Khoom Siv Khoom thiab PBAT cov khoom rau cov khoom noj ntim khoom noj

Kev siv thiab cov txiaj ntsig ntawm PLA, PBAT, thiab lwm cov ntaub ntawv biodegradable hauv cov thawv khoom noj

Nrog rau qhov kev thov nce zuj zus rau kev siv lub ntim ruaj khov, biodegradable cov ntaub ntawv zoo li cov pla (polybutylene adipate terephthalate) tau txais cov muaj koob npe hauv kev lag luam khoom noj. Cov ntaub ntawv no muaj ib txoj kev hloov kho hauv eco-phooj ywg rau cov khoom siv tshuaj ntsuab, ua rau lawv xaiv zoo rauCov Khoom Noj Mov Noj Khoom Noj, Pluas Mov Npaj Noj Noj Mov, thiabCov Khoom Noj Khoom Noj Khoom Noj Rov Taurau ntau yam kev siv. Tab sis dab tsi xyov yog pla thiab pbat, thiab lawv yuav sib piv li cas rau cov pa uas muaj pa? Cia peb tawg nws.

Dab tsi yog pla thiab pbat?

PLA (Polylactic Acid)yog biodegradable yas muab los ntawm cov chaw ntuj xws li pob kws lossis kab tsib. Txuj ci, cov ntaub ntawv txiag, lossis cov duab acid, yog cov khoom siv biodacradable ua los ntawm cov hmoov txhuv nplej siab xws li cov pob kws. Cov khoom qab zib no undergoes hydrolys kom tau txais cov piam thaj, uas yog tom qab ntawd yog cov kab mob tshwj xeeb los tsim cov roj ntsha siab lactic acid. Thaum kawg, los ntawm cov tshuaj synthesis, nws synthesizes pla nrog qee yam hnyav molecular. Nws feem ntau yog siv nyob rau hauv cov khoom noj ntim khoom vim tias nws zoo li cov yas ua ke tab sis zom kom sai rau hauv cov kab ke.

Rau cov pla, zoo thermal ruaj khov, kev ntsuas kub ntawm 170-230} degree, kev tshuaj ntxuav tes, kev txhaj tshuaj, tshuab tshuab moulding, etc.
Zoo heev biocompatibility, zoo tshuaj tua kab mob thiab cov tshuaj tiv thaiv kab mob.
Biodegradable, tuaj yeem ua tiav los ntawm cov kab mob me ntawm cov xwm txheej tom qab siv, tsim cov pa roj carbon dioxide thiab dej tsis muaj kuab.
PBAT (Polybutylene adipis TereFthalate)Puas yog lwm tus biodegradable polymer, tab sis tsis zoo li pla, nws yog hloov tau thiab tuaj yeem hloov tau txawm tias nyob hauv tsev nplooj lwg ib puag ncig. PBAT feem ntau xyaw nrog cov ntaub los txhim kho durability thaum tswj biodegradabe. PBat yog cov khoom siv polyester, cuam tshuam rau petrochemical-based biodegradable plastics. Nws tau yooj yim heev yooj yim thiab kev ua kom muaj zog, feem ntau tov nrog lwm cov ntaub ntawv biodegradable los txhim kho cov khoom ua haujlwm tag nrho ntawm cov khoom siv. PBAT muaj cov cua sov tsis kam thiab tuaj yeem siv rau hauv ntau qhov kub. Nws zoo zoo thiab ductility ua nws haum rau kev ua rau cov yeeb yaj kiab thiab cov khoom siv hloov tau.
Ua ke, PLA thiab PBat tsim cov kev daws teeb meem uas muaj ob lub zog thiab kev ruaj ntseg, ua rau lawv muaj zog rau cov zaub mov noj mov thiab noj mov prepos noj su.

Sib piv ntawm pla thiab pbat

• Khoom Raw Khoom Siv:PLA yog los ntawm qhov hloov tshiab ntxiv dua, PBat yog los ntawm cov roj av cov peev txheej.
• Lub cev lub cev:PLA muaj siab dua Melting taw tes thiab lub khob hloov cua kub, pbat tau qis melting point thiab kev hloov pauv kub thiab txias; Sta yog qhov nyuaj thiab muaj qis dua ntawm kev tawg, pbat yog softer thiab tau ntau dua elongation
• Kev Ua Tau Zoo:PLA muaj kev ua haujlwm zoo, tuaj yeem siv ntau txoj kev ua tiav, PBat kuj muaj kev ua haujlwm zoo, tab sis ntau tsim nyog rau kev ua rau cov khoom siv yooj yim xws li zaj duab xis
• Biodegradability:Ob leeg yog biodegradable, tab sis pla yuav txwv tsis tau sai dua nyob rau qee yam.
• Chaw Thov:PLA feem ntau siv nyob rau hauv cov zaub mov ntim, cov ntawv sau, cov ntawv nyeem, nplooj ntawv nplooj lwg, cov thawv nplooj lwg, etc.

Qhov zoo ntawm kev siv PLA thiab PBAT hauv cov khoom ntim khoom noj

• Eco-phooj ywg thiab biodegradable

Tsis zoo ib txwm muaj plastics uas tuaj yeem siv ntau pua xyoo los ua kom tsis txaus siab, pla thiab pbat tawg nrawm dua, tshwj xeeb tshaj yog nyob rau ib puag ncig nplooj lwg. Qhov no pab kom txo cov yas khib nyiab thiab txo qis ib puag ncig ib puag ncig.

