PTFE Emulsion Quality Sɛgɛsɛgɛli cogo: 6 Core Indicators & Methods

PTFE emulsion – a bɛ fɔ fana ko PTFE dispersion – ye fɛn fɔlɔ ye min bɛ kɛ ka fibreglasi fini datugu walasa ka a dilan PTFE fini min bɛ funteni caman bɔ , kasetiw, ani cɛsirilanw. Ni emulsiɔn jogo banna, a laban bɛna kɛ ni baara kɛcogo jugu ye min tɛ nɔrɔ, a dacogo tɛ kelen ye, walima a bɛna dɛsɛ joona.

Nka aw b’a dɔn cogo di ni PTFE emulsion kulu dɔ ka ɲi? I b’a kɔrɔbɔ.

Aokai PTFE ye baara kɛ ni PTFE emulsiɔnw ye ani k’u kɔrɔbɔ kabini san caman. Nin gafe in bɛ sɛgɛsɛgɛli taamasiɲɛ jɔnjɔn wɔɔrɔ ɲɛfɔ – fɛn girinmanw, pH, fɛnɲɛnamafagalanw hakɛ, u sɔgɔli, u sabatili, ani u cogoya – ni fɛɛrɛw ye minnu bɛ kɛ ka kɛɲɛ ni sariya ye ani sɔnni sariyaw.

Kɔnɔkow gɛlɛn – A jiralan jɔnjɔnba

Fɛn gɛlɛnw kɔnɔfɛnw bɛ nɔ bila fɛn dilannenw baarakɛcogo la ani u kɛcogo sɔrɔko la (datugulan minnu ka bon, olu bɛ fɛn gɛlɛnw de wajibiya minnu ka bon).

Kɔrɔbɔli kɛcogo minnu ka teli ka kɛ:

Sɔn-ni-sɔn gafeninw:

• Ka kɛɲɛ ni T/FSI 067-2021 sariya ye : A hakɛ gɛlɛn wajibiyalen don PTFE fɛnɲɛnamafagalan na min bɛ jigin siɲɛ caman, o ye 60±2% ye .

• Kɔlɔsili sariya lakika min bɛ kɛ yɔrɔ la: 60±0,5% (muɲuli ka gɛlɛn ka ɲɛsin finimugu basigilen ma)

pH hakɛ – sabatili jiralan

pH hakɛ bɛ nɔ bila a maracogo sabatili la, a sɔgɔli la, ani a ni fɛn wɛrɛw ka bɛn ɲɔgɔn ma.

Kɔrɔbɔli fɛɛrɛ : Glass Electrode Method (Direct Determination) – aw bɛ a suman ni pH jateminɛnan ye ni glass electrode ye min jateminɛna ni yɔrɔ fila walima saba jateminɛ ye. Nin ye fɛɛrɛ jɔnjɔn ye min bɛ kɛ ka caya.

Sɔn-ni-sɔn gafeninw:

• T/FSI kelen-kelen bɛɛ la 067-2021 : pH hakɛ bɛ se 9,0 – 11,0 ma

• pH jiginni bɛ a jira tuma caman na ko sistɛmu basigibaliya walima kemikɛli walew kɛra (misali la, surɔfɛn dilanni jilama) .

• pH jiginniw nɔfɛtaama kuntaalajan nafa ka bon walasa ka kiri tigɛ emulsiɔn ka kemikaliya sabatili kan

Mun na pH nafa ka bon: PTFE emulsiɔnw bɛ sabati ni fluor ye, minnu bɛ kɛ ni alkaline cogoyaw ye (pH > 8) walasa ka to ka baara kɛ. Ni pH jigira ka tɛmɛ 8 kan, emulsiɔn bɛ se ka wuli.

Aokai PTFE bɛ ladilikan di ko aw ka pH sɛgɛsɛgɛ dunun natɔ bɛɛ kan ani kalo o kalo a maratuma na. Ni a jiginna yɔrɔnin kelen ka bɔ 10,2 na ka se 8,5 ma dɔgɔkun fila kɔnɔ, o b’a jira ko emulsiɔn bɛ basigi, wa a ka kan ka kɛ joona walima ka ban.

Particule Size & Particule Size Jatebɔ

PTFE fɛnɲɛnamafagalan fɔlɔw bonya n’u tilatilali kelen bɛ nɔba bila filimu dilanni nafaw la, u doncogo la, ani u ka fɛn dilannen labanw ka baarakɛcogo la.

Kɔrɔbɔli kɛcogo:

Jateminɛ jiralan jɔnjɔnw :

• D50 (cɛmancɛ cɛmancɛ) – PTFE emulsiyɔn hakɛ dantɛmɛnen: 0,1-0,3 mikron

• Particules size distribution width – a dɔgɔyalen ka fisa ni finimugu basigilen ye

• D10 ni D90 – olu bɛ jatebɔ jɛnsɛnni taamasiyɛn

Sɔncogo : Ni finimugu kɛcogo fanba la, D50 ka kan ka kɛ 0,15 ni 0,25 μm cɛ ni 90% ye fɛnɲɛnamafagalanw ye ±0,1 μm kɔnɔ.

