Palekana
Hoʻohana nui ʻia ka PET -meaʻai i ka ʻeke meaʻai a me ka mea inu ma muli o kona palekana a paʻa. ʻAʻole ia e hoʻokuʻu i nā mea ʻino a hoʻokō i nā kūlana palekana meaʻai honua, e hāʻawi ana i ka maluhia o ka noʻonoʻo i ka wā e hoʻohana ai. Eia naʻe, he mea nui e hoʻomaopopo he hiki i ka PET ke hoʻokuʻu i kekahi mau mea ʻino, e like me DEHP, ma nā wela kiʻekiʻe. No laila, i ka wā e hoʻohana ai i nā ipu PET, pono e pale i nā kaiapuni wela kiʻekiʻe e pale ai i ka hoʻokuʻu ʻia ʻana o nā mea ʻino.
Loaʻa ka ʻai-papa PP ma nā wahi a pau i ke ola o kēlā me kēia lā, e like me ka hale kūʻai hale kūʻai meaʻai a me ka microwave-pahu meaʻai palekana. No ke aha i kaulana ai? ʻO ka mea mua, ʻaʻole-ʻawaʻawa kēia mea, ʻaʻala ʻole a ʻono ʻole, no laila palekana loa ke hoʻohana. Eia kekahi, loaʻa iā ia ka wela maikaʻi loa; hiki ke hoʻoheheʻe ʻia me ka pilikia ʻole, ʻaʻole like me kekahi mau plastics e hoʻololi a hoʻokuʻu paha i nā mea ʻino ke hoʻomehana ʻia. Eia kekahi, he kūpaʻa kemika maikaʻi loa ia a ʻaʻole maʻalahi i ka hana me nā mea ʻē aʻe ma lalo o ka hoʻohana maʻamau.
ʻO ka mea nui aku, ʻaʻole pono ka mea PP i ka hoʻohui ʻana i nā mea ʻino i ka wā o ka hana ʻana. Ma lalo o nā kūlana wela kiʻekiʻe, ʻaʻole ia e decompose i loko o ka bisphenol A, kahi mea kemika e pōʻino i ke kino o ke kanaka. ʻO ia ka mea ʻoi aku ka palekana o ka papaʻaina a i ʻole ka ʻeke i hana ʻia me ka mea PP a kūpono loa no ka mālama ʻana i ka meaʻai.
māliko
ʻO ka meaʻai -mea ʻai PET he mālohi loa, e ʻae iā ʻoe e ʻike i ka meaʻai i loko me ka maka, me kona ʻano a me kona maikaʻi i hōʻike pono ʻia. No laila, kūpono loa ia no ka hoʻohana ʻana i loko o ka ʻeke e pono ai e hōʻike i ka meaʻai, e like me nā ʻōmole inu a mākou e inu pinepine ai, a me nā ipu meaʻai e paʻa ai nā keke a me nā lole. Hana ʻia ka hapa nui o kēia mau pūʻolo me PET. No ke aha e hoʻohana ai? No ka mea makemake nā ʻoihana e hōʻike i nā mea maikaʻi loa o kā lākou huahana i nā mea kūʻai aku i mea e huki ai iā lākou e kūʻai. Eia kekahi, ʻaʻole wale ka maʻemaʻe a me ka maʻemaʻe o kēia puʻupuʻu, akā hiki iā ia ke pale aku i ka meaʻai i kekahi ʻano, pale ʻia mai ka pulu a i ʻole deformed, a me ka hōʻoia ʻana e hiki i ka meaʻai ke hiki i nā mea kūʻai aku me ke kūlana maikaʻi.
He ha'aha'a ha'aha'a ka 'ōlinolino o ka -papa mea'ai, he 'ano -māmā. ʻOiai ka haʻahaʻa haʻahaʻa o ka māmā, ʻo kāna mau hoʻohana ʻana he ākea-. E lawe i nā ipu yogurt i laʻana. ʻO ka semi-manaʻo PP e hiki ai i ka poʻe ke ʻike pohihihi i ke ʻano mānoanoa o ka yogurt, me ka mālama ʻana i ka huahana i mea pohihihi. ʻO kekahi mea kūʻai kūʻai maʻamau ʻo ia ka pā, me nā pā ʻiʻo hou he kumu hoʻohālike. Hana ʻia me ka mea PP, paʻa kēia mau pā, hiki ke hana, a ʻo ko lākou ʻano semi-māmā e nānā aku iā lākou maʻemaʻe a maʻemaʻe. ʻO ka hoʻohana ʻana i ka PP no nā pahu meaʻai a me nā pā ʻaʻole e hoʻokō wale i kēia mau pono akā e hōʻoiaʻiʻo pū i ka palekana o ka meaʻai.
