PTFE fini min bɛ funteni caman bɔ (PTFE-coated fibreglass) ka ɲi dɔrɔn i n’a fɔ fɛn fɔlɔ minnu bɛ kɛ ka a dilan. Fɛn fila de nafa ka bon: PTFE resin/emulsion (a dacogo) ani fibreglasi substrat (a barika bonya). Nɔgɔ minnu bɛ o fila la kelen na – nɛgɛ ionw, polimɛriw, polimɛri minnu girinya ka dɔgɔn, hakɛ tolenw, walima alkali ɔkisizɛni – olu bɛ se ka kɛ sababu ye ka dɛsɛ joona: ka kɛ jɛman ye, ka kari, ka non-stick bɔnɛ, ka delamination, walima ka insulasi tiɲɛ.
Aokai PTFE bɛ baara kɛ ni fɛnɲɛnamafagalanw ye minnu saniyalen don kosɛbɛ ani baarakɛcogo kɔlɔsili gɛlɛn. Nin gafe in b’a ɲɛfɔ cogo min na saniya bɛ nɔ bila baarakɛcogo kelen-kelen bɛɛ la ani mun na a nafa ka bon baarakɛcogo gɛlɛnw na.
PTFE Raw Material Purity – Nɔgɔ jumɛnw bɛ yen?
Nɔgɔ minnu ka teli ka sɔrɔ PTFE kɔnɔ olu ye:
Monomɛri minnu ma kɛ fɛn ye ani polimɛri minnu girinya ka dɔgɔn
Tolenw daminɛfɛnw ni u jɛnsɛnnifɛnw (misali la, PFOA) .
Nɛgɛ ion (nɛgɛ, nɛgɛ, soja) .
Baarakɛminɛnw ni a kɔfɛfɛnw
Saniya ka bon, o b’a to fɛn bɛ se ka baarakɛcogo di ka surunya fɛn ɲɛfɔcogo ɲumanw na.
1. Funteni kunbɛnni ani funteni sabatili
Nɛgɛ ionw (nɛgɛ, nɛgɛ, soja) bɛ kɛ fɛn barikamaw ye PTFE ka funteni tiɲɛni na . Ni baara kɛra waati jan kɔnɔ ka tɛmɛ 260°C kan, hali nɛgɛ nɔgɔlenw bɛ molekiyɔmu cakɛda kari teliya, o bɛ kɛ sababu ye ka cakɛda kari joona ani ka kari. PTFE min saniyalen don kosɛbɛ, o bɛ funteni tiɲɛni funteni caman jira, a bɛ to finman saniyalen ye, wa a bɛ jɛman kɛlɛ ka ɲɛ.
2. Baarakɛcogo min tɛ nɔrɔ ye ani a ɲɛda cogoya
Polimɛri minnu girinya ka dɔgɔn ani tulumafɛnw bɛ wuli ka taa finimugu sanfɛ sintering (sintering) funteni caman na, ka kɛ sanjiw ye.
Fɛn min tɛ nɔrɔ, o tiɲɛnen : A ɲɛda bɛ kɛ nɔrɔlen ye ani a ka teli ka nɔrɔ fɛnw na minnu dilannen don (dumuni, nɔrɔlanw).
Nɔgɔli farati : Dumuni suguya ni furakɛli siratigɛ la, sanji minnu bɛ taa yɔrɔ wɛrɛw la, olu bɛ se ka fɛnw nɔgɔ ani ka saniya sariyaw tiɲɛ. Saniya ye taamasiɲɛ jɔnjɔn ye PTFE finiw na minnu bɛ se ka ɲɔgɔn sɔrɔ dumuni na.
3. Kuranko insulasi baarakɛcogo
Nɔgɔ ionw (nɛgɛ katiyɔnw, halojeni ionw) bɛ kɛ charge carriers ye, o bɛ dɔ bɔ kosɛbɛ volume resistivity ni breakdown voltage la. Ni aw bɛ baara kɛ ni fɛnw ye minnu bɛ fɛnw tanga kosɛbɛ (misali la, kuran fɛnɲɛnamafagalanw), fɛnɲɛnamafagalanw saniya nafa ka bon kosɛbɛ. Poro minnu bɛ sɔrɔ nɔgɔ fɛ, olu fana bɛ se ka kɛ sababu ye ka ji bɔ yɔrɔ dɔ la.
4. Kemisɛnniw ka se ka ɲɔgɔn kɛlɛ ani u ka ɲɔgɔndɛmɛ
Nɔgɔ minnu bɛ se ka wuli, olu bɛ bɔ ni u bilala kemikɛlifɛnw na, ka mikro-porow to finimugu kɔnɔ. O fiɲɛw b’a to gazi ni ji min bɛ fɛnw tiɲɛ, olu ka don fibreglasi substrat kɔnɔ ka u tiɲɛ, o bɛ fini ka barika baarakɛcogo tiɲɛ.
