Umhlahlandlela we-PLA - I-Polylactic Acid

Iyini i-PLA? Konke Odinga Ukukwazi

Ingabe ubufuna enye indlela yamapulasitiki asekelwe ku-petroleum kanye nokupakisha? Imakethe yanamuhla iya ngokuya ibhekela emikhiqizweni ebolayo kanye ne-eco-friendly eyenziwe ngezinsiza ezivuselelekayo.

Ifilimu ye-PLAimikhiqizo isiphenduke enye yezinketho ezidume kakhulu ezibolayo nezihambisana nemvelo emakethe. Ucwaningo lwango-2017 lwathola ukuthi ukufaka amapulasitiki asekelwe ku-petroleum esikhundleni se-bio-based kunganciphisa ukukhishwa kwegesi ebamba ukushisa ezimbonini ngama-25%.

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Iyini i-PLA?

I-PLA, noma i-polylactic acid, ikhiqizwa kunoma yimuphi ushukela ovutshelwayo. I-PLA eminingi yenziwe ngommbila ngoba ummbila ungowoshukela oshibhe kakhulu futhi otholakala kakhulu emhlabeni jikelele. Nokho, umoba, impande ye-tapioca, umdumbula, ne-sugar beet pulp ngezinye izindlela.

Njengezinto eziningi ezihlobene namakhemikhali, inqubo yokudala i-PLA kusuka kummbila iyinkimbinkimbi kakhulu. Nokho, ingachazwa ngezinyathelo ezimbalwa eziqondile.

Yenziwa kanjani imikhiqizo ye-PLA?

Izinyathelo eziyisisekelo zokwakha i-polylactic acid kusuka kummbila zimi kanje:

1. Isitashi sokuqala sombila kufanele siguqulwe sibe ushukela ngokusebenzisa inqubo yomshini ebizwa ngokuthi i-wet milling. Ukugaya okumanzi kwehlukanisa isitashi nezinhlamvu. I-Acid noma ama-enzyme ayengezwa uma lezi zingxenye sezihlukanisiwe. Khona-ke, ziyashiswa ukuguqula isitashi sibe yi-dextrose (aka ushukela).

2. Okulandelayo, i-dextrose iyavutshelwa. Enye yezindlela ezivame kakhulu zokuvutshelwa ihlanganisa ukufaka amagciwane e-Lactobacillus ku-dextrose. Lokhu, futhi, kudala i-lactic acid.

3. I-lactic acid ibe isiguqulwa ibe i-lactide, i-dimer ye-ring-form ye-lactic acid. Lawa ma-molecule e-lactide ahlangana ndawonye ukuze enze ama-polymer.

4. Umphumela we-polymerization izingcezu ezincane zepulasitiki ye-polylactic acid eluhlaza engaguqulwa ibe uxhaxha lwemikhiqizo yepulasitiki ye-PLA.

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Yiziphi izinzuzo zemikhiqizo ye-PLA?

I-PLA idinga amandla angaphansi ngo-65% ukukhiqiza kunamapulasitiki endabuko, asekelwe ku-petroleum. Iphinde ikhiphe amagesi abamba ukushisa angaphansi kwama-68%. Futhi akugcini lapho:

Izinzuzo zemvelo:

Uma kuqhathaniswa namapulasitiki e-PET - Ngaphezu kuka-95% wamapulasitiki omhlaba enziwa ngegesi yemvelo noma uwoyela ongahluziwe. Amapulasitiki asekelwe kuphethiloli awagcini nje ngokuba yingozi; nazo ziyinsiza enomkhawulo. Imikhiqizo ye-PLA yethula ukushintshwa okusebenzayo, okuvuselelekayo, nokuqhathanisekayo.

Isisekelo se-bio– Izinto zomkhiqizo osuselwe ku-bio zitholakala kwezolimo ezivuselelekayo noma izitshalo. Ngenxa yokuthi yonke imikhiqizo ye-PLA ivela kusitashi sikashukela, i-polylactic acid ibhekwa njenge-bio-based.

I-Biodegradable- Imikhiqizo ye-PLA ifinyelela izindinganiso zamazwe ngamazwe zokuwohloka kwemvelo, okonakele ngokwemvelo esikhundleni sokunqwabelana ezindaweni zokulahla imfucumfucu. Idinga izimo ezithile ukuze zehlise isithunzi ngokushesha. Endaweni yokwenza umquba wezimboni, ingabhidlika ezinsukwini ezingama-45-90.

Ayikhiphi intuthu enobuthi - Ngokungafani namanye amapulasitiki, ama-bioplastic awakhiphi intuthu enobuthi lapho eshiswa.

I-Thermoplastic– I-PLA iyi-thermoplastic, ngakho iyabumbeka futhi ithambile uma ishiselwa ezingeni layo lokushisa elincibilikayo. Ingaqiniswa futhi ibunjwe ngomjovo ibe amafomu ahlukahlukene okwenza kube inketho enhle kakhulu yokupakishwa kokudla kanye nokuphrinta kwe-3D.

