Na u ka sebelisa polasetiki ea microwave?

Litaba

• Mefuta ea polasetiki
• Na ho bolokehile ka polasetiki ea microwave?
• Litsela tse ling tsa ho fokotsa ho pepeseha ha hau ho BPA le phthalates
• Ntlha ea bohlokoa

Polasetiki ke thepa ea maiketsetso kapa ea seka-synthetic e tšoarellang, e bobebe ebile e tenyetseha.

Thepa ena e e lumella hore e etsoe lihlahisoa tse fapaneng, ho kenyeletsoa lisebelisoa tsa bongaka, likarolo tsa makoloi, le thepa ea lapeng joalo ka lijana tsa polokelo ea lijo, lisebelisoa tsa seno le lijana tse ling.

Leha ho le joalo, u kanna ua ipotsa hore na u ka boloka polasetiki ea microwave ka polokeho ho pheha lijo, ho futhumatsa seno seo u se ratang haholo, kapa ho futhumatsa masalla.

Sengoliloeng sena se hlalosa hore na u ka boloka polasetiki ea microwave ka polokeho.

Mefuta ea polasetiki

Polasetiki ke sesebelisoa se nang le liketane tse telele tsa lipolisi, tse nang le likarolo tse likete tse 'maloa tse phetoang tse bitsoang monomers ().

Ha li ntse li etsoa ka oli le khase ea tlhaho, li-plastiki le tsona li ka etsoa ka thepa e nchafatsoang joalo ka makhasi a lehong le lintara tsa k`hothone ().

Botlaaseng ba lihlahisoa tse ngata tsa polasetiki, u tla fumana triangolo e nchafatsoang hape e nang le palo - khoutu ea boitsebiso ba resin - ho tloha ho 1 ho isa ho 7. Palo e u joetsa mofuta oa polasetiki e entsoeng ka eona ().

Mefuta e supileng ea polasetiki le lihlahisoa tse hlahisitsoeng ho tsona li kenyelletsa (, 3):

1. Polyethylene terephthalate (PET kapa PETE): libotlolo tsa seno sa soda, botoro ea matokomane le linkho tsa mayonnaise le lijana tsa oli e phehang
2. Phahameng segokanyipalo nhua polyethylene (HDPE): sesepa sa sesepa le sesepa sa letsoho, jeke ea lebese, lijana tsa botoro le lipompo tsa phofo ea protheine
3. Polyvinyl chloride (PVC): liphaephe tsa lipeipi tsa metsi, likhoele tsa motlakase, likharetene tsa shaoara, lipeipi tsa bongaka le lihlahisoa tsa letlalo tsa maiketsetso
4. Tlaase segokanyipalo nhua polyethylene (LDPE): mekotla ea polasetiki, pepeta libotlolo le liphutheloana tsa lijo
5. Polypropylene (maq): likhalase tsa botlolo, lijana tsa yogurt, lijana tsa polokelo ea lijo, li-capsules tsa kofi tse sebeletsang motho a le mong, libotlolo tsa masea le libotlolo tse qhekellang
6. Polystyrene kapa Styrofoam (PS): ho paka matonkomane le lijana tse lahloang tsa lijo, lipoleiti le linoelo tse lahloang
7. Tse ling: e kenyelletsa polycarbonate, polylactide, acrylic, acrylonitrile butadiene, styrene, fiberglass le nylon

Lipolasetiki tse ling li na le li-additives ho fihlela litšobotsi tse lakatsehang tsa sehlahisoa se feliloeng (3).

Lisebelisoa tsena li kenyelletsa li-colorants, li-reinforcements le li-stabilizers.

Polasetiki e entsoe haholo-holo ka oli le khase ea tlhaho. Ho na le mefuta e 'maloa ea polasetiki e nang le lits'ebetso tse fapaneng.

Na ho bolokehile ka polasetiki ea microwave?

Kameho ea mantlha ka polasetiki ea microwaving ke hore e ka baka lisebelisoa - tse ling tsa tsona li leng kotsi - ho kena lijong le lino tsa hau.

Lik'hemik'hale tse ka sehloohong tse tšoenyang ke bisphenol A (BPA) le sehlopha sa lik'hemik'hale tse bitsoang phthalates, tseo ka bobeli li sebelisetsoang ho eketsa ho tenyetseha le ho tšoarella ha polasetiki.

Lik'hemik'hale tsena - haholo-holo BPA - li senya lihormone tsa 'mele oa hau mme li hokahane le botenya, lefu la tsoekere le kotsi ea ho ikatisa (,,,).

