Teflon ifite umutekano?

Mu gikoni cyo muri Amerika, Teflon yometseho ibishishwa. Amarozi yabo yoroshye-asukuye? Nyamara, havuka kwongorera: 'Bite se kuri PFOA? N'ubushyuhe bwinshi? ' Hagati y'ibicuruzwa bya Teflon, impungenge zirashya. Hamwe n'imigani yumwotsi wa polymer nibibazo byumutekano, twisanze mumihanda. Ibyuma bitagira umuyonga hamwe nicyuma gisaba, ariko inkuru ya Teflon irasaba kubwirwa. Reka twibire.

Teflon ni iki?

Teflon ni izina ryirango, ryahimbwe na Company ya Chemours, kubicuruzwa bitandukanye bishingiye cyane cyane kuri polytetrafluoroethylene (PTFE). Irazwi cyane kubera imiterere idafite inkoni kandi yahindutse izina ryurugo rihwanye nibikoresho bitetse hamwe nibindi bikoresho bitandukanye, nko kubika insinga, kashe, ndetse n imyenda.

Wigeze ukuramo iyo pani nziza isezeranya kutagira inkoni ya mugitondo? Ubwo ni amarozi ya Teflon. Ibicuruzwa bya Teflon byavutse ku isano iri hagati ya karubone na fluor, byatsindiye isi imyenda idahwitse, ihindura ibikoni byacu kandi isukura umuyaga.

Ariko hano hari umugambi mubi: kwongorera kwa 'PFOA' cyangwa 'acide perfluorooctanoic' bikunze kureremba mubiganiro bya Teflon. Amateka afitanye isano nuburyo bwo gukora Teflon, impungenge zabaye nyinshi mugihe Teflon yatwikiriye ibikoresho byo guteka byahuye nubushyuhe bwinshi, byerekana ko imyotsi ishobora kuba. Igishimishije, udushya twinjiye. Uyu munsi, ibicuruzwa byinshi bya Teflon byambara ikirango cyo kuba 'PFOA-free', byemeza ko pancake yawe n'amahoro yo mumutima biri mumaboko meza.

None, PFOA ni iki? PFOA, ngufi ya acide ya perfluorooctanoic, ni urugimbu rwubukorikori rumaze gukoreshwa cyane mubikoresho bitetse kandi bindi bicuruzwa bitandukanye. Gukomeza ibidukikije kandi bifitanye isano nibibazo byinshi byubuzima, imikoreshereze yacyo yagiye ihagarikwa n’abakora mu myaka yashize kubera gutekereza ku mutekano.

Niki PTFE Yashizweho?

Polytetrafluoroethylene (PTFE) ni fluoropolymer ya syntetique ya tetrafluoroethylene. Ni plastike ikora cyane izwiho kuba idafite inkoni, kurwanya ubushyuhe bwinshi, hamwe no kurwanya imiti. PTFE yatwikiriwe irashobora gukoreshwa mubicuruzwa byinshi, kuva kumasafuriya kugeza kumashini, kubaha ubuso bworoshye, budakora, kandi butari inkoni.

Iyo ukuyemo igi hejuru yisafuriya hamwe na zeru zeru, uba uhuye nibitangaza bya PTFE, bakunze kwita Teflon coated. Iki gitangaza kidasanzwe, cyavutse kuri karubone na fluor, bituma ibikoresho byo guteka ari inzozi zo gukora kandi byoroshye koza.

Ariko hano hari amakuru: ibicuruzwa bya Teflon kare bigeze guhuzwa na 'PFOA', bigatera impagarara mugihe ibyo bintu byahuye nubushyuhe bwinshi, byerekana ko imyuka ya polymer ishobora kuba. Ihute imbere uyumunsi, kandi ibicuruzwa byinshi bya Teflon birata ikirango cya 'PFOA-idafite', byemeza ko guteka kwawe kutaruhije guhungabanya umutekano.

PTFE Nibi Kuriwe?

PTFE yuzuye ni inert, yibanze, PTFE, umutima wibicuruzwa byinshi bya Teflon, ikomeza kutitabira. Isano ya karubone na fluor yemeza ko ahanini ari pasiporo. Nyamara, igituba kigaragara hamwe nubushyuhe bwinshi. Ku bushyuhe bwo hejuru cyane (ubusanzwe hejuru ya 570 ° F cyangwa 300 ° C), hashobora kubaho umwotsi wa polymer, rimwe na rimwe bigatera 'polymer fume fever'. Ibyo byavuzwe, mugihe gisanzwe cyo guteka, ibikoresho bitetse PTFE bitagera kuri ubu bushyuhe.