Kūleʻa wela
'O ka pale wela o ka mea'ai- PET kahi hi'ona nui. ʻOiai ʻaʻole hiki ke pale i nā wela kiʻekiʻe. Ke piʻi ka mahana i 70-80 degere, e hoʻololi ka ʻili o ka pahu PET a nalowale kona ʻano kumu. No laila, ʻaʻole kūpono ka PET kiʻekiʻe -meaʻai no nā noi e koi ana i ka -maha wela a i ʻole ka wela. Inā hoʻokomo ʻia ka wai wela i loko o ka pāpaʻi PET, e maʻalahi ia e hoʻololi, e alakaʻi ana i ka pōʻino a i ʻole ka hoʻohana ʻole ʻana i ka ʻeke. No laila, i ke koho ʻana i nā mea hoʻopihapiha, pono e noʻonoʻo pono ʻia nā koi wela i ka wā o ka hoʻomaʻamaʻa ʻana i ka meaʻai e pale aku i nā pilikia i hoʻokumu ʻia e nā mea hoʻopihapiha ʻaʻole wela.
Loaʻa i ka ʻai-papa PP ka wela maikaʻi loa, e ʻae ana i ka mahana ma waena o 110-120 degere. ʻO ia wale nō ka plastic i hiki ke hoʻomaʻamaʻa pololei ʻia i ka umu microwave, e hana pono ai. Inā pono e hoʻomaʻemaʻe ʻia ka meaʻai ma nā wela kiʻekiʻe a i ʻole ka wela ma mua o ka hoʻopaʻa ʻana, kūpono ka mea hoʻopili PP. Nui nā pahu mālama meaʻai, e like me nā mea a mākou e hoʻohana pinepine ai no ka mālama ʻana i nā meaʻai, a me nā pahu ʻai -ʻai i kūʻai ʻia ma nā hale kūʻai nui, ua hana ʻia me ka mea PP. He mea maʻalahi a palekana hoʻi e hoʻohana iā ia e wela i ka meaʻai i loko o ka microwave, me ka hopohopo ʻole e hoʻoheheʻe a hoʻokuʻu paha i nā mea ʻino. He mea maʻalahi i ke ola o kēlā me kēia lā.
Ke kūʻē kemika
Hiki ke ʻae maikaʻi ka PET -ʻai meaʻai i nā ʻakika a me ka alkali a hiki ke hoʻokō i nā kaiapuni ʻakika a alkaline i ka meaʻai o kēlā me kēia lā. Eia nō naʻe, ʻaʻole ia e hana inā loaʻa iā ia nā mea hoʻoheheʻe ikaika a i ʻole nā mea hoʻoheheʻe organik. No ka laʻana, hiki i nā mea hoʻoheheʻe ikaika e like me ka bleach a me nā disinfectants, a me nā mea hoʻonaninani pena, hiki ke hoʻopōʻino i ka PET, e hoʻoheheʻe ʻia, deformed, a haki paha. No laila, i ka wā e hoʻopaʻa ai i ka meaʻai, ʻoi aku ka maikaʻi o ka pale ʻana i ka hoʻopili ʻana me kēia mau mea e hōʻoia i ka pono o ka ʻeke a me ka palekana o ka meaʻai.
Loaʻa ka paʻa kemika maikaʻi ʻo PP -meaʻai a ʻaʻole hoʻololi me ka hapa nui o nā kemika koe wale nō nā mea hoʻoheheʻe ikaika. He mea kaulana kēia mea i ka meaʻai a me nā ʻoihana ʻoihana. No nā pahu mālama meaʻai a me nā pahu ʻaina awakea palekana -micwawīwī, kūpono loa nā mea PP no ka mea e pale ana i ka ʻai ʻia e nā kemika. No kekahi ʻāpana kemika ʻoihana, inā ʻaʻole ikaika loa ka acidity a i ʻole alkalinity, hiki i ka mea PP ke pale aku. ʻO nā mea hoʻomaʻemaʻe a me ka hoʻomaʻemaʻe ʻana i ka huahana hiki ke pōmaikaʻi mai ka PP, e pale ana i nā hopena ma waena o nā kemika kūloko a me nā mea hoʻopili, e hōʻoia ana i ka paʻa o ka huahana. I ka pōkole, ʻoiai ʻaʻole ia e launa pū me nā mea hoʻoheheʻe ikaika, ʻo ka mea PP kahi koho maikaʻi no ka ʻeke e kūʻē i ka corrosion kemika.
