Kwizityalo zekhemikhali, imigca ye-electroplating, kunye neendwangu ze-semiconductor, izixhobo ze-lining kunye namabhanti okuhambisa ajongene nokuhlaselwa rhoqo kwiikhemikhali ezinobundlobongela. Ilaphu le-PTFE lobushushu obuphezulu (ilaphu le-fiberglass eliqatywe nge-polytetrafluoroethylene) lihlala licaciswa ngokuchanekileyo ngenxa yokungangeni kwayo kweekhemikhali okukhethekileyo. Kodwa 'phantse jikelele' ukuxhathisa 'akukho jikelele' - izinto ezimbalwa ezinobundlobongela zinokuyihlasela, kwaye ubushushu budlala indima ebalulekileyo.
I-Aokai PTFE ivavanye ilaphu le-PTFE ngokuchasene namakhulu emichiza. Esi sikhokelo sichaza into echasene nayo, yintoni omele uyiphephe, kunye nendlela ubushushu obuchaphazela ngayo ukusebenza.
Ilaphu le-PTFE elinobushushu obuphezulu lizingca ngendlela ebalaseleyo yokuxhathisa ukuthotywa kweekhemikhali, libekwe phakathi kwinqanaba eliphezulu lemathiriyeli yobunjineli eqhelekileyo. Le propathi engundoqo isuka kwi-polytetrafluoroethylene coating yangaphandle, equlunqwe ngeebhondi eziqinileyo ze-carbon-fluorine (CF) ezixhathisa uhlaselo lwekhemikhali.
I-fiberglass substrate engaphantsi ayinayo i-chemically inert - kodwa nje ukuba i-PTFE yokugqoka ihlala injalo, ilaphu lenza njengento ephantse ibe yi-inert. Kumaqondo obushushu okusebenza rhoqo, ilaphu le-PTFE lihlala lizinzile kakhulu ngokuchasene noninzi lweeasidi ezinamandla, iialkali ezomeleleyo, izinyibilikisi eziphilayo, kunye nee-oxidizing agents.
Kwiqondo lokushisa eliqhelekileyo lokusebenza, izinto zihlala zizinzile kakhulu ngokuchasene nobuninzi bee-acids ezinamandla, i-alkalis eqinile, i-solvents ye-organic, kunye ne-oxidizing agents.
1. Iiasidi ezinamandla
I-asidi ye-sulfuric egxininisiweyo, i-nitric acid, i-hydrochloric acid, i-phosphoric acid, kunye ne -aqua regia (umxube we-nitric kunye ne-hydrochloric acids enyibilikisa igolide) - i-PTFE iyamelana nazo zonke. Akukho ukuthotywa okunokulinganiswa okwenzekayo.
2. Iialkali ezinamandla
I-sodium hydroxide (NaOH) kunye ne-potassium hydroxide (KOH) izixazululo azikho imiphumo emibi kwiqondo lokushisa. Ukuxhathisa kunabela kwiindawo ezininzi zealkaline.
3. Izinyibilikisi zendalo
I-PTFE ayinyibiliki kuzo zonke izinyibilikisi ezaziwayo. Ayiyi kukhukhumala okanye inyibilike xa ibonakaliswe kwi-ketones, i-alcohol, i-ethers, i-hydrocarbons, i-solvents e-chlorinated, okanye naluphi na udidi lwe-solvent.
4. Ii-oxidizing agents
Ibonisa ukunyamezela okugqwesileyo kwii-oxidizers ezinamandla ezifana ne-hydrogen peroxide (H₂O₂) kunye ne-permanganate.
5. Iipropati ezongezelelweyo
I-Hydrolysis-resistant - ayichaphazeli ngamanzi okanye umphunga
Ukumelana nemozulu- I-UV kunye nokuvezwa kwangaphandle kubangela ukuthotywa okuncinci
I-oil-repellent kunye ne-non-stick - amandla aphantsi komhlaba athintela ukunamathela
Ukufunxwa kwamanzi - ngokufanelekileyo zero (<0.01%)
Ngaphandle – imichiza ekufuneka ulumkele
I-PTFE ayixhathisi jikelele. Iphendula ngenani elincinci leekhemikhali ezisebenza kakhulu phantsi kweemeko ezinzima, ezifuna ingqalelo ekhethekileyo ngexesha lokukhethwa kwezinto.
I-Aokai PTFE igxininisa ukuba ezi ngaphandle zinqabile kodwa zibalulekile ukwazi:
I-sodium enyibilikisiweyo (Na), i-potassium (K), kunye ne-lithium (Li) iphula iibhondi ze-carbon-fluorine ngaphakathi kwe-PTFE, ezibangela ukutshatyalaliswa ngokupheleleyo. Lo ngumgaqo osemva kwe-sodium-naphthalene etching ye-PTFE yonyango lomphezulu.
I-H3: Iikhompawundi ze-halogen ezisebenzayo kakhulu phantsi kobushushu obuphezulu kunye noxinzelelo oluphezulu
I-Chlorine trifluoride (ClF₃)
I-oxygen difluoride (OF₂)
Irhasi yeFluorine (F₂) kwiqondo lobushushu eliphakamileyo kunye noxinzelelo
Ezi zinokusabela okanye zide zitshise i-PTFE phantsi kweemeko ezinzima.
I-H3: I-alkali eyomeleleyo etyhidiweyo kumaqondo obushushu aphezulu
I-sodium hydroxide enyibilikisiweyo (NaOH) okanye i-potassium hydroxide (KOH) ngaphezu kwe- 300°C kancinane iyonakalisa i-PTFE. Kwiqondo lokushisa kwegumbi, akukho mphumo.
