Nutoa me ƒe fafa ƒe ŋusẽkpɔɖeamedzi ɖe PTFE Emulsion Impregnation dzi

Le PTFE avɔ si ƒe dzoxɔxɔ lolo ƒe wɔwɔ ŋutɔŋutɔ me to Jiangsu Aokai New Materials dzi la, zi geɖe la, wokpɔa nutome ƒe fafa dzi le dometsotso tɔxɛ aɖe si nye 40%–60% RH , tsɔ kpe ɖe dzoxɔxɔ ƒe ɖoɖowɔwɔ ŋu. Wotrɔ asi le yaƒoƒo ƒe agbɔsɔsɔme ŋu be wòaɖiɖi vie wu tsi ƒe ʋukawo ƒe tsɔtsɔ yi teƒe bubu le emulsion me le capillary network me, si kpɔa egbɔ be emulsion la ge ɖe eme bliboe eye wòsɔ pɛpɛpɛ esime wole PTFE sintered film siwo me gblẽ le, siwo le ʋeʋẽm ŋutɔ la gbɔ ɖom.

Ŋusẽkpɔɖeamedzi vevitɔ si nutome ƒe fafa kpɔna ɖe PTFE emulsion ƒe tsidede dzi la le tsi ƒe dzodzo ƒe agbɔsɔsɔ kple emulsion ƒe liƒo ƒe dadasɔ si me ŋusẽ le me. Zi geɖe la, PTFE emulsion nyea tsi si menye Newton tɔ o si me PTFE resin ƒe akpa suesuesuewo (dispersed phase), surfactants, stabilizers, kple tsi (continuous phase) le. Abe nutome ƒe nɔnɔme ene la, fafa ɖɔa ʋuʋudedi (tsi) ƒe dzoxɔxɔ ƒe ʋuʋu ɖo, si wɔa ŋusẽkpɔɖeamedzi veviwo abe alesi gbɔna ene:

1. Ŋusẽkpɔɖeamedzi Veviwo ɖe Fufɔfɔ ƒe Dɔwɔna Dzi

Afɔɖeɖe si me wotsɔa tsi ƒoa tsii la bia be emulsion la nate ŋu age ɖe nusi wotsɔ wɔe ƒe ʋuʋudedi alo ka ƒe dometsotsowo me nyuie (le kpɔɖeŋu me, glass fiber cloth, metal mesh).

Nuto si me fafa le sue : Tsi ƒuna kabakaba akpa, si wɔnɛ be emulsion la 'surface-dry' kabakaba le substrate la dzi. Esia dzia emulsion ƒe ʋeʋẽ si dze abe ɖe wòle ƒomedodoa me ene ɖe edzi ŋutɔ, si xea mɔ na aŋɔ ƒe akpa suewo ƒe ʋukawo ƒe gege ɖe anyigba gogloa me eye wòhea 'tsi si mesɔ gbɔ o' vɛ — si fia be ya kotoku siwo susɔ le nusi le ete la me. Le ɣeyiɣi sia me la, yaƒoƒo kabakaba ɖea dzoxɔxɔ gbogbo aɖe ɖa, si ate ŋu ana teƒea ƒe dzoxɔxɔ naɖiɖi kpata, si ana emulsion la nali ke le dzoxɔxɔ ƒe ŋusẽ gome eye wòana surfactant ƒe tsidzadza nado, si ana 'orange peel' alo titrime si mesɔ o nava le ƒuƒoƒo si me wode tsii me.

Nuto si me fafa le ŋutɔ : Woxea mɔ na tsi ƒe dzodzo, eye emulsion la nɔa tsi ƒe nɔnɔme si me ʋeʋẽ mele o me le nusi wotsɔ ɖo edzi la dzi ɣeyiɣi didi akpa. Le anyigba siwo le tsitrenu alo esiwo le tsia dzi gome la, woƒe ŋeŋe dzɔna bɔbɔe le nuheŋusẽ te; le anyigba siwo me tsi le ŋutɔ gome la, fafa si sɔ ate ŋu axe mɔ na gas ƒe sisi le anyigba la me, si awɔe be nu suesuesuewo nava zua pinhole ƒe gbagbãƒewo le sintering si kplɔe ɖo me.

2. Ŋusẽkpɔɖeamedzi Veviwo ɖe Film-wɔwɔ ƒe Nyonyome Mamlɛtɔ Dzi

Zi geɖe la, PTFE film wɔwɔ lɔa akpa eve ɖe eme: etutu (tsi ɖeɖeɖa) kple dzoxɔxɔ gã me tsɔtsɔ ƒu gbe (nusuewo ƒe tsɔtsɔ). Fafa kpɔa ŋusẽ ɖe ŋutilã dama la ƒe wɔwɔme dzi koŋ le eƒe ƒuƒu me, si nye 'nyinyi' ɖe film mamlɛtɔ si wotsɔ sintered me.

