Nsakrae bɛn na ɛbɛba wɔ ntama a wɔde PTFE akata so wɔ fiberglass ntama mu wɔ mmeae a nnuru asɛe no?

PTFE-coated fiberglass ntama yɛ ade a wɔabom ayɛ denam fiberglass ntama a wɔde polytetrafluoroethylene (PTFE) apetepete so na afei wɔde sintered wɔ ɔhyew a ɛkorɔn mu. Wobetumi akyekyɛ ne nhyehyɛe no mu abien: PTFE a wɔde kata so ne fiberglass nnyinaso ntama.

 

Wɔ mmeae a nnuru asɛe no, nsakrae a ɛba wɔ nhyehyɛe mu no gyina sɛnea ade a ɛporɔw no te, sɛnea ɛyɛ kɛse, ne ɔhyew so, ne sɛ ebia ɛtow hyɛ ade a wɔde kata so anaa nea ɛwɔ ase no so titiriw. Momma yɛnhwehwɛ saa ntoatoaso yi mu ntoatoaso biara mfi wɔn a wɔyɛ ntama a wɔde fiberglass a wɔde PTFE akata so no adwene mu:

 

I. Nsakrae a ɛba PTFE Coating mu: Ɛgyina pintinn yiye wɔ Nsɛm dodow no ara mu

 

PTFE agye din sɛ 'Plastics Hene' esiane ne carbon-fluorine nkitahodi a emu yɛ den yiye ne nnuru a ɛnyɛ adwuma a ɛkorɔn soronko nti. Wɔ mmeae a nnuru a ɛtaa sɛe (a aqua regia a wɔnoa, sulfuric acid a wɔahyɛ no den, nitric acid a wɔahyɛ no den, nnuru a wɔde siw nneɛma a nkwa wom, ne nea ɛkeka ho ka ho) mu no, ɛkame ayɛ sɛ ne molecule nkɔnsɔnkɔnsɔn nhyehyɛe no nsakra wɔ nnuru mu. Nanso, wɔ tebea horow a emu yɛ den a edidi so yi mu no, ɔdan no bɛsɛe:

 

1. Alkali Metals a Wɔabɔ / Alkaline Solutions a Ɛyɛ Den (sɛ nhwɛso no, sodium, potassium, sodium hydroxide wɔ ɔhyew a ɛkɔ soro mu) .

 

- Nsakraeɛ a ɛba wɔ nhyehyɛɛ mu: Alkali dadeɛ bɛyi fluorine atom afiri PTFE mu, na ɛbɛma dehydrofluorination reaction aba. -CF2- akuw a ɛwɔ molecule nkɔnsɔnkɔnsɔn no mu no sɛe, na ɛyɛ carbon-carbon nkitahodi abien (-C=C-) na akyiri yi ɛde carbonization ba.

- Macroscopic Manifestation: Nneɛma a wɔde kata so no sesa fi nufusu fitaa/translucent kɔ brown anaa tuntum, ɛhwere flexibility, ɛbɛyɛ brittle, na powders. Eyi yɛ nnuru a wɔtaa sɛe no.

 

2. Fluorinating Agents a Ɛyɛ Den ne Halogenated Hydrocarbons Bi (wɔ ɔhyew ne nhyɛso a ɛkɔ soro ase) .

 

- Elemental fluorine (F2), chlorine trifluoride (ClF3), ne nneɛma a ɛte saa betumi abubu carbon-carbon akyi dompe no, na ama ade a wɔde kata so no aporɔw.

- a ewo hyew ne nhyɛsoɔ a ɛkorɔn ase no, Freon-type solvents binom betumi ama PTFE ahonhon kɛseɛ. Ɛwom sɛ ebia ɛnyɛ nea nnuru bi bɛyɛ adwuma de, nanso abɔde mu nhyehyɛe no hu amane wɔ ahwehwɛ a ɛso tew, ne kɛse a ɛtrɛw, ne ahoɔden a ɛyera esiane molecule nkɔnsɔnkɔnsɔn a wɔhyɛ no ma ɛtetew mu nti.

