Kodi PLA ndi chiyani? Chilichonse Chimene Muyenera Kudziwa
Kodi mwakhala mukusaka njira ina yopangira mapulasitiki opangira mafuta? Msika wamasiku ano ukulowera kuzinthu zomwe zitha kuwonongeka komanso zokomera zachilengedwe zopangidwa kuchokera kuzinthu zongowonjezedwanso.
Chithunzi cha PLAZogulitsa zakhala imodzi mwazinthu zodziwika bwino zomwe zitha kuwonongeka komanso zachilengedwe pamsika. Kafukufuku wa 2017 adapeza kuti kusintha mapulasitiki opangidwa ndi petroleum ndi mapulasitiki opangidwa ndi bio kumatha kuchepetsa kutulutsa mpweya wowonjezera kutentha m'mafakitale ndi 25%.
Kodi PLA ndi chiyani?
PLA, kapena polylactic acid, amapangidwa kuchokera ku shuga wonyezimira. PLA yambiri imapangidwa kuchokera ku chimanga chifukwa chimanga ndi chimodzi mwa mashuga otsika mtengo komanso omwe amapezeka padziko lonse lapansi. Komabe, nzimbe, muzu wa tapioca, chinangwa, ndi zamtundu wa sugar beet ndizo njira zina.
Monga zinthu zambiri zokhudzana ndi chemistry, kupanga PLA kuchokera ku chimanga ndizovuta kwambiri. Komabe, zitha kufotokozedwa munjira zingapo zolunjika.
Kodi zinthu za PLA zimapangidwa bwanji?
Njira zopangira polylactic acid kuchokera ku chimanga ndi izi:
1. Wowuma wa chimanga woyamba uyenera kusinthidwa kukhala shuga kudzera munjira yamagetsi yotchedwa wet mphero. Mphero yonyowa imalekanitsa wowuma ndi maso. Asidi kapena ma enzyme amawonjezedwa pamene zigawozi zapatulidwa. Kenako, amatenthedwa kuti asinthe wowuma kukhala dextrose (aka shuga).
2. Kenaka, dextrose imafufuzidwa. Imodzi mwa njira zofala kwambiri zowotchera ndikuwonjezera mabakiteriya a Lactobacillus ku dextrose. Izi, nazonso, zimapanga lactic acid.
3. Asidiyo amasinthidwa kukhala lactide, dimer ya lactic acid. Mamolekyu a lactidewa amalumikizana pamodzi kuti apange ma polima.
4. Chotsatira cha polymerization ndi zidutswa zing'onozing'ono za pulasitiki ya polylactic acid yomwe imatha kusinthidwa kukhala zinthu zambiri zapulasitiki za PLA.
Ubwino wazinthu za PLA ndi zotani?
PLA imafuna mphamvu zochepera 65% kuti ipange kuposa mapulasitiki achikhalidwe, opangidwa ndi mafuta. Imatulutsanso mpweya wochepera 68% wocheperako. Ndipo si zokhazo:
Ubwino wa chilengedwe:
Poyerekeza ndi mapulasitiki a PET - Mapulasitiki opitilira 95% padziko lapansi amapangidwa kuchokera ku gasi wachilengedwe kapena mafuta opanda mafuta. Mapulasitiki opangidwa ndi mafuta opangidwa ndi zinthu zakale sali owopsa okha; iwonso ali gwero malire. Zogulitsa za PLA zimapereka ntchito, zongowonjezedwanso, komanso zofananira m'malo.
Zotengera zamoyo- Zopangidwa ndi bio-based product zimachokera ku ulimi kapena zomera zomwe zingangowonjezedwanso. Chifukwa zinthu zonse za PLA zimachokera ku shuga wowuma, polylactic acid imatengedwa ngati bio-based.
Zosawonongeka- Zogulitsa za PLA zimakwaniritsa miyezo yapadziko lonse lapansi pakuwonongeka kwachilengedwe, zonyozeka mwachilengedwe m'malo mowunjikana m'malo otayirako. Zimafunika kuti zinthu zina ziwonongeke msanga. M'mafakitale opangira kompositi, imatha kutha masiku 45-90.
Simatulutsa utsi wapoizoni - Mosiyana ndi mapulasitiki ena, ma bioplastics satulutsa utsi wapoizoni akawotchedwa.
