Teflon yakachengeteka here?

Mumakicheni eAmerica, Teflon yakavharwa mapani inopenya. Mashiripiti avo ari nyore kuchenesa? Asi, kuzevezerana kunomuka: 'Ko nePFOA? Uye kupisa kwakanyanya?' Pakati pekukwezva kwezvigadzirwa zveTeflon, zvinonetsa kunyura. Nengano dzehutsi hwepolymer uye mibvunzo pamusoro pekuchengetedza, tinozviwana tiri pamharadzano. Simbi isina tsvina uye simbi yakakandwa zvinokwezva, asi nyaya yaTeflon inokumbira kutaurwa. Ngatinyure mukati.

Chii chinonzi Teflon?

Teflon izita remhando, rakatanga kugadzirwa neChemours Company, yemhando dzakasiyana dzezvigadzirwa zvakavakirwa zvakanyanya pa polytetrafluoroethylene (PTFE). Iyo inozivikanwa zvakanyanya kune yayo isiri-tsvimbo zvivakwa uye yave zita repamba rinofanana ne-isina-stick cookware uye akasiyana emamwe maapplication, akadai sekuvhara tambo, zvisimbiso, uye kunyangwe zvipfeko.

Wakamboburitsa pani iya yakapfava inovimbisa chikafu chemangwanani chisina-tsvimbo? Ndiwo mashiripiti eTeflon. Yakazvarwa kubva pachisungo pakati pekabhoni nefluorine, zvigadzirwa zveTeflon zvakarwira nyika yezvipfeko zvisina matanda, kushandura makicheni edu uye kuita kuchenesa kuve nemhepo.

Asi heino zano rekugadzirisa: kuzevezera kwe 'PFOA' kana 'perfluorooctanoic acid' kunowanzo tenderera kuTeflon hurukuro. Nhoroondo yakabatana nekugadzirwa kweTeflon, kushushikana kwakawedzera apo Teflon yakavharwa cookware yakasangana nekupisa kukuru, ichinongedza hutsi hwepolymer. Tinotenda, kuvandudzwa kwakapinda. Nhasi, zvigadzirwa zveTeflon zvakawanda zvinopfeka bheji rekuti 'PFOA-isina', kuve nechokwadi chekuti mapakeke ako nerunyararo rwepfungwa zviri mumaoko akanaka.

Saka, chii chinonzi PFOA?PFOA, chipfupi cheperfluorooctanoic acid, isanganiswa yekugadzira yakamboshandiswa zvakanyanya mumidziyo yekubikira uye nezvimwe zvakasiyana zvigadzirwa. Kurambira mumhoteredzo uye kwakabatana nezvinetso zvehutano zvakati wandei, kushandiswa kwayo kwakadzimwa zvakanyanya nevagadziri mumakore achangopfuura nekuda kwekuchengetedza.

Chii chinonzi PTFE Coated?

Polytetrafluoroethylene (PTFE) inogadzira fluoropolymer ye tetrafluoroethylene. Ipurasitiki inoshanda zvikuru inozivikanwa nekusanamatira zvimiti, kupikisa kwekushisa kwepamusoro, uye kushomeka kwemakemikari. Iyo PTFE yakavharwa inogona kuiswa kune dzakasiyana siyana zvigadzirwa, kubva pani kusvika kune muchina zvikamu, kuvapa nzvimbo yakatsetseka, isina-reactive, uye isina tsvimbo.

Kana iwe ukatsvedza zai kubva pani yako ne zero kukakavara, uri kusangana nezvishamiso zvePTFE, inowanzozivikanwa seTeflon yakashongedzwa. Ichi chishamiso chisina kumira, chakazvarwa kubva kucarbon uye fluorine, chinoita cookware chiroto chekubata uye nyore kuchenesa.

Asi heino tidbit: zvigadzirwa zvekutanga zveTeflon zvakambopindirana ne 'PFOA', zvichikonzera mheremhere apo zvinhu izvi zvakasangana nekupisa kwakanyanya, zvichinongedza hutsi hwepolymer. Nekukurumidza kusvika nhasi, uye zvigadzirwa zveTeflon zvakawanda zvinozvirumbidza nebheji 'PFOA-yemahara', kuve nechokwadi chekuti kubika kwako kusingakanganise kuchengetedza.

PTFE Yakaipa Kwauri Here?

Yakachena PTFE inert, pamusimboti wayo, PTFE, moyo wezvakawanda zveTeflon zvigadzirwa, inoramba isiri reactive. Chisungo chayo chekabhoni uye fluorine chinova nechokwadi chekuti haina kunyanya kuita. Zvisinei, kurova kunoonekwa nekupisa kukuru. Pakunyanya tembiricha (kazhinji pamusoro pe570°F kana 300°C), pane mukana wekupisa utsi hwepolymer, dzimwe nguva zvichikonzera 'polymer fume fever'. Izvi zvakati, mumamiriro ezvinhu ekubika, PTFE-coated cookware haisviki tembiricha idzi.

