Kodi teflon ndi otetezeka bwanji nsalu?

Monga makasitomala, timafunafuna zinthu zomwe zimapangitsa moyo wathu kukhala wamoyo. Kutulutsa kamodzi kotereku kumagwiritsa ntchito teflon mu nsalu, kumakondwerera katundu wake wosagonjetsedwa ndikugwiritsa ntchito ngati nsalu. Komabe, funso nthawi zambiri limabwera: 'Kodi nsalu ili pa nsalu?

Pansi pa nyenyezi ya nyenyezi, obwerera m'mbuyo, okwera, ndi asitikali nawo limodzimodzi adadalira ngwazi yobisika kuti atetezedwe ku zinthu: Ctfe. Chovala chodabwitsachi, chikondwerero cha kusalangosoledwa kwake, komanso kukana madontho, mafuta, ndi mankhwala, amateteza mosawerengeka kwa ma perrains osawerengeka kuchokera kwa ma perrains ndi nyengo.

Komabe, sikuti zonse zowoneka bwino ndi golide. Mu 2019, mapepala a zolembedwa 'Madzi akuda ' pa ngwazi yakuda 'ipake ngwazi iyi mu kuwala koyipa, zoopsa zomwe zingachitike pansi pa mtsogoleri wake woteteza. Kukayikira komanso kukayikira kwa anthu, omwe ambiri mwa iwo adayamba kukayikira chitetezo cha zovala zopereka zopangidwa ndi zinthuzi. Bungwe lapadziko lonse lapansi pambuyo pake polemba ptfe ngati kalasi 2b carcinogen, gulu lomwe limangowononga ziwopsezo koma osafuula.

Masiku ano, timayamba kufunafuna kwathu: Kuvumbula chowonadi chomwe chili kumbuyo kwa teflon's fordeng showded ndi kuti adziwe, kamodzi, ngati woyang'anira panja kwambiri ndi wotetezeka panja panja.

Teflon: Mawu oyamba

Teflon ndi dzina la mtundu wa mtundu wa polymetrafluoro solmblene (ptfe). Ndi nkhani yomwe imadziwika kuti imagwiritsidwa ntchito mu ma panssick pans, ndipo m'makampani ambiri, teflon imagwiritsidwa ntchito popanga nsalu zamadzi ndi zosokoneza.

Mu labu ku Opross ku United States, 1938, Dr. Roy Plunskett adapunthwa pazinthu zosayembekezereka. Zomwe zidawatukula zinali chinthu chabwino chabwino, pambuyo pake Teflon. Kukutira kwa teflon, kutchedwa Polytetrafluofella (PTF), kumawoneka osapumira. Koma maonekedwe akhoza kukhala onyenga.

Polytetrafcooro 11hlene Ptfe, mwakutero, mawonekedwe apadera. Polymer wake amakhala ndi kaboni komanso fluorine, zomwe zimapangitsa kuti mafuta ake agwiritse ntchito mankhwalawa. Mwachidule, izi zikutanthauza kuti sizimasakaniza bwino ndi mankhwala owononga. M'malo mwake, imayimira molimba, kukana kuchita kapena kunyamula.

Munthu angafunse, 'N'chifukwa chiyani izi zikuchitika? ' Apa ndi pomwe zimawalira. Padziko lonse lodzala ndi zinthu zomwe amatsatira, ndodo, kapena kugwiriridwa, teflon sizili bwino. Khalidwe lopanda ndodo, kuphatikiza ndi imodzi mwazovala zotsika kwambiri za mkangano, zimapangitsa kuti zikhale zabwino kwa cootchere yophika. Chifukwa chake, mukamatenthetsa mazira a m'mawawo, amachepetsa poto.

Komabe, ngongole za teflon sizingokhala kukhitchini. Popeza kutentha kwake kwa kutentha, mafakitale ambiri amagwiritsa ntchito kutentha kwa kutentha kwambiri. M'malo mwake, kukana kwake kuphukira kumapangitsa kuti ikhale yomwe imakonda kusungira ena mwa mitundu yankhanza kwambiri.

Kuphatikiza apo, mukakhudza teflon pamtunda, imamverera moterera, chifukwa chapangidwe kwake. M'magetsi amagetsi, malo okhala ndi malo osungika, amateteza madera ndi zida kuchokera kumagetsi osafunikira.

