Polylactic acid (PLA) thiab crystallized polylactic acid (CPLA) yog ob cov ntaub ntawv zoo ib puag ncig uas tau txais kev pom zoo hauvPLA thiabCPLA ntimkev lag luam hauv xyoo tas los no. Raws li bio-raws li plastics, lawv pom qhov zoo ib puag ncig zoo piv rau cov khoom siv petrochemical.
Kev txhais thiab qhov sib txawv ntawm PLA thiab CPLA
PLA, los yog polylactic acid, yog bio-yas uas ua los ntawm cov khoom siv txuas ntxiv dua tshiab xws li pob kws hmoov nplej los yog qab zib los ntawm fermentation, polymerization, thiab lwm yam txheej txheem. PLA muaj biodegradability zoo heev thiab tuaj yeem degraded los ntawm cov kab mob mus rau hauv carbon dioxide thiab dej nyob rau hauv tej yam kev mob. Txawm li cas los xij, PLA muaj qhov ua kom tsis muaj cua sov thiab feem ntau yog siv los ntawm qhov kub siab tshaj 60 ° C.
CPLA, los yog crystallized polylactic acid, yog cov khoom hloov kho uas tsim los ntawm crystallizing PLA los txhim kho nws cov cua sov. CPLA tuaj yeem tiv taus qhov kub siab tshaj 90 ° C, ua rau nws zoo tagnrho rau cov ntawv thov kom muaj cua sov siab dua. Qhov sib txawv tseem ceeb ntawm PLA thiab CPLA yog nyob rau hauv lawv cov thermal ua thiab kub tsis kam, nrog CPLA muaj ntau yam kev siv.
Environmental Impact ntawm PLA thiab CPLA
Kev tsim khoom ntawm PLA thiab CPLA yog ua raws li cov khoom siv biomass, txo qis kev vam khom rau cov peev txheej petrochemical. Thaum lub sij hawm loj hlob ntawm cov ntaub ntawv raw, carbon dioxide yog absorbed los ntawm photosynthesis, muab lub peev xwm rau carbon neutrality tshaj lawv tag nrho lifecycle. Piv nrog rau cov khoom siv yas, cov txheej txheem tsim khoom ntawm PLA thiab CPLA emit tsawg dua cov pa hauv tsev cog khoom, yog li txo lawv cov kev cuam tshuam tsis zoo.
Ntxiv thiab,PLA thiab CPLA yog biodegradable tom qab pov tseg, tshwj xeeb tshaj yog nyob rau hauv industrial composting ib puag ncig, uas lawv tuaj yeem degrade tag nrho hauv ob peb lub hlis. Qhov no txo qis cov teeb meem ua paug rau lub sijhawm ntev ntawm cov pov tseg yas hauv ib puag ncig ntuj thiab txo qhov kev puas tsuaj rau av thiab dej hiav txwv ecosystems los ntawm cov pov tseg yas.
Environmental Benefits ntawm PLA thiab CPLA
Txo qhov kev cia siab ntawm Fossil Fuels
PLA thiab CPLA yog tsim los ntawm cov khoom siv txuas ntxiv dua tshiab xws li pob kws hmoov txhuv nplej siab lossis qab zib, tsis zoo li cov yas yas uas cia siab rau cov khoom siv petrochemical. Qhov no txhais tau tias lawv cov txheej txheem ntau lawm txo qis kev vam khom rau cov khoom siv tsis tau txuas ntxiv dua tshiab xws li roj, pab txuag cov fossil fuels thiab txo cov pa roj carbon emissions, yog li txo kev hloov pauv huab cua.