Hana hana
Paʻakikī loa ka hana ʻana i ka PET -meaʻai. Pono e hoʻomaloʻo ʻia ma mua o ka hoʻoheheʻe ʻia ʻana. Inā ʻaʻole maloʻo loa, hiki ke ʻike maʻalahi nā kīnā i ka wā o ka hoʻoponopono ʻana, e like me ka poha ʻana a i ʻole ka haumia ma ka ʻili o ka huahana. Eia kekahi, paʻakikī ʻo PET i ka hana ʻana, a ʻoi aku ka paʻakikī o nā koi no nā mea hana a me nā kaʻina hana i ka wā hana. Ke alakaʻi pololei nei kēia i nā kumukūʻai hana kiʻekiʻe ma mua o kekahi mau mea plastic. No laila, ʻoi aku ka maʻamau o nā huahana PET. Eia nō naʻe, hoʻohana nui ʻia ia i ka hoʻopili ʻana e like me nā hue inu a me nā pahu mālama meaʻai, ma muli o kāna hana maikaʻi, kiʻekiʻe ʻokoʻa, hiki ke hōʻike pono i ka meaʻai, a me ka hiki ke hōʻoia i ka palekana o ka meaʻai.
He maikaʻi ka hana hoʻoponopono ʻana i ka -meaʻai, hiki ke hoʻololi maʻalahi i nā ʻano hana hana paʻakikī like ʻole, e like me ka hoʻoheheʻe ʻana, extrusion, a me ka hoʻoheheʻe ʻana. I ka hana ʻana, ʻaʻole koi ʻo PP i ka pae like o nā mea hana a me nā kaʻina hana e like me kekahi mau plastics, a ʻoi aku ka maʻalahi o ka hana ʻana. No laila, ʻoi aku ka haʻahaʻa o kāna kumukūʻai hana. ʻO ka hopena, kaulana loa ka ʻai-ka PP ma ka ʻoihana ʻeke; he nui nā mea o kēlā me kēia lā e like me nā pahu mālama meaʻai a me nā kīʻaha yogurt i hana ʻia me ka PP. Me kona kumu kūʻai haʻahaʻa a me ka maikaʻi maikaʻi, hiki iā ia ke hoʻokō pono i ka makemake o ka mākeke, no laila ʻaʻole ia he mea kupanaha no ka loaʻa ʻana o kahi wahi i ka ʻoihana meaʻai.
Nā Kūlana kūpono
ʻOi aku ka maikaʻi o ka PET -meaʻai no ka hōʻike ʻana i ke ʻano o ka meaʻai akā ʻaʻole makemake i nā wela kiʻekiʻe. ʻO kona ʻālohilohi kiʻekiʻe e hiki ai ke ʻike maopopo i ke ʻano a me ka maikaʻi o ka meaʻai, no laila kūpono ia no ka hoʻopili ʻana e like me nā hue inu a me nā ipu meaʻai māmā kahi e pono ai nā mea kūʻai aku e ʻike pololei i nā mea i loko. Eia naʻe, ʻaʻole kūpono kāna hana i nā mahana kiʻekiʻe; ʻano ʻano maʻamau ka ʻili ma 70-80 degere, no laila ʻaʻole kūpono ia no nā mea inu wela a me nā meaʻai. ʻAʻole kūpono ʻo PET inā makemake ʻia ka sterilization kiʻekiʻe a i ʻole ka wela.
ʻO ka meaʻai-ʻano PP he mea maʻalahi loa, kūpono loa no ka hoʻopili ʻana e pono ai ke pale aku i ka ʻino kemika a hoʻohana ʻia no nā meaʻai hau. No ka laʻana, ʻo ka nui o nā pahu meaʻai, nā pā, a me nā pahu palekana microwave -a mākou e ʻike mau nei, ua hana ʻia me ka mea PP. He kūpaʻa kemika maikaʻi loa ka PP; ʻAʻole ia e pane me ka hapa nui o nā kemika koe wale no nā mea hoʻomake ikaika, e palekana loa ia no ka mālama ʻana i nā meaʻai. Eia kekahi, pale ʻo PP i nā haʻahaʻa haʻahaʻa, no laila hiki ke mālama ʻia nā meaʻai maloʻo me ka ʻole o ka pilikia, ʻaʻole like me nā mea ʻē aʻe i hiki ke lilo i palupalu a deform paha. No ka hoʻomehana ʻana, hiki ke waiho pololei ʻia nā ipu PP i ka microwave, e hāʻawi ana i ka maʻalahi a me ka wikiwiki.