Viscosité – Baarakɛcogo baarakɛcogo

Viscosité bɛ flow kɛcogo jira, a bɛ nɔ bila dacogo ni impregnation taabolo la k’a ɲɛsin a yɛrɛ ma.

Sumanikɛcogo minnu bɛ kɛ tuma caman na:

Sɔn-ni-sɔn gafeninw:

• Per T/FSI 067-2021: A sɔgɔli hakɛ bɛ se 12,0 – 30,0 mPa·s (25±1°C la) .

• Viscosité min ka dɔgɔ kojugu → coating uneven, drips

• Viscosité min ka bon kojugu → a doncogo jugu fibreglasi kɔnɔ, o bɛ dilution de wajibiya

Kɔlɔsili nafama : Walasa ka fibreglasi fini dip coating, a ka c’a la, a laɲini ye 15-20 mPa·s ye. Ni sɔgɔsɔgɔninjɛ bɛ wuli, aw bɛ a ladilan ni ji ye min ma ionize (ka jigin) walima ka fɛnmugumugu fara a kan (ka a kɔrɔta).

Stability Evaluation – Lakanali & Taamacogo Dafalen

sabatili jateminɛ bɛ a to emulsiɔn ka to cogo kelen na a marali ni a tali waati. Kɔrɔbɔli teliya fɛɛrɛw bɛ kɛ walasa ka cogoya kuntaalajanw ladege.

Tɛmɛsira/dɛsɛ sariyaw:

• Delamination, sedimentation, walima gel formation yelen tɛ yen

• Viscosité changement < 10% ka bɔ a daminɛ na

• Particule hakɛ D50 yeli < 15% .

A maracogo ɲɛfɔli : Ni a maralen don ka ɲɛ (10-30°C, a datugulen), a ka ca a la PTFE emulsiɔn bɛ sabatili mara kalo 6-12 kɔnɔ. Ni sɛgɛsɛgɛli min kɛra ni santirifugu ye, o y’a jira ko >5% bɔgɔ bɛ yen, aw bɛ batɛmu fili.

Yecogo sɛgɛsɛgɛli – Batch consistency Check teliya la

Aw bɛ sɛgɛsɛgɛli kɛ ni ɲɛ ye yeelen nafama kɔrɔ.

A ɲɛda cogoya min bɛ sɔn: Emulsiɔn finman walima jɛman jɛman, a bɛ kɛ kelen ye, a tɛ fɛn wɛrɛ kɛ i n’a fɔ delamination, jeli kurukuruw, fari bɔli, walima sanji jɛlen.

Fɛn minnu ka kan ka kɔlɔsi:

• Dibi → nɔgɔ bɛ se ka sɔrɔ walima funteni tiɲɛni

• Fari sanfɛla → a jalen walima a yɔrɔ dɔ bɛ wuli

• Kurukuruw walima grit → polimɛri coagulé (jugu) .

• Ji jɛlen bɛ sanfɛ → bɔgɔbɔgɔli kɛra

Kuma surun – Kɔrɔbɔli fɛɛrɛw sugandi ka da baarakɛcogo kan

Kunnafoni minnu bɛ sanfɛ, olu bɛ di Jiangsu Aokai Kura Materiel Teknoloji Co., Ltd.

N’aw b’a fɛ ka kunnafoni caman sɔrɔ an ka fɛn dilannenw bɛɛ lajɛlen ka paramɛtiriw ɲɛfɔlenw kan, u kɛcogo, ani u kɛcogo ladamuni fɛɛrɛw kan, i n’a fɔ Teflon fini min bɛ funteni caman bɔ, Teflon kasɛti min bɛ funteni caman bɔ, Teflon kasɛti min bɛ funteni caman bɔ, cɛsirilan minnu bɛ kɛ ni fɛnɲɛnamafagalan ye, minnu tɛ fɛn tiɲɛ, PTFE fini min bɛ kɛ fan kelen fɛ, fɛnɲɛnamafagalan minnu bɛ se ka funteni caman kɛlɛ, ani minnu bɛ funteni caman bɔ resistant fibreglass fini , aw bɛ se ka anw sɔrɔ nin fɛɛrɛ ninnu fɛ:

• Cɛ Guo: +86 18944819998 ye

• Cɛ Liu: +86 13705266308 ye

An bɛ baarakɛcogo ɲuman ni kɔnɔnajɛya hakilina sabati tuma bɛɛ, ani ka fɛɛrɛw di aw ma ni an dusukun bɛɛ ye yɔrɔ kelen na ani baara minnu bɛ kɛ ni jateminɛ ye!