Ni funteni ka bon, nɛgɛ alkali ion minnu bɛ bɔ gilasi saniyalen dɔgɔman na, olu tɛ fini yɛrɛ fanga dɔgɔya dɔrɔn, nka u bɛ PTFE dacogo tiɲɛni fana kɛ , ka dɛsɛ bɛɛ lajɛlen teliya. Ka fara o kan, gilasi cɛmancɛ/alkali caman bɛ ji minɛ, o bɛ kɛ sababu ye ka insulasi reziti jigin kosɛbɛ.
2. Sizing agents – nɔgɔ tɔ kelen
Sizeriw (amidon, PVA, tulu) bɛ kɛ fibreglasi sɔgɔli waati walasa ka fiɲɛw lakana. Ni a ma bɔ pewu sani PTFE ka kɛ, fɛnɲɛnamafagalan tolenw bɛ kɛ karɔbɔni ye, ka toli, ka gazi kɛ sintering waati la 400°C kɛrɛfɛ.
Sanfɛla nafamafɛnw : A ɲɛ jɛman bɛ wuli, a bɛ kɛ nɛrɛmuguma ye, a bɛ kurukuruw bɔ – furaw tɛ se ka yecogo sɛgɛsɛgɛ.
Farikolo ni ɲɔgɔn cɛ jɛɲɔgɔnya barikama : Karɔbɔli tolenw bɛ kemikali ni farikolo jɔli bali PTFE ni fibreglasi cɛ, o bɛ kɛ sababu ye ka delamination, blistering ani peeling kɛ baara kɛtuma na.
3. Sɛgɛnbaliya kɛlɛli
Fiɲɛ bugun fitininw ni nɔgɔ kristali minnu bɛ fibre de verre filaments kɔnɔ, olu bɛ dɔ bɔ fibre kelen-kelen bɛɛ ka sɔgɔli fanga la. Ni a bɛ segin-ka-bɔ, o fiɲɛ ninnu bɛ kɛ degunw sɔrɔyɔrɔw ye, o bɛ kɛ sababu ye ka fiɲɛ kari joona ani ka dɔ bɔ kosɛbɛ sɛgɛsɛgɛli ni flex life la.
Kuma surun – Saniya bɛ baarakɛcogo sanfɛla sigi
Materiel première saniya bɛ PTFE finiw ka baarakɛcogo jɔnjɔn bila:
PTFE min saniyalen don kosɛbɛ, o bɛ ninnu dantigɛ: baarakɛyɔrɔ funteni hakɛ min ka bon (260°C+), a sabatili min tɛ nɔrɔ waati jan kɔnɔ, kuran sɔgɔli min bɛ se ka da a kan, ani dumuni ni ɲɔgɔn cɛ sariyaw labatoli.
Fibreglasi saniyalenba min tɛ alkali ye (E-glass, Na2O <0,8%) ka fara a bonya bɔli garanti kan ka ɲɛ: substrat fanga funteni caman na, a hakɛ sabatili, ani a dacogo sabatilen nɔrɔli ni delamination tɛ.
Saniyabaliya bɛrɛbɛrɛ tɛ jɛgɛnsira si la , o bɛna kɛ sababu ye ka dɛsɛ joona – ka kɛ jɛman ye, ka sɔgɔsɔgɔ, ka fɛnw tiɲɛ, ani ka fɛnw bɔnɛ minnu tɛ nɔrɔ – kɛrɛnkɛrɛnnenya la ni cogoya gɛlɛnw ye: funteni camanba kuntaalajan, tension caman, walima saniya wajibiyalen gɛlɛnw.
Aokai PTFE bɛ PTFE emulsiyɔn saniyalenba dɔrɔn de sɔrɔ (nɛgɛ ion dɔgɔman, oligomɛri dɔgɔman) ani E-glas fibreglasi fini (alkali tɛ min na, a saniyalen don ni funteni ye pewu). An bɛ fɛnw seereyaw di ani an bɛ se ka dɛmɛ don dumuni suguya ni insulasi caman baarakɛcogo la. Aw ye anw sɔrɔ walasa ka kunnafoni caman sɔrɔ.
N’aw b’a fɛ ka kunnafoni caman sɔrɔ fɛn ɲɛfɔlenw kan, baarakɛcogo misaliw ani furaw kan minnu bɛ kɛ ka kɛɲɛ ni mɔgɔw sago ye an ka fɛn dilannenw bɛɛ lajɛlen na, i n’a fɔ PTFE finiw minnu bɛ funteni caman bɔ, PTFE kasɛti minnu bɛ funteni caman bɔ, PTFE cɛsirilanw, sirili masinw cɛsirilanw, PTFE fini fan kelen, fɛnɲɛnamafagalanw minnu bɛ se ka funteni caman kɛlɛ ani fibreglasi minnu bɛ se ka funteni caman kɛlɛ finiw, aw bɛ se ka anw sɔrɔ:
