Iglasi inozinzo oluphezulu lwekhemikhali.Njengesitya sokutya kunye neglasi yesiselo, umxholo awuyi kungcoliswa.Njengomhlobiso okanye iimfuno zemihla ngemihla, impilo yomsebenzisi ayiyi konakala.
(Kwiminyaka yakutshanje, kuye kwafunyaniswa ukuba i-bisphenol A iyancipha xa iibhotile zeplastiki zishushu kwi-110 ° C, kwaye i-bisphenol A (BPA) iphazamisa ukukhutshwa komntu kwaye inefuthe elibi kakhulu kwiintsana.
Ngo-Oktobha 2008, iKhanada yavala ukuthengiswa kweebhotile ze-bisphenol A.Ngo-Matshi 2009, i-EU yavala ukuveliswa kweebhotile zeplastiki ezine-bisphenol A;iibhotile zeplastiki ezisetyenziswa kwiziselo ezinxilisayo neziselo (ezifana neziselo zesoda) nazo zigalela ngokulula i-bisphenol A, kunye nebhiya kunye ne-bisphenol A ziyasebenzisana ukwenza izinto eziyityhefu.Isetyenziswa kwinkqubo yokuveliswa kotywala Emva kwezikhongozeli zeplastiki kunye nemibhobho yeplastiki, iiplastiki eziyingozi zabhaqwa kwiwayini.
I-Antimony kwi-catalyst yeebhotile zamanzi zeplastiki ziya kubola kumanzi omxholo.Ixesha elide lokugcinwa kweebhotile zamanzi zeplastiki, i-antimony eninzi ikhutshwe, kunye nemvula ye-antimony kwisiqingatha sonyaka.Isixa siya kuphinda kabini, kwaye uphando lubonise ukuba i-antimony iyingozi kumzimba womntu.
Ukusebenzisa i-polyester (PET) yamanzi ebhotile, ekuhambeni kwexesha, kunokubangela ukuba i-carcinogens efana ne-DEHA (i-adipic acid diester okanye iguqulelwe njenge-ethylhexylamine) iyancipha.Ke ngoko, i-US Food and Drug Administration (FDA) imisele ukuba ukupakishwa kweglasi kukhuselekile.)
Kufuneka kuqatshelwe ukuba iglasi ye-soda-lime ayinamanzi, i-acid-resistant kunye ne-alkali-resistant.Ngoko ke, iibhotile zeglasi ze-soda-lime eziqulethe izisombululo ze-alkali ziya kuchithwa.Ngokomzekelo, ezinye iinkampani zisebenzisa iglasi ye-soda-lime njengebhotile yenaliti ye-sodium bicarbonate ukunciphisa iindleko.Akufanelekanga ukuvelisa iiflakes, kwaye ukupakishwa kwamachiza kufuneka kusebenzise iglasi yezokwelapha ezifanelekileyo ngokuhambelana nemigangatho yelizwe okanye imimiselo ye-pharmacopoeia.
Ixesha lokuposa: Dec-12-2019