BPA e fumaneha haholo ka polasetiki ea polycarbonate (PC) (nomoro ea 7), e sebelisitsoeng haholo ho tloha lilemong tsa bo-1960 ho etsa lijana tsa polokelo ea lijo, likhalase tsa ho noa le libotlolo tsa masea ().

BPA e tsoang lipolasetiking tsena e ka kena lijong le lino tse ngata ha nako e ntse e tsamaea, hape le ha polasetiki e pepesehetse mochesong, joalo ka ha e le microwave (,,).

Leha ho le joalo, kajeno, baetsi ba bang ba tlhahiso ea lijo, polokelo le lihlahisoa ba sebelisitse polasetiki ea PC bakeng sa polasetiki e se nang BPA joalo ka PP.

Tsamaiso ea Lijo le Lithethefatsi (FDA) le eona e hanela tšebeliso ea lisebelisoa tse thehiloeng ho BPA ka lipaketeng tsa lebese la masea, linoelo tse sippy le libotlolo tsa masea ().

Leha ho le joalo, liphuputso li bonts'itse hore le li-plastiki tse se nang BPA li ka ntša lik'hemik'hale tse ling tse sitisang lihormone tse kang li-phthalates, kapa mekhoa e meng ea BPA joalo ka bisphenol S le F (BPS le BPF), lijong ha microwaved (,,,).

Ka hona, ka kakaretso ke mohopolo o motle ho qoba polasetiki ea microwave, ntle le haeba - ho latela FDA - setshelo se ngotsoe ka mokhoa o khethehileng hore se bolokehile bakeng sa ts'ebeliso ea microwave ().

Polasetiki ea microwave e ka ntša lik'hemik'hale tse kotsi joalo ka BPA le likarolo tsa hau lijong le lino tsa hau. Ka hona, o lokela ho qoba polasetiki ea microwave, ntle le haeba e ngotsoe ts'ebeliso ena e khethehileng.

Litsela tse ling tsa ho fokotsa ho pepeseha ha hau ho BPA le phthalates

Ha polasetiki ea microwaving e potlakisa ho lokolloa ha BPA le phthalates, ha se eona feela tsela eo lik'hemik'hale tsena li ka qetellang lijong kapa lino tsa hau.

Lintlha tse ling tse ka eketsang leaching ea lik'hemik'hale li kenyelletsa (,):

• ho beha lijo ka likotlolong tsa polasetiki tse ntseng li chesa
• ho hohla lik'hontheinara tse sebelisang thepa e khorofo, joalo ka boea ba tšepe, bo ka bakang ho ngoapa
• ho sebedisa ditshelo nako e telele
• ho pepesa lijana ka mochini o hlatsoang lijana khafetsa ka nako

E le molao o akaretsang, lijana tsa polasetiki tse petsohileng, tse pentiloeng, kapa tse bontšang matšoao a ho tsofala, li lokela ho nkeloa sebaka ke lijana tse ncha tsa polasetiki tse se nang BPA kapa lijana tse entsoeng ka khalase.

Kajeno, lijana tse ngata tsa polokelo ea lijo li entsoe ka PP e se nang BPA.

O ka khetholla lijana tse entsoeng ka PP ka ho sheba tlase bakeng sa setempe sa PP kapa lets'oao la ho pheta-pheta le nang le nomoro ea 5 bohareng.

Ho paka lijo ka polasetiki joalo ka polasetiki e khomarelang le eona e ka ba le BPA le phthalates ().

Kahoo, haeba o hloka ho koahela lijo tsa hau ka microwave, sebelisa pampiri ea boka, pampiri ea letlalo kapa thaole ea pampiri.

Lijana tsa polasetiki tse hahiloeng, tse senyehileng, kapa tse tsofetseng ka ho feteletseng, li beha kotsi e kholo ea leaching ea lik'hemik'hale.

Ntlha ea bohlokoa

Lipolasetiki ke lisebelisoa tse entsoeng haholo-holo ka oli kapa peteroleamo, 'me li na le likopo tse fapaneng.

Le ha lihlahisoa tse ngata tsa polokelo ea lijo, ho lokisa le ho fana li etsoa ka polasetiki, ho li boloka ka microwave ho ka potlakisa ho lokolloa ha lik'hemik'hale tse kotsi joalo ka BPA le phthalates.

Ka hona, ntle le haeba sehlahisoa sa polasetiki se nkuoa se sireletsehile ka microwave, qoba ho se boloka ka microwave, 'me u tlose lijana tsa polasetiki tse tsofetseng ka tse ncha.