Ezitshalweni zamakhemikhali, imigqa ye-electroplating, nendwangu ye-semiconductor, izintambo zemishini namabhande okuthutha abhekana nokuhlaselwa okungapheli okuvela kumakhemikhali anolaka. Indwangu ye-PTFE enezinga eliphezulu lokushisa (indwangu ye-fiberglass eboshwe nge-polytetrafluoroethylene) ivamise ukucaciswa ngokunembile ngenxa yokungangeni kwayo kwamakhemikhali okukhethekile. Kodwa ukumelana 'cishe kwendawo yonke' akukona 'okusemhlabeni wonke' - izinto ezimbalwa ezinolaka zingakuhlasela, futhi izinga lokushisa lidlala indima ebalulekile.
I-Aokai PTFE ihlole indwangu ye-PTFE ngokumelene namakhulu amakhemikhali. Lo mhlahlandlela uchaza ukuthi yini emelene nayo, yini okufanele uyigweme, nokuthi izinga lokushisa likuthinta kanjani ukusebenza.
Indwangu ye-PTFE enezinga lokushisa eliphezulu iyazigqaja ngokugqamile ukumelana nokugqwala kwamakhemikhali, ibalwa phakathi kwesigaba esiphezulu sezinto ezijwayelekile zobunjiniyela. Lesi sakhiwo esiyinhloko sisuka ku-polytetrafluoroethylene yangaphandle, eyakhiwe ngamabhondi aqinile e-carbon-fluorine (CF) amelana nokuhlaselwa kwamakhemikhali.
I-fiberglass substrate ngaphansi ayisebenzi ngamakhemikhali - kodwa inqobo nje uma ukunamathela kwe-PTFE kuhlala kunjalo, indwangu yenza cishe njengento engasebenzi. Emazingeni okushisa okusebenza avamile, indwangu ye-PTFE ihlala izinzile kakhulu ngokumelene neningi lama-acids aqinile, ama-alkali aqinile, izinyibilikisi eziphilayo, nama-oxidizing agents.
Emazingeni okushisa ajwayelekile okusebenza, izinto ezisetshenziswayo zihlala zizinzile ngokumelene neningi lama-asidi aqinile, ama-alkali aqinile, izinyibilikisi eziphilayo, nama-oxidizing agents.
1. Ama-asidi aqinile
I-sulfuric acid egxilile, i-nitric acid, i-hydrochloric acid, i-phosphoric acid, ne- aqua regia (ingxube ye-nitric ne-hydrochloric acid encibilikisa igolide) - I-PTFE imelana nakho konke. Akukho ukucekelwa phansi okulinganiselwe okwenzekayo.
2. Ama-alkali aqinile
Izixazululo ze-sodium hydroxide (NaOH) ne-potassium hydroxide (KOH) azinayo imiphumela emibi ekamelweni lokushisa. Ukumelana kudlulela ezindaweni eziningi ezine-alkaline.
3. Izincibilikisi zemvelo
I-PTFE ayincibiliki kuzo zonke izincibilikisi ezaziwayo. Ngeke ikhukhumale noma incibilike lapho ibhekene nama-ketones, utshwala, ama-ether, ama-hydrocarbon, izinyibilikisi ezine-chlorinated, nanoma yisiphi esinye isigaba sezincibilikisi.
4. Ama-oxidizing agents
Ibonisa ukubekezelela okuhle kakhulu kuzikhuthazi ezinamandla njenge-hydrogen peroxide (H₂O₂) nama-permanganate.
5. Izakhiwo ezengeziwe
I-Hydrolysis-resistant - ayithinteki emanzini noma ngesitimu
Imelana nesimo sezulu - Ukuchayeka kwe-UV kanye nangaphandle kubangela ukuwohloka okuncane
I-oil-repellent kanye ne-non-stick - amandla aphansi aphansi avimbela ukunamathela
Ukumuncwa kwamanzi - ziro ngempumelelo (<0.01%)
Okuhlukile – Amakhemikhali Okufanele Uwaqaphele
I-PTFE ayimelani nasemhlabeni jikelele. Ihlangana nenani elincane lamakhemikhali asebenza kakhulu ngaphansi kwezimo ezimbi kakhulu, ezidinga ukunakwa okukhethekile ngesikhathi sokukhetha impahla.
I-Aokai PTFE igcizelela ukuthi lokhu okuhlukile kuyivelakancane kodwa kubalulekile ukwazi:
I-sodium encibilikisiwe (Na), i-potassium (K), ne-lithium (Li) iphula izibopho ze-carbon-fluorine ngaphakathi kwe-PTFE, okubangela ukubhujiswa okuphelele. Lona umgomo ngemuva kwe-sodium-naphthalene etching for PTFE surface treatment.
I-H3: Izinhlanganisela ze-halogen ezisebenza kakhulu ngaphansi kwezinga lokushisa eliphezulu nokucindezela okukhulu
I-Chlorine trifluoride (ClF₃)
I-oksijeni difluoride (OF₂)
Igesi ye-fluorine (F₂) kumazinga okushisa aphezulu nokucindezela
Lezi zingasabela noma zishise i-PTFE ngaphansi kwezimo ezimbi kakhulu.
