Vim li cas Koj Lub Hnab Eco Tom ntej yuav tsum yog PLA PBAT Blend

Dab tsi feem ntau buyers tau yuam kev

Ob peb lub lis piam dhau los, ib lub khw muag khoom lag luam tus neeg muag khoom tau hu rau peb pab neeg. Lawv tau nrhiav cov hnab ntim khoom noj khoom haus tau ob xyoos, tab sis tseem khiav mus rau tib qhov teeb meem: cov hnab ntim tau tawg hauv qhov txias txias lossis ncab tawm ntawm cov khoom raws li cov khoom noj khoom haus ib txwm muaj. Thaum peb saib lawv cov specs, nws muab tawm tias lawv tau xaj cov hnab PLA ncaj nraim yam tsis muaj PBAT tivthaiv. Qhov kev xaiv ib qho khoom siv tau raug nqi rau lawv 15-20% hauv cov khoom xa rov qab.

Qhov no tsis yog ib zaj dab neeg txawv txawv. Kev lag luam hnab biodegradable ntaus $ 3.7 nphom hauv 2024 thiab tau kwv yees kom ncav cuag $ 6.8 nphom los ntawm 2033. Tab sis ntau tus neeg yuav khoom tseem tab tom txiav txim siab cov khoom siv raws li cov ntaub ntawv tsis tiav, thiab nws tau tshwm sim hauv lawv cov kab hauv qab.

Yog li cia peb tham txog dab tsi ua rau lub hnab compostable ua haujlwm rau kev lag luam siv - thiab yog vim li casPLA PBAT Blendtau dhau los ua - los daws cov hom lag luam uas tsis tuaj yeem them tsis tau cov khoom lag luam.

Qhov Teebmeem Teebmeem: PLA thiab PBAT Txhua Tus Muaj Kev Txwv

Yog tias koj tau saib cov ntaub ntawv biodegradable txhua, tej zaum koj yuav ntsib ob qhov sib cais.

PLA (polylactic acid) yog cov nroj tsuag - muab tau los, feem ntau yog los ntawm pob kws los yog qab zib hmoov nplej. Nws tau zoo heevPLA tawv- peb tab tom tham txog Young's modulus nyob ib ncig ntawm 2,900 MPa, uas yog piv rau qee cov khoom siv yas. Nws luam tau zoo, zoo li huv si, thiab biodegrades nyob rau hauv industrial composting tej yam kev mob. Tus ntes? PLA ntshiab yog nkig. Elongation ntawm so nyob ib ncig ntawm 6-8%, uas txhais tau hais tias nws tawg es tsis ncab thaum ntxhov siab.

PBAT (polybutylene adipate-co-terephthalate) yog zaj dab neeg rov qab. Nws yog roj av- muab biodegradable polyester nrog tshwj xeebPBAT toughness. Elongation thaum so tuaj yeem ncav cuag 500-900%, thiab nws ua haujlwm txias txias yam tsis muaj nkig. Tab sis ntawm nws tus kheej, PBAT yog qhov hloov pauv dhau rau cov ntawv thov kev teeb tsa. Young's modulus poob rau ib ncig ntawm 136 MPa - tsis txaus rigidity los tuav cov duab hauv qab load.

Nov yog qhov no txhais li cas hauv kev xyaum:

* Nrog compatibilizer, elongation tuaj yeem ncav cuag 580% thaum tuav lub zog tensile siab tshaj 40 MPa.

Cov ntaub ntawv qhia ib zaj dab neeg meej: tsis yog cov khoom siv ib leeg ua tau raws li qhov xav tau ntawm daim ