Chemical Corrosion Resistance of PTFE High-Temperature Fabric - Zomwe Imapirira Ndi Zomwe Sichita

M'mafakitale amankhwala, mizere ya electroplating, ndi nsalu za semiconductor, zomangira zida ndi malamba otumizira amakumana ndi kuukiridwa kosalekeza ndi mankhwala aukali. Nsalu ya PTFE yotentha kwambiri (nsalu ya fiberglass yokutidwa ndi polytetrafluoroethylene) nthawi zambiri imatchulidwa ndendende chifukwa cha kusakhazikika kwake kwamankhwala. Koma kukana 'pafupifupi konsekonse' sikuli 'padziko lonse' - zinthu zingapo zaukali zimatha kuwugwira, ndipo kutentha kumagwira ntchito yofunika kwambiri.

Aokai PTFE yayesa nsalu ya PTFE motsutsana ndi mazana amankhwala. Bukuli likufotokoza zomwe limakana, zomwe muyenera kupewa, komanso momwe kutentha kumakhudzira magwiridwe antchito.

Mbiri Yakugwirira Ntchito - Near-Universal Chemical Inertness

Nsalu ya PTFE yotentha kwambiri imadzitamandira kwambiri kuti isawonongeke ndi mankhwala, yomwe ili m'gulu lapamwamba la zida zaukadaulo wamba. Katundu wapakati uyu amachokera ku zokutira zakunja za polytetrafluoroethylene, zomwe zimapangidwa ndi zomangira zamphamvu za carbon-fluorine (CF) zomwe zimakana kuukira kwa mankhwala.

Gawo la fiberglass pansi silikhala ndi mankhwala - koma bola ngati PTFE yokutira imakhalabe, nsaluyo imachita ngati chinthu chopanda mphamvu. Pa kutentha wokhazikika ntchito, PTFE nsalu amakhalabe kwambiri khola ndi unyinji wa zidulo amphamvu, alkalis wamphamvu, solvents organic, ndi wothandizila oxidizing.

Mitundu Yambiri Yama Media - Zomwe PTFE Nsalu Imatha Kugwira

Pakutentha kwanthawi zonse, zinthuzo zimakhala zokhazikika polimbana ndi ma acid ambiri amphamvu, ma alkali amphamvu, ma organic solvents, ndi oxidizing agents.

1. Ma asidi amphamvu

Concentrated sulfuric acid, nitric acid, hydrochloric acid, phosphoric acid, ndi aqua regia (osakaniza a nitric ndi hydrochloric acid omwe amasungunula golide) - PTFE imapirira zonsezi. Palibe kuwonongeka koyezera komwe kumachitika.

2. Ma alkali amphamvu

Mayankho a sodium hydroxide (NaOH) ndi potaziyamu hydroxide (KOH) alibe zotsatira zoyipa pa kutentha kwapakati. Kukaniza kumafikira kumadera ambiri amchere.

3. Organic solvents

PTFE sisungunuka mu zosungunulira zonse zodziwika. Sidzatupa kapena kusungunuka ikakumana ndi ma ketoni, mowa, ether, ma hydrocarbon, zosungunulira za chlorinated, kapena gulu lina lililonse la zosungunulira.

4. Oxidizing wothandizira

Amawonetsa kulolerana kwabwino kwa oxidizer amphamvu monga hydrogen peroxide (H₂O₂) ndi permanganate.

5. Zowonjezera katundu

• Hydrolysis-resistant - osakhudzidwa ndi madzi kapena nthunzi

• Kulimbana ndi nyengo - Kuwonekera kwa UV ndi kunja kumayambitsa kuwonongeka kochepa

• Mafuta ochotsa mafuta komanso osakhala ndi ndodo - mphamvu zochepa zapansi zimalepheretsa kumamatira

• Mayamwidwe amadzi - zero zero (<0.01%)

Kupatulapo - Mankhwala Oyenera Kukhala Osamala

PTFE sichirikiza konsekonse. Imakhudzidwa ndi tinthu tating'ono ting'ono tamankhwala othamanga kwambiri pansi pazovuta kwambiri, zomwe zimafunikira chidwi chapadera pakusankha zinthu.

Aokai PTFE ikugogomezera kuti izi ndizosowa koma ndizofunikira kudziwa:

H3: Zitsulo za alkali zosungunuka

Sodium yosungunuka (Na), potaziyamu (K), ndi lithiamu (Li) imaphwanya zomangira za carbon-fluorine mkati mwa PTFE, kuwononga kwathunthu. Iyi ndiye mfundo ya sodium-naphthalene etching ya PTFE pamwamba mankhwala.