Carbon Neutral Potential
Txij li thaum biomass raw khoom nqus cov pa roj carbon dioxide thaum lawv loj hlob los ntawm photosynthesis, kev tsim thiab siv PLA thiab CPLA tuaj yeem ua tiav cov pa roj carbon nruab nrab. Hauv qhov sib piv, kev tsim thiab siv cov yas yas feem ntau ua rau cov pa roj carbon emissions tseem ceeb. Yog li ntawd, PLA thiab CPLA pab txo cov pa hluav taws xob hauv tsev cog khoom tshaj lawv lub neej, txo kev sov siab thoob ntiaj teb.
Biodegradability
PLA thiab CPLA muaj biodegradability zoo heev, tshwj xeeb tshaj yog nyob rau hauv industrial composting ib puag ncig uas lawv tuaj yeem degrade tag nrho hauv ob peb lub hlis. Qhov no txhais tau hais tias lawv tsis nyob twj ywm nyob rau hauv tej yam ntuj tso ib puag ncig xws li tsoos plastics, txo cov av thiab marine muaj kuab paug. Ntxiv mus, cov khoom degradation ntawm PLA thiab CPLA yog carbon dioxide thiab dej, uas tsis muaj teeb meem rau ib puag ncig.
Kev rov ua dua tshiab
Txawm hais tias cov txheej txheem rov ua dua tshiab rau bioplastics tseem tab tom tsim, PLA thiab CPLA muaj qee qhov kev rov ua dua tshiab. Nrog kev nce qib hauv kev siv thev naus laus zis thiab kev txhawb nqa txoj cai, kev rov ua dua ntawm PLA thiab CPLA yuav dhau los ua ntau dua thiab muaj txiaj ntsig. Kev rov ua dua cov ntaub ntawv no tsis yog tsuas yog txo cov pov tseg yas ntxiv xwb tab sis tseem khaws cov peev txheej thiab lub zog.
Ua ntej, kev siv PLA thiab CPLA tuaj yeem txo qis kev siv cov khoom siv petrochemical thiab txhawb kev siv cov peev txheej ruaj khov. Raws li cov ntaub ntawv bio-based, lawv txo cov roj fossil siv thaum tsim khoom, yog li txo cov pa roj carbon emissions.
Txo cov khoom pov tseg yas
Vim qhov kev puas tsuaj sai ntawm PLA thiab CPLA nyob rau hauv cov xwm txheej tshwj xeeb, lawv tuaj yeem txo cov khoom pov tseg ntawm cov yas pov tseg hauv ib puag ncig ntuj, txo qhov kev puas tsuaj rau thaj av thiab dej hiav txwv ecosystems. Qhov no pab tiv thaiv biodiversity, tswj ecological tshuav nyiaj li cas, thiab muab ib tug noj qab nyob zoo nyob ib puag ncig rau tib neeg thiab lwm yam kab mob.
Txhim kho kev siv peev txheej ua tau zoo
Raws li cov ntaub ntawv bio-based, PLA thiab CPLA tuaj yeem ua tiav cov peev txheej siv tau zoo los ntawm cov txheej txheem rov ua dua thiab degradation. Piv nrog rau cov khoom siv yas, lawv cov txheej txheem tsim khoom thiab siv cov txheej txheem ntau dua ib puag ncig, txo lub zog thiab cov peev txheej pov tseg thiab txhim kho tag nrho cov peev txheej kev siv tau zoo.
Qhov thib ob, biodegradability ntawm PLA thiab CPLA pab txo cov pa phem ib puag ncig los ntawm kev txo qis ib puag ncig los ntawm kev pov tseg thiab kev tsim txom. Tsis tas li ntawd, cov khoom degradation ntawm PLA thiab CPLA yog cov pa roj carbon dioxide thiab dej, uas tsis ua rau muaj kev puas tsuaj rau ib puag ncig.
Thaum kawg, PLA thiab CPLA kuj muaj kev rov ua dua tshiab. Txawm hais tias cov txheej txheem rov ua dua tshiab rau bioplastics tseem tsis tau tsim kom tiav, nrog rau kev txhim kho thev naus laus zis thiab kev txhawb nqa txoj cai, kev rov ua dua ntawm PLA thiab CPLA yuav dhau los ua ntau dua. Qhov no yuav txo qis ib puag ncig lub nra ntawm cov pov tseg yas thiab txhim kho kev siv peev txheej.
