Ngokufika kwehlobo, zonke iintlobo zeziselo kwixesha lokuthengisa, abathengi abaninzi bayabuza: yeyiphi ibhotile yesiselo ekhuselekileyo? Ngaba zonke iinkonkxa zine-BPA?
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Unobhala jikelele we-International Food Packaging Association, ingcali yokukhusela indalo u-Dong Jinshi uxelele iintatheli ukuba iplastiki ye-polycarbonate equkethe i-bisphenol A icocekile, akukho lula ukuphuka kunye nezinye iimpawu. Abavelisi bayisebenzisela ukwenza izinto ezahlukeneyo, ezifana neetafile zeplastiki, iibhotile zamanzi zeplastiki, iibhotile zabantwana, iinkonkxa zesnack, njl.njl. Iintlaka ze-epoxy eziqulethe i-bisphenol A zisetyenziswa kakhulu ekugqumeni kwangaphakathi kokutya kunye nezitya zesiselo ezifana neetoti zokutya kunye neetoti. Isizathu sokuba ibhokisi yokupakisha yeentsimbi zetsimbi kunye ne-aluminium iqulethe i-bisphenol A kukuba i-bisphenol A ine-anti-corrosion effect enhle kwaye inokuthintela ngokufanelekileyo i-oksijeni kunye ne-microorganisms ekungeneni kwi-can.
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U-Dong Jinshi ukhumbuza, okwangoku iqulethe i-bisphenol A ayikho kuphela i-aluminium enokwenza i-cola, ene-iron can,ukupakishwa kwe-aluminiyamyesibhozo ubuncwane poruel, iziqhamo ezinkonkxiweyo njalo njalo iqulethe bisphenol A. Noko ke, Dong Jinshi kwakhona wabonisa ukuba oku akuthethi ukuba zonke iinkonkxa ziqulathe BPA, ezinye iinkonkxa ngoku zenziwe ngeplastiki, lo gama nje ayenziwanga PC. zeplastiki, aziqulathanga BPA.

Intshayelelo kwiKhemistri
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I-Bisphenol A, igama lenzululwazi ye-2, i-2-di (4-hydroxyphenyl) propane, yinto ebalulekileyo ye-organic chemical ekrwada, i-phenol kunye ne-acetone ebalulekileyo evela kwi-bisphenol I-molecular space filling model organism, isetyenziswa ikakhulu kwimveliso ye-polycarbonate, epoxy. i-resin, i-polysulfone resin, i-polyphenyl ether resin, i-polyester engaxutywanga kunye nezinye izinto zepolymer. Isenokusetyenziswa kwimveliso ye-plasticizer, i-flame retardant, i-antioxidant, i-heat stabilizer, i-rubber antioxidant, i-pesticide, ipeyinti kunye nezinye iimveliso zekhemikhali ezintle.
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Idatha ibonisa ukuba i-bisphenol A yikhemikhali enetyhefu ephantsi. Uvavanyo lwezilwanyana lufumene ukuba i-bisphenol A inefuthe lokulinganisa i-estrogen, nokuba idosi iphantsi kakhulu, inokwenza isilwanyana sivelise ukukhula kwabasetyhini kwangaphambili, ukwehla kwe-sperm count, ukukhula kwe-prostate kunye nezinye iziphumo. Ukongeza, kuye kwaboniswa ukuba i-bisphenol A inetyhefu ethile ye-embryonic kunye ne-teratogenicity, enokunyusa kakhulu ukwenzeka komhlaza we-ovarian, umhlaza we-prostate, i-leukemia kunye nezinye i-cancer kwizilwanyana.

Indlela yokukhetha i-non-bisphenol A iziselo ezinkonkxiweyo
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Imarike ye-bisphenol A ayizange iphele, kwaye iingozi ezinokubakho ze-bisphenol A zinokubakho. Ke, yeyiphi ipakethe eyeyona ikhuselekileyo emarikeni? Indlela yokuchonga iimveliso zeplastiki ezine-bisphenol A?
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Xa ukhetha isiselo esinamathini, kubaluleke kakhulu ukufunda amanani kwisibonakaliso esingunxantathu phantsi kwebhotile yeplastiki. Ngenxa yokuba inani ngalinye limele izinto zeplastiki, izinto ezahlukeneyo, ukusebenza okungafaniyo, iimeko zokusetyenziswa ngokukhuselekileyo nazo ziyahluka.
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Ngokomgangatho wesizwe, "1" imele i-PET (i-polyethylene terephthalate), esetyenziswa ngokubanzi kwiibhotile zamanzi ezimbiwa kunye neebhotile zesiselo se-carbonated. Ukumelana nobushushu kwi-70 ℃, ilungele kuphela iziselo zeqondo lobushushu okanye iziselo ezikhenkcezisiweyo, ulwelo olunobushushu obuphezulu kulula ukuchaneka, ukusetyenziswa ixesha elide kunokukhupha iigesi eziyingozi; "I-3" imele i-PVC (7810,15.00,0.19%) (i-polyvinyl chloride), engasetyenziselwa ukupakisha ukutya; “4″ imele i-LDPE(i-polyethylene yoxinaniso oluphantsi), esetyenziselwa ifilimu yokutya, ifilimu yeplastiki, njl.njl., xa idibana ne-110℃, kuya kubakho into eshushu yokunyibilika, ngoko ke ngaphambi kokusebenzisa i-oveni ye-microwave, qiniseka ukuba uyayisusa ifilimu yokutya. Ekuqaleni; “5″ imele iPP(ipolypropylene), esetyenziswa kwiibhokisi zesidlo sasemini zemicrowave kwaye inokufudunyezwa; “I-6” imele i-PS(ipolystyrene), esetyenziselwa ukwenza izitya zeebhokisi ze-noodle ezikhawulezayo kunye neebhokisi zokutya okukhawulezayo, kodwa ayinakufudunyezwa kwi-oven microwave, kwaye ayinakusetyenziselwa ukulayisha iasidi eyomeleleyo kunye nezinto zealkaline; "I-7" imele i-polycarbonate (i-PC) kunye nezinye iindidi, oku kuthetha ukuba inani elikunxantathu ngu-7, kufuneka libe ne-BPA.

Siyi-i-aluminiyam inkonkxaimveliso yangaphandle iminyaka engaphezu kwe-15, iminyaka emininzi aluminiyam unako imveliso amava, sinikela ingqalelo kukhuseleko lokutya, ngokuba aluminiyam unako ukutyabeka, zonke ukusetyenziswa kwezinto zangaphakathi ukutyabeka ngokuhambelana nemigangatho yesizwe, ukuqinisekisa ukhuseleko, ukongeza, nathi. velisaBPA free aluminiyam can, wamkelekile abathengi abavela kuwo onke amazwe ukuba beze ukubonisana