Palekana kaiapuni
ʻOiai ʻoi aku ka maikaʻi o ka hana kaiapuni -meaʻai, hiki ke hoʻohui ʻia kekahi mau mea hoʻohui, e like me nā catalysts a me nā antioxidants, i ka wā e hana ai. Hiki i kēia mau mea hoʻohui ke neʻe a lele i waho i ka wā -hoʻohana lōʻihi, no laila e pili ana i ka palekana o ka meaʻai. No ka laʻana, he mea ʻawaʻawa nā catalysts i hoʻohana ʻia i ka hopena polycondensation PET (e like me ka antimony trioxide) a me nā hopena o ka hopena (e like me ka acetaldehyde), e hōʻike ana i kahi pilikia o ka hoʻololi ʻana i nā mea make. No laila, i ke koho ʻana i ka PET ma ke ʻano he meaʻai meaʻai, pono ia e kāohi pono i ka nui o nā mea hoʻohui i hoʻohana ʻia a me nā palena neʻe e hōʻoia i ka hoʻokō ʻana i nā kūlana palekana meaʻai.
He mea maikaʻi loa ka PP papa meaʻai a ʻaʻole hoʻokuʻu i nā kinoea ʻino i ka wā e hoʻohana ai, no laila he liʻiliʻi loa kona hopena i ke olakino kanaka. He mea paʻa palekana palekana, a kūpono loa i ka ʻeke meaʻai. No ka laʻana, ʻo ka nui o nā pahu mālama meaʻai a me ka microwave -pahu ʻaina awakea palekana a mākou e hoʻohana mau ai, ua hana ʻia me ka mea PP. Ke hoʻohana ʻoe ia mea no ka mālama ʻana i ka meaʻai, inā ʻoe e hoʻoinu ai a hoʻomehana paha, ʻaʻole pono ʻoe e hopohopo no ka hoʻokuʻu ʻana i nā mea ʻino. Eia kekahi, maʻalahi ka hoʻolei ʻia ʻana o ka mea PP ma hope o ka hoʻolei ʻia ʻana, ʻaʻole ia e kau i ka ukana kaumaha ma ke kaiapuni e like me nā plastics ʻē aʻe. No laila, hoʻohana nui ʻia ʻo PP i ka ʻeke meaʻai a me nā mea e pono ai i kēlā me kēia lā, a manaʻo nui ka poʻe i kona hoʻohana ʻana.
hopena
Inā makemake ʻoe e hōʻike i ke ʻano a me ka maikaʻi o ka meaʻai me ka pale ʻana i nā wela kiʻekiʻe, ʻaʻole kūpono paha ka -meaʻai PET, no ka mea, hiki i ka PET ke hoʻololi ʻia i nā wela kiʻekiʻe. Manaʻo ʻia e koho i nā mea ʻē aʻe i kūpono i ka -kaiapuni wela. Eia nō naʻe, loaʻa i ka PET ke aniani kiʻekiʻe, e hopena i ka maikaʻi hōʻike maikaʻi loa.
Inā pono ʻoe e pale aku i ka ʻino a me ka ʻohi ʻana i nā meaʻai hau hau, he koho maikaʻi ka meaʻai-papa PP. He kūpaʻa kemika maikaʻi ka PP, haʻahaʻa -kūʻai wela, a hiki ke hoʻohana ʻia no ka hoʻomehana microwave, e hana pono ai.
Loaʻa i ka -meaʻai ka PET a me ka PP ko lākou mau hiʻohiʻona ponoʻī: He kiʻekiʻe ka māliko ʻana o ka PET akā ua kaupalena ka pale wela; He maikaʻi ka pale wela o ka PP a me ka paʻa kemika, akā haʻahaʻa haʻahaʻa haʻahaʻa. No laila, pono ke koho ʻia ma ke ʻano o ka noi kikoʻī a me nā koi e koho i ka mea kūpono loa.