H3: Mapangidwe a halogen othamanga kwambiri pansi pa kutentha kwambiri komanso kuthamanga kwambiri

• Chlorine trifluoride (ClF₃)

• Oxygen difluoride (OF₂)

• Mpweya wa fluorine (F₂) pa kutentha kwakukulu komanso kupanikizika

Izi zitha kuchitapo kanthu kapena kuyatsa PTFE pazovuta kwambiri.

H3: Ma alkali amphamvu amasungunuka pa kutentha kwambiri

Sodium hydroxide yosungunuka (NaOH) kapena potaziyamu hydroxide (KOH) pamwamba pa pafupifupi 300 ° C imawononga PTFE pang'onopang'ono. Pa kutentha kwa chipinda, palibe zotsatira.

H3: Chikumbutso chofunikira - kuwonongeka kwa zokutira kumawonetsa magalasi a fiberglass

Zomwe zili pamwambazi zimagwira ntchito pamwamba pa PTFE zokutira. Ngati zokutirazo zakanda, zowonongeka, kapena zili ndi zibowo, gawo la pansi la fiberglass lidzawonekera. Fiberglass ilibe kukana bwino ku:

• Hydrofluoric acid (HF) - imasungunula msanga ulusi wagalasi

• Ma alkali otentha kwambiri - amaukira galasi

Ichi ndichifukwa chake kusunga umphumphu wa zokutira ndikofunikira pa ntchito yamankhwala. Pamapulogalamu okhudza HF, lingalirani filimu yoyera ya PTFE m'malo mwake.

Mphamvu ya Kutentha pa Chemical Resistance

Kutentha kumagwira ntchito ngati chinthu chofunikira kwambiri chomwe chimayang'anira kukana kwa mankhwala. Mkati mwake kutentha kwa nthawi yayitali (nthawi zambiri -70 ° C mpaka 260 ° C), kukhazikika kwa mankhwala a PTFE sikumakhudzidwa.

Komabe, kutentha kopitilira 260 ° C kudzakhala:

• Pang'onopang'ono kuchepetsa PTFE a mankhwala inertness

• Pangani zinthu zomwe zili pachiwopsezo cha kukokoloka ndi zinthu zomwe zatchulidwa pamwambapa

• Limbikitsani kuwonongeka kwa matenthedwe, ndikupanga malo ofooka pomwe kuukira kwa mankhwala kungayambike

Deta ya mayeso a Aokai PTFE: Pa 250 ° C ikuwonekera mosalekeza, nsalu ya PTFE imasunga > 90% ya zinthu zake zokana mankhwala pakatha masiku 200. Pa 280 ° C, ntchito imachepa kwambiri mkati mwa masabata.

Pazogwiritsa ntchito zomwe zili ndi kutentha kwambiri (>260 ° C) komanso kukhudzana ndi mankhwala, funsani zaukadaulo kapena yesani kugwiritsa ntchito kwake.

Chidule Chachidule - Nthawi Yomwe Mungasankhire PTFE Nsalu Zachilengedwe Zachilengedwe

Aokai PTFE imapereka nsalu zokutidwa ndi PTFE zomwe zimafuna malo okhala ndi mankhwala. Pamapulogalamu omwe amafunikira kukana kwa HF kapena kutsimikizika kwamankhwala mopitilira muyeso, timalimbikitsa kuyesa pamayendedwe enieni kapena kugwiritsa ntchito filimu ya PTFE yoyera. Lumikizanani nafe ndi mankhwala anu enieni, kutentha, ndi nthawi yowonekera kuti tikulimbikitseni.

Izi zaukadaulo zimaperekedwa ndi Malingaliro a kampani Jiangsu Aokai New Material Technology Co., Ltd.

Ngati mukufuna tsatanetsatane, zochitika zamagwiritsidwe ntchito ndi njira zothetsera makonda athu athunthu, kuphatikiza nsalu za PTFE zotentha kwambiri, matepi omatira a PTFE, malamba a PTFE mauna otumizira, malamba osakanizika amakina, nsalu yotchinga mbali imodzi ya PTFE, yotchinga kutentha kwambiri, chonde osagwirana ndi magalasi otetezedwa ndi magalasi otchinga, chonde lemberani njira zotsatirazi:

• Bambo Guo: +86 18944819998

• Bambo Liu: + 86 13705266308

Timatsatira mfundo zautumiki za ukatswiri ndi umphumphu, ndipo tadzipereka kwathunthu kupereka mayankho amtundu umodzi ndikuthandizira mwachidwi kwa makasitomala onse!