ʻO ka wehewehe ʻana o nā plastic biodegradable, ʻo ia ke kuhikuhi ʻana i ke ʻano, e like me ka lepo, ke one, ka wai wai, ka wai wai, kekahi mau kūlana e like me ka composting a me nā kūlana anaerobic digestion, ka hoʻohaʻahaʻa ʻia e ka hana microbial o ke ʻano o ke ʻano, a ma hope. decomposed i carbon dioxide (CO2) a me/aiʻole methane (CH4), ka wai (H2O) a me ka mineralization o ka mea i loko o ka paʻakai inorganic, a me ka biomass hou (e like me ke kino o nā microorganisms, etc.) o ka plastic.
Ka hoʻohālikelike ʻana o kekahi mau plastic biodegradable maʻamau
ʻO ka huahana a me ka hāʻawi ʻana i nā plastic biodegradable
Wahi a ka ʻikepili hou loa i hoʻokuʻu ʻia e ka European Bioplastics Association i Kepakemapa 2019, ʻo Sepatemaba 2019, ʻo ka mana o ka honua holoʻokoʻa o nā plastic biodegradable.2144,000 tona;
ʻO ka PLA (polylactic acid).628,000 tona, helu helu no29.3%;
ʻO ka PBAT (polyadipic acid/butylene terephthalate).606,800 tona, helu helu no28.3%;
ʻO ka plastic degradable ma muli o ka starch96.27 tona, helu helu no44.9%o ka hiki honua biodegradable plastic.
Ka hāʻawi honua ʻana i ka hiki i nā plastics biodegradable i 2019
(Uni: %)
Ke koi nei i lalo o ka honua no nā plastic biodegradable i 2019
(Uni: %)
Kūlana biodegradable
ʻO ka hoʻohaʻahaʻa lepo
Hiki ke hoʻohaʻahaʻa ʻia ka PBAT, PHA, PCL a me PBS ma hope o 5 mahina.
He lohi ka emi ʻana o nā mea PLA, 0.23% wale nō i ka makahiki.
Hiki ke hoʻohaʻahaʻa loa ʻia ka PLA a me ka PKAT ma kahi o ka hapalua makahiki ma hope o ka hui ʻana.
ʻO ka hoʻohaʻahaʻa wai
Hiki ke hoʻohaʻahaʻa loa ʻia ka PHA a me ka PKAT i nā lā 30-60 ma lalo o ke kūlana wai kai simulated o 25 ℃ ± 3 ℃.
Ka manawa hoʻouna: 02-12-22