Me ka hoʻomohala ʻana i ka hoʻokele waiwai a me ka hoʻomaikaʻi ʻana i nā kūlana ola o ka poʻe, ke piʻi nei ka noi no nā huahana plastic i kēlā me kēia lā, a ʻo ka "pollution keʻokeʻo" i lawe ʻia e ka plastic e lilo i mea koʻikoʻi.No laila, lilo ka noiʻi a me ka hoʻomohala ʻana i nā plastic degradable hou i mea nui e mālama ai i nā pilikia kaiapuni.Hiki ke hoʻohaʻahaʻa i nā plastic polymer ma lalo o nā kūlana he nui, a hiki ke hoʻohaʻahaʻa i ka wela ma lalo o ka hana o ka wela.Hiki ke hoʻohaʻahaʻa i ka mīkini ma lalo o ka hana a ka ikaika mechanical, ka hoʻohaʻahaʻa oxidative ma lalo o ka hana o ka oxygen, a me ka hoʻohaʻahaʻa biochemical ma lalo o ka hana a nā mea kemika.ʻO nā plastic degradable e pili ana i nā plastics i hoʻohaʻahaʻa maʻalahi ʻia i loko o ke kaiapuni kūlohelohe ma o ka hoʻohui ʻana i kekahi mau mea hoʻohui (e like me ka starch, starch i hoʻololi ʻia a i ʻole cellulose, photosensitizers, biodegraders, etc.) i ke kaʻina hana.
E like me kā lākou hana hoʻohaʻahaʻa, hiki ke hoʻokaʻawale ʻia nā plastic biodegradable i nā plastic photodegradable, nā plastic biodegradable, nā plastic photobiodegradable a me nā plastics degradable chemically.
Ke hoʻopau ʻia nā kaulahao mole o nā plastic photodegradable e nā ʻano photochemical, nalowale ka plastic i kona ikaika kino a me nā embrittlements, a laila hele i ke ʻano.
ʻO ka ʻinoʻino o ka palena e lilo i pauka, e komo i ka lepo a komo hou i ka pōʻai olaola ma lalo o ka hana a nā microorganisms.
Hiki ke hoʻokaʻawale ʻia nā plastic biodegradable i nā plastic biodegradable a me nā plastic biodegradable e like me kā lākou hana hoʻohaʻahaʻa a me ke ʻano luku.I kēia manawa, ʻo nā plastic starch a me nā plastic polyester ka mea i aʻo ʻia a hoʻohana ʻia.
ʻOi aku ka maikaʻi o ka plastic starch ma muli o kāna mea hana maʻalahi a me ke kumu kūʻai haʻahaʻa.ʻO nā plastic macromolecule biodegradable synthetic e pili ana i nā plastic biodegradable i haku ʻia e nā ʻano kemika.Hiki ke hoʻohui ʻia ma ke aʻo ʻana i ke ʻano like me ka polymer biodegradable plastics maoli a i ʻole nā plastics me nā hui hana hoʻohaʻahaʻa koʻikoʻi.
ʻO nā plastic degradable biodestructive, i ʻike ʻia he plastics collapseable, he ʻōnaehana hui o nā polymers biodegradable a me nā plastics maʻamau, e like me ka starch a me ka polyolefin.Ua hui pū ʻia lākou ma kekahi ʻano, a ʻaʻole i pau ka hoʻohaʻahaʻa ʻana i ke kaiapuni kūlohelohe, a hiki ke kumu i ka pollution lua.I loko o nā polymers biodegradable, hiki i ka hoʻohui ʻana o nā photosensitizers ke hana i nā polymers i hiki ke photodegradable a me ka biodegradable.
Hiki i nā mea polymer Photobiodegradable ma lalo o kekahi mau kūlana ke hoʻomalu pono i ka helu degradation, e like me ka starch i hoʻohui ʻia i ka photodegradable polymer material PE ma hope o ka hoʻohaʻahaʻa ʻana, e hana i ka porous PE, hoʻonui nui ʻia ka ʻili kiko, me ka oxygen, māmā, hiki ke hoʻopili i ka wai i hoʻonui nui ʻia, PE degradation rate. mahuahua loa.
Ke hoʻohālikelike ʻia me nā plastics photodegradable, ua lilo nā plastic biodegradable i kumuhana wela i ka hoʻomohala ʻana i nā plastic biodegradable.No ka mea, ʻaʻole paʻakikī loa nā plastic biodegradable i ke kaiapuni, a ʻoi aku ka maʻalahi o ka hoʻohaʻahaʻa ʻana i nā molekala liʻiliʻi ma lalo o nā kūlana kūpono.Loaʻa iā ia nā mea maikaʻi o ka maikaʻi liʻiliʻi, ka hana maʻalahi, ka ikaika kiʻekiʻe a me ke kumukūʻai haʻahaʻa.Loaʻa i nā plastic biodegradable ka laulā o nā noi.Ma ʻAmelika Hui Pū ʻIa i hoʻohana nui ʻia i ka hana ʻana i nā ʻeke ʻōpala decomposing, nā ʻeke kūʻai;Ma ʻEulopa Komohana, hoʻohana ʻia nā plastic biodegradable i nā hue shampoo, ʻeke ʻōpala a me nā ʻeke kūʻai hoʻohana hoʻokahi.Hoʻohana nui ʻia nā plastic biodegradable ma nā wahi aʻe:
(1) Hoʻopili mea
(2) mulch mahiʻai
(3) Nā mea e pono ai i kēlā me kēia lā
(4) ʻO nā mea lapaʻau hiki ke hoʻokuʻu ʻia
(5) Iwi hana, ʻili ʻili, kui iwi ʻokiʻoki, ʻoki ʻoki
(6) Nā lole lole lole
(7) Ka mālama ʻana i ke one melemele a me ka hoʻolālā kūlanakauhale.
Ke hoʻohana ʻia nā plastic biodegradable i ka bioengineering a me nā mea polymer degradable medical, ʻaʻole hiki ke hoʻohālikelike ʻia ko lākou mau hiʻohiʻona o ka biodegradation me nā plastic photodegradable root.Hiki i nā mea molekala haʻahaʻa hoʻohaʻahaʻa ke komo pololei i ka metabolism o nā mea ola, a loaʻa kahi ākea o nā manaʻo noi i ka moʻomeheu kiko, nā lāʻau hoʻokuʻu hoʻokuʻu ʻia, a me nā mea implant kūloko.
Ka manawa hoʻouna: Nov-17-2022