ʻO PLA kekahi o nā mea biodegradable i noiʻi nui ʻia ma ka ʻāina a me ka honua, me ka lāʻau lapaʻau, hoʻopili, a me nā noi fiber ʻekolu mau wahi noi kaulana. Hana ʻia ʻo PLA mai ka lactic acid maoli, nona ka biodegradability maikaʻi a me ka biocompatibility. ʻOi aku ka haʻahaʻa o kāna ukana ola ma ke kaiapuni ma mua o nā mea i hoʻokumu ʻia i ka petroleum, a ua manaʻo ʻia ʻo ia ka mea hoʻohiki maikaʻi loa.
Hiki ke hoʻoheheʻe ʻia ka polylactic acid (PLA) i carbon dioxide a me ka wai ma lalo o nā kūlana kūlohelohe ma hope o ka hoʻolei ʻia ʻana. Loaʻa iā ia ke kūpaʻa wai maikaʻi, nā waiwai mechanical, biocompatibility, hiki ke hoʻopili ʻia e nā meaola, a ʻaʻohe haumia i ke kaiapuni. Loaʻa iā PLA nā waiwai mechanical maikaʻi. Loaʻa iā ia ka ikaika kū'ē kiʻekiʻe, ka loli maikaʻi a me ke kūpaʻa wela, ka plasticity, processability, ʻaʻohe discoloration, permeability maikaʻi i ka oxygen a me ka mahu wai, a me ka transparency maikaʻi, anti mold a me nā waiwai antibacterial, me ke ola lawelawe o 2-3 mau makahiki.
Kiʻiʻoniʻoni hoʻopaʻa meaʻai
ʻO ka hōʻailona hana koʻikoʻi o nā mea hoʻopihapiha he breathability, a hiki ke hoʻoholo ʻia ke kahua noi o kēia mea i loko o ka ʻeke e pili ana i kona hanu ʻokoʻa. Pono kekahi mau mea hoʻopili i ka oxygen permeability e hāʻawi i ka lako oxygen i ka huahana; Pono kekahi mau mea hoʻopihapiha i nā waiwai pale oxygen ma ke ʻano o nā mea, e like me ka mea inu mea inu, e koi ana i nā mea hiki ke pale i ka oxygen mai ke komo ʻana i ka ʻeke a no laila ke keʻakeʻa nei i ka ulu ʻana o ka mold. Loaʻa iā PLA ka pale kinoea, ka pale wai, ka ʻike, a me ka paʻi maikaʻi.
ʻAlohilohi
He maikaʻi ka ʻike a me ka nani o ka PLA, a ua hoʻohālikelike ʻia kāna hana maikaʻi me ka pepa aniani a me ka PET, ʻaʻole i loaʻa i nā plastic biodegradable ʻē aʻe. ʻO ka māmā a me ka nani o PLA he 2-3 mau manawa o ka kiʻi PP maʻamau a me 10 mau manawa o LDPE. ʻO kāna ʻike kiʻekiʻe e hoʻohana ai i ka PLA ma ke ʻano he mea ʻoluʻolu aesthetically. No ka pahu lole candy, i kēia manawa, nui nā pahu candy ma ka mākeke hoʻohanaPLA pahu kiʻiʻoniʻoni.
ʻO ke ʻano a me ka hana ʻana o kēiapahu kiʻiʻoniʻoniua like ia me ke kiʻiʻoniʻoni lole lole kuʻuna, me ka ʻike kiʻekiʻe, ka paʻa paʻa maikaʻi, ka paʻi, a me ka ikaika. Loaʻa iā ia nā waiwai pale maikaʻi, hiki ke mālama maikaʻi i ke ʻala o ka candy.
pale
Hiki ke hana ʻia ʻo PLA i mau huahana kiʻiʻoniʻoni lahilahi me ka ʻike kiʻekiʻe, nā waiwai pale maikaʻi, ka hana maikaʻi loa, a me nā waiwai mechanical, hiki ke hoʻohana ʻia no ka hoʻopili ʻana o nā huaʻai a me nā mea kanu. Hiki iā ia ke hana i kahi wahi mālama kūpono no nā huaʻai a me nā mea kanu, mālama i ko lākou ola, hoʻopaneʻe i ka ʻelemakule, a mālama i ko lākou kala, ʻala, ʻono, a me ke ʻano. Akā i ka hoʻohana ʻia ʻana i nā mea hoʻopihapiha meaʻai maoli, pono mau kekahi mau hoʻololi e hoʻololi i nā ʻano o ka meaʻai ponoʻī, i mea e loaʻa ai nā hopena ʻoi aku ka maikaʻi.
