PTFE tɛ nɔrɔ a yɛrɛ la gilasi fiyɛri la. Ni a ma furakɛ ka ɲɛ, PTFE dacogo bɛ don PTFE fini min funteni ka bon, o tun bɛna bɔ i n’a fɔ sosɛti lafiyalen. Gundo bɛ dugukolo sanfɛla finiw na – kemikɛli furakɛli minnu bɛ kɛ fibreglasi fini na ka sɔrɔ ka finimugu da.
O fɛnw – kɛrɛnkɛrɛnnenya la, organosiline coupling agents – bɛ kɛ i n’a fɔ molekiyɔmu bɔrɔw, ka gilasi fibre inorganique siri ni kemikɛli ye ni PTFE organique ye. Fɛnɲɛnɛma sugandili, a hakɛ, ani a furakɛcogo de bɛ a ɲɛkisɛ fanga, a ka funteni kunbɛnni, a ka flex life ani a ka dielektriki baarakɛcogo de latigɛ kosɛbɛ.
Aokai PTFE ye surface finishing chemistry ɲɛnabɔ ka ɲɛ san tan caman kɔnɔ a dilanni na. Nin gafe in bɛ fura suguya kunbabaw ɲɛfɔ, u nɔ bɛ se ka kɛ fɛn kolomaw la, ani mun na furakɛli ɲuman tɛ se ka kɛ PTFE fini ɲumanba la.
Sani PTFE ka kɛ, a ka c’a la, fibreglasi fini bɛ kɛ ni sizo bɔli ye ani ka a sanfɛla baara. Furakɛli furakisɛw bɛ tila ka kɛɲɛ ni furakisɛw ye i n’a fɔ a bɛ fɔ cogo min na:
A bɛ ɲɔgɔn sɔrɔ Si-OH fɛ ni hidroksili kuluw ye gilasi fiyɛri sanfɛ; organique functional groups bɛ kemikɛli jɛɲɔgɔnya walima farikolo sirili → molekiyɔmu bridges, o bɛ coating adhesion bonya kosɛbɛ
Titanate Couplage Agent ye
Monoalkɔkisi & kelati titanatiw
Funteni kunbɛncogo ɲuman min bɛ bɛn fluoropolimɛri sitɛmuw ma; bɛ PTFE jisigicogo ɲɛ fibreglasi kan, ka fɛnw cɛla tiɲɛni bali funteni caman na
Fluorine (Fluor) bɛ kɛ ni fɛn ye min bɛ kɛ ka fɛnw fara ɲɔgɔn kan
Pɛrfluoroalkili triɛtɔkisisilani
Surface energy ultra-low, PTFE bɛnkan min ka bon kosɛbɛ; perfluorocarbone cakɛda entanglement bɛ adhesion, hydrophobicity, antifouling baarakɛcogo ɲɛ
Chrome Complexe finimugu
Volan (metakiriloyi kuloridi kɔrɔmu) .
Klasik furakɛli fɔlɔ min bɛ kɛ ni nɔrɔli ye; a bɔra dɔɔnin dɔɔnin k’a sababu kɛ sigida & lasegincogo haminankow ye hali ni bonding effect outstanding
Nano Sol min tɛ fɛnɲɛnamaw ye
Silika sol, aluminiyɔmu sol
A bɛ nano-scale rough topography (nano-scale rough topography) dilan fibre surface kan masinw ka ankɔri yɔrɔw kama; a ka c’a la, a bɛ fara ɲɔgɔn kan ni ɲɔgɔndanfɛnw ye
Primer polimérique (Primère polimérique) ye
PTFE / FEP / PFA jɛnsɛnni min girinya ka dɔgɔn, resin primer min bɛ ɲagami ni coupling agent ye
A bɛ fluoropolymer transitional layer ultra-thin dilan fibreglasi kan walasa ka sanfɛla sirili nɔgɔya kɔfɛ; bɛ dɔ bɔ kosɛbɛ delamination farati la
Aokai PTFE bɛ baara kɛ ni epoxy silane ni fluorine coupling agents ɲagaminen ye min ye a yɛrɛ ta ye an ka PTFE fini na min bɛ se ka funteni caman sɔrɔ. Nin furakɛcogo in bɛ se ka baara kɛli ban 260°C kɔnɔ, k’a sɔrɔ a ma kɛ ni fɛnw ye minnu bɛ ɲɔgɔn cɛ – o bɛ tiɲɛ ni funteni kɔrɔya sɛgɛsɛgɛliw ye sanga 3000 kɔnɔ.
