He kiʻekiʻe kemika ko ke aniani.Ma ke ʻano he ipu no ke aniani meaʻai a me nā mea inu, ʻaʻole e haumia ka ʻike.Ma ke ʻano he mea hoʻonani a i ʻole nā mea e pono ai i kēlā me kēia lā, ʻaʻole e pōʻino ke olakino o ka mea hoʻohana.
(I nā makahiki i hala iho nei, ua ʻike ʻia ʻo ka bisphenol A e hoʻoheheʻe ʻia ke hoʻomehana ʻia nā hue plastik ma 110 ° C, a ʻo ka bisphenol A (BPA) e hoʻopilikia i nā huna huna kanaka a loaʻa ka hopena koʻikoʻi i nā pēpē.
I ʻOkakopa 2008, ua pāpā ʻo Kanada i ke kūʻai ʻana i nā hue bisphenol A.I Malaki 2009, ua pāpā ka EU i ka hana ʻana i nā ʻōmole plastik i loaʻa ka bisphenol A;ʻO nā ʻōmole plastik i hoʻohana ʻia i nā mea inu ʻawaʻawa a me nā mea inu (e like me nā mea inu ʻawaʻawa) hiki ke hoʻokahe maʻalahi i ka bisphenol A, a hui pū ka pia a me ka bisphenol A e hana i nā mea ʻawaʻawa.Hoʻohana ʻia ia i ke kaʻina hana o ka waiʻona Ma hope o nā ipu plastik a me nā paipu plastik, ʻike ʻia nā plasticizers ʻino i loko o ka waina.
ʻO Antimony i loko o ka catalyst o nā ʻōmole wai plastik e decompose i loko o ka wai maʻamau.ʻOi aku ka lōʻihi o ka mālama ʻana i nā hue wai plastik, ʻoi aku ka nui o ka antimony i hoʻokuʻu ʻia, a me ka ua o ka antimony i ka hapalua makahiki.E pālua ka nui, a ua hōʻike ʻia ka noiʻi he mea ʻino ka antimony i ke kino o ke kanaka.
Me ka hoʻohana ʻana i ka wai ʻōmole polyester (PET), i ka wā lōʻihi, hiki iā ia ke hoʻoheheʻe i nā mea make e like me DEHA (adipic acid diester a i unuhi ʻia ʻo ethylhexylamine).No laila, ua hoʻoholo ka US Food and Drug Administration (FDA) e palekana ka pahu aniani.)
Pono e hoʻomaopopo ʻia ʻo ke aniani soda-lime he kūpaʻa wai, kūpaʻa ka wai a me ka pale alkali.No ka laʻana, hoʻohana kekahi mau hui i ke aniani soda-lime ma ke ʻano he ʻōmole injection sodium bicarbonate e hōʻemi i nā kumukūʻai.ʻAʻole kūpono i ka hana ʻana i nā flakes, a pono e hoʻohana ka ʻōpala lāʻau lapaʻau i ke aniani lapaʻau kūpono e like me nā kūlana aupuni a i ʻole nā lula pharmacopoeia.
Ka manawa hoʻouna: Dec-12-2019