Ukwaleka kwepolymer okanye i-polytetrafluoroethylene kwi-cookware ivelisa indawo engasingathi.Ifumaneka ngaphezu kweminyaka engama-60, i-polymer inceda ukuthintela amaqanda kunye neepanekuku ukuba zinganamatheli kwi-skillet.Ngelishwa, i-polymer coating iyacima xa ikrwelwa ngezitya zasekhitshini ezirhabaxa okanye iipads ezirhabaxa.Enye inkxalabo ibandakanya i-perfluorooctanoic acid okanye i-PFOA, ikhemikhali esetyenziswa njenge-process aid ye-polymer.Iye yanxulunyaniswa nomhlaza kwizilwanyana zaselebhu.Nangona kunjalo, i-cookware eyenziwe nge-polymer ithathwa njengekhuselekile ukuyisebenzisa, nokuba ikrwele.
Kuyaziwa ngokubanzi iminyaka ukuba ukuvezwa komntu kwi-PFOA kuphantsi kakhulu phantsi kweemeko eziqhelekileyo zokusetyenziswa kwe-cookware.Ingxelo yophononongo esandula ukukhutshwa liqela lesithathu elithenjiweyo, IiNgxelo zabaThengi, iphinde yaqinisekisa ukuba umngcipheko wokusetyenziswa kwepani yokungagxili uphantsi kakhulu, kwaye uye wehla."IiNgxelo zoMthengi zivavanye iipaneli ezingagxiliyo ezivela kubavelisi abahlukeneyo ukuvavanya ukhuseleko lweepaneli ezintsha nezisetyenzisiweyo kwi-heat ye-204 C (400 F) kwaye zafumanisa ukuba ukukhutshwa kwe-PFOA kwakuncinci.“Elona nqanaba liphakamileyo lalingaphantsi ngokuphindwe kali-100 kunala manqanaba ohlolisiso lwezilwanyana abonisa ukuba abangela inkxalabo yokuchanabeka ngokuqhubekayo kwiPFOA,” linikela le ngxelo eli phephancwadi kwinkupho yalo kaJuni."Ngeepani ezindala, ukukhutshwa bekungenakulinganiswa."I-Health Canada ithe i-non-stick coatings ikhuselekile ukuba ingasetyenziswa kumaqondo obushushu angaphantsi kwe-350 C (662 F).Kodwa, iarhente yomdibaniso yathi xa kushushu kakhulu, kungakhutshwa umsi ocaphukisayo okanye onetyhefu. ”
Amanqaku onokucinga ngawo:
Ukuba upheka kumaqondo obushushu angaphezu kwama-500 F, iigrisi eziqhelekileyo zokupheka kunye neeoyile zikwindawo, okanye ziya kufikelela kwakamsinya, “kwindawo yokudanyaza.”Ke, udala umngcipheko omkhulu womlilo wegrisi kwaye ukhupha ukutya kunye negrisi, kwaye ke ukhupha umsi kunye nomphunga onokuba yingozi kwimpilo yakho nakwimpilo yesilwanyana sakho sasekhaya, nokuba loluphi na uhlobo.ipaniusebenzisa!
Iikhemikhali ezifana nePFOA zongezwa kwindawo ephantsi kakhulu kumgubo wefluoro-polymers ukunceda umgubo wepolymer ongeyontonga unamathele, kumaleko alinganayo, kwistampu esandula kugximfizwa, ukuphoswa, okanye ukusonta iipani, ngaphambi "kokubhaka" intonga engakhuni. ukugqiba polymer.Ngeli xesha lokubhaka-kwinqanaba lokwenziwa kwe-cookware, isambuku sentsalela ye-PFOA-emulsifiers efana ne-emulsifiers ikhutshelwa kwisixokelelwano sokukhupha umsi ukusuka kwi-oveni ephezulu yokwenza ubushushu.Kulapho kufuneka ulawulo lomphunga ukuze kuncitshiswe ukuba sesichengeni emsebenzini.
Ukusasazeka kwe-bio-accumulation ye-PFOA kunye ne-PFOA-efana nezixhobo kwiintlobo ezininzi zegazi elifudumeleyo kwihlabathi jikelele akunakwenzeka ukuba kubangelwe kakhulu kwi-cookware.Ayilulo lonke uluntu olukwaziyo ukufikelela kwi-cookware engafakwanga!Kufuneka sijonge enye i-PFOA njengokusetyenziswa kokuphela kwezinto ukufumanisa ukuba kuvela phi na ukuvezwa kwezilwanyana.
Ixesha lokuposa: Apr-26-2017