Galasi imakhala ndi kukhazikika kwamphamvu kwamankhwala.Monga chidebe cha chakudya ndi galasi chakumwa, zomwe zili sizidzaipitsidwa.Monga chokongoletsera kapena zofunikira za tsiku ndi tsiku, thanzi la wogwiritsa ntchito silidzawonongeka.
(M'zaka zaposachedwa, zapezeka kuti bisphenol A imawomberedwa pamene mabotolo apulasitiki amatenthedwa pa 110 ° C, ndipo bisphenol A (BPA) imasokoneza kutulutsa kwaumunthu ndipo imakhudza kwambiri makanda.
Mu October 2008, Canada inaletsa kugulitsa mabotolo a bisphenol A.Mu March 2009, EU inaletsa kupanga mabotolo apulasitiki okhala ndi bisphenol A;Mabotolo apulasitiki omwe amagwiritsidwa ntchito muzakumwa zoledzeretsa (monga zakumwa za koloko) amatsitsanso bisphenol A mosavuta, ndipo mowa ndi bisphenol A zimalumikizana kupanga zinthu zapoizoni.Amagwiritsidwa ntchito popanga zakumwa zoledzeretsa Pambuyo potengera pulasitiki ndi mapaipi apulasitiki, mapulasitiki owopsa adapezeka mu vinyo.
Antimony mu chothandizira cha mabotolo amadzi apulasitiki adzawola m'madzi okhutira.Kutalikirapo nthawi yosungiramo mabotolo amadzi apulasitiki, antimony imatulutsidwa, ndi mpweya wa antimoni mu theka la chaka.Ndalamayi idzawirikiza kawiri, ndipo kafukufuku wasonyeza kuti antimony ndi yovulaza thupi la munthu.
Pogwiritsa ntchito madzi a m'mabotolo a polyester (PET), pakapita nthawi, amatha kuyambitsa ma carcinogens monga DEHA (adipic acid diester kapena kumasuliridwa ngati ethylhexylamine) kuti ayambe kugwa.Chifukwa chake, US Food and Drug Administration (FDA) yatsimikiza kuti kuyika magalasi ndikotetezeka.)
Tiyenera kuzindikira kuti galasi la soda-laimu ndi lopanda madzi, losagwirizana ndi asidi komanso alkali.Choncho, mabotolo a galasi la soda-laimu omwe ali ndi mankhwala a alkali adzaphwanyidwa.Mwachitsanzo, makampani ena amagwiritsa ntchito galasi la soda ngati botolo la jakisoni wa sodium bicarbonate kuti achepetse ndalama.Ndizosayenera kutulutsa ma flakes, ndipo zopangira mankhwala ziyenera kugwiritsa ntchito galasi lachipatala loyenerera malinga ndi miyezo ya dziko kapena malamulo a pharmacopoeia.
Nthawi yotumiza: Dec-12-2019