PLA vs PBAT: Cov khoom siv tseem ceeb siv hauv Compostable ntim
Ob peb xyoos dhau los, thaum kuv thawj zaug pib ua tib zoo saib rau cov ntim khoom ntim, kuv xav tias qhov kev daws yuav yooj yim heev - tsuas yog hloov cov khoom siv yas nrog cov khoom siv biodegradable. Tom qab siv sij hawm ntau nyob ib ncig ntawm lub ntim hloov pauv thiab cov khoom siv, kuv pom tau tias nws tsis ua haujlwm li ntawd.
Flexible ntim films tsis tshua muaj los ntawm ib qho khoom siv. Txawm tias cov khoom ntim yas feem ntau tso siab rau ob peb txheej los yog cov khoom sib xyaw ua ke kom ua tiav qhov sib npaug ntawm lub zog, yoog raws, thiab kev ua haujlwm tsis zoo. Compostable ntim raws li tib lub logic.
Hauv feem ntau ntawm cov haujlwm kuv tau pom, ob yam khoom tshwm sim dua: PLA thiab PBAT. Lawv tsis yog tsuas yog biodegradable polymers muaj, tab sis lawv yog cov feem ntau siv thaum tib neeg sim tsim cov yeeb yaj kiab uas hloov tau yooj yim.
cov khoom siv thev naus laus zis
Thawj zaug kuv tuav PLA zaj duab xis
PLA, los yog polylactic acid, feem ntau yog thawj biodegradable yas neeg ntsib thaum lawv pib saib rau hauv cov ntaub ntawv compostable. Ib qho laj thawj yog nws keeb kwm - nws yog tsim los ntawm cov nroj tsuag -raws li feedstocks xws li pob kws starch los yog qab zib es tsis yog roj av.
Thawj zaug kuv tau ua tus qauv PLA zaj duab xis yog thaum lub sij hawm sim ntim me me khiav ntawm lub tshuab hloov khoom siv. Dab tsi tshwm sim tam sim ntawd yog qhov nyuaj thiab du cov khoom zoo li cas. Piv nrog rau polyethylene zaj duab xis, nws yuav luag zoo li ib daim ntawv nyias ntawm cov yas es tsis yog cov ntawv ntim mos.
Qhov tawv nqaij ntawd tsis tas yuav yog qhov phem. Qhov tseeb, PLA qhov tseeb thiab nruj ua rau nws muaj txiaj ntsig zoo rau qee hom ntim khoom. Ntau lub thawv ntim khoom noj uas muaj pob tshab yog tsim los ntawm PLA vim tias cov khoom zoo li huv si thiab ruaj khov.
Tab sis thaum cov yeeb yaj kiab tau ua tiav rau hauv cov qauv hloov pauv tau yooj yim, cov teeb meem ua kom pom tseeb. PLA cov yeeb yaj kiab tuaj yeem tawg yooj yim dua thaum ncab ntau dhau thaum hloov pauv lossis lub hnab tsim. Kuv nco qab ib tus kws tshaj lij piav qhia tias lawv yuav tsum tau kho cov txheej txheem ua haujlwm ob peb zaug txhawm rau tiv thaiv cov pob txha me me raws txoj kab sib khi.
Los ntawm kev pom cov khoom, qhov no yog ib qho laj thawj PLA ib leeg tsis tshua siv rau cov hnab ntim khoom yooj yim.
PBAT xav tias ze dua rau cov yas hloov tau yooj yim
Qhov xwm txheej no txawv heev nrog PBAT (polybutylene adipate terephthalate).
Thaum PBAT zaj duab xis raug tuav, nws coj ntau yam zoo li cov yas hloov tau siv rau hauv cov khoom ntim. Zaj duab xis stretches yooj yim thiab pom tau tias softer dua PLA. Qhov kev hloov pauv ntawd yog qhov tshwj xeeb tshaj yog rau cov khoom lag luam uas xav tau kom muaj sia nyob shipping thiab tuav.
Piv txwv li, compostable courier mailer hnab feem ntau cia siab rau PBAT vim hais tias cov ntaub ntawv tolerates mechanical stress zoo dua PLA.
Lwm qhov zoo dua yog tias PBAT feem ntau tuaj yeem ua tiav siv cov khoom siv uas twb tau siv los ua cov yeeb yaj kiab polyethylene. Qee cov kab extrusion tsuas yog xav tau kev hloov kho me ntsis rau qhov kub thiab txias.
Txawm li cas los xij, PBAT kuj muaj nws cov kev txwv. Cov yeeb yaj kiab ua los ntawm PBAT feem ntau yuav tsis nruj thiab tsis tshua pom tseeb dua li cov yeeb yaj kiab PLA. Hauv cov ntawv thov uas qhov tsos lossis qhov nyuaj, PBAT ib leeg yuav tsis zoo tagnrho.
Vim li cas cov converters feem ntau sib tov ob cov ntaub ntawv
Vim hais tias ob yam khoom coj txawv txawv, converters nquag muab lawv.
Lub tswv yim yog ncaj ncaj. PLA txhawb nqa cov qauv thiab nruj, thaum PBAT txhim kho kev hloov pauv. Los ntawm kev kho qhov sib piv ntawm lawv, cov neeg tsim khoom sim tsim cov yeeb yaj kiab uas coj los ze zog rau cov khoom ntim yas.
