Teflon ifite umutekano muke mumyenda?

Nkabaguzi, duhora dushakisha ibicuruzwa bitezimbere imibereho yacu. Kimwe muri ibyo bishya ni ugukoresha Teflon mu bitambaro, byizihizwa kubera imiterere irwanya ikizinga kandi bigakoreshwa mu kurinda imyenda. Ariko, ikibazo gikunze kuvuka: 'Teflon ifite umutekano muke mumyenda? ' Reka dusuzume iyi ngingo mubwimbitse.

Munsi yikirere cyuzuye inyenyeri, ibikapu, abazamuka, hamwe nabasirikare kimwe bashingiye ku ntwari yihishe kugirango birinde ibintu: umwenda wa PTFE. Iyi myenda itangaje, yizihizwa kubera kutagira amazi ntagereranywa, guhumeka, no kurwanya ikizinga, amavuta, n’imiti, yarinze bucece abadiventiste batabarika mu turere dukabije n’ikirere.

Ariko, ntabwo ibintu byose birabagirana ari zahabu. Muri 2019, documentaire yiswe 'Amazi Yirabura ' yashushanyije iyi ntwari mu mucyo mubi, igaragaza akaga gashobora kwihisha munsi yacyo. Gushidikanya n'impungenge byuzuye mu baturage, benshi muri bo batangira kwibaza ku mutekano wo kwambara imyenda ikozwe muri ibi bikoresho. Ikigo mpuzamahanga gishinzwe kurwanya kanseri nyuma cyashyize PTFE nka kanseri yo mu cyiciro cya 2B, icyiciro kongorera ingaruka zishobora guterwa ariko ntigisakuze rwose.

Uyu munsi, twatangiye gushakisha ubwacu: guhishura ukuri inyuma yuruhande rwa Teflon rutangaje kandi tumenye rimwe na rimwe, niba uyu murinzi wo hanze akomeye afite umutekano nkuko umurage wabivuze.

Teflon: Intangiriro

Teflon ni izina ryirango ryubwoko bwa polymer buzwi nka polytetrafluoroethylene (PTFE). Nibikoresho bisanzwe bizwi kubishyira mu bikoresho bidafite inkono, no mu nganda z’imyenda, Teflon ikoreshwa cyane mu gukora imyenda amazi kandi idashobora kwangirika.

Muri laboratoire i DuPont muri Amerika, 1938, Dr. Roy Plunkett yaguye ku kintu gitunguranye. Icyagaragaye ni ifu nziza, nyuma yitwa Teflon. Ipitingi ya Teflon, yiswe polytetrafluoroethylene (PTFE), yasaga nkaho idashimishije. Ariko ibigaragara birashobora kubeshya.

Polytetrafluoroethylene PTFE, muri rusange, ifite imiterere yihariye. Polimeri yacyo igizwe na karubone na fluor, bivamo inertia idasanzwe ya chimique. Muri make, ibi bivuze ko itavanze neza nimiti yangirika. Ahubwo, ihagaze neza, yanze kubyitwaramo cyangwa kwangirika.

Umuntu arashobora kubaza, 'Kuki ibyo bifite akamaro? ' Dore aho bimurika. Mwisi yuzuye ibikoresho byubahiriza, inkoni, cyangwa umurunga, Teflon ikomeza kutitaho ibintu. Iyi miterere idafite inkoni, ihujwe nimwe muri coefficient zo hasi cyane zo guterana, bituma biba byiza kubikoresho bitetse. Noneho, iyo ukaranze ayo magi yo mugitondo, aranyerera bitagoranye.

Nyamara, ibyiza bya Teflon ntabwo bigarukira mu gikoni gusa. Urebye ubushyuhe bwayo bwinshi, inganda murwego runini zikoresha mugukoresha ubushyuhe bwinshi. Mubyukuri, kurwanya ruswa kwayo bituma bikundwa kubika bimwe mu miti ikaze.

Byongeye kandi, iyo ukoze hejuru ya Teflon, irumva itanyerera, bitewe nuburyo bwiza. Mu mashanyarazi, ibikoresho byayo byerekana ko bifite agaciro, birinda imiyoboro n'ibikoresho bituruka kumashanyarazi adashaka.