I-H3: Isikhumbuzo esibalulekileyo-umonakalo wokugquma uveza i-fiberglass
Le mida ingasentla isebenza kuphela kumphezulu PTFE ukutyabeka. Ukuba i-coating ikrwelwe, yonakele, okanye inemingxuma, i-fiberglass substrate engaphantsi iya kubonakaliswa. I-Fiberglass ayinakuchasa kakuhle:
Yiyo loo nto ukugcina ingqibelelo yokwambathisa kubalulekile kwinkonzo yemichiza. Kusetyenziso olubandakanya i-HF, qwalasela ifilimu esulungekileyo ye-PTFE endaweni yoko.
Impembelelo yoBuqondo kuNyaniso lweMichiza
Ubushushu busebenza njengento ebalulekileyo elawula ukuxhathisa kweekhemikhali. Ngaphakathi koluhlu lwenkonzo yexesha elide lobushushu (ngokuqhelekileyo -70°C ukuya ku-260°C), uzinzo lwekhemikhali lwe-PTFE aluchaphazeleki.
Nangona kunjalo, amaqondo obushushu azinzileyo angaphezu kwama-260°C aya:
Nciphisa kancinci ukunganyaniseki kweekhemikhali ze-PTFE
Yenza imathiriyeli ibe sesichengeni ngakumbi kukhukuliseko ngezinto ezigqithisileyo ezikhankanywe ngasentla
Ukukhawulezisa ukuthotywa kwe-thermal, ukudala iindawo ezibuthathaka apho ukuhlaselwa kweekhemikhali kunokuqalisa
Idatha yovavanyo lwe-Aokai PTFE: Kwi-250 ° C ukuvezwa okuqhubekayo, ilaphu le-PTFE ligcina > i-90% yeempawu zayo zokuxhathisa iikhemikhali emva kweentsuku ze-200. Kwi-280 ° C, ukusebenza kwehla kakhulu kwiiveki ezimbalwa.
Kwizicelo ezinobushushu obuphezulu (>260 ° C) kunye nokuvezwa kweekhemikhali, jongana nedatha yezobuchwepheshe okanye wenze uvavanyo oluthile lwesicelo.
IsiShwankathelo - Unokukhetha nini i-PTFE Fabric yeeNdawo zeMichiza
Udidi lweMichiza |
PTFE Fabric Resistance |
Amanqaku |
Iiasidi ezomeleleyo (H₂SO₄, HNO₃, HCl, aqua regia) |
Egqwesileyo |
Ukuya kuthi ga kuma-260°C |
Ialkalis ezomeleleyo (NaOH, KOH) kwiqondo lobushushu begumbi |
Egqwesileyo |
Akukho ukuthotywa |
Ialkalis eyomeleleyo (NaOH, KOH) etyhidiweyo |
Ayifanelekanga |
Uhlaselo olungaphezu kwama-300°C |
Izinyibilikisi ze-Organic (zonke) |
Egqwesileyo |
Akukho kudumba, akukho unyibiliko |
Ii-oxidizing agents (H₂O₂, permanganate) |
Egqwesileyo |
Izinzile |
Iintsimbi zealkali ezinyibilikisiweyo (Na, K) |
Ayifanelekanga |
Ukutshatyalaliswa ngokupheleleyo |
I-Hydrofluoric acid (HF) |
I-PTFE ngokwayo iyaxhathisa – kodwa i-fiberglass ayifuni |
Ifuna ukutyabeka ngokugqibeleleyo; sebenzisa ifilimu ye-PTFE esulungekileyo ukuba awuqinisekanga |
Iikhompawundi zeHalogen (F₂, ClF₃) kwiqondo lokushisa eliphezulu |
Ayifanelekanga |
Iphendula nge-PTFE |
I-Aokai PTFE ibonelela ngamalaphu agqunywe nge-PTFE ukuze afune iimeko zemichiza. Kwizicelo ezifuna ukuxhathisa kwe-HF okanye ukuqinisekiswa kweekhemikhali ezigqithisileyo, sincoma ukuvavanywa phantsi kweemeko ezichanekileyo zokusebenza okanye ukusebenzisa amabakala efilimu ye-PTFE ecocekileyo. Qhagamshelana nathi ngemichiza yakho ethile, ubushushu, kunye nexesha lokuvezwa kwingcebiso.
Lo mxholo wobugcisa unikezelwa ngu IJiangsu Aokai yeTekhnoloji eNtsha yeTekhnoloji Co., Ltd.
Ukuba ufuna iinkcukacha ezicacileyo, iimeko zesicelo kunye nezisombululo ezenzelwe ipotifoliyo yethu epheleleyo, kubandakanywa amalaphu e-PTFE anobushushu obuphezulu, iiteyipu ezincamathelayo ezinobushushu obuphezulu be-PTFE, amabhanti okuhambisa umnatha we-PTFE, amabhanti omatshini wokufunxa angenamthungo, icala elinye le-PTFE elaphuhliweyo, i-fiberglass enganyangekiyo ukunxibelelana ne-fiberglass, nceda unxibelelane ne-fiberglass. la majelo alandelayo:
Siyazixhasa iinkoloseko zenkonzo yobungcali kunye nemfezeko, kwaye sizimisele ngokupheleleyo ekuziseni izisombululo ezihlangeneyo kunye nenkxaso enomdla kubo bonke abathengi!