Thaum ib txoj haujlwm tsim kho kuv tau hnov txog los ntawm lub converter, engineers tau sim ntau qhov sib txawv PLA-PBAT piv rau daim ntawv thov khoom noj txom ncauj. Thaum PLA cov ntsiab lus siab, lub hnab tuav nws cov duab zoo tab sis tawg thaum lub sij hawm sib khi. Kev nce cov ntsiab lus PBAT txhim kho cov kav ntev, txawm hais tias zaj duab xis tau ua softer.
Cov hom kev lag luam no -offs yog ib yam thaum ua hauj lwm nrog biodegradable cov ntaub ntawv.
Compostable ntim feem ntau yog complex dua li nws zoo li
Lwm yam uas ua rau kuv xav tsis thoob thaum kuv xub saib mus rau hauv lub ntim ntim compostable yog qhov zoo sib xws ntawm nws cov qauv yog rau cov ntim yas.
Ntau lub hnab compostable tseem cia siab rau ntau txheej, txawm tias cov ntaub ntawv lawv tus kheej yog biodegradable. Txhua txheej ua haujlwm sib txawv.
Khoom Description
Ib qho piv txwv yooj yim yuav suav nrog:
ib txheej txheej luam tawm rau cov duab kos duab
ib txheej txheej txheej muab txhua yam muaj zog
ib txheej sab hauv tsim los rau cov cua sov sealing
Qee cov tuam txhab lag luam kuj sim nrog cov txheej txheem biodegradable uas pab txhim kho cov pa oxygen lossis noo noo. Barrier kev ua tau zoo tseem yog ib qho ntawm thaj chaw uas cov yeeb yaj kiab compostable txuas ntxiv mus.
Kev ua lag luam rau bioplastics tseem me me tab sis loj hlob
Txawm hais tias compostable plastics tau txais kev saib xyuas ntau, lawv tseem sawv cev ib feem me me ntawm kev lag luam plastics tag nrho.
Raws li European Bioplastics, ntiaj teb no muaj peev xwm tsim tau rau bioplastics yuav tsum ncav cuag ib ncig ntawm 7 lab tonnes nyob rau hauv ob peb xyoos tom ntej no. Qhov ntawd suab loj, tab sis piv nrog ntau pua lab tonnes ntawm cov pa yas uas tsim txhua xyoo, nws tseem yog ib feem me me.
Txawm li ntawd los, kev txaus siab yog kom meej meej nce. Hauv kev sib tham nrog cov neeg muab khoom ntim, kev xav tau feem ntau los ntawm cov haujlwm xws li kas fes tshwj xeeb, cov khoom noj khoom haus organic, thiab cov tuam txhab uas xav qhia txog kev ruaj khov hauv lawv cov ntim tsim.
Ib txoj hauv kev yooj yim los xav txog PLA thiab PBAT
Tom qab hnov cov engineers tham txog cov ntaub ntawv no ntau zaus, kuv tau pib piav qhia lawv yooj yim dua thaum tib neeg nug.
PLA muaj txiaj ntsig zoo thaum lub ntim zaj duab xis xav tau cov qauv thiab pom qhov pom tseeb. PBAT muaj txiaj ntsig zoo thaum cov yeeb yaj kiab xav tau kev hloov pauv thiab ua haujlwm ntev.
Tsis yog cov khoom siv daws txhua qhov teeb meem ntawm nws tus kheej. Tias yog vim li cas compostable ntim films feem ntau cia siab rau ib tug ua ke ntawm ob.
Raws li cov biodegradable polymers tshiab tau tsim, cov khoom siv no tej zaum yuav txuas ntxiv mus ntxiv. Tab sis rau tam sim no, PLA ntim thiab PBAT biodegradable yas tseem tshuav ob ntawm cov ntaub ntawv tseem ceeb uas siv thaum cov tuam txhab sim tsim cov ntim khoom ntim tau yooj yim.
FAQ
Q: Dab tsi yog qhov txawv ntawm PLA thiab PBAT?
A: PLA yog cov nroj tsuag -raws li polymer paub txog kev nruj thiab meej, thaum PBAT yog ib qho yooj yim biodegradable polyester uas muab stretch thiab toughness.
Q: Puas yog PLA thiab PBAT ob qho tib si compostable?
A: Ob qho khoom siv tuaj yeem degrade nyob rau hauv industrial composting tej yam kev mob uas kub, noo noo, thiab microbial kev ua ub no tswj.
Q: Vim li cas PLA thiab PBAT feem ntau sib xyaw ua ke?
A: Kev sib xyaw ntawm ob cov ntaub ntawv pab sib npaug qhov tawv thiab yooj yim, tsim cov yeeb yaj kiab uas tsim nyog rau kev ntim khoom.
Q: Cov khoom ntim dab tsi feem ntau siv PLA thiab PBAT?
A: Cov hnab ntim khoom ntim khoom, hnab ntim kas fes, hnab ntim khoom noj txom ncauj, thiab e- lub hnab ntim khoom xa tuaj yog qee qhov piv txwv.