 

3. Oxidizing Acids a Ɛyɛ Den wɔ Ɔhyew a Ɛkorɔn mu

 

- a wode hwe ase bere tenten wɔ nitric acid a ɛyɛ hyew anaa sulfuric acid a ɛyɛ hyew mu no betumi ayɛ PTFE no ani nkakrankakra, de polar akuw te sɛ carbonyl ne hydroxyl akuw aba, na ama ahoɔden a ɛwɔ soro no akɔ soro. Nanso, wɔntaa nhu eyi wɔ nneɛma a wɔtaa de di dwuma mu.

 

Asɛm titire: Wɔ nnuru a wɔde kata so no mu dodow no ara fam no, PTFE a wɔde kata so no ankasa yɛ nhyehyɛe 'ɔnsakra.' Nanso, ɔhaw no taa gyina nokwasɛm a ɛyɛ sɛ ɛnyɛ nea entumi nkɔ mu koraa, ne ne honam fam nsɛso nso.

 

II. Nsakrae a Ɛba Fiberglass Base Fabric no mu: Ade no Nyinaa Nkitahodi a Ɛyɛ Mmerewa

 

Nneɛma atitiriw a ɛwɔ fiberglass mu ne silicon dioxide (SiO2) ne dade oxide ahorow bi. Sɛ ɔfã yi sɛe pɛ a, ntama a ɛyɛ hyew kɛse no nhyehyɛe nyinaa bɛhwe ase.

 

1. Hydrofluoric Acid (HF) Ntua a Ɛyɛ Hu .

 

- Nsakraeɛ a ɛba nhyehyɛɛ mu: HF ne SiO2 kɔ adeyɛ pɔtee bi mu: SiO2 + 4HF → SiF4↑ + 2H2O. Fiberglass nnompe no mu tew tẽẽ na ɛyera.

- Macroscopic Manifestation: Ntama no ani hwere ahoɔden ntɛmntɛm, ɛbɛyɛ te sɛ honam ani a ɛyɛ mmerɛw a nea wɔde akata so nkutoo na ɛka, ɛtetew ntɛmntɛm bere a wɔatwe no, na mpaapaemu kɛse wɔ ade a wɔde akata so ne nea ɛwɔ ase no ntam. Eyi ne nnuru a wosuro sen biara a wɔde bɛsɛe nneɛma a wɔde ahwehwɛ nhama ayɛ. Bere tenten a pinholes wɔ ade a wɔde kata so no mu anaasɛ n’afã horow a ɛda adi no, ɔsɛe no yɛ kɛse.

 

2. Slow Etching by Strong Alkalis (titiriw alkalis a ɛyɛ hyew a wɔahyɛ no den) .

 

- Nsakraeɛ a ɛba nhyehyɛɛ mu: OH− ions bubu siloxane nkitahodiɛ (-Si-O-Si-) a ɛwɔ ahwehwɛ ntam, na ɛyɛ silicates a ɛtumi nwura mu. Nhama no ani sesa fi nea ɛyɛ torotoro so kɔ nea ɛyɛ mmerɛw so, na etching amena ne mpaapaemu da adi, nhama no kɛse yɛ teateaa, na awiei koraa no ɛpaapae.

- Macroscopic Manifestation: Ahoɔden kɔ so tew, ntama no yɛ brittle, na sɛ wɔkotow a, nhama a abubu no pue fa ade a wɔde kata so no mu, na ɛma ade a wɔde akata so no mu paapae na ɛpue.

 

3. Acid Media (gye hydrofluoric acid) .

 

- Nsakraeɛ a ɛba nhyehyɛɛ mu: Acid a ɛtaa ba (hydrochloric acid, sulfuric acid, ne nea ɛkeka ho) pɛ sɛ ɛyi nneɛma a ɛnyɛ silica (te sɛ aluminium, calcium oxides, ne nea ɛkeka ho) firi fiberglass no mu, na ɛma silica nnompe no dodoɔ no ara. Wɔtaa frɛ saa adeyɛ yi 'leaching,' a ɛyɛ microporous nhyehyɛe wɔ fiber no ani.