Gbagbã kple nuteɖeamedzi ememetɔ : PTFE aŋɔ ƒe akpa suewo ƒe film wɔwɔ nɔa te ɖe ʋukawo ƒe nyaƒoɖeamenu dzi le tsi ƒe dzodzo me be wòaƒo nusueawo nu ƒu ɖe ƒuƒoƒo si me wode nu me. Fafa si bɔbɔ akpa nana ʋukawo ƒe nyaƒoɖeamenu ƒe ʋuʋu dzina ɖe edzi ŋutɔ eye wòƒuna kabakaba akpa, si hea ememe nuteɖeamedzi gã aɖe vɛ le ŋutilã dama la me. Esi wònye be ŋutete mele PTFE ŋu be wòada gbe le eɖokui ŋu hafi awɔ sintering o ta la, nuteɖeamedzi mawo hea microcracks alo macroscopic cracking vɛ tẽ le ŋutilã dama la me. Womate ŋu aɖe gbagbãƒe siawo ɖa le dzotsitsi vɔ megbe o, si wɔnɛ be film la dona alo mɔ̃a ƒe ŋusẽ dzi ɖena kpɔtɔna.

Surfactant migration and residue : Surfactant (abe esiwo woate ŋu azã ɖe perfluorooctanoic acid teƒe ene) siwo le PTFE emulsions siwo wodzrana me la ʋuna kple tsi ƒe dzodzo le ƒuƒu me. Nuto si me fafa le ŋutɔ kekea fesre si wotsɔ ƒua gbe ɖe enu, si naa ɣeyiɣi si sɔ na nusiwo wotsɔna ƒoa ƒu ɖe anyigba dzi, si wɔa 'ami si le anyigba dzi slick' alo ŋutigbalẽ sesẽ. Ne ƒuƒoƒo sia megblẽ bliboe alo mezu dzo le sintering ƒe gɔmedzedze o la, anye carbonized eye wòaƒoe ɖe film la me, si ana wòazu ɣie, eƒe kpekpeme dzi aɖe akpɔtɔ, eye wòagbɔdzɔ ŋutɔ le PTFE kple substrate dome adhesion (interfacial bonding nyuie o le ɖiƒoƒo ƒe vovototodedeameme ta).

Film density kple porosity : Ele be PTFE film nyuitɔ nanye esi me pinhole mele o eye wòanɔ ʋeʋẽm. Fafa dzi ɖuɖu si mesɔ o si hea tsi si susɔ vɛ nye afɔku gã aɖe. Le fafa gã me la, ne womeɖe tsi ɖa keŋkeŋ le dzoxɔxɔ kple ƒuƒu ƒe afɔɖeɖea me o la, tsi si susɔ la tsia dzodzodzoe enumake le sintering si kplɔe ɖo me (anɔ abe 327–400°C) kple lolome ƒe kekeɖenudɔwɔwɔ sesẽ, si wɔnɛ be yaƒoƒo ƒe dowo alo interlayer blisters dona le film si me wofa akpa aɖe me. Le go bubu me la, le fafa si le sue ŋutɔ me la, anyigba ƒe ƒuƒu kabakaba naa ŋutigbalẽ si wotu nu ɖo si xea mɔ na tsi ƒe dzodzo le eme, si hã hea ʋuʋudedi alo delamination vɛ le sintering me le yaƒoƒo ƒe nyaƒoɖeamenu si ƒo ƒu ta.

Le gɔmeɖose nu la, ŋusẽ si nutome ƒe fafa kpɔna ɖe PTFE emulsion dɔwɔwɔ dzi nye nudede tsi ƒe yaƒoƒo ƒe ʋuʋu me koŋ:

·  Fafa si bɔbɔ (kuɖiɖi si gbɔ eme)  te ŋu hea: nusiwo me gena ɖe eme nyuie o, mɔxenu si le tsia dzi (do siwo me woɖea tsi le), gbagbãƒe siwo ƒuna, kple nusiwo susɔ siwo le anyigba dzi ƒe mama si mesɔ o.

·  Fafa si sɔ gbɔ (tsi si sɔ gbɔ akpa)  te ŋu hea: ƒuƒu, pinholes ƒe dzidziɖedzi, surfactant ƒe tsia dzi fũ, ʋuʋudedi le sintering megbe, kple adhesion dzi ɖeɖe kpɔtɔ.

Nyatakaka siwo le etame la tso Jiangsu Aokai New Materials Technology Co., Ltd. gbɔ.

Le parameters tsitotsito, dɔwɔwɔ ƒe nɔnɔmewo kple míaƒe adzɔnuwo ƒe hatsotso bliboa ƒe egbɔkpɔnu siwo wowɔ ɖe ɖoɖo nu, siwo dometɔ aɖewoe nye PTFE dzoxɔxɔ gã avɔ, PTFE dzoxɔxɔ gã tape, PTFE dzoxɔxɔ gã mesh alidziblanu, seamless laminating alidziblanu, axa ɖeka PTFE avɔ, kɔkɔ dzoxɔxɔ tsitretsitsi conveyor belts, dzoxɔxɔ kɔkɔ tsitretsitsi glass fiber avɔ, kple bubuawo,. taflatse te ɖe mía ŋu:

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Míeléa subɔsubɔ ƒe xexemenunya si wotu ɖe dɔnyala kple fɔmaɖimaɖi dzi me ɖe asi, eye míetsɔ mía ɖokui na be míana egbɔkpɔnuwo le teƒe ɖeka kple subɔsubɔdɔ si me woalé ŋku ɖo la wò