I-H3: Ama-alkali aqinile ancibilikisiwe emazingeni okushisa aphezulu
I-Sodium hydroxide (NaOH) encibilikisiwe noma i-potassium hydroxide (KOH) ngaphezu kuka- 300°C kancane igqwalisa i-PTFE. Ezingeni lokushisa legumbi, akukho mphumela.
I-H3: Isikhumbuzi esibalulekile - ukulimala kokugqoka kuveza i-fiberglass
Imikhawulo engenhla isebenza kuphela endaweni enamathelayo ye-PTFE. Uma i-coating iklwejwa, ilimele, noma inezimbobo, i-fiberglass substrate engaphansi izovezwa. I-Fiberglass inokumelana okungalungile koku:
Yingakho ukugcina ubuqotho be-coating kubalulekile kusevisi yamakhemikhali. Kuzinhlelo zokusebenza ezibandakanya i-HF, cabangela ifilimu ye-PTFE emsulwa esikhundleni salokho.
Umthelela Wezinga Lokushisa Ekumelaneni Kwamakhemikhali
Izinga lokushisa lisebenza njengesici esibalulekile esilawula ukumelana namakhemikhali. Ngaphakathi kwebanga layo lokushisa lesevisi yesikhathi eside (imvamisa -70°C kuya ku-260°C), ukuzinza kwamakhemikhali we-PTFE akuthintwa nhlobo.
Nokho, amazinga okushisa aqhubekayo angaphezu kuka-260°C azokwenza:
Yehlisa kancane kancane ukungabi namakhemikhali kwe-PTFE
Yenza izinto zibe sengozini yokuguguleka yizinto ezimbi kakhulu ezishiwo ngenhla
Sheshisa ukuwohloka kokushisa, udale izindawo ezibuthakathaka lapho ukuhlasela kwamakhemikhali kungaqala khona
Idatha yokuhlola ye-Aokai PTFE: Ku-250°C ukuchayeka okuqhubekayo, indwangu ye-PTFE igcina >90% wezakhiwo zayo zokumelana namakhemikhali ngemva kwezinsuku ezingu-200. Ku-280°C, ukusebenza kwehla kakhulu phakathi namaviki.
Ngohlelo lokusebenza olunakho kokubili izinga lokushisa eliphezulu (>260°C) nokuchayeka kumakhemikhali, thintana nedatha yezobuchwepheshe noma wenze ukuhlola okuqondene nohlelo lokusebenza.
Isifinyezo - Ungayikhetha Nini Indwangu ye-PTFE Yezindawo Zamakhemikhali
Isigaba Samakhemikhali |
I-PTFE Fabric Resistance |
Amanothi |
Ama-asidi aqinile (H₂SO₄, HNO₃, HCl, aqua regia) |
Kuhle kakhulu |
Kufika ku-260°C |
Ama-alkali aqinile (NaOH, KOH) ezingeni lokushisa legumbi |
Kuhle kakhulu |
Akukho ukucekelwa phansi |
I-alkali enamandla (NaOH, KOH) encibilikisiwe |
Okungafaneleki |
Ukuhlasela ngaphezu kuka-300°C |
Izinyibilikisi ze-organic (zonke) |
Kuhle kakhulu |
Akukho ukuvuvukala, akukho ukubola |
Ama-oxidizing agents (H₂O₂, ama-permanganate) |
Kuhle kakhulu |
Izinzile |
Izinsimbi ze-alkali ezincibilikisiwe (Na, K) |
Okungafaneleki |
Ukubhujiswa okuphelele |
I-Hydrofluoric acid (HF) |
I-PTFE ngokwayo iyamelana - kodwa i-fiberglass ayifuni |
Idinga enamathela ephelele; sebenzisa ifilimu ye-PTFE emsulwa uma ungaqinisekile |
Izinhlanganisela ze-halogen (F₂, ClF₃) emazingeni okushisa aphezulu |
Okungafaneleki |
Isabela nge-PTFE |
I-Aokai PTFE ihlinzeka ngezindwangu eziboshwe nge-PTFE ezidinga izindawo zamakhemikhali. Ezinhlelweni ezidinga ukumelana ne-HF noma ukuqiniseka kwamakhemikhali okwedlulele, sincoma ukuhlola ngaphansi kwezimo zangempela zokusebenza noma ukusebenzisa amamaki efilimu e-PTFE amsulwa. Xhumana nathi ngamakhemikhali akho athile, izinga lokushisa, nesikhathi sokuchayeka ukuze uthole izincomo.
Lokhu okuqukethwe kobuchwepheshe kunikezwa ngu I-Jiangsu Aokai New Material Technology Co., Ltd.
Uma udinga imininingwane eningiliziwe, izimo zohlelo lokusebenza nezixazululo ezenziwe ngokwezifiso zephothifoliyo yethu yomkhiqizo ogcwele, okuhlanganisa izindwangu ze-PTFE ezishisa kakhulu, amateyipu anamathelayo e-PTFE, amabhande e-PTFE anezikhala zokuthutha, amabhande omshini wokuhlanganisa angenamthungo, indwangu enohlangothi olulodwa ye-PTFE ehlanganisiwe, sicela usithinte nge-fiberglass engavimbeli ukushisa iziteshi ezilandelayo:
Sisekela izimiso zesevisi yobungcweti nobuqotho, futhi sizibophezele ngokugcwele ekuletheni izixazululo ezihlangene kanye nokwesekwa okucophelelayo kwawo wonke amaklayenti!
