Lamini nɛnɛ nɔ minnu bɛ PTFE Emulsion Impregnation (Emulsion Impregnation) la

PTFE fini funteni caman dilanni taabolo yɛrɛ la Jiangsu Aokai New Materials fɛ, a ka c’a la, sigida nɛnɛ bɛ kɔlɔsi 40%–60% RH hakɛ kɛrɛnkɛrɛnnen dɔ kɔnɔ , ka fara funteni hakɛ labɛnni kan. Ladilanni hakɛ bɛ ladilan walasa ka dɔgɔya dɔɔnin ka tɛmɛ ji min bɛ emulsi kɔnɔ kapilɛri tacogo hakɛ kan kapilɛri rezo kɔnɔ, o bɛ a to a ka don dafalen na ani ka emulsi kɛ ka a kɛ kelen ye ka sɔrɔ ka PTFE sintered films sɔrɔ minnu tɛ fiɲɛ sɔrɔ, minnu ka bon kosɛbɛ.

Lamini nɛnɛ bɛ nɔba min bila PTFE emulsiyɔn jiginni na, o bɛ balansi fangama la ji wulicogo ni emulsiɔn sabatili cɛ. A ka c’a la, PTFE emulsion ye ji ye min tɛ Newton ye, min bɛ kɛ ni PTFE resin fɛnɲɛnamafagalanw ye (fasa jɛnsɛnnen), surɔfɛnw, sabatilifɛnw, ani ji (fasa min bɛ taa ɲɛ). I n’a fɔ sigida laminiko paramɛtiri, nɛnɛ bɛ fɛnɲɛnamafagalan (ji) ka wulicogo ɲɛnabɔ, ka nɔ jɔnjɔnw bila nin cogo la:

1. A nɔ jɔnjɔn minnu bɛ sɔrɔ kɔnɔmaya taabolo la

Impregnation stage bɛ a ɲini emulsion fɛ a ka don ka ɲɛ substrat pores walima fibre gaps kɔnɔ (misali la, gilasi fibre fini, nɛgɛ mesh).

Lamini min nɛnɛ ka dɔgɔn : Ji bɛ wuli joona kojugu, o bɛ kɛ sababu ye ka emulsiɔn 'surface-dry' teliya la substrat kan. O bɛ dɔ fara kosɛbɛ emulsiɔn ka sɔgɔsɔgɔninjɛ jiralen kan a cɛmancɛ la, ka resin fɛnɲɛnamafagalanw doncogo bali ka don substrat juguman kɔnɔ ani ka kɛ sababu ye ka 'insuficient impregnation' — o kɔrɔ ye ko fiɲɛ tolenw bɔrɔw kɔnɔ substrat kɔnɔ. O waati kelen na, teliya la, funteni caman bɔli bɛ funteni caman bɔ, o bɛ se ka kɛ sababu ye ka sigida funteni jigin yɔrɔnin kelen, ka emulsiɔn sabati thermodynamique la ani ka surfactant sanji bila, o bɛ na ni 'orange peel' ye walima ka kɛ ni a janya tɛ kelen ye layɛrɛ min falen don.

Lamini min nɛnɛ ka bon : Ji wulicogo bɛ bali, wa emulsiɔn bɛ to jisuma cogo la min tɛ sɔgɔsɔgɔ kosɛbɛ substrat kan waati jan kojugu. Ni substrat jɔlen walima a jɛngɛlen don, sɛgɛn bɛ kɛ nɔgɔya la girinya kɔrɔ; ka ɲɛsin substratw ma minnu ji ka ca kosɛbɛ, nɛnɛba bɛ se ka gazi bɔli bali substrat kɔnɔ, ka microbubbles dilan minnu bɛ kɛ pinhole defects ye sintering kɔfɛ.

2. Fɛn minnu bɛ nɔba bila filimu labanw dilanni jogo la

A ka c’a la, PTFE filimu dilanni bɛ kɛ ni taabolo fila ye: jalen (ji bɔli) ani sintering funteni caman na (particules melting). Nɛnɛ bɛ nɔ bila kosɛbɛ farikolo jɛman jɔcogo la jalen waati, o min bɛ 'ciyɛn' sɔrɔ filimu sintiri laban na.

Kari ni kɔnɔna degun : PTFE resin fɛnɲɛnamafagalanw filimu dilanni bɛ tali kɛ kapilɛri tansiyɔn na ji wulituma na walasa ka fɛnɲɛnamafagalanw digidigi ka kɛ fɛn ye min bɛ pake caman na. Nɛnɛ dɔgɔya kojugu bɛ kɛ sababu ye ka dɔ fara kosɛbɛ kapilɛri tansiyɔn jiginni kan ani ka jalen teliya kojugu, o bɛ kɛ sababu ye ka kɔnɔna degunba lase farikolo jɛman kɔnɔ. Ikomi PTFE tɛ se ka a yɛrɛ kɛnɛya sani a ka kɛ sinter ye, o degun sugu bɛ na ni microcracks walima macroscope cracking ye farikolo jɛman na. O faraw tɛ se ka ban sintering kɔfɛ, o bɛ na ni filimu bɔli ye walima ka masin fanga dɔgɔya.

