ʻO nā ʻeke plastik a mākou e hoʻohana maʻamau nei i kēlā me kēia lā ua hoʻokau i nā pilikia koʻikoʻi a me nā mea kaumaha i ke kaiapuni.
Inā makemake ʻoe e pani i nā ʻeke plastik maʻamau ma ke koho ʻana i nā ʻeke plastik "degradable", e kōkua nā manaʻo e pili ana i nā ʻeke plastik degradable iā ʻoe e hana i ke koho kaiapuni kūpono!
Ua ʻike paha ʻoe aia kekahi mau "ʻeke plastik degradable" ma ka mākeke.Manaʻo paha ʻoe ʻo nā ʻeke plastik me ka huaʻōlelo "degradable" pono e hoʻohaʻahaʻa ʻia a pili i ke kaiapuni.Eia naʻe, ʻaʻole kēia ka hihia.ʻO ka mea mua, inā hiki i nā ʻeke plastik ke lilo i mau mea haumia ʻole e like me ka wai a me ke kalapona kalapona, hiki iā lākou ke lilo i mau ʻeke pili i ke kaiapuni.Nui nā ʻano ʻeke plastik "aloha kaiapuni" ma ka mākeke: ʻeke plastik hiki ke hoʻopau ʻia, ʻeke biodegradable, a me ka ʻeke compostable.
ʻO ka polymer i loko o ka ʻeke plastik ua pōʻino ʻokoʻa a i ʻole ma muli o ka hoʻoheheʻe ʻana o ultraviolet, ka hoʻoheheʻe ʻana, a me ka corrosion biological.ʻO ia ke ʻano o ka hoʻololi ʻana i nā waiwai e like me ka mae ʻana, ka haki ʻana o ka ʻili, a me ka ʻāpana.ʻO ke kaʻina hana biochemical kahi i hoʻololi piha ʻia ai ka mea olaola i loko o nā ʻeke plastik i loko o ka wai, carbon dioxide/methane, ikehu a me nā biomass hou ma lalo o ka hana a nā microorganisms (bacteria a me nā fungi).Hiki ke hoʻoheheʻe ʻia nā ʻeke plastik ma lalo o nā kūlana kūikawā a me ka nui o ka manawa o nā ʻāina wela, a koi pinepine i ka composting ʻoihana e loaʻa ai ka maikaʻi o ka maikaʻi.
Mai nā hiʻohiʻona ʻekolu i luna, ʻo nā ʻeke biodegradable a compostable wale nō ka "pale kaiapuni" maoli!
ʻO ke ʻano mua o nā ʻeke plastik "degradable" e pili pono ana i ka "photodegradation" a i ʻole ka "thermal oxygen degradation. ʻO ka hopena, hiki iā lākou ke hoʻohuli i nā ʻeke plastik i mau ʻāpana liʻiliʻi liʻiliʻi, ʻaʻole kūpono i ka hana hou ʻana a me ka hoʻomaʻemaʻe ʻana i nā plastics, akā ʻāpana pū kekahi. ʻO ke komo ʻana i ke kaiapuni e hoʻonui i nā pilikia haumia. No laila, ʻaʻole maikaʻi kēia ʻeke plastik "degradable" i ke kaiapuni, a ua nui hoʻi ke kūʻē i ka ʻoihana.
ʻO nā plastik hiki ke paʻi kiʻi: nā plastic i hoʻohaʻahaʻa ʻia e ka mālamalama maoli;ʻO ka mālamalama no ka hoʻokalakala ultraviolet, hiki ke hana i ka hapa a i ʻole ka pōʻino piha i ka polymer.
ʻO nā plastics hoʻohaʻahaʻa wela wela: nā plastics i hoʻohaʻahaʻa ʻia e ka wela a/a i ʻole ka oxidation;ʻO ka hoʻohaʻahaʻa ʻana i ka thermal-oxidative no ka oxidative corrosion, hiki ke hana i ka hapa a i ʻole ka pōʻino piha i ka polymer.No laila, e aʻo e hoʻokaʻawale i nā ʻeke plastik degradable ʻē aʻe inā pilikia!
Pono e kaha ʻia nā ʻeke plastik i hana mua ʻia e like me nā kūlana a me nā mea i hoʻohana ʻia.Ma waena o lākou: hōʻike ka hōʻailona hana hou e hiki ke hana hou a hoʻohana hou ʻia ka ʻeke plastik;ʻO 04 i ka hōʻailona hana hou he hōʻailona kikohoʻe kūikawā no ka polyethylene haʻahaʻa haʻahaʻa (LDPE);ma lalo o ka recycling mark> PE-LD< hōʻike i ka mea hana o nā ʻeke plastik;"GB/T 21661-2008" ma ka ʻaoʻao ʻākau o ka huaʻōlelo "plastic shopping bag" ʻo ia ka maʻamau hana i hoʻokō ʻia e nā ʻeke kūʻai plastik.
No laila, i ke kūʻai ʻana i kahi ʻeke biodegradable a i ʻole compostable, pono ʻoe e nānā mua inā aia kahi hōʻailona ʻeke plastik e koi ʻia e ka ʻāina ma lalo o ka ʻeke.A laila, e hoʻokolokolo e like me nā mea hana ʻeke plastik ma lalo o ka lepili palekana kaiapuni.ʻO nā mea ʻeke biodegradable a i ʻole compostable maʻamau i hoʻohana ʻia he PLA, PBAT, etc.
E hoʻohana i ka ʻeke plastik i hoʻohana ʻia e like me ka hiki a e hoʻāʻo e hoʻohana e like me ka hiki ma mua o ka haʻalele ʻana!
Ka manawa hoʻouna: Sep-13-2022