Komabe, ndalama iliyonse ili ndi mbali ziwiri. Mukagonjetsedwa kwambiri, kuphika kwa PTF kuphika kumatha kutulutsa utsi. Ndi osowa, koma mafume awa amatha kutanthauza kuti 'Polymer fuver ' mwa anthu, mawonekedwe amakumbukiranso chimfine. Anzathu, mbalame za ziweto, zimatha kukhala zovuta kwambiri ndi mafosi awa.

Panthawi ya kupanga, mthunzi wina ndi mzere wina: kugwiritsa ntchito zonunkhira acid (pmoa). Zolumikizidwa ndi nkhawa zathanzi laumoyo, kutsutsana ndi chitetezo chake. Kumvera nkhawa izi, opanga ku United States adaganiza zoyambira PFaa kuchokera pa njirayi.

Pomaliza, nthano ya teflon ndi imodzi mwazosintha komanso kusinthasintha. Kuchokera pangozi yake mwangozi, ulendowu umathetsa zonse zomwe zingatheke komanso zokumana nazo zamakono. Monga zinthu zonse, ngakhale zipereka zabwino zambiri, zili kwa ife kuzigwiritsa ntchito mwanzeru.

Kuyang'ana Chitetezo: Kumvetsetsa PFa

Kwa zaka zambiri, chitetezo cha teflon chakhala mutu wovuta kwambiri. Cholinga chachikulu sichinali chokhudza Teflon (PTF) palokha koma pafupi ndi gawo lomwe limagwiritsidwa ntchito popanga zonunkhira zotchedwa ma acid (pvua). Izi zalumikizidwa ndi zovuta zosiyanasiyana zaumoyo, zomwe zimapangitsa nkhawa pakati pa ogula. Komabe, ndikofunikira kudziwa kuti kuyambira 2013, chifukwa cha mavuto azaumoyo komanso zachilengedwe, opanga odzola omwe amapaka kugwiritsa ntchito PFAA popanga teflon.

Teflon mu nsalu lero

Tefloni yamakono yogwiritsidwa ntchito mu nsalu imawonedwa kuti ndi yotetezeka, chifukwa siyikupezekanso PFAA. Kukula kwa teflon ndi woteteza nsalu ya nsalu, ndikuthandizanso zinthu zotsutsa zidole ndikuwonjezera moyo wambiri wa malonda. Ndi gawo lomwe limayamikiridwa kwambiri m'manda panja, upholstery, ndi zinthu zina zomwe zikugwirizana ndi kuvala.

Kodi pali zoopsa zilizonse?

Ngakhale kusiya kuchoka ku PFAA, nkhawa zina zomwe zimadetsa nkhawa za chitetezo cha teflon mu nsalu. Vuto lalikulu limachokera kuti zinthuzo zimatenthedwa kuti zizitentha kwambiri (zopitilira 600 ° F / 316 ° C), nthawi yomwe imamasulira utsi womwe ungakhale wovulaza ngati umakhala. Komabe, munthawi yogwiritsa ntchito bwino, nsalu zokutidwa ndi teflon sizifika pamatenthedwe awa, ndikupangitsa kuti pakhale ngozi zomwe sizingakhale pachiwopsezo cha tsiku ndi tsiku.

Maganizo Abwino

Teflon adagwiritsa ntchito nsalu nthawi zambiri amagwiritsa ntchito tsiku lililonse. Imapereka zabwino zambiri, kuphatikizapo kukana kwa stain ndi kuchuluka kwa nsalu yokhotakhota. Komabe, monga zida zonse, kumvetsetsa zomwe akuwongolera ndizofunikira kwambiri kuti muchepetse chitetezo. Zovuta zomwe zalembedwa m'mbuyomu zapangitsa kuti zisinthe zofunika kuzipanga, zimapangitsa tentloni kukhala lero kukhala zotetezeka kuposa kale.

Kumbukirani, kukhalabe chidziwitso cha zinthu zomwe timagwiritsa ntchito tsiku lililonse ndi gawo lofunikira pakukhala ogula. Pamene tikupitiliza kukondera zinthu zomwe zimathandizira moyo wathu, tiyeneranso kuwonekeranso zinthu zonse zopanga ndi kugwiritsa ntchito.