Hiki i ka PLA Biodegradable?
•ʻO ka polylactic acid, ka mea i kapa ʻia ʻo PLA, ua puni ia no nā makahiki he nui. Eia nō naʻe, ua komo hou nā mea hana nui o PLA i ka mākeke ma hope o ka loaʻa ʻana o ke kālā mai nā hui nui e makemake e hoʻololi i nā plastic synthetic. No laila, hiki ke biodegradable ka PLA?
•ʻOiai ʻaʻole maʻalahi ka pane, ua hoʻoholo mākou e hāʻawi i kahi wehewehe a paipai i ka heluhelu hou ʻana i ka poʻe hoihoi. ʻAʻole hiki ke biodegradable ka PLA, akā hiki ke hoʻohaʻahaʻa. ʻAʻole loaʻa nā enzymes hiki ke wāwahi i ka PLA ma ke kaiapuni. ʻO ka Proteinase K kahi enzyme e hoʻoheheʻe i ka PLA ma o ka hydrolysis. Ua ʻimi nā mea noiʻi e like me Williams i ka makahiki 1981 a me Tsuji a me Miyauchi i ka makahiki 2001 i ka pilikia inā he biodegradable ka PLA. Kūkākūkā ʻia kā lākou hopena ma ka puke Biomaterials Science: An Introduction to Medical Materials a hōʻike ʻia ma kahi hālāwai o ka European Biomaterials Society. Wahi a kēia mau kumu, hoʻomalu nui ʻia ka PLA e ka hydrolysis, kūʻokoʻa i nā mea ola. ʻOiai manaʻo paha ka poʻe he biodegradable ka PLA, he mea nui e hoʻomaopopo i kēia.
•ʻO ka ʻoiaʻiʻo, ʻo ka hydrolysis o PLA e ka proteinase K ʻaʻole ia he mea nui e kūkākūkā hou ʻia ma ka ʻepekema biomaterial. Manaʻo mākou e wehewehe kēia i nā pilikia e pili ana i ka biodegradability PLA a e hoʻomau mākou i kā mākou hoʻoikaika ʻana e hāʻawi i nā hopena maikaʻi loa no kāu pono kūlohelohe a me ka biodegradable plastic.
In hopena:
He plastic biodegradable ka PLA i hoʻohana nui ʻia i nā mea o kēlā me kēia lā e like me nā ʻeke a me nā kīʻaha. Eia nō naʻe, hiki ke hoʻohaʻahaʻa wale ia i loko o ka ʻoihana composting a i ʻole ka anaerobic digestion kaiapuni, me ka hoʻohaʻahaʻa ʻana i nā kaiapuni kūlohelohe maʻamau. Ua hōʻoia nā haʻawina e hoʻohaʻahaʻa iki ana ka PLA i ke kai.
Ka manawa hoʻouna: Nov-01-2023