Environmental Implementation Plans
Txhawm rau kom paub meej cov txiaj ntsig ib puag ncig ntawm PLA thiab CPLA, kev txhim kho kev tsim kho yog xav tau hauv kev tsim khoom, kev siv, thiab rov ua dua tshiab. Ua ntej, cov tuam txhab yuav tsum raug txhawb kom txais PLA thiab CPLA los ua lwm txoj hauv kev rau cov yas yas, txhawb kev tsim cov txheej txheem ntsuab. Tsoom fwv tuaj yeem txhawb nqa qhov no los ntawm txoj cai txhawb nqa thiab kev pab nyiaj txiag los txhawb kev lag luam bio-based plastics.
Qhov thib ob, ntxiv dag zog rau kev tsim kho cov khoom siv rov ua dua tshiab thiab kev ua haujlwm rau PLA thiab CPLA yog qhov tseem ceeb. Tsim kom muaj kev txheeb xyuas thiab rov ua dua tshiab kom ntseeg tau tias bioplastics tuaj yeem nkag mus rau hauv cov khoom siv rov ua dua lossis cov khoom sib xyaw. Tsis tas li ntawd, kev nce qib ntawm cov thev naus laus zis tuaj yeem txhim kho tus nqi rov ua dua tshiab thiab kev ua kom tsis zoo ntawm PLA thiab CPLA.
Tsis tas li ntawd, kev kawm thiab kev paub txog pej xeem yuav tsum tau txhim kho kom muaj kev lees paub ntawm cov neeg siv khoom thiab txaus siab siv.PLA thiab CPLA cov khoom. Los ntawm ntau yam kev tshaj tawm thiab kev kawm, kev paub txog ib puag ncig pej xeem tuaj yeem muaj zog, txhawb kev noj zaub ntsuab thiab kev cais pov tseg.
Cov txiaj ntsig ib puag ncig xav tau
Los ntawm kev ua raws li cov kev ntsuas saum toj no, cov txiaj ntsig ib puag ncig hauv qab no xav tau. Ua ntej, kev siv dav dav ntawm PLA thiab CPLA hauv kev ntim khoom yuav txo qis kev siv cov yas petrochemical, yog li txo cov pa phem los ntawm qhov chaw. Thib ob, kev rov ua dua tshiab thiab biodegradability ntawm bio-based plastics yuav txo tau lub nra ntawm ib puag ncig los ntawm kev pov tseg thiab kev ua kom tawg, txhim kho ecological zoo.
Ib txhij, kev nce qib thiab kev siv ntawm PLA thiab CPLA yuav tsav txoj kev loj hlob ntawm kev lag luam ntsuab thiab txhawb kev tsim cov qauv kev lag luam ncig. Qhov no tsis yog tsuas yog pab rau kev siv cov peev txheej ruaj khov tab sis tseem txhawb nqa cov thev naus laus zis tshiab thiab kev loj hlob ntawm kev lag luam hauv kev lag luam, tsim lub voj voog zoo ntawm kev loj hlob ntsuab.
Hauv kev xaus, raws li cov ntaub ntawv tshiab ib puag ncig, PLA thiab CPLA nthuav tawm cov peev xwm loj heev hauv kev txo cov peev txheej thiab kev ua qias tuaj ib puag ncig. Nrog cov kev taw qhia tsim nyog thiab kev txhawb nqa thev naus laus zis, lawv cov ntawv thov dav hauv kev ntim khoom tuaj yeem ua tiav qhov kev xav tau ntawm ib puag ncig, ua rau muaj txiaj ntsig zoo los tiv thaiv lub ntiaj teb ib puag ncig.
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Post lub sij hawm: Jun-20-2024