PTFE fini min bɛ funteni caman na, o nɔ min bɛ sɔrɔ a kolomayɔrɔw la
A bɛ kɛ ɲɔgɔndan ye gilasi fibre inorganique ni fluoroplastic organique cɛ, furakɛlifɛn hakɛ ni a baarakɛcogo de bɛ fanga sɔrɔ fɛn dilannenw bɛɛ lajɛlen ka baarakɛcogo la.
Kimiki sirili + farikolo sirili; coating bɛ se ka peeling kɛlɛ ni a bɛ segin-ka-bɔ a la ani ka a sɔgɔsɔgɔ ni funteni ye
Kɔnɔnafili jugumanba : Peel fanga de ye fɛn latigɛlen ye flex fatigue ɲɛnamaya ni delamination resistance.
2. Funteni kunbɛnni & Sumaya sabatili
Fura minnu bɛ se ka funteni caman kɛlɛ (bɛnzɛni walima hɛtɛrosiklikiw bɛ minnu na, misali la, epoyi & asilokisi silanɛ dɔw) bɛ se ka 260°C basigilen muɲu ani ka wuli yɔrɔnin kelen >300°C – ka bɛn PTFE baarakɛcogo ma.
Fɛnɲɛnamafagalan kɔrɔlenw bɛ tiɲɛ ni funteni ye funteni caman na → yɔrɔ lakolonw, u ɲɛ jɛman, u bɛ kɛ ka u datugu.
A kɛcogo kɔrɔ : Ni aw bɛ a kɛ funteni caman na, aw bɛ aw jija finimugu yɛrɛ ka sabati funteni na, a kana kɛ PTFE dacogo dɔrɔn ye.
3. Coating Compactness & Dielectric baarakɛcogo
Silane caman caman cili bɛ PTFE emulsiyɔn jɛnsɛnni ni a jigincogo ɲɛ fibre surface kan → a bɛ to ka kɛ compact coating ye ni pinholes ni microcracks ka dɔgɔn → a nafa ka bon ka ɲɛsin breakdown voltage ni insulation seko ma.
Furakɛli furakisɛ minnu bɛ ji sɔrɔ walima minnu nɔgɔlen don ni ion ye, olu bɛ dielektriki bɔnɛ wuli. Silane saniyalenba bɛ ta PTFE fini ɲuman na walasa ka nɔgɔko gɛlɛya dɔgɔya.
4. Kimiki Rezisti & Moisture Barrier
Agent suguya
Nɔ
Fluorine (Fluorin) bɛ kɛ ka fɛnw fara ɲɔgɔn kan
Ji ni tulumafɛnw danma → a bɛ ji ni furakisɛw doncogo bali joli la → a bɛ kɔrɔya ni funteni ni jisuma na, asidi & alkali kɛlɛli ɲɛ kosɛbɛ
Nano sol min tɛ fɛnɲɛnama ye
Barrière dense bɛ gilasi fibre lakana ka bɔ etching na asidi fluorique ni fɛnɲɛnamafagalanw fɛ
Fura minnu bɛ kɛ ka caya kojugu walima minnu bɛ sɔrɔ kulu gɛlɛnw na
Aw bɛ fini gɛlɛya, ka finidoncogo ni a sirili baara nataw bali
Furakɛcogo ni silanɛ janw ye minnu bɛ se ka wuli
A bɛ pliability mara k’a sɔrɔ a ma bonding performance saraka
Kɔlɔsili nafama : Fɛn min bɛ kɛ ka finimugu kɛ, o hakɛ ka kan ka bɛn ɲɔgɔn ma kosɛbɛ – ni a dɔgɔyara kojugu bɛ kɛ sababu ye ka nɔrɔli juguya, ni a caya kojugu bɛ dɔ bɔ fɛn caman sɛgɛsɛgɛli la.