Kuwedzera kuunyana kune iyo ngano 'PFOA'. Kamwe chikamu chenyaya yeTeflon, yakasimudza tsiye nekuda kwekunetsekana kwehutano pakupisa kwakanyanya. Mashoko akanaka? Zvigadzirwa zvemazuva ano zveTeflon zvinodadisa kutakura chitambi che 'PFOA-yemahara'.

Muchidimbu, sechishandiso chipi nechipi mukicheni, Teflon cookware, kana yakashandiswa zvakanaka, inobatanidza nyore nekuchengeteka.

Teflon Inotyisa Here?

PTFE, ine musanganiswa wayo wakasiyana wekabhoni uye fluorine, inomira pachena nekuda kwemakemikari inertness. Izvi zvinoreva kuti, pasi pemamiriro ezvinhu akajairika, inongofanana nehari yesimbi isina tsvina yaungashandisa soups kana simbi yakakandwa skillet yezvimedu zvako zvakatsva. Izvo hazvidyidzane, zvinongorega chikafu chichiyerera.

Nekudaro, kana rondedzero ichichinja kusvika pakupisa kwakanyanya, zvinhu zvinotora tad steamy. Kusundira nonstick cookware kune tembiricha yakanyanyisa, kupfuura iyo yakakurudzirwa chiyero, inogona kutungamira mukuburitswa kwehutsi hwepolymer. Vamwe vanhu, kana vakafumurwa, vanogona kusangana nekusagadzikana kwenguva pfupi kunozivikanwa se 'polymer fume fever'.

Ipapo pane subplot ye 'PFOA'. Kunyange yakambobatanidzwa nekugadzira kwezvimwe zvigadzirwa zveTeflon, kushushikana nezvehutano kwakakonzera maindasitiri pivot. Nhasi, iyo inopenya inopenya zvakajeka pane zvakawanda zveTeflon zvigadzirwa zvakadhindwa ne 'PFOA-yemahara', chirevo chekuenderera mberi kwekushanduka.

Saka, nepo teflon yakashongedzwa yakaita kuti makicheni edu ave nyore-kuchenesa nzvimbo dzekutizira, dzinouya neine mantra iri nyore: remekedza miganhu yavo. Yakabatwa nehanya, ngano yePTFE ndechimwe chekushandisa, kwete chepfu.

Teflon Yakachengeteka?

PTFE, pamwoyo wayo, kusanganiswa kwekabhoni uye fluorine. Ichi chemikemikari chisungo chinochipa inertness yechisikigo, zvichiita kuti ive ruva remadziro. Kungofanana nehari yako yakavimbika yesimbi isina tsvina kana simbi yakasakara, haisanganisike; zvinongorerutsa.
Nekudaro, senge chero mutambi akanaka, Teflon yakashongedzwa ine yayo yakasarudzika nhanho marongero. Pinda mukupisa kwakanyanya, uchikwira kupfuura nzvimbo yayo yekunyaradza, uye unogona kusangana nehutsi hwepolymer. Nepo kwenguva pfupi, kuratidzwa kunogona kutungamira kune isingawanzo zivikanwa 'polymer fume fever'.

Rondedzero ye 'PFOA' yakamborukwa muPTFE ngano, ichimutsa hutano. Asi shanduko ndiyo musimboti wekuvandudza. Misika yemazuva ano inopenya neTeflon zvigadzirwa zvinodadisa 'PFOA-yemahara' mabheji, zvichiratidza nzira yakachengeteka yekugadzira.

Mukuita kukuru kwehunyanzvi hwekubika, nekutarisira kwakakodzera, PTFE mumachira asina chimuti inoramba iri nhengo yakavimbika yakakandwa. Inovimbisa-nyore-ku-clean interludes uye kushanda zvakanaka, pasina kukanganisa kuchengetedza kwekuchengetedza.Kana yakashandiswa nemazvo, PTFE-yakavharidzirwa zvigadzirwa zvakachengeteka. Zvakakosha ku:
1.Kudzivisa Kupisa: Usambofa wakasiya cookware yako yakavharwa nePTFE ichipisa zvakanyanya kwenguva yakareba.
2.Shandisa Zvishandiso Zvinyoro: Dzivisa simbi kana zvinhu zvinopinza zvinogona kukwenya uye kusvibisa coating.
3.Kutenga kubva kuVagadziri Vanoremekedzwa: Iva nechokwadi chokuti chigadzirwa chacho chakasimbiswa PFOA-isina uye inonamatira kune kuchengeteka uye maitiro emhando.