Surfactantw ka jiginni ni u tolenw : Surfactants (i n’a fɔ asidi perfluorooctanoïque nɔnabila) minnu bɛ jagokɛla ka PTFE emulsions kɔnɔ, olu bɛ taa ni ji wulilen ye jalen waati. Lamini min nɛnɛ ka bon, o bɛ jalen finɛtiri janya, o bɛ waati bɛrɛ di surɔfɛnw ma walasa u ka dalajɛ a sanfɛ, ka 'surface oil slick' walima fari gɛlɛn kɛ. Ni nin layini in ma toli pewu walima ni a ma wuli sintering daminɛ na, a bɛna kɛ carbonize ye ka don filimu kɔnɔ, o bɛ kɛ sababu ye ka jɛman kɛ, ka density dɔgɔya, ani ka nɔrɔli barika dɔgɔya kosɛbɛ PTFE ni substrate cɛ (interfacial bonding jugu ka da nɔgɔw bɔli kan).

Filimu density ani porosity : PTFE filimu ɲuman ka kan ka kɛ pinhole tɛ a la ani a ka kan ka den. Nɛnɛ hakɛ kɔlɔsili jugu min bɛ na ni ji tolen ye, o ye faratiba ye. Ni nɛnɛ ka bon, ni ji ma bɔ pewu funteni ni jalen waati la, ji tolen bɛ lafiɲɛbɔ o yɔrɔnin bɛɛ la sɔgɔli kɔfɛ (327–400°C ɲɔgɔn) ni a hakɛ cayalenba ye, o bɛ fiɲɛbɔyɔrɔw walima kurukuruw bila ɲɔgɔn cɛ filimu kɔnɔ min yɔrɔ dɔ wulilen don. O kɔfɛ, nɛnɛ dɔgɔyalenba la, yɔrɔ jalen teliya la, o bɛ fari datugulen dɔ dilan min bɛ kɔnɔna ji bɔli bali, o fana bɛ kɛ sababu ye ka kurukuruw walima delamination kɛ sintering waati la ka a sababu kɛ lafiɲɛbɔ tansiyɔn dalajɛlen ye.

Sariya siratigɛ la, sigida nɛnɛ nɔ min bɛ PTFE emulsiyɔn baarakɛcogo la, o ye fɛnba ye min bɛ kɛ ji labɔli kinetiki la:

·  Nɛnɛ dɔgɔyali (ja kojugu)  bɛ teli ka kɛ sababu ye ka : doncogo jugu, a bɛ kɛ cogo min na, a bɛ kɛ cogo min na, a bɛ kɛ sababu ye ka a kɛ cogo min na, o bɛ kɛ sababu ye ka a to a ka ja, ka a to a bɛ kɛ cogo kelen na.

·  Nɛnɛba (nɔgɔ kojugu)  bɛ teli ka kɛ sababu ye ka : sɔgɔsɔgɔ, pinɛw ka caya, surɔfɛnw ka wuli kojugu, kurukuruw bɔli sintering kɔfɛ, ani ka nɔrɔli dɔgɔya.

Kunnafoni minnu bɛ sanfɛ, olu dira Jiangsu Aokai New Materials Technology Co., Ltd fɛ.

Walasa ka paramɛtiri caman sɔrɔ, baarakɛcogo misaliw ani an ka fɛn dilannenw bɛɛ lajɛlen ɲɛnabɔcogo labɛnna, i n’a fɔ PTFE fini min bɛ funteni caman bɔ, PTFE kasɛti min bɛ funteni caman bɔ, PTFE cɛsirilan min bɛ funteni caman na, cɛsirilan minnu tɛ sɔgɔ, PTFE fini min bɛ kɛ fan kelen fɛ, cɛsirilanw minnu bɛ se ka funteni caman kɛlɛ, fini minnu bɛ se ka funteni caman kɛlɛ, a ɲɔgɔnnaw. aw bɛ se ka anw sɔrɔ:

·  Baarakɛyɔrɔ telefɔni nimɔrɔ: Mr. Guo 18944819998

·  Liu 13705266308 Bamako, Mali

An bɛ baarakɛcogo hakilila dɔ sabati min ɲɛsinnen bɛ baarakɛlaw ni danbe ma, wa an b’an yɛrɛ di ka fɛɛrɛw di aw ma yɔrɔ kelen na ani baara min bɛ kɛ ni jateminɛ ye