Kuma surun – Mun na Surface Finishing Agents nafa ka bon kosɛbɛ
Ta
Furakɛli min bɛ kɛ ka ɲɛ, o nɔ
Furakɛli jugu/Furakɛbaliya kɔlɔlɔ
Peel fanga
4-8+ N/cm ye
<2 N/cm → delamination, bugun
Funteni kunbɛnni
A bɛ sabati fo ka se 260°C+ ma
Yɔrɔw ni ɲɔgɔn cɛ yɔrɔ lakolonw, u bɛ kɛ jɛman ye, u bɛ wuli ka tɛmɛ 200°C kan
Dielektriki baarakɛcogo
Aw bɛ to ka finimugu da, pinɛw ka dɔgɔn
Dielektriki bɔnɛ ka bon, a tiɲɛni farati
Kemisɛnniw ka se ka banakisɛw kɛlɛ
A bɛ ji/chimique capillaire wicking bali
Glass fibre binkanni, dɛsɛ joona
Fɛn min bɛ se ka fɛn caman sɛgɛsɛgɛ
A bɛ pliability mara ni a kɛra optimisé ye
Fini gɛlɛn, a sirili ka gɛlɛn
Fɛn min bɛ taa ni a ye: Surface finishing agent ye fɛɛrɛ jɔnjɔn ye PTFE finiw dilanni na minnu ka funteni ka bon. O kemikɛli ninnu bɛ fanga sɔrɔ organosiline coupling agents fɛ, u bɛ molekiyɔmu jɛɲɔgɔnya dilan inorganic-organic interface la walasa ka PTFE ka nɔrɔbaliya danma ɲɛnabɔ fibreglasi la. U bɛ peel fanga, flex ɲɛnamaya, funteni kunbɛnni, kuran insulation, ani kemikali inertness (kemisɛnw ka baarakɛbaliya) dantigɛ kosɛbɛ.
Kuma surun na , sanfɛla fini min bɛ kɛ fibreglasi fini na ka kɔn PTFE dacogo ɲɛ, o tɛ ko fitinin ye – o ye PTFE finimugu ɲuman jusigilan ye min funteni ka bon. Organosilane coupling agents (amino, epoxy, fluorine) bɛ molekiyɔmu dancɛ nafamaw dilan gilasi fiyɛri ni PTFE cɛ, ka ɲɛgɛnw fanga bonya ka bɔ <2 N/cm na ka se 4-8+ N/cm ma. Furakɛli ɲuman fana bɛ funteni kunbɛnni (260°C+), finimuguw ka ɲɔgɔndɛmɛ, dielektriki baarakɛcogo, ani kemikaliya kunbɛncogo fana sabati.
Ni aw bɛ PTFE fini sugandi baara gɛlɛnw kama, aw bɛ ɲininkali kɛ a sanfɛla finimucogo la – a bɛ nɔ bila baara ɲɛnamaya ni dannaya la k’a ɲɛsin a ma. Aw bɛ aw yɛrɛ tanga fɛnw ma minnu ma furakɛ walima minnu furakɛra ka ɲɛ, olu bɛna delaminate ni funteni ni masinw degun kɔrɔ.
Aw mago bɛ PTFE fini ɲumanba la min ka funteni ka bon ni a ɲɛda fini ye min ka ɲi wa? Aokai PTFE bɛ baara kɛ ni coupling agents formulations avancées ye walasa ka nɔrɔli ni muɲuli ɲuman sɔrɔ. Aw ye anw sɔrɔ ni aw ka ɲinini wajibiyalenw ye.
Ni aw b’a fɛ ka fɛn ɲɛfɔlenw ɲɛfɔ, ka baarakɛcogo ɲɛminɛ, ani ka fɛnw ɲɛnabɔ minnu bɛ kɛ ka kɛɲɛ ni mɔgɔw sago ye: PTFE fini min bɛ kɛ ni temp kɔrɔ ye, fini min bɛ PTFE nɔrɔ, PTFE cɛsirilan min tɛ sɔgɔ, fini min dilannen don ni PTFE ye, o ye fini ye min bɛ se ka funteni kɛlɛ & fini min bɛ fibreglasi funteni na , aw bɛ se ka anw sɔrɔ:
