Me ka hoʻoikaika ʻana o ka pollution "keʻokeʻo keʻokeʻo", ua hoʻokumu nā ʻāina a puni ka honua i kahi kauoha palena ʻoi aku ka paʻakikī, hiki ke hoʻopau i nā ʻeke plastik e noho i nā hale kūʻai nui a me nā hale kūʻai.E ʻike pono ʻia kēia mau ʻeke plastik degradable ʻaneʻane lākou a pau i kēia mau ʻano like ʻole.Pbat+PLA+ST.No laila he aha nā pōmaikaʻi o PBAT+PLA+ST?
Hoʻokahi: starch
Hoʻolaha nui ʻia ka starch i nā hua a i ʻole nā hua kanu, nā aʻa a i ʻole nā lau.Aia a hiki i nā haneli miliona mau toni o ka hana starch i kēlā me kēia makahiki.ʻO ia kekahi o nā kumuwaiwai hou a hiki ke hoʻoheheʻe ʻia.Loaʻa iā ia nā pōmaikaʻi o nā kumu nui a me nā kumukūʻai haʻahaʻa.Eia nō naʻe, no ka loaʻa ʻana o ka microcrystalline starch maoli a me ka hoʻolālā granular, ʻaʻohe ona hana hoʻoponopono thermoplastic, a pono e hoʻololi ʻia i starch armoplastic e loaʻa ai ka hana hana thermoplastic.
ʻElua: PBAT
ʻO ka polycolic acid/phenyl -dysic acid dysol (PBAT) kahi ʻano polyester degradable i huki nui ʻia.A hiki ke hoʻemi ʻia ka ductility i ka wai a me carbon dioxide i nā kūlana kūlohelohe.
Eia naʻe, kiʻekiʻe ke kumukūʻai o kēia mea, e kaupalena ana i kāna noi ma ka mākeke;no laila, ʻo kona kumu kūʻai haʻahaʻa a me ka starch degradable ke koho maikaʻi loa me PBAT.
ʻEkolu: PLA
ʻIke ʻia ka PLA (Polylactic Acid) he polystumin.ʻO ke kaʻina hana o ka polystumin he pollution, a hiki i ka huahana ke biodegradable, i ʻike ʻia ma ke ʻano.No laila, he mea polimer ʻōmaʻomaʻo kūpono.ʻekahi.
Eia nō naʻe, he nui nā hemahema i nā hana pono: PLA he ʻilihune ʻoʻoleʻa, nele i ka elasticity a me ka maʻalahi, ka ʻano paʻakikī a me ka brittleness, haʻahaʻa haʻahaʻa soluble ikaika, lohi loa i ka crystalline rate, etc.
Aia i loko o ka hale kemika o PLA ka nui o nā paʻa ester, kahi e pono ai ke hoʻomalu i ka hydrophilicity maikaʻi ʻole.Eia kekahi, ʻoi aku ka kiʻekiʻe o ke kumukūʻai o PLA, kahi e hoʻonui ai i ke kumukūʻai o nā mea maka a hoʻopaʻa i kāna hoʻolaha pāʻoihana.No laila, hoʻololi ʻia ka PLA no nā hemahema he nui i luna.
He ʻano palupalu ko PBAT, ductility ikaika, a me ka pōʻaiapili degradation pōkole;PLA he crispy kikokikona, ilihune paakiki, a lōʻihi degradation pōʻai.No laila, ʻo ka hui ʻana i nā mea ʻelua he ala maikaʻi loa ia e hoʻomaikaʻi ai i ka hana.
ʻEhā: PBAT/PLA mea hoʻolauna
ʻO ka hoʻoheheʻe ʻana o PBAT a me PLA kahi ʻano hoʻololi kino.ʻO ka mea nui e koi i ka hoʻohālikelike maikaʻi.Eia naʻe, nui ka solubility o PBAT a me PLA, no laila ʻilihune ka hoʻohālikelike ʻana, a paʻakikī ke hoʻohui like.
ʻO ka hoʻomaikaʻi ʻana i ka pilina o PBAT a me PLA ka pilikia nui.Pono e hoʻohui ʻia i hoʻokahi a ʻoi aku paha nā pahu i ka hui ʻana o ka hui ʻana e hoʻomaikaʻi i ka pili ʻana o ka PBAT a me PLA interface.ʻO nā ipu i hoʻohana mau ʻia: plasticizers, reactivity, reaction, and hard polymer polymer.
Loaʻa i ka PLA a me ka PBAT ka hana hoʻokō, no laila pono e loaʻa ka ratio maikaʻi loa o ka hana piha.
1. Piʻi ka māhele o PLA i 40% i nā nodes.Hoʻemi mua ʻia ka ikaika hoʻopololei o ka mea a laila hoʻonui.
2. Inā ʻoi aku ka nui o ka PLA ma mua o 70%, ʻoi aku ka crispy o ka mea a ʻaʻole hiki ke puhi ʻia i ke kiʻiʻoniʻoni.No laila, pono e mālama ʻia ka hapa o PLA i ka PBAT ma kahi o 1: 1 e like me ke ʻano o ka mea hoʻohui.
【Hoʻohaʻahaʻa hana】
ʻO ka pane mua o ka hoʻohaʻahaʻa waiwai ʻo ia ka pane hydrolyzed o nā molekele wai e komo.Inā he mea PBAT ʻokoʻa ia, he paʻakikī ke hoʻohaʻahaʻa ʻia no ka mea he paʻa paʻa ester ka molekala.Hiki i nā molekala PLA ke hoʻohaʻahaʻa i loko e ka wai.No laila, ʻoi aku ka kiʻekiʻe o ka ʻike PLA, ʻoi aku ka wikiwiki o ka hoʻohaʻahaʻa ʻana i nā mea.
Ka manawa hoʻouna: Sep-08-2022