Ongeraho inkeke kumugani ni 'PFOA'. Bimaze kuba igice cya Teflon, cyazamuye amaso kubera impungenge z'ubuzima ku bushyuhe bwinshi. Ubutumwa bwiza? Uyu munsi ibicuruzwa bya Teflon byishimye bifite kashe ya 'PFOA-yubusa'.

Muri make, nkigikoresho icyo aricyo cyose mugikoni, ibikoresho bya Teflon, iyo bikoreshejwe neza, bivanga byoroshye numutekano.

Teflon ni uburozi?

PTFE, hamwe nuruvange rwihariye rwa karubone na fluor, ihagaze neza kubudahangarwa bwimiti. Ibi bivuze, mubihe bisanzwe, ni pasiporo nkinkono yicyuma ushobora gukoresha kumasupu cyangwa ubuhanga bwicyuma kugirango ushakishe. Ntabwo ikora, ireka ibiryo bikanyerera.

Ariko, iyo inkuru ihinduye ubushyuhe bwinshi, ibintu bigenda bihinduka. Gusunika ibikoresho bidatetse kubushyuhe bukabije, birenze urugero byasabwe, bishobora gutuma imyuka ya polymer irekurwa. Bantu bamwe, iyo bagaragaye, barashobora guhura nigihe gito kizwi nka 'polymer fume fever'.

Noneho hariho subplot ya 'PFOA'. Mugihe bimaze guhuzwa nuburyo bwo gukora ibicuruzwa bimwe na bimwe bya Teflon, impungenge zingaruka zubuzima zatumye inganda ziba ingenzi. Uyu munsi, urumuri rumurika cyane ku bicuruzwa byinshi bya Teflon byashyizweho kashe ya 'PFOA-free', bikaba byerekana ko ubwihindurize bukomeje.

Mugihe rero, mugihe teflon yatwikiriye yatumye igikoni cyacu cyoroha-gusukurwa, bazanye na mantra yoroshye: kubaha imipaka yabo. Ukoresheje ubwitonzi, imigani ya PTFE nimwe mubyingenzi, ntabwo ari uburozi.

Teflon ifite umutekano?

PTFE, kumutima wacyo, ni uguhuza karubone na fluor. Iyi miti ihuza imiti itanga ubudahangarwa busanzwe, bigatuma iba indabyo. Nka nkono yawe yizewe idafite inkono cyangwa ibyuma bishaje, ntibivanga; byoroshe gusa.
Ariko, nkumuntu wese ukora neza, Teflon yatwikiriye ifite ibyiciro byateganijwe. Witondere ubushyuhe bwinshi, uzamuka urenze ahantu heza, kandi ushobora guhura numwotsi wa polymer. Mugihe gito, guhura bishobora kuganisha ku gake gake 'polymer fume fever'.

Ibisobanuro bya 'PFOA' bimaze kuboha mugani wa PTFE, bitera impungenge ubuzima. Ariko impinduka ni ishingiro ryo guhanga udushya. Isoko ryuyu munsi rifite ibicuruzwa bya Teflon byishimira kwerekana ibirango bya 'PFOA-free', byerekana uburyo bwo gukora neza.

Mubikorwa bikomeye byubuhanzi bwo guteka, hamwe nubwitonzi bukwiye, PTFE mubitambaro bidakomeye bikomeza kuba umunyamuryango wiringirwa. Isezeranya byoroshye-gusukura interineti no gukora neza, bitabangamiye umutekano wumutekano.Iyo ikoreshejwe neza, ibicuruzwa bisize PTFE bifite umutekano. Ni ngombwa kuri:
1. Irinde gushyuha: Ntuzigere usiga ibikoresho bya PTFE bitetse kubushyuhe bwinshi mugihe kirekire.
2. Koresha ibikoresho byoroheje: Irinde ibyuma cyangwa ibintu bikarishye bishobora gushushanya no gutesha agaciro igifuniko.
3.Gura ibicuruzwa bizwi: Menya neza ko ibicuruzwa byemewe PFOA kandi byubahiriza umutekano nubuziranenge.