• Ua los ntawm cov khoom siv tshiab

PLA muab tau los ntawm cov chaw cog ntoo xws li pob kws lossis kab tseem ceeb, ua nws lwm txoj kev hloov pauv hloov tshiab rau cov roj av. PBAT, txawm tias muaj cov hluavtaws ib nrab, yog tsim rau biodegradity thiab txo kev cia siab rau cov fossil ruels.

• Muaj kev nyab xeeb rau cov zaub mov sib cuag

PLA thiab PBAT-based cov khoom noj khoom noj khoom noj khoom noj khoom haus tsis pub muaj cov tshuaj phem zoo li BPA, ua kom muaj kev nyab xeeb rau cov neeg siv khoom. Ntau tus neeg lub thawv npe tau ntsib cov qauv kev nyab xeeb thoob ntiaj teb.

• Check thiab versatile

Thaum ntxov biodegradable plastics tau yooj yim, niaj hnub pla thiab pbat pla thiab pbat pla tau txhim kho lub zog, ua rau lawv nqa cov zaub mov txias thiab ua kom muaj zog. Lawv ua haujlwm zoo liCov Khoom Noj Khoom Noj Khoom Noj Rov Taurau kev siv luv luv ua ntej pov tseg.

• Compostable khib tswj

Ntau cov PLA thiab PBat ntim yog kev sib txuas ua ke, lub ntsiab lus lawv tsoo rau hauv cov ntaub ntawv organic yam tsis muaj cov tshuaj lom. Qee cov khoom pbat-raws li cov khoom lag luam tuaj yeem cuam tshuam hauv tsev nplooj lwg teeb tsa, ua kom pov tseg yooj yim dua.

Cov kev sib tw ntawm kev siv PLA thiab PBAT hauv cov khoom noj ntim khoom

• Nplooj Laij Cov Khoom Siv Hluav Taws Xob

PLA thiab PBat xav tau kev muaj kev muaj tshuab kom ua rau muaj txiaj ntsig zoo. Hauv cov cheeb tsam tsis muaj chaw, lawv yuav tsis tawg raws li npaj siab.

• Ze Cov Nqi Ntau Lawm

Vim tias Pla thiab PBat yog tsim los ntawm cov peev txheej tshiab dua tshiab, lawv cov nqi tsim khoom tam sim no siab dua ib txwm muaj plastics. Txawm li cas los xij, raws li kev thov nce, nqi yuav tsum tau txo qis.

• Thaum Tshav Kub Kub

PLA muaj qhov qis dua kub tsis kam ua rau cov tshuaj huab cua ib yam, ua rau nws tsis haum rau cov zaub mov kub heev. PBat sib xyaw pab txhim kho kev hloov pauv tau, tab sis cov plastics ib txwm nyiam pp (polypropylene) tseem ua tau zoo dua thaum muaj kub.

Lub neej tom ntej ntawm biodegradable zaub mov ntim khoom

Raws li Tsoom Fwv thiab Kev Lag Luam Saib Xyuas Ntim Ntim Ntim, Pla thiab PBat tau dhau los ua cov ntsiab lus tseem ceeb hauv kev lag luam khoom noj khoom haus. Ntau lub khw muag khoom noj khoom noj khoom haus, thiab cov kev pabcuam zaub mov xa khoom noj khoom haus cov thawv zaub mov thiab noj mov prepers noj su.
Kev nrhav hauv cov khoom kev tshawb fawb kuj tseem txhim kho lub zog, kub ua hauj, thiab compostability ntawm cov khoom no. Qee cov tuam txhab tau txhim kho cov kev daws teeb meem uas ua ke pla, thiab ntuj fibers los tsim cov khoom noj khoom haus zoo rau ntau yam kev siv ua ntej composting.
Nrog cov khoom siv khib nyiab zoo dua thiab nce cov neeg siv khoom siv, biodegradable zaub mov ntim yuav sai sai sai no cov kev xaiv yas tsoos.

Qhov twg yuav biodegradable zaub mov ntim khoom noj?

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Ntawv Sawv cev

1. Zhao, L., & Wang, Y. (2022). Biodegradable ntim ntaub ntawv: ib qho yav tom ntej yav tom ntej rau cov khoom noj ntim khoom noj. Phau ntawv Journal ntawm cov zaub mov science & ntim, 45 (3), 134-150.
2. Smith, J., & xim av, K. (2021). Lub luag haujlwm ntawm pla thiab pbat hauv kev txo cov khib nyiab. Kev Ntsuas Cov Tshuab Ntim Khoom Siv, 38 (2), {3}}.
3. Davis, R., & Kim, S. (2020). Nrhav hauv cov zaub mov ua kom muaj zog ntim khoom. Cov ntawv xov xwm thoob ntiaj teb ntawm cov khoom lag luam ntim khoom, 27 (4), 210-225.
4. Lee, M., & Zhao, Y. (2019). Muab piv rau biodegradable thiab cov tsoos accasics hauv cov khoom noj ntim khoom noj. Sciencement Cheeb Tsam Kev Tshawb Fawb & Ntim, 19 (3), 87-102.