Hauv cov nroj tsuag tshuaj, cov kab hluav taws xob, thiab cov khoom siv hluav taws xob semiconductor, cov cuab yeej raug cuam tshuam tas li rau cov kua qaub, alkalis, thiab cov kuab tshuaj. Xaiv cov khoom siv tiv thaiv ncaj qha cuam tshuam rau kev nyab xeeb thiab khoom siv lub neej.
PTFE (polytetrafluoroethylene) feem ntau hu ua 'plastic king' vim nws cov tshuaj tsis muaj zog heev. Tab sis 'inert' tsis txhais hais tias 'invincible' - cov tshuaj twg tuaj yeem ua rau nws puas tsuaj? Qhov kub thiab txias ua rau nws qhov kev ua tau zoo li cas?
Ntawm Aokai PTFE , peb tau siv ntau xyoo los kuaj PTFE-coated fabrics tiv thaiv lub ntiaj teb chemical ib puag ncig. Kab lus no qhia peb cov kev tshawb pom los pab koj xaiv qhov zoo.
Cov tshuaj uas PTFE High-Temperature Fabric Resists
1. Cov kua qaub muaj zog
PTFE npuag muab kev tiv thaiv zoo rau:
2. Muaj zog Alkalis
Resistant sodium hydroxide (NaOH), poov tshuaj hydroxide (KOH), ammonia dej (NH₃·H₂O), thiab lwm yam alkaline muaj zog.
3. Organic Solvents
Chemically inert tiv thaiv feem ntau cov kuab tshuaj organic, xws li cawv (methanol, ethanol), ketones (acetone, MEK), muaj ntxhiab hydrocarbons (benzene, toluene, xylene), thiab roj av.
4. Lwm yam tshuaj
Ua haujlwm ruaj khov tiv thaiv oxidants (xws li hydrogen peroxide), ntsev (sodium chloride, sodium sulfate), thiab corrosive gases (chlorine, hydrogen sulfide).
Kev txwv - Cov tshuaj uas ua rau puas PTFE Fabric
Txawm hais tias muaj cov tshuaj tiv thaiv zoo tshaj plaws, PTFE high-temperature ntaub muaj kev txwv nyob rau hauv huab cua kub los yog siab-concentration tej yam kev mob. Qee cov tshuaj tshwj xeeb yuav ua rau muaj kev puas tsuaj raws li teev hauv qab no:
Cov khoom tsis-resistant |
Kev puas tsuaj & Cov teebmeem |
Molten alkali hlau (sodium, potassium) |
Ua kom puas PTFE molecular qauv - PTFE raug txo kom carbon |
Cov tshuaj muaj zog fluorinating (fluorine gas, chlorine trifluoride, perchloryl fluoride) |
React thiab erode cov khoom, tshwj xeeb tshaj yog nyob rau hauv high kub |
Tsis tas li ntawd, PTFE coated ntaub tsis pom zoo siv nrog:
Chlorine trifluoride (ClF₃) - qhov tshwm sim tshwm sim tshwm sim
Oxygen difluoride (OF₂) - cov tshuaj tiv thaiv hnyav
Kua lossis gaseous fluorine (F₂) ntawm qhov kub siab - tawm tsam PTFE
Cov yam ntxwv cuam tshuam rau cov tshuaj tiv thaiv ntawm PTFE Coated Fabric
Ntau yam cuam tshuam rau qhov tseeb corrosion kuj ntawm PTFE high-temperature npuag hauv kev siv tiag tiag hauv ntiaj teb:
Qhov kub thiab txias: Cov tshuaj ua haujlwm ruaj khov yog khaws cia li ntawm -70 ° C txog 260 ° C. Kev tiv thaiv tsis kam tiv thaiv cov tshuaj tshwj xeeb ntawm qhov kub siab heev.
Concentration: Lub sij hawm ntev immersion nyob rau hauv cov concentrated corrosive media yuav ua rau cov khoom ua haujlwm tsis zoo. Kev ntsuam xyuas ntawm qhov chaw raug pom zoo.
Mechanical stress: Combined chemical corrosion thiab mechanical friction accelerates aging. Kev tiv thaiv PTFE txheej los ntawm khawb yog qhov tseem ceeb - ib zaug puas lawm, lub hauv paus fiberglass yuav tsis yooj yim.
