Hoʻopilikia ʻia e ka honua "Paʻa Paʻa"a"Pāpaʻi Paʻa” nā kānāwai, ua hoʻomaka kekahi mau wahi o ka honua e hoʻokau i nā kaohi plastik nui a ua hoʻokō mālie ʻia nā kulekele hoʻopaʻa ʻia i loko. Ke hoʻomau nei ka noi no nā plastic degradable piha. ʻO ka plastic degradable piha ʻo PLA ka maikaʻi maikaʻi loa i ka hoʻohālikelike ʻia me nā plastic degradable ʻē aʻe, a ua lilo i mea kaulana.

He aha ka mea PLA?

ʻO ka waika polylactic PLA, i ʻike ʻia he polylactide, e pili ana i kahi polyester polymer i loaʻa ma ka polymerizing lactic acid ma ke ʻano he kumu kumu. Hana ʻia ia mai ka starch i manaʻo ʻia e nā kumuwaiwai mea kanu hou (e like me ke kulina, ka ʻoki, etc.). He ʻano hou ia o nā mea biodegradable hou.

No ke aha he 100% biodegradable ka mea PLA?

ʻO ka PLA kahi mea kanu mea kanu hou, nona ka biodegradability maikaʻi a hiki ke hoʻohaʻahaʻa ʻia e nā microorganism ma ke ʻano ma hope o ka hoʻohana ʻana.
ʻO ka polylactic acid he aliphatic hydroxy acid polymer, he mea paʻakikī i loko o ke aniani kūlana ma ka lumi wela, a ua hoʻololi ʻia i carbon dioxide, CH4 a me ka wai ma lalo o ka decomposition o nā microorganisms. He mea maʻamau linear piha biodegradable mea.

He aha nā pōmaikaʻi o ka hoʻohana ʻana i nā mea PLA?

Hiki ke 100% decomposed ka papa ʻaina PLA i carbon dioxide a me ka wai ma ke ʻano, e hoʻonā i ka pilikia o ka haumia keʻokeʻo mai ke aʻa, e pale ana i ke kaiapuni a loaʻa i ka hoʻomohala hoʻomau.

I kēia manawa, hana ʻia nā pahu ʻaina maʻamau e like me nā pahu lawe, nā pahu hale ʻaina, a me nā pahu meaʻai hale kūʻai nui i nā mea waiwai i hoʻokumu ʻia i ka ʻaila, a ʻo ke kaʻina hana e loaʻa i nā mea hoʻohui, e hiki ai ke hoʻoulu i ka maʻi kanesa i ke kino kanaka. Maikaʻi ke koho ʻana i nā mea PLA no kou olakino.

ʻO ke kūlana kaiapuni wikiwiki a me nā kulekele: Wahi a nā helu helu piha ʻole, hōʻike ʻia ka piʻi ʻana o ka carbon dioxide o ka honua i 60 ° C i 2030. He ʻikepili weliweli kēia. Ke koi ikaika nei ka World Environmental Protection Organization i kona mau lālā e hoʻolohe i ke kaiapuni. No laila, he ʻano hiki ʻole ke hoʻololi i nā plastic disposable me ka polylactic acid hiki ke hoʻohana hou ʻia.

He kūpono maikaʻi ka PLA, degradability, mechanical properties a me nā waiwai kino. He kūpono ia no nā ʻano hana like ʻole e like me ka blow molding a me ka thermoplastic. He maʻalahi ke hana a hoʻohana nui ʻia. Ke hana nei kā mākou hale hana i nā hale, e like me ka papaʻaina, nā kīʻaha, nā ʻōpala, nā pahu, nā kīʻaha, nā pahu ʻaina awakea, a me nā mea ʻē aʻe.