Coating uniformity during PTFE emulsion impregnation of fibreglass fabric ye fɛn dilannenw ka ɲɛnamaya sira ye. Dacogo kelen tɛ sababu ye: a tɛ nɔrɔ (a bɛ nɔrɔ yɔrɔ finmanw na), masinw barika dɔgɔyali (degun hakɛ, a tigɛcogo), kuran basigibaliya (a tiɲɛni wulicogo bɛ jigin ka se 1/10 ma), kemikoro doncogo (pinhole corrosion), hakɛ koɲɛw (warpage), ani baarakɛcogo juguw (cɛsirili yaala, a janya caman ɲɔgɔnna). Datugulan kelen bɛ emulsiyɔn sɔgɔli, a kɔnɔfɛnw, finimugu sɔgɔli, sɔgɔsɔgɔninjɛ yɔrɔw, ani jalen/sintering profiles multi-zone (yɔrɔ caman jalen/sintering profiles) kɔlɔsili tigitigi de wajibiya.

PTFE fini min ka funteni ka bon, o ka coefficient de expansion thermal (CTE) ye 30-60 ppm/°C (warp/weft) ye – a ka bon ni fibreglasi dɔrɔn ye nka a ka dɔgɔ kosɛbɛ ka tɛmɛ PTFE saniyalen kan (100-200 ppm/°C). PTFE bɛ yɛlɛma barikama kɛ a hakɛ la (1-2%) 19°C ni 30°C fasa jiginniw na. Walasa ka i yɛrɛ tanga bugunni, tigɛtigɛli ani delamination ma: dilan yɔrɔw dilan walasa ka bonya hɔrɔnya la, ka i yɛrɛ tanga tensions ma fasa jiginni funteni fɛ, ka baara kɛ ni otomatiki tensioners ye conveyor belts kan, ani ka anti-buckling overlap design kɛ. Sɛgɛsɛgɛli kɛli tuma bɛɛ ni nɛnɛ bɛ ji bɔ, o nafa ka bon.

PTFE finimugu tobilikɛminɛn minnu funteni ka bon, olu bɛ nafa jɔnjɔn naani di: baarakɛcogo min tɛ nɔrɔ (tulu walima mugu tɛ mako ɲɛ, patisri nɔgɔlenw bɛ bɔ ka saniya), funteni hakɛ caman (-70°C fo 260°C, farati tɛ foro la ka taa konfirɛzi la), u bɛ se ka baara kɛ kokura (a bɛ kɛ siɲɛ ba caman ye, a saniya ka nɔgɔn), ani hali funteni tali (a bɛ jeni bali, ka ɲɛda kɛ ni balansi ye). Dumuni hakɛ bɛ FDA labato, u bɛ mɛn ka tɛmɛ parchement papier kan ani u bɛ baara kɛ ka tɛmɛ silikɔni matarafali kan ni funteni jiginni ka fisa ani ni u ɲɛda cogoya ka ɲi.

PTFE fini min funteni ka bon, o nafa ka bon finiw ni ɲɔgɔn cɛ baara la. Baarakɛcogo kolomaw : fɛnɲɛnamafagalanw sirilan minnu tɛ ban, minnu bɛ kɛ ka fɛnɲɛnamafagalanw kɛ minnu bɛ to ka wuli (a bɛ fɛn sumalenw nɔrɔli bali, ka fɛnw ta minnu tɛ kurukuru), datugulan min tɛ nɔrɔ ani ka fini min bɛ kɛ ka fɛnw datugu funteni sɔgɔlanw na (a bɛ platiw tanga nɔgɔli ma minnu bɛ kɛ ni nɔrɔli ye), fɛnɲɛnamafagalan minnu bɛ kɛ ka dot paste/powder coating lines (dot paste/powder coating lines (a bɛ nɔrɔlenw mara minnu ma tiɲɛ u jalen/sɔgɔli waati), ani nɛgɛ sanbara datugulanw walasa ka misali digi. A janya bɛ daminɛ milimɛtɛrɛ 0,13 na (padding light) ka se 0,55mm ma (conveyor belts gɛlɛnw).

Fibreglasi fini funteni dɔgɔyali ye PTFE kaseti hakɛ basigibaliya sababu fɔlɔ ye. Ni PTFE sintering funteni ye (360-400°C), sɔgɔli degun tolenw bɛ bɔ. Ni a ma minɛ, fini bɛ dɔgɔya; ni a balilen don, degun dogolenw bɛ datugu, o bɛ kɛ sababu ye ka a dɔgɔya kɔfɛ nɔrɔlen furakɛli waati (150-200°C) ani baara laban sumaya waati. Furakɛcogo : aw bɛ fibreglasi min bilalen don ka kɔn funteni ɲɛ, ni a dɔgɔyara <0,5% ye 400°C la, ka degun tolenw ban sani aw ka a datugu.

