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Kev nyab xeeb npaum li cas yog Teflon hauv Fabric?

Views: 0     Author: Site Editor Publish Time: 2023-05-22 Keeb Kwm: Qhov chaw

Nug

Kev nyab xeeb npaum li cas yog Teflon hauv Fabric?

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Raws li cov neeg siv khoom, peb niaj hnub nrhiav cov khoom lag luam uas txhim kho peb lub neej zoo. Ib qho kev tsim kho tshiab no yog siv Teflon hauv cov ntaub, ua kev zoo siab rau nws cov khoom tsis zoo thiab siv los ua cov ntaub thaiv. Txawm li cas los xij, ib lo lus nug feem ntau tshwm sim: 'Teflon muaj kev nyab xeeb npaum li cas hauv cov ntaub?' Cia peb tshawb xyuas cov ncauj lus no kom tob.


Hauv qab lub hnub qub ci ntsa iab, backpackers, climbers, thiab tub rog cov neeg ua haujlwm ib yam nkaus tau tso siab rau tus phab ej zais cia rau kev tiv thaiv cov ntsiab lus: PTFE daim ntaub. Qhov kev xav tsis thoob no, ua kev zoo siab rau nws cov dej tsis sib haum, ua pa, thiab ua haujlwm rau cov stains, roj, thiab tshuaj, tau ua ntsiag to tiv thaiv cov neeg taug txuj kev nyuaj los ntawm qhov hnyav tshaj plaws thiab huab cua.


Txawm li cas los xij, tsis yog txhua qhov glitters yog kub. Xyoo 2019, ib zaj yeeb yaj kiab hu ua 'Dub Dej' tau pleev xim rau tus phab ej no hauv lub teeb pom kev phem dua, nthuav tawm qhov muaj peev xwm txaus ntshai nyob hauv qab nws txoj kev tiv thaiv. Kev tsis ntseeg thiab kev txhawj xeeb tau ua rau cov pej xeem, ntau tus tau pib nug txog kev nyab xeeb ntawm kev hnav khaub ncaws ua los ntawm cov khoom siv no. Lub koom haum International Carcinogen tom qab tau muab faib ua PTFE raws li Class 2B carcinogen, ib pawg uas ntxhi ntawm kev pheej hmoo tab sis tsis ua tiav qw.


Niaj hnub no, peb pib ua qhov kev tshawb nrhiav ntawm peb tus kheej: txhawm rau nthuav tawm qhov tseeb tom qab Teflon lub ntsej muag ci ntsa iab thiab txiav txim siab, ib zaug thiab rau tag nrho, yog tias tus neeg saib xyuas ntawm sab nraum zoov zoo li muaj kev nyab xeeb raws li nws cov keeb kwm hais.


Teflon: Kev Taw Qhia

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Teflon yog lub npe nrov rau ib hom polymer hu ua polytetrafluoroethylene (PTFE). Nws yog cov khoom siv feem ntau lees paub rau nws daim ntawv thov hauv cov lauj kaub uas tsis yog-stick, thiab hauv kev lag luam textile, Teflon yog dav siv los ua fabrics dej thiab stain-resistant.


Hauv ib lub chaw kuaj mob ntawm DuPont hauv Tebchaws Meskas, xyoo 1938, Dr. Roy Plunkett dawm tej yam uas tsis tau xav txog. Qhov tshwm sim yog cov hmoov zoo, tom qab ntawd hu ua Teflon. Qhov no Teflon txheej, officially hu ua polytetrafluoroethylene (PTFE), zoo heev unassuming. Tab sis qhov tshwm sim tuaj yeem dag.


Polytetrafluoroethylene PTFE, nyob rau hauv nws cov essence, boasts ib tug tshwj xeeb qauv. Nws cov polymer muaj carbon thiab fluorine, uas ua rau nws cov tshuaj inertia zoo kawg li. Cias muab, qhov no txhais tau tias nws tsis sib tov zoo nrog cov tshuaj corrosive. Hloov chaw, nws sawv ruaj khov, tsis kam hnov ​​​​mob lossis corrode.


Ib tug yuav nug, 'Vim li cas ho tseem ceeb?' Nov yog qhov uas nws ci. Nyob rau hauv lub ntiaj teb uas muaj cov ntaub ntawv uas adhere, stick, los yog daim ntawv cog lus, Teflon tseem nyob twj ywm indifferent. Qhov no tsis yog-stick cim, ua ke nrog ib qho ntawm cov coefficients qis tshaj ntawm kev sib txhuam, ua rau nws zoo tagnrho rau coated cookware. Yog li ntawd, thaum koj kib cov qe thaum sawv ntxov, lawv swb zog tawm ntawm lub lauj kaub.


Txawm li cas los xij, Teflon qhov txiaj ntsig tsis yog nyob hauv chav ua noj xwb. Muab nws lub siab kub ua haujlwm, kev lag luam thoob plaws ntau yam siv nws rau kev siv kub. Qhov tseeb, nws cov kev tiv thaiv corrosion ua rau nws nyiam khaws qee yam tshuaj lom neeg ua phem tshaj plaws.