No ka laʻana, ma nā noi kūpono, ua ʻike nā hoʻokolohua ʻoi aku ka maikaʻi o nā kiʻiʻoniʻoni hui ʻia ma mua o nā kiʻiʻoniʻoni maʻemaʻe. Hoʻopili ʻo He Yiyao i ka broccoli me ka kiʻiʻoniʻoni PLA maʻemaʻe a me ka kiʻi ʻoniʻoni PLA, a mālama ʻia ma (22 ± 3) ℃. Ua hoʻāʻo mau ʻo ia i nā loli i nā ʻano hōʻailona physiological a me biochemical o ka broccoli i ka wā mālama. Ua hōʻike ʻia nā hopena he hopena maikaʻi ka mālama ʻana o ke kiʻi ʻoniʻoni PLA ma ka broccoli i mālama ʻia ma ka lumi wela. Hiki iā ia ke hana i kahi pae haʻahaʻa a me kahi ea i hoʻomalu ʻia i loko o ka ʻeke ʻeke e kūpono i ka hoʻoponopono ʻana i ka hanu broccoli a me ka metabolism, mālama i ka maikaʻi o ka broccoli a mālama i kona ʻono mua a me ka ʻono, a laila e hoʻolōʻihi i ke ola o ka broccoli i ka lumi lumi ma 23 lā.
Ka hana antibacterial
Hiki i ka PLA ke hana i kahi kaiapuni ʻakika nāwaliwali ma ka ʻili o ka huahana, e hāʻawi ana i kumu no nā waiwai antibacterial a me anti mold. Inā hoʻohana ʻia nā mea antibacterial ʻē aʻe i ka hui pū ʻana, hiki i ka helu antibacterial ke piʻi ma luna o 90%, kūpono ia no ka hoʻopili antibacterial o ka huahana. Ua aʻo ʻo Yin Min i ka hopena o ka mālama ʻana i ke ʻano hou o PLA nano antibacterial composite kiʻiʻoniʻoni ma luna o nā halo ʻai me ka hoʻohana ʻana iā Agaricus bisporus a me Auricularia auricula ma ke ʻano he laʻana, i mea e hoʻolōʻihi ai i ke ola o nā halo ʻai a mālama i ko lākou kūlana maikaʻi. Ua hōʻike ʻia nā hopena i hiki i ka PLA/rosemary essential oil (REO)/AgO composite film ke hoʻopaneʻe maikaʻi i ka hōʻemi ʻana o ka maʻiʻo o ka huaora C i ka auricularia auricula.
Hoʻohālikelike ʻia me LDPE film, PLA film, a me PLA/GEO/TiO2 kiʻiʻoniʻoni, ʻoi aku ka kiʻekiʻe o ka wai permeability o PLA/GEO/Ag composite film ma mua o nā kiʻiʻoniʻoni ʻē aʻe. Mai kēia, hiki ke hoʻoholo ʻia e hiki ke pale pono i ka hoʻokumu ʻana o ka wai condensed a hoʻokō i ka hopena o ka inhibiting microbial ulu; I ka manawa like, loaʻa iā ia ka hopena antibacterial maikaʻi loa, hiki ke pale pono i ka hana hou ʻana o nā microorganisms i ka wā o ka mālama ʻana o ka pepeiao gula, a hiki ke hoʻonui nui i ke ola papa i 16 mau lā.
Hoʻohālikelike ʻia me ka kiʻi ʻoniʻoni PE maʻamau, ʻoi aku ka maikaʻi o ka PLA
Hoʻohālikelike i nā hopena mālama oPE kiʻiʻoniʻoni plastikwili a me ke kiʻiʻoniʻoni PLA ma ka broccoli. Ua hōʻike ʻia nā hopena i ka hoʻohana ʻana i ka paʻi kiʻiʻoniʻoni PLA hiki ke kāohi i ka melemele a me ka hoʻoheheʻe ʻana o ka ʻōpala o ka broccoli, e mālama pono i ka ʻike o ka chlorophyll, ka huaʻa C, a me nā mea hoʻoheheʻe i loko o ka broccoli. ʻO ke kiʻi ʻoniʻoni PLA he maikaʻi loa ke koho ʻana i ke kinoea, e kōkua ana i ka hoʻokumu ʻana i kahi wahi mālama haʻahaʻa O2 a me ka CO2 kiʻekiʻe i loko o nā ʻeke ʻeke PLA, no laila ke kāohi nei i nā hana ola o ka broccoli, e hōʻemi ana i ka nalowale o ka wai a me ka ʻai meaʻai. Ua hōʻike ʻia nā hopena i ka hoʻohālikelike ʻia me ka paʻi kiʻi ʻoniʻoni PE, hiki ke hoʻonui i ke ola o ka broccoli ma ka lumi lumi ma 1-2 mau lā, a he mea nui ka hopena mālama.
Ka manawa hoʻouna: Oct-09-2024