PTFE fini min bɛ funteni caman na (fibreglasi min datugulen don ni PTFE ye) bɛ se ka kemikaliya kɛlɛ cogo kɛrɛnkɛrɛnnen na, a bɛ asidi caman muɲu (aqua regia fana sen bɛ o la), alkali barikamaw (so funteni na), fɛnɲɛnamafagalanw, ani oksidanw. Danfara minnu tɛ o la: alkali nɛgɛw wulilenw ni halojeni fɛnɲɛnamafagalan minnu funteni ka bon, olu bɛ bin PTFE kan. Datugulan tiɲɛni bɛ fibreglasi bila asidi fluorique ni alkali funtenimanw na. Funteni min bɛ tɛmɛ 260°C kan, o bɛ dɔ bɔ a kɛlɛli la. Kemikɛli sigida fanba la, PTFE fini bɛ to ka sabati kosɛbɛ ani ka da a kan.

PTFE emulsion impregnation of fibreglass fabric bɛ dɛmɛnan suguya caman de wajibiya walasa ka se ka finimugu kelen sɔrɔ, ka nɔrɔ barikama sɔrɔ, ani ka yɔrɔw sɔrɔ minnu tɛ fiɲɛ sɔrɔ. Fɛn minnu bɛ fara a kan, olu ye : jisumafɛnw (u bɛ dɔ bɔ dugukolo sanfɛla la, ka doncogo ɲɛ), fɛn minnu bɛ kɛ ka fɛnw falen (ka u ka sɔgɔsɔgɔninjɛ ni u dacogo girinya kɔlɔsi), pH ɲɛnabɔlanw (ka emulsion sabati pH 9-10 na), silane coupling agents (ka nɔrɔli sabati gilasi la), filimu dilanni dɛmɛnanw (PFA/FEP for sintering), fillers functional (sɔgɔli kunbɛnni, conductivité), defoamers (aw bɛ a bali pinɛw), ani jisumafɛnw (minnu bɛ ja dɔɔni dɔɔni). Sugandili bɛ bɔ substrat ni baarakɛcogo wajibiyalenw na.

Fibreglasi fini min bonyalen don (finimugu belebeleba) ni fibreglasi fini kɔrɔlen tɛ kelen ye kosɛbɛ jiri jɔcogo la. Fiɲɛ min bɛ kɛ ni tansiyɔnba ye, o furakɛli fɛ, gilasi fila minnu bɛ to sen na, olu bɛ faranfasi, ka u sɔgɔ, ka u wuli ka kɛ jiri belebelebaw ye, minnu bɛ i n’a fɔ cotton. O bɛ finimugu gɛlɛnw dilan, minnu ka nɔgɔn, ni funteni-minɛn ka fisa (fiɲɛ-yɔrɔ minnu sirilen don), a bɛ se ka bɛn ɲɔgɔn ma ka ɲɛ, a bɛ se ka filɛri kɛ ka ɲɛ, ani a bɛ ɲɛjibɔ/flexion (jibɔ) kunbɛncogo ɲɛ – o musaka bɛ dɔgɔya dɔɔnin. A bɛ kɛ gaziw ye minnu funteni ka bon, pibilikiw sirilanw, filɛri bɔrɔw ani foronto datugulanw.

PTFE fini min bɛ funteni caman na (fibreglasi min dilannen don ni PTFE ye) bɛ ɲini ka kɛ fɛn ye min tɛ se ka kɛ kemikoro la, nka fɛn dɔw bɛ kɛ sababu ye ka sɔgɔli kɛ cogo kɛrɛnkɛrɛnnenw na. PTFE binkanni tilennen bɛ kɛ ni alkali nɛgɛw wulilenw ye (sodiyɔmu, potasiyɔmu), ni fluorin barikamaw (F2, ClF3) ye funteni caman na, ani alkali barikamaw wulilenw ye minnu ka ca ni 300°C ye. Nɔgɔli indirect bɛ kɛ ni asidi fluorique (HF), alkali funtenimanw, walima asidi fosifɔriki funteniman donna finimugu nafamaw kɔnɔ ka bin fibreglasi substrat kan. Ni aw bɛ baara kɛ ni kemikɛli ye kosɛbɛ, aw bɛ PTFE filimu saniyalen kɛ ni fibre de verre tɛ a la.

PTFE fini min bɛ funteni caman bɔ (PTFE-coated fibreglass) bɛ ni funteni sɔgɔli kunbɛncogo ɲuman ye a ka baarakɛcogo la min bɛ se ka kɛ -70°C fo 260°C. A bɛ se ka funteni sɛgɛsɛgɛli teliya muɲu, misali la, a bɛ bɔ -50°C konfirɛzi la ka taa 260°C funtenimada la. Premium grades yɛrɛ bɛ kisi nɛnɛ barikama ma ka bɔ 260°C la ka taa 10°C ji la. Nka, ni i ye fɛn in kabakoya ka bɔ funteni na min ka ca ni 300°C ye (PTFE ka 327°C wuliyɔrɔ kɛrɛfɛ) o bɛna kɛ sababu ye ka kari teliya la ani ka delamination kɛ. Fibreglasi substrat bɛ dimension sabatili di; PTFE dacogo de ye dantigɛli ye.