Ntxiv mus, thaum koj kov lub Teflon nto, nws xav tias nplua, vim nws cov qauv zoo. Hauv kev teeb tsa hluav taws xob, nws cov khoom insulating yog cov khoom muaj nqis, tiv thaiv circuits thiab cov khoom siv los ntawm cov hluav taws xob tsis xav tau.


Txawm li cas los xij, txhua lub npib muaj ob sab. Thaum raug kub kub heev, PTFE coated cookware tuaj yeem emit polymer fumes. Nws tsis tshua muaj, tab sis cov pa taws no tuaj yeem ua rau 'polymer fume fever' hauv tib neeg, ib qho mob uas nco txog tus mob khaub thuas. Peb cov phooj ywg feathered, tsiaj noog, tuaj yeem nkag siab tshwj xeeb rau cov fumes polymer.


Thaum nws cov txheej txheem tsim khoom, lwm tus duab ntxoov ntxoo looms: kev siv perfluorooctanoic acid (PFOA). Txuas nrog kev txhawj xeeb txog kev noj qab haus huv mus sij hawm ntev, kev sib cav txog nws txoj kev nyab xeeb tau mob siab. Ua raws li cov kev txhawj xeeb no, cov tuam txhab tsim khoom hauv Tebchaws Meskas tau txiav txim siab tshem tawm PFOA los ntawm cov txheej txheem.


Nyob rau hauv xaus, Teflon zaj dab neeg yog ib qho ntawm innovation thiab adaptability. Los ntawm nws qhov kev tshawb pom tsis raug mus rau nws txoj kev siv dav, nws txoj kev taug kev taw qhia ob lub peev xwm thiab qhov tsis zoo ntawm cov khoom siv niaj hnub no. Zoo li txhua yam, thaum nws muaj txiaj ntsig zoo, nws yog nyob ntawm peb siv nws kom zoo.

Kev Ntsuas Kev Nyab Xeeb: Nkag siab PFOA

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Tau ntau xyoo, kev nyab xeeb ntawm Teflon yog ib qho kev sib cav loj heev. Qhov kev txhawj xeeb tseem ceeb tsis yog hais txog Teflon (PTFE) nws tus kheej tab sis hais txog cov khoom siv hauv nws cov khoom hu ua perfluorooctanoic acid (PFOA). Cov tshuaj no tau txuas nrog ntau yam teeb meem kev noj qab haus huv, ua rau muaj kev txhawj xeeb ntawm cov neeg siv khoom. Txawm li cas los xij, nws tseem ceeb heev uas yuav tsum nco ntsoov tias txij li xyoo 2013, vim muaj kev txhawj xeeb txog kev noj qab haus huv thiab ib puag ncig, cov tuam txhab loj tau txiav txim siab siv PFOA hauv kev tsim Teflon.

Teflon hauv Fabrics niaj hnub no

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Niaj hnub no lub Teflon siv nyob rau hauv fabrics feem ntau suav hais tias muaj kev nyab xeeb, vim nws tsis muaj PFOA lawm. Teflon txheej yog cov ntaub tiv thaiv muaj zog, pab cov ntaub ntawv tiv thaiv stains thiab txuas ntxiv cov khoom lag luam. Nws yog ib qho tshwj xeeb tshwj xeeb hauv cov khoom siv sab nraum zoov, upholstery, thiab lwm yam khoom raug hnav thiab tsim kua muag.

Puas Muaj Kev Ruaj Ntseg?

Txawm hais tias muaj kev hloov pauv ntawm PFOA, qee qhov kev txhawj xeeb nyob rau hauv kev nyab xeeb ntawm Teflon hauv cov ntaub. Qhov teeb meem tseem ceeb tshwm sim thaum cov khoom siv cua sov rau qhov kub siab heev (tshaj 600 ° F / 316 ° C), thaum lub sijhawm ntawd nws tuaj yeem tso pa tawm uas tuaj yeem tsim teeb meem yog tias nqus tau. Txawm li cas los xij, nyob rau hauv kev siv ib txwm muaj, cov ntaub coated nrog Teflon tsis ncav cuag qhov kub thiab txias, ua rau muaj kev pheej hmoo tsis muaj nyob hauv kev siv txhua hnub.

Ib qho kev xav sib npaug

Teflon siv rau hauv cov ntaub feem ntau muaj kev nyab xeeb rau kev siv txhua hnub. Nws muaj ntau yam kev pab cuam, nrog rau cov stain kuj thiab nce ntaub ntev. Txawm li cas los xij, zoo li txhua yam ntaub ntawv, kev nkag siab txog lawv cov khoom thiab kev siv kom raug yog qhov tseem ceeb rau kev ua kom muaj kev nyab xeeb. Cov kev txhawj xeeb yav dhau los tau ua rau muaj kev hloov pauv tseem ceeb, ua rau Teflon peb siv niaj hnub no muaj kev nyab xeeb dua li qub.


Nco ntsoov, kev paub txog cov khoom uas peb siv txhua hnub yog ib kauj ruam tseem ceeb hauv kev paub txog cov neeg siv khoom. Raws li peb txuas ntxiv kom muaj nuj nqis ntawm kev tsim kho tshiab uas txhim kho peb lub neej, peb yuav tsum tau sib tw pob tshab thiab kev nyab xeeb hauv txhua yam ntawm kev tsim khoom thiab kev siv.


Cov khoom pom zoo

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