- Macroscopic Manifestation: Ntama no yɛ den na ɛyɛ mmerɛw, na nsakrae ba wɔ shrinkage mu, ɛwom sɛ wobetumi akura ne nyinaa mu de. Ahoɔden so tew esiane adwennwen a wɔde si biribi so nti.

 

III. Nsakrae a ɛba Composite Interface no so: Nkonimdi a Ahintaw

 

Mpɛn pii no, nnuru a atwa yɛn ho ahyia no ntow nhyɛ wɔn ti so na mmom efi anoano anaasɛ ɛfa sintɔ nketenkete mu.

 

- Penetration ne Delamination: Organic solvents anaa acid solutions fa pinholes, micro-cracks, anaa ntwea a wɔatwa wɔ PTFE coating no mu, tow hyɛ fiberglass no so. Nneɛma a ɛma ɛyɛ ade anaa nsu a ɛhyɛn mu no boaboa ano wɔ ntam no, na ɛma osmotic nhyɛso ba, na ɛma PTFE a wɔde kata so no yɛ akisikuru na ɛpaapae fi fiberglass substrate no mu kɛse.

- Stress Corrosion Cracking: Ntama a ɛyɛ hyew kɛse no wɔ nhyɛso ase bere a wɔde redi dwuma no. Nnuru a ɛma fiberglass no nsɛe (titiriw alkalis a ɛyɛ den) no ne mfiri nhyɛso yɛ adwuma bom, na ɛma mpaapaemu trɛw ntɛmntɛm wɔ fiber radial kwankyerɛ no so, na ɛde ntama no mu paapae mpofirim a ɛwɔ brittle-fracture morphology a ɛho tew wɔ bere a ɛpaapae no.

 

Wɔ mmeae a nnuru asɛe no, wobetumi abɔ nsakrae a ɛba wɔ fiberglass ntama a wɔde PTFE akata so no nhyehyɛe mu no mua sɛ: ɛkame ayɛ sɛ 'King of Plastics' a wɔde akata so no da so ara gyina hɔ pintinn te sɛ bepɔw, bere a fiberglass nnyinaso ntama no—sɛ ɛhyɛn mu anaasɛ wɔtow hyɛ so pɛnkoro a—ɛbɛyɛ Achilles nan ase, na ɛde nnompe no mu paapae, ntam kwan no so tew, na nneɛma no nyinaa bubu efi mu kɔ akyi.

 

--- .

 

Nsɛm a ɛwɔ atifi hɔ no, wɔde mae Jiangsu Aoke Nneɛma Foforo Mfiridwuma Co., Ltd.

 

Sɛ wopɛ sɛ wusua pii fa parameters a ɛkɔ akyiri, application scenarios, ne customization options ma yɛn nneɛma nyinaa —a nea ɛka ho ne PTFE-coated fiberglass ntama, PTFE-coated fiberglass tape, PTFE-coated fiberglass mesh belts, adhesive-bonded seamless belts, single-sided PTFE ntama, high-temperature resistant conveyor abɔso, ne fiberglass ntama a ɛko tia ɔhyew kɛse—yɛsrɛ sɛ ntwentwɛn wo nan ase sɛ wobɛka yɛn ho asɛm:

 

Ntrɛwmu a wɔde frɛ nkurɔfo:  

Owura Guo: 18944819998  

Owura Liu: 13705266308  

 

Yɛkura ɔsom nyansapɛ a ɛfa adwumayɛfoɔ ne nokwaredi ho akyi berɛ biara, na yɛatu yɛn ho ama sɛ yɛde ano aduru a ɛwɔ baabi baako ne ɔsom a wɔde aso tie bɛma wo!