Oxhumana naye Wokudla uvunyelwe- I-Polylactic acid ivunyelwe njenge-polymer Eyaziwa Ngokujwayelekile Njengephephile (i-GRAS) futhi iphephile ukuthintana nokudla.

Izinzuzo zokupakishwa kokudla:

Azinawo amakhemikhali ayingozi afanayo nemikhiqizo esekwe ku-petroleum

Njengoba eqinile njengoba abaningi ezivamile plastic

Isiqandisi-siphephile

Izinkomishi zingakwazi ukumelana nezinga lokushisa elifinyelela ku-110°F (izitsha ze-PLA zingakwazi ukumelana nezinga lokushisa elifika ku-200°F)

Ayinabuthi, ayithathi hlangothi, futhi 100% ivuseleleka

Esikhathini esedlule, lapho opharetha besevisi yokudla befuna ukushintshela emaphaketheni e-eco-friendly, kungenzeka ukuthi bathole imikhiqizo ebizayo nephansi kuphela. Kodwa i-PLA iyasebenza, iyabiza, futhi iyasimama. Ukushintshela kule mikhiqizo kuyisinyathelo esibalulekile sokwehlisa izinga lekhabhoni lebhizinisi lakho lokudla.

Ngaphandle kokupakishwa kokudla, yiziphi ezinye izinto ezisetshenziselwa i-PLA?

Lapho ikhiqizwa okokuqala, i-PLA yabiza cishe u-$200 ukwenza iphawundi elilodwa. Ngenxa yokuqanjwa kwezinqubo zokukhiqiza, kubiza ngaphansi kuka-$1 ngephawundi ukukhiqiza namuhla. Ngenxa yokuthi ayisabizi kakhulu, i-polylactic acid inamandla okutholwa okukhulu.

Ukusetshenziswa okuvame kakhulu kuhlanganisa:

I-3D printing material filament

Ukupakishwa kokudla

Ukupakisha izingubo

Ukupakisha

Kuzo zonke lezi zinhlelo zokusebenza, ezinye izindlela ze-PLA ziveza izinzuzo ezicacile kunezinto ezivamile.

Isibonelo, kumaphrinta e-3D, i-PLA filaments ingenye yezinketho ezidume kakhulu. Anendawo encibilikayo ephansi kunezinye izinketho zefilament, okwenza kube lula futhi kuphephe ukuzisebenzisa. I-PLA filament yokuphrinta ye-3D ikhipha i-lactide, ethathwa njengentuthu engenabuthi. Ngakho-ke, ngokungafani nezinye izindlela ze-filament, iphrinta ngaphandle kokukhipha ubuthi obuyingozi.

Ibuye iveze izinzuzo ezithile ezicacile emkhakheni wezokwelapha. Ithandwa ngenxa ye-biocompatibility yayo kanye nokuwohloka okuphephile njengoba imikhiqizo ye-PLA incipha ibe yi-lactic acid. Imizimba yethu ikhiqiza i-lactic acid ngokwemvelo, ngakho iyinhlanganisela ehambisanayo. Ngenxa yalokhu, i-PLA ivame ukusetshenziswa ezinhlelweni zokulethwa kwezidakamizwa, izimila zezokwelapha, kanye nobunjiniyela bezicubu.

Emhlabeni wefayibha nezindwangu, abameli bahlose ukufaka ama-polyester angavuseleleki nge-PLA fiber. Izindwangu nezindwangu ezenziwe nge-PLA fibre azisindi, ziyaphefumula, futhi ziyasebenziseka kabusha.

I-PLA isetshenziswa kakhulu embonini yokupakisha. Izinkampani ezinkulu ezifana ne-Walmart, i-Newman's Own Organics kanye ne-Wild Oats zonke seziqalile ukusebenzisa amaphakheji ahlanganiswayo ngezizathu zemvelo.

Umhlahlandlela we-PLA

Ingabe imikhiqizo yokupakisha ye-PLA ilungele ibhizinisi lami?

Uma amabhizinisi akho njengamanje esebenzisa noma yiziphi izinto ezilandelayo futhi unothando lokusimama nokunciphisa i-carbon footprint yebhizinisi lakho, khona-ke ukupakishwa kwe-PLA kuyindlela enhle kakhulu:

Izinkomishi (izinkomishi ezibandayo)

Izitsha zeDeli

Ukupakishwa kwamabhamuza

Izitsha zokudla

Utshani

Izikhwama zekhofi

Ukuze ufunde kabanzi mayelana nemikhiqizo ye-PLA ethengekayo futhi evumelana nemvelo ye-YITO Packaging, thintana!

Get free sample by williamchan@yitolibrary.com.

 

Bhala umyalezo wakho lapha futhi usithumelele wona

Imikhiqizo Ehlobene


Isikhathi sokuthumela: May-28-2022