PLA yog dab tsi?Txhua Yam Koj Yuav Tsum Paub
Koj puas tau tshawb nrhiav lwm txoj hauv kev rau roj av-raws li cov yas thiab ntim khoom?Kev ua lag luam niaj hnub no tau nce mus rau biodegradable thiab eco-friendly cov khoom tsim los ntawm cov khoom siv txuas ntxiv mus.
PLA zaj duab xisCov khoom lag luam tau nrawm dhau los ua ib qho ntawm cov khoom siv biodegradable thiab ib puag ncig zoo hauv kev lag luam.Ib txoj kev tshawb fawb 2017 tau pom tias hloov cov roj av-raws li plastics nrog bio-based plastics tuaj yeem txo qis kev lag luam tsev cog khoom emissions los ntawm 25%.
PLA yog dab tsi?
PLA, los yog polylactic acid, yog tsim los ntawm tej fermentable qab zib.Feem ntau PLA yog tsim los ntawm pob kws vim pob kws yog ib qho ntawm cov khoom qab zib uas pheej yig tshaj plaws thiab muaj nyob thoob plaws ntiaj teb.Txawm li cas los xij, qab zib, tapioca cag, cassava, thiab qab zib beet pulp yog lwm txoj kev xaiv.
Zoo li feem ntau ntawm chemistry ntsig txog, txheej txheem ntawm kev tsim PLA los ntawm pob kws yog qhov nyuaj heev.Txawm li cas los xij, nws tuaj yeem piav qhia hauv ob peb kauj ruam ncaj nraim.
PLA cov khoom ua li cas?
Cov kauj ruam yooj yim los tsim polylactic acid los ntawm pob kws yog raws li nram no:
1. Thawj pob kws hmoov txhuv nplej siab yuav tsum tau hloov mus rau hauv qab zib los ntawm kev siv tshuab hu ua ntub milling.Nthuav milling cais cov hmoov txhuv nplej siab los ntawm cov kernels.Acid lossis enzymes raug ntxiv thaum cov khoom sib cais.Tom qab ntawd, lawv tau rhaub kom hloov cov hmoov txhuv nplej siab rau hauv dextrose (aka qab zib).
2. Tom ntej no, dextrose yog fermented.Ib txoj hauv kev fermentation feem ntau suav nrog ntxiv cov kab mob Lactobacillus rau dextrose.Qhov no, nyob rau hauv lem, tsim lactic acid.
3. Cov lactic acid ces hloov mus rau hauv lactide, ib lub nplhaib-daim ntawv dimer ntawm lactic acid.Cov lactide molecules sib koom ua ke los tsim cov polymers.
4. Qhov tshwm sim ntawm cov polymerization yog cov khoom me me ntawm cov khoom siv raw polylactic acid yas uas tuaj yeem hloov mus rau hauv ib qho array ntawm PLA cov khoom yas.
Cov txiaj ntsig ntawm PLA khoom yog dab tsi?
PLA xav tau 65% tsawg zog los tsim dua li cov khoom siv roj av.Nws tseem tso tawm 68% tsawg dua lub tsev cog khoom gases.Thiab qhov ntawd tsis yog txhua yam:
Cov txiaj ntsig ib puag ncig:
Muab piv rau PET plastics - Ntau tshaj 95% ntawm lub ntiaj teb cov yas yog tsim los ntawm cov roj av lossis roj av.Fossil roj-raws li plastics tsis tsuas yog muaj kev phom sij;lawv kuj yog ib qho kev pab finite.PLA cov khoom lag luam nthuav tawm kev ua haujlwm, rov ua dua tshiab, thiab sib piv hloov pauv.
Bio-based- Cov khoom siv bio-based cov ntaub ntawv yog muab los ntawm kev ua liaj ua teb tauj dua tshiab lossis cov nroj tsuag.Vim tias tag nrho cov khoom PLA yog los ntawm cov hmoov txhuv nplej siab, polylactic acid yog suav tias yog bio-based.
Biodegradable- PLA cov khoom lag luam ua tiav cov qauv thoob ntiaj teb rau biodegradation, ib txwm degrading ntau dua li muab tso rau hauv qhov chaw pov tseg.Nws xav tau qee yam kev mob kom degrade sai.Nyob rau hauv ib qho chaw muaj composting, nws tuaj yeem tawg hauv 45-90 hnub.
Tsis emit toxic fumes - Tsis zoo li lwm yam plastics, bioplastics tsis emit tej pa phem thaum lawv incinerated.
