Bisphenol A (BPA) ndi mankhwala omwe amagwiritsidwa ntchito kwambiri popanga zinthu zapulasitiki, monga PC (polycarbonate) ndi ma epoxy resins. Komabe, pamene nkhawa za kuopsa kwa thanzi la BPA zawonjezeka, ena opanga zinthu zapulasitiki ayamba kufunafuna njira zina zopangira zinthu zopanda BPA. Nazi zina mwazinthu zapulasitiki zomwe nthawi zambiri zimatsatiridwa ngati BPA-free:
1. Tritan™:
Tritan™ ndi pulasitiki yapadera ya copolyester yomwe imagulitsidwa ngati BPA-free pomwe ikupereka kuwonekera kwambiri, kukana kutentha komanso kulimba. Zotsatira zake, zinthu za Tritan™ zimagwiritsidwa ntchito muzakudya zambiri, magalasi akumwa, ndi zinthu zina zolimba.
2. PP (polypropylene):
Polypropylene nthawi zambiri imadziwika kuti ndi pulasitiki yopanda BPA ndipo imagwiritsidwa ntchito kwambiri m'zakudya, mabokosi azakudya a microwave ndi zakudya zina.
3. HDPE (polyethylene yochuluka kwambiri) ndi LDPE (polyethylene yotsika kwambiri):
High-density polyethylene (HDPE) ndi polyethylene yotsika kwambiri (LDPE) nthawi zambiri imakhala yopanda BPA ndipo imagwiritsidwa ntchito popanga mafilimu oyika zakudya, matumba apulasitiki, ndi zina zambiri.
4. PET (polyethylene terephthalate):
Polyethylene terephthalate (PET) imatengedwanso kuti alibe BPA ndipo imagwiritsidwa ntchito popanga mabotolo omveka bwino a zakumwa ndi kulongedza zakudya.
Ndikofunika kuzindikira kuti ngakhale zida zapulasitikizi nthawi zambiri zimatsatiridwa ngati zopanda BPA, nthawi zina zowonjezera kapena mankhwala ena angakhalepo. Chifukwa chake, ngati mukukhudzidwa kwambiri ndi kupewa kukhudzana ndi BPA, ndibwino kuti muyang'ane zinthu zolembedwa ndi logo ya "BPA Yaulere" ndikuwunika zomwe zapakidwa kapena zida zotsatsira kuti mutsimikizire.
Nthawi yotumiza: Feb-03-2024