Yɛlɛma jumɛnw bɛna kɛ jɔcogo la fibreglasi fini na min datugulen don ni PTFE ye, sigida minnu na kemikɛli bɛ se ka tiɲɛ?

Fibreglasi fini min datugulen don ni PTFE ye, o ye fɛn ye min dilannen don ni fibreglasi finimugu falen ye ni politetrafluoroéthylène (PTFE) jɛnsɛnni ye, ka sɔrɔ ka a sɔgɔ ni funteni caman ye. A jɔcogo bɛ se ka tila yɔrɔ fila ye: PTFE dacogo ani fibreglasi basigilen fini.

 

Lamini minnu bɛ kɛ ni kemikɛli ye, fɛn minnu bɛ kɛ ka fɛnw jɔ, olu bɛ bɔ fɛn tiɲɛnen suguya, a hakɛ ani a funteni na, ani fana n’a bɛ bin fɔlɔ finimugu kan walima a dugumalan kan. An ka nin sɛgɛsɛgɛli kɛ layini ni layini ka bɔ PTFE-coated fibreglas fini dilannikɛlaw ka miiriya la:

 

I. Yɛlɛma donna PTFE dacogo la: A sabatilen don kosɛbɛ bana fanba la

 

PTFE tɔgɔ bɔra ko 'Plastikiw masakɛ' k'a sababu kɛ a ka karɔbɔni ni fluorine jɛɲɔgɔnya barikamaba ye ani a ka kemikɛli baarakɛbaliya min ka bon kosɛbɛ kɛrɛnkɛrɛnnenya la. Sigida minnu bɛ kɛ ni kemikɛli ye (minnu bɛ sɔrɔ aqua regia tobilen na, asidi sulfuriki caman, asidi azotiki caman, fɛnɲɛnamafagalanw, a ɲɔgɔnnaw), a ka cakɛda molekiyɔmuw jɔcogo tɛ fɛn caman Changer quemique. Nka, nin cogoya jugu ninnu na, o jɔli bɛna tiɲɛ:

 

1. Alkali nɛgɛw wulilenw / Alkali fura barikamaw (misali la, sodiyɔmu, potasiyɔmu, sodiyɔmu idɔrɔkisidi ni funteni ka bon) .

 

- Yɛlɛma donna sigida la : Alkali nɛgɛw bɛna fluorine atomu bɔ PTFE la, o bɛ kɛ sababu ye ka dehydrofluorination reaction kɛ. -CF2- kulu minnu bɛ molekiyɔmu cakɛda la, olu bɛ tiɲɛ, ka kɛ sababu ye ka karɔbɔni-karɔbɔni jɛɲɔgɔnya fila kɛ (-C=C-) o kɔfɛ, u bɛ na ni karɔbɔli ye.

- Macroscopic Manifestation : A dacogo bɛ Changé ka bɔ nɔnɔ finman/translucent na ka kɛ bulama walima nɛrɛma ye, a tɛ se ka wuli, a bɛ kɛ brittle ye, ani a bɛ kɛ mugu ye. O ye kemikaliya tiɲɛni ye min bɛ kɛ cogoya la.

 

2. Fluorine (Fluorin) barikamaw ani hydrocarbures halogènes dɔw (funteni ni degunba kɔrɔ) .

 

- Fluorine elemental (F2), chlorine trifluoride (ClF3), ani o ɲɔgɔnna fɛnw bɛ se ka carbone-carbone kɔkolo kari, ka kɛ sababu ye ka finimugu tiɲɛ.

- Ni funteni ni degunba kɛra, Freon suguya fura dɔw bɛ se ka PTFE funu juguman bila mɔgɔ la. Hali ni a bɛ se ka kɛ ko kemikɛli wale tɛ kɛ, farikolo jɔcogo bɛ tɔɔrɔ ni kristalɛ dɔgɔyali ye, hakɛ bonya, ani fanga bɔnɛni ka da molekiyɔmu cakɛdaw jagoya kan.

 

3. Asidi oksidan barikamaw ni funteni ka bon

 

- Ni aw ye aw su asidi azotiki sisilen na walima asidi sulfuriki funteniman na, o bɛ se ka PTFE sanfɛla oksidan kɛ dɔɔni dɔɔni, ka polar kuluw don a kɔnɔ i n’a fɔ karɔbɔni ni hidroksili kuluw, ani ka dɔ fara sanfɛla fanga kan. Nka, o man teli ka ye baarakɛcogo kɔrɔw la.

 

Fɛnba : Kemikɛlifɛnw fanba la, PTFE dacogo yɛrɛ bɛ sigicogo la 'a ma Changé.' Nka, gɛlɛya bɛ sɔrɔ tuma caman na ko a tɛ se ka don a kɔnɔ abada, ka fara a farikolo cogoya kan.

 

II. Yɛlɛma donna Fibreglasi basigilen fini na: Fɛn bɛɛ ka jɛɲɔgɔnya barikama

 

Fibreglasi yɔrɔ kolomaw ye siliyɔmu gazi (SiO2) ani nɛgɛ oksizɛni dɔw ye. Ni o yɔrɔ in sɔgɔra dɔrɔn, fini min bɛ funteni caman na, o bɛɛ lajɛlen bɛna bin.

 

1. Asidi fluorique (HF) ka binkanni min bɛ mɔgɔ faga .

 

- Yɛlɛma donna sigida la : HF bɛ kɛ ni wale kɛrɛnkɛrɛnnen ye ni SiO2 ye : SiO2 + 4HF → SiF4↑ + 2H2O. Fibreglasi kolotuguda bɛ wuli k’a ɲɛsin a yɛrɛ ma ka tunun.