Thermoplastic- PLA yog cov thermoplastic, yog li nws yog moldable thiab malleable thaum rhuab mus rau nws melting kub.Nws tuaj yeem ua kom ruaj khov thiab txhaj tshuaj molded rau hauv ntau hom ua rau nws muaj kev xaiv zoo heev rau kev ntim khoom noj thiab 3D luam ntawv.
Zaub mov tiv tauj-pom zoo- Polylactic acid tau pom zoo raws li Kev Pom Zoo Pom Zoo (GRAS) polymer thiab muaj kev nyab xeeb rau kev sib cuag zaub mov.
Cov txiaj ntsig ntawm kev ntim khoom noj:
Lawv tsis muaj cov tshuaj lom neeg tsis zoo ib yam li cov khoom siv roj av
Muaj zog npaum li ntau cov khoom siv yas
Lub freezer-kev nyab xeeb
Cov khob tuaj yeem tswj qhov kub txog li 110 ° F (PLA cov tais diav tuaj yeem tswj tau qhov kub txog li 200 ° F)
Non-toxic, carbon-neutral, thiab 100% tauj dua tshiab
Yav dhau los, thaum cov neeg ua haujlwm pabcuam zaub mov xav hloov mus rau eco-friendly ntim, lawv tsuas pom cov khoom kim thiab subpar.Tab sis PLA yog qhov ua tau zoo, raug nqi zoo, thiab ruaj khov.Kev hloov mus rau cov khoom lag luam no yog ib kauj ruam tseem ceeb rau kev txo koj lub lag luam zaub mov cov pa roj carbon hneev taw.
Dhau li ntawm kev ntim khoom noj, lwm yam kev siv rau PLA yog dab tsi?
Thaum nws tau tsim thawj zaug, PLA raug nqi txog $ 200 los ua ib phaus.Ua tsaug rau kev tsim kho tshiab hauv kev tsim khoom, nws raug nqi tsawg dua $ 1 ib phaus los tsim hnub no.Vim tias nws tsis raug nqi nyiaj ntxiv lawm, polylactic acid muaj peev xwm rau kev saws loj heev.
Cov kev siv feem ntau suav nrog:
3D luam ntawv cov ntaub ntawv filament
Ntim khoom noj
Hnab ntim khoom
Ntim
Hauv txhua daim ntawv thov no, PLA lwm txoj kev nthuav qhia meej qhov zoo dua cov ntaub ntawv ib txwm muaj.
Piv txwv li, hauv 3D tshuab luam ntawv, PLA filaments yog ib qho kev xaiv nrov tshaj plaws.Lawv muaj cov ntsiab lus melting qis dua lwm cov kev xaiv filament, ua rau lawv yooj yim dua thiab siv tau yooj yim dua.3D luam ntawv PLA filament emits lactide, uas yog suav hais tias yog ib tug tsis muaj tshuaj lom fume.Yog li, tsis zoo li cov khoom siv filament, nws luam tawm yam tsis muaj teeb meem toxins.
Nws kuj nthuav qhia qee qhov zoo ntawm kev kho mob.Nws tau txais txiaj ntsig vim nws cov biocompatibility thiab kev nyab xeeb degradation li PLA cov khoom degrade rau hauv lactic acid.Peb lub cev ib txwm tsim lactic acid, yog li nws yog qhov sib xyaw ua ke.Vim li no, PLA feem ntau siv rau hauv kev xa tshuaj, kev cog qoob loo, thiab cov ntaub so ntswg engineering.
Hauv ntiaj teb fiber ntau thiab textile, cov neeg tawm tswv yim xav hloov cov polyesters tsis txuas ntxiv nrog PLA fiber ntau.Npuag thiab textiles ua nrog PLA fiber ntau yog hnav, breathable, thiab recyclable.
PLA yog siv dav hauv kev lag luam ntim khoom.Cov tuam txhab loj xws li Walmart, Newman's Own Organics thiab Wild Oats tau pib siv cov ntim khoom ntim rau ib puag ncig.
Puas yog PLA ntim cov khoom tsim nyog rau kuv lub lag luam?
Yog tias koj cov lag luam tam sim no siv ib yam ntawm cov khoom hauv qab no thiab koj mob siab rau kev ruaj khov thiab txo koj lub lag luam cov pa roj carbon hneev taw, ces PLA ntim yog qhov kev xaiv zoo tshaj:
Cups (cov khob txias)
Deli thawv
Kev ntim khoom ntim
Khoom noj khoom haus thawv
Straws
Kas fes hnab
Yog xav paub ntxiv txog YITO Ntim cov khoom pheej yig thiab ib puag ncig-phooj ywg PLA, hu rau!
Get free sample by williamchan@yitolibrary.com.
Yam khoom
Post lub sij hawm: May-28-2022