Thermoplastic- PLA ndi thermoplastic, motero imatha kuumbika komanso kusungunuka ikatenthedwa mpaka kutentha kwake. Itha kukhala yolimba komanso yopangidwa ndi jekeseni m'mitundu yosiyanasiyana ndikupangitsa kuti ikhale njira yabwino kwambiri yopangira chakudya komanso kusindikiza kwa 3D.
Chakudya Kulumikizana-kuvomerezedwa- Asidi wa Polylactic amavomerezedwa ngati polima Yodziwika Bwino Monga Otetezeka (GRAS) ndipo ndiyotetezeka kukhudzana ndi chakudya.
Ubwino wa phukusi la chakudya:
Alibe mankhwala owopsa ngati mafuta opangidwa ndi petroleum
Amphamvu monga mapulasitiki ambiri ochiritsira
Freezer-otetezeka
Makapu amatha kutentha mpaka 110 ° F (ziwiya za PLA zimatha kutentha mpaka 200 ° F)
Zopanda poizoni, zopanda mpweya, komanso 100% zongowonjezwdwa
M'mbuyomu, pamene ogwira ntchito pazakudya ankafuna kusinthira ku phukusi lothandizira zachilengedwe, mwina adangopeza zodula komanso zotsika mtengo. Koma PLA ndi yogwira ntchito, yotsika mtengo, komanso yokhazikika. Kusinthira kuzinthu izi ndi gawo lofunikira pakuchepetsa kuchuluka kwa kaboni mubizinesi yanu yazakudya.
Kupatula kulongedza zakudya, ndi ntchito zina ziti za PLA?
Pamene idapangidwa koyamba, PLA idagula pafupifupi $200 kupanga paundi imodzi. Chifukwa cha luso lazopangapanga, zimawononga ndalama zosakwana $1 pa paundi kupanga lero. Chifukwa sichikuletsanso mtengo, asidi a polylactic amatha kutengedwa kwambiri.
Zomwe zimagwiritsidwa ntchito kwambiri ndi izi:
3D kusindikiza zakuthupi filament
Kupaka chakudya
Zovala zovala
Kupaka
M'mapulogalamu onsewa, njira zina za PLA zimawonetsa zabwino zambiri kuposa zida zakale.
Mwachitsanzo, mu osindikiza a 3D, PLA filaments ndi imodzi mwazosankha zodziwika kwambiri. Ali ndi malo otsika osungunuka kusiyana ndi njira zina za filament, zomwe zimapangitsa kuti zikhale zosavuta komanso zotetezeka kugwiritsa ntchito. 3D yosindikizira PLA filament imatulutsa lactide, yomwe imatengedwa ngati fuko lopanda poizoni. Choncho, mosiyana ndi njira zina za filament, zimasindikiza popanda kutulutsa poizoni woopsa.
Limaperekanso maubwino ena omveka bwino pankhani zachipatala. Zimayamikiridwa chifukwa cha biocompatibility yake komanso kuwonongeka kotetezeka pomwe zinthu za PLA zimatsika kukhala lactic acid. Matupi athu mwachibadwa amapanga lactic acid, choncho ndi chigawo chogwirizana. Chifukwa cha izi, PLA imagwiritsidwa ntchito pafupipafupi pamakina operekera mankhwala, ma implants azachipatala, komanso uinjiniya wa minofu.
M'dziko la fiber ndi nsalu, olimbikitsa amafuna kusintha ma polyester osasinthika ndi PLA fiber. Zovala ndi nsalu zopangidwa ndi ulusi wa PLA ndizopepuka, zopumira, komanso zobwezerezedwanso.
PLA imagwiritsidwa ntchito kwambiri pamakampani opanga ma CD. Makampani akuluakulu monga Walmart, Newman's Own Organics ndi Wild Oats onse ayamba kugwiritsa ntchito compostable phukusi pazifukwa za chilengedwe.
Kodi mapaketi a PLA ndi oyenera kubizinesi yanga?
Ngati mabizinesi anu akugwiritsa ntchito chilichonse mwazinthu zotsatirazi ndipo mumakonda kukhazikika komanso kuchepetsa kuchuluka kwa kaboni mubizinesi yanu, ndiye kuti kuyika PLA ndi njira yabwino kwambiri:
Makapu (makapu ozizira)
Zotengera za Deli
Kupaka matuza
Zotengera zakudya
Udzu
Matumba a khofi
Kuti mudziwe zambiri zamitengo ya PLA ya YITO Packaging yotsika mtengo komanso yosamalira zachilengedwe, lumikizanani!
Get free sample by williamchan@yitolibrary.com.
Zogwirizana nazo
Nthawi yotumiza: May-28-2022