- Makɔrɔskɔpi Manifestation : Fini sanfɛla fanga bɛ tiɲɛ joona, a bɛ kɛ i n’a fɔ fari nɔgɔlen ni finimugu dɔrɔn de tora, a bɛ tigɛ nɔgɔya la ni a samalen don, ni faraliba bɛ kɛ finimugu ni a dugumalan cɛ. Nin ye kemikɛli sɔgɔli ye min bɛ siran kosɛbɛ fɛnw na minnu dilannen don ni gilasi ye. Ni pinɛw bɛ finimugu kɔnɔ walima ni a dakunw bɛ kɛnɛ kan, tiɲɛni bɛ kɛ kosɛbɛ.

 

2. Slow Etching by Strong Alkali (kɛrɛnkɛrɛnnenya la alkali funtenimanw) .

 

- Yɛlɛma donna sigida la : OH− ionw bɛ siloxane jɛɲɔgɔnyaw (-Si-O-Si-) tiɲɛ gilasi rezo kɔnɔ, ka silikatiw dilan minnu bɛ se ka wuli. Fibre sanfɛla bɛ Changé ka bɔ nɔgɔ la ka taa a kɛ gɛlɛn ye, ni etching pits ni cracks bɛ bɔ, fibre diameter bɛ fin, ka laban ka kari.

- Makɔrɔskɔpi Manifestation : Fanga bɛ dɔgɔya tuma bɛɛ, fini bɛ kari, ni a kurulen don, fiɲɛ karilenw bɛ bɔ finimugu kɔnɔ, o bɛ kɛ sababu ye ka finimugu kari ka bɔ.

 

3. Asidifɛnw (n’a ma kɛ asidi fluoriki ye) .

 

- Yɛlɛma donna sigida la : Asidi minnu bɛ sɔrɔ tuma caman na (asidi kloroki, asidi sulfuriki, a ɲɔgɔnnaw) ka fisa ka fɛnw bɔ minnu tɛ silisi ye (i n’a fɔ aliminiyɔmu, kalisiyɔmu ɔkisidi, a ɲɔgɔnnaw) ka bɔ fibreglasi la, ka silisi kolo fanba to. O kɛcogo in bɛ Weele ko 'leaching,' min bɛ kɛ ka mikroporozɛni dɔ dilan fiɲɛ sanfɛ.

- Makɔrɔskɔpi Manifestation : Fini bɛ gɛlɛya ani ka kari, ni fɛn dɔw bɛ yeli kɛ a dɔgɔyali la, hali ni a cogoya bɛɛ bɛ se ka mara. Fanga bɛ dɔgɔya ka a sababu kɛ degunw hakɛ caya ye.

 

III. Yɛlɛma minnu bɛ kɛ Interface Composite la: Dɛsɛ dogolen

 

Tuma caman na, kemikɛli sigidaw tɛ bin kunkolo kan nka u bɛ don o nɔ na ka bɔ dawolow la walima ka tɛmɛ fiɲɛ misɛnninw fɛ.

 

- Donni ni a bɔli : Biologique solvents walima acid solutions bɛ don pinholes fɛ, micro-cracks fɛ, walima dakun tigɛlenw fɛ PTFE finimugu kɔnɔ, ka bin fibreglasi kan. Farikoloɲɛnajɛfɛnw walima ji minnu bɛ don u kɔnɔ, olu bɛ dalajɛ ɲɔgɔn cɛ, ka tansiyɔn osmotiki lawuli, o bɛ kɛ sababu ye ka PTFE dacogo kurukuru ani ka bɔ fibreglasi substrat la ka caya.

- Stress Corrosion Cracking : Fini min funteni ka bon, o bɛ tension (janya) la a kɛtuma na. Fibreglasi sɔgɔli ni kemikɛlifɛnw ye (kɛrɛnkɛrɛnnenya la alkali barikamaw) bɛ baara kɛ ɲɔgɔn fɛ ni masinw ka degun ye, o bɛ kɛ sababu ye ka faraw jɛnsɛn joona fibre radial sira fɛ, o bɛ na ni fini barikama karilen ye ni brittle-fracture morphologie saniyalen ye kari waati.

 

Lamini minnu bɛ kɛ ni kemikɛli ye, PTFE-datulen fibreglasi fini jɔcogo caman bɛ se ka fɔ ka surunya nin cogo la: 'King of Plastics' finimugu bɛ to ka sabati i n’a fɔ kulu, k’a sɔrɔ fibreglasi basigilen fini — ni a donna walima ni a binna a kan — a bɛ kɛ Akilisi senkɔni ye, o bɛ na ni kolotugudaw wulicogo ye, ka ɲɔgɔn cɛlabɔli kɛ, ani ka fɛn bɛɛ bin ka bɔ kɔnɔna na ka bɔ kɛnɛma.

 

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Kunnafoni minnu bɛ sanfɛ, olu bɛ di Jiangsu Aoke 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 ladilancogo suganditaw kan—i n’a fɔ PTFE-coated fibreglas fabric, PTFE-coated fibreglas tape, PTFE-coated fibreglas mesh belts, adhesive-bonded seamless belts, single-sided PTFE fabric, high-temperature resistant conveyor cɛsirilanw, ani fibreglasi fini min bɛ se ka funteni caman kɛlɛ—aw ka aw yɛrɛ siga ka kuma an fɛ:

 

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