Exposure duration: Lub sij hawm luv luv splash kuj txawv ntawm kev immersion tas li.
Siab: Siab siab tuaj yeem yuam cov tshuaj mus rau hauv microscopic pores lossis txheej tsis xws luag.
Aokai PTFE's lab cov ntaub ntawv qhia tau hais tias qhov kub thiab txias kev sib koom ua ke feem ntau underestimated. Piv txwv li, PTFE npuag uas kav ntau xyoo nyob rau hauv 50% sulfuric acid ntawm 100 ° C yuav pom qhov chaw whitening nyob rau hauv lub hlis ntawm 200 ° C nrog tib concentration. Ib txwm siv cov npoo kev nyab xeeb.
Summary - Tshuaj tiv thaiv ntawm PTFE High-Temperature Npuag
Qeb tshuaj |
Resistance Level |
Sau ntawv |
Muaj zog acids (sulfuric, nitric, HCl, HF, aqua regia) |
Zoo heev |
Txog li 260 ° C, tshwj tsis yog kub concentrated oxidizing acids |
Muaj zog alkalis (NaOH, KOH, ammonia) |
Zoo heev |
Tsis muaj degradation tseem ceeb |
Organic kuab tshuaj (kua cawv, ketones, aromatics, roj av) |
Zoo heev |
o tuaj yeem tshwm sim nrog qee cov kuab tshuaj |
Oxidants, ntsev, corrosive gases |
Zoo rau Excellent |
Tshawb xyuas cov xwm txheej tshwj xeeb |
Molten alkali hlau |
Tsis tsim nyog |
Ua kom tiav degradation |
Cov tshuaj fluorinating muaj zog |
Tsis tsim nyog |
Tshuaj tiv thaiv thaum kub kub |
Rau feem ntau muaj tshuaj lom neeg ib puag ncig, PTFE coated ntaub muab kev ntseeg siab, kev ua haujlwm ntev. Txawm li cas los xij, ib txwm txheeb xyuas kev sib raug zoo raws li kev ua haujlwm tiag tiag - tshwj xeeb tshaj yog kub, concentration, thiab kev ntxhov siab txhua yam.
Nyob rau hauv cov ntsiab lus , PTFE high-temperature npuag muaj zoo heev tiv taus rau yuav luag tag nrho cov acids, alkalis, thiab organic solvents nyob rau hauv nws ib txwm ua hauj lwm ntau yam (-70 ° C rau 260 ° C). Qhov tshwj xeeb tseem ceeb yog cov hlau molten alkali thiab muaj zog fluorinating cov neeg ua haujlwm. Kub, concentrated oxidizing acids kuj yuav tsum tau ceev faj ntxiv.
Hauv kev xyaum, qhov kub thiab txias, concentration, thiab mechanical stress ua hauj lwm ua ke los cuam tshuam cov khoom siv lub neej. Rau cov xwm txheej tseem ceeb, peb pom zoo rau kev sim ntawm qhov chaw lossis siv qhov kev nyab xeeb ntawm 30-40 ° C hauv qab qhov ntsuas kub siab tshaj plaws.
Xav tau kev pab nrog ib puag ncig tshuaj lom neeg? Aokai PTFE 's technical team tau sau cov ntaub ntawv corrosion rau ntau pua xov xwm. Tiv tauj peb rau kev taw qhia kev xaiv lossis customized PTFE coated fabric solutions.
Tshaj tawm los ntawm Jiangsu Aokai Tshiab Materials Technology Co., Ltd.
Rau cov ncauj lus kom ntxaws, daim ntawv thov scenarios, thiab customized kev daws teeb meem ntawm tag nrho-series khoom xws li PTFE kub ntaub, PTFE kub daim kab xev, PTFE mesh siv, seamless fusing siv, ib sab PTFE ntaub, kub resistant conveyor siv thiab fiberglass ntaub , thov koj xav tiv tauj peb:
Peb ua raws li kev tshaj lij thiab kev ncaj ncees, mob siab rau muab cov kev daws teeb meem ib leeg thiab cov kev pabcuam siab.