Ariko, igiceri cyose gifite impande ebyiri. Iyo ukorewe ubushyuhe bwinshi, ibikoresho bya PTFE bisize birashobora gusohora imyotsi ya polymer. Ntibisanzwe, ariko ibyo byuka birashobora gutuma 'polymer fume fever ' mubantu, ibintu byibutsa ibicurane. Inshuti zacu zifite amababa, inyoni zinyamanswa, zirashobora kumva cyane cyane imyotsi ya polymer.

Mugihe cyo kuyikora, ikindi gicucu kiragaragara: ikoreshwa rya aside ya perfluorooctanoic (PFOA). Bifitanye isano n’igihe kirekire cy’ubuzima, impaka ku mutekano wacyo zabaye nyinshi. Kubera kumvira izo mpungenge, abayikora muri Amerika bahisemo gukuraho PFOA muriyi nzira.

Mu gusoza, imigani ya Teflon ni imwe mu guhanga udushya no guhuza n'imiterere. Kuva yavumburwa kubwimpanuka kugeza ikoreshwa cyane, urugendo rwayo rusobanura ubushobozi nibibi byibikoresho bigezweho. Kimwe nibintu byose, mugihe bitanga inyungu nini, nitwe tugomba kubikoresha neza.

Gusuzuma Umutekano: Gusobanukirwa PFOA

Imyaka myinshi, umutekano wa Teflon wabaye ingingo zishyushye cyane. Impungenge zibanze ntabwo zerekeranye na Teflon (PTFE) ubwayo ahubwo zerekeranye nuruvange rwakoreshejwe mu musaruro rwarwo witwa aside yitwa perfluorooctanoic (PFOA). Iyi ngingo yahujwe nibibazo bitandukanye byubuzima, bitera impungenge mubaguzi. Icyakora, ni ngombwa kumenya ko guhera mu 2013, kubera ubuzima n’ibidukikije, inganda zikomeye zahagaritse ikoreshwa rya PFOA mu musaruro wa Teflon.

Teflon mu myenda uyumunsi

Uyu munsi Teflon ikoreshwa mubitambaro ahanini ifatwa nkumutekano, kuko itagifite PFOA. Igifuniko cya Teflon nikingira imyenda ikomeye, ifasha ibikoresho kurwanya ikizinga no kwagura ibicuruzwa kuramba. Nibintu byashimiwe cyane mubikoresho byo hanze, hejuru, nibindi bintu bigomba kwambara.

Hoba hari Akaga?

Nubwo kuva muri PFOA, impungenge zimwe ziratinda kumutekano wa Teflon mumyenda. Ikibazo nyamukuru kivuka mugihe ibikoresho bishyushye kubushyuhe bukabije cyane (hejuru ya 600 ° F / 316 ° C), icyo gihe birashobora kurekura imyotsi ishobora kwangiza iyo ihumeka. Ariko, mubihe bisanzwe bikoreshwa, imyenda isize hamwe na Teflon ntabwo igera kuri ubu bushyuhe, bigatuma ibyago bitabaho mubuzima bwa buri munsi.

Icyerekezo gishyize mu gaciro

Teflon ikoreshwa mubitambaro muri rusange umutekano mukoresha burimunsi. Itanga inyungu nyinshi, zirimo kurwanya ikizinga no kongera kuramba. Ariko, nkibikoresho byose, gusobanukirwa imiterere yabyo no gukoresha neza ni ngombwa kugirango umutekano ubeho. Impungenge zavuzwe kera zatumye habaho impinduka zingenzi zinganda, bituma Teflon dukoresha uyumunsi itekanye kuruta mbere hose.

Wibuke, gukomeza kumenyeshwa ibicuruzwa dukoresha burimunsi nintambwe yingenzi yo kuba abaguzi babizi. Mugihe dukomeje guha agaciro udushya twongera ubuzima bwacu, tugomba kandi guharanira gukorera mu mucyo numutekano mubice byose byumusaruro nikoreshwa.