avɔ sesẽ, xe mɔ na avɔlɔlɔ̃ kple babla ƒe dɔwɔwɔ siwo kplɔe ɖo
Atikewɔwɔ kple kɔsɔkɔsɔ didi siwo te ŋu trɔna bɔbɔe silanes
Eléa pliability me ɖe asi evɔ metsɔa kadodo ƒe dɔwɔwɔ saa vɔe o
De dzesii ŋutɔŋutɔ: Ele be woada asɔ nyuie le nusi woatsɔ awu enu ƒe agbɔsɔsɔme si woatsɔ awɔ dɔe ŋu – ne wosɔ gbɔ akpa nana be womeléna ɖe nu ŋu nyuie o, ne wosɔ gbɔ akpa ɖea asitɔtrɔ le nɔnɔmewo ŋu dzi kpɔtɔna.
Kpuie ko la – Nusitae Anyigbadzinuwo Nuwuwu Le Vevie
Nunᴐamesi
Dɔdada Nyuitɔ ƒe Ŋusẽkpɔɖeamedzi
Atikewɔwɔ Gbegblẽ/Mawɔmawɔe ƒe Emetsonuwo
Peel ƒe ŋusẽ
4-8+ N/cm ƒe didime
<2 N/cm → delamination, ʋuʋu
Dzoxɔxɔ ƒe tsitretsitsi
Eli ke va ɖo 260°C+
Vovototo siwo le wo nɔewo dome, ɣie, spalling wu 200°C
Dielectric ƒe dɔwɔwɔ
Nutsyɔtsyɔ atraɖii, pinholes ʋɛ aɖewo
Dielectric ƒe bu si lolo wu, afɔku si le gbagbã me
Atikewo ƒe tsitretsitsi
Exea mɔ na tsidzadza/atikewo ƒe ʋukawo ƒe ʋuʋu
Glass fiber ƒe amedzidzedze, kpododonu kaba
Trɔtrɔ ɖe nɔnɔmewo ŋu
Eléa pliability me ɖe asi ne wowɔe wònyo wu
Avɔ sesẽ, si babla sesẽ
Key takeaway: Surface finishing agent nye mɔ̃ɖaŋununya vevitɔ na PTFE dzoxɔxɔ gã avɔ wɔwɔ. Organosilane coupling agents ye ɖua atike siawo dzi ta la, wowɔa molecule ƒe kadodo le inorganic-organic dome be woakpɔ PTFE ƒe dzɔdzɔme nu gbegblẽ si meléna ɖe fiberglass ŋu o gbɔ. Woawo koŋue dea dzesi lãgbalẽ ƒe ŋusẽ, flex ƒe agbenɔƒe, dzoxɔxɔ ƒe tsitretsitsi, elektrikŋusẽ ƒe mɔxexe, kple atikewo ƒe dɔmawɔmawɔ.
In summary , anyigbadzinuwunu si wotsɔ de fiberglass avɔ dzi hafi PTFE nutsyɔnu menye nu sue aɖe o – enye gɔmeɖoanyi na PTFE dzoxɔxɔ gã avɔ ƒe nyonyome. Organosilane ƒe kadodonuwo (amino, epoxy, fluorinated) wɔa molecule ƒe tɔdzisasrã veviwo le glass fiber kple PTFE dome, si doa ŋusẽ lãgbalẽ ƒe ŋusẽ tso <2 N/cm va ɖo 4-8+ N/cm. Dɔwɔwɔ nyuie hã nana dzoxɔxɔ ƒe tsitretsitsi (260°C+), nusi wotsɔ blaa nu ƒe ƒoƒo, dielectric ƒe dɔwɔwɔ, kple atike ƒe tsitretsitsi hã nyona ɖe edzi.
Ne èle PTFE avɔ tiam na dɔ sesẽwo wɔwɔ la, bia nu tso anyigbadzinuwuwu ƒe atike ŋu – ekpɔa ŋusẽ ɖe subɔsubɔ ƒe agbenɔƒe kple kakaɖedzi dzi tẽ. Ƒo asa na nusiwo womewɔ atike na o alo esiwo ŋu womewɔ atike ɖo nyuie o, siwo agbã le dzoxɔxɔ kple mɔ̃wo ƒe nuteɖeamedzi te.
Hiahiã na PTFE avɔ si ƒe dzoxɔxɔ deŋgɔ si ƒe nyonyome deŋgɔ si ƒe anyigba ƒe akpa si wowu enu nyuie wua? Aokai PTFE zãa coupling agent ƒe atike deŋgɔwo hena adhesion kple anyinɔnɔ deŋgɔ. Te ɖe mía ŋu nàgblɔ wò dɔbiagbalẽvi ƒe nudidiwo.
