Ib txheej ntawm polymer los yog polytetrafluoroethylene ntawm cookware ua ib qho chaw uas tsis yog-stick.Muaj rau ntau tshaj 60 xyoo, polymer pab tiv thaiv qe thiab pancakes los ntawm lo rau hauv ib lub skillet.Hmoov tsis zoo, cov txheej txheej polymer chips tawm thaum khawb los ntawm cov khoom siv hauv chav ua noj ntxhib lossis cov ntaub nplaum nplaum.Lwm qhov kev txhawj xeeb suav nrog perfluorooctanoic acid lossis PFOA, cov tshuaj siv los ua kev pabcuam rau cov khoom siv polymer.Nws tau txuas nrog mob qog noj ntshav hauv cov tsiaj kuaj.Txawm li cas los xij, cov khoom siv polymer-coated yog suav tias yog kev nyab xeeb siv, txawm tias khawb.
Nws tau paub dav dav rau ntau xyoo tias tib neeg raug rau PFOA yog tsawg heev nyob rau hauv ib txwm tsis-stick cookware siv tej yam kev mob.Ib tsab ntawv tshaj tawm txoj kev tshawb fawb nyuam qhuav tso tawm los ntawm ib tus neeg thib peb uas ntseeg siab, Consumer Reports, tau rov xyuas dua tias qhov kev pheej hmoo ntawm kev siv lub lauj kaub uas tsis yog nplaum yog tsawg heev, thiab qis dua."Cov Lus Qhia Cov Neeg Siv Khoom tau sim cov lauj kaub uas tsis yog nplaum los ntawm ntau lub tuam txhab los sim kev nyab xeeb ntawm cov lauj kaub tshiab thiab siv cov cua sov ntawm 204 C (400 F) thiab pom tias PFOA emissions tsawg heev."Qhov siab tshaj plaws yog kwv yees li 100 npaug qis dua qib uas cov tsiaj tshawb fawb qhia tias muaj kev txhawj xeeb rau kev cuam tshuam tsis tu ncua rau PFOA," cov ntawv xov xwm tshaj tawm hauv nws lub Rau Hli qhov teeb meem."Nrog cov lauj kaub uas muaj hnub nyoog, emissions tau ntsuas tsis tau."Kev Noj Qab Haus Huv Canada tau hais tias cov txheej txheem tsis yog nplaum muaj kev nyab xeeb rau kev siv ntawm qhov kub ntawm 350 C (662 F).Tab sis, tsoomfwv lub chaw haujlwm tau hais tias muaj cua sov ntau dua, ua rau khaus lossis pa phem tuaj yeem raug tso tawm. "
Cov ntsiab lus xav txog:
Yog tias koj ua noj ntawm qhov kub siab tshaj 500 F, cov roj ua noj ib txwm thiab cov roj nyob ntawm, lossis tej zaum yuav ncav cuag sai, "flash point."Yog li ntawd, koj tab tom tsim muaj kev pheej hmoo loj ntawm cov roj hluav taws kub thiab tseem ua rau cov khoom noj thiab roj, thiab yog li tso pa taws thiab vapors uas yuav ua rau koj thiab koj tus tsiaj noj qab haus huv, tsis hais hom twg.pankoj siv!
Cov tshuaj zoo li PFOA tau ntxiv ntawm qhov tsis tshua muaj siab rau cov hmoov fluoro-polymers los pab cov hmoov nplej uas tsis yog-stick polymer ua raws, nyob rau hauv ib txheej, kom tsis ntev los no stamped, cam khwb cia, los yog spun pans, ua ntej "ci rau" cov tsis-stick. polymer tiav.Thaum lub sij hawm no ci-rau theem ntawm kev tsim khoom noj khoom haus, feem ntau ntawm cov seem PFOA zoo li emulsifiers raug tsav tawm mus rau lub qhov hluav taws xob fume los ntawm qhov kub kub tsim qhov cub.Qhov ntawd yog qhov uas yuav tsum tau muaj kev tswj hwm vapor los txo cov neeg ua haujlwm raug.
Kev nthuav dav bio-accumululation ntawm PFOA thiab PFOA-zoo li cov ntaub ntawv nyob rau hauv ntau hom ntshav sov nyob ib ncig ntawm lub ntiaj teb no yog tsis zoo li yuav ua rau muaj feem cuam tshuam rau cookware.Tsis yog txhua lub zej zog txawm muaj kev nkag mus rau cov khoom noj uas tsis yog lo!Peb yuav tsum saib mus rau lwm yam PFOA zoo li cov khoom siv kawg los txiav txim seb qhov twg cov tsiaj loj tuaj los.
Post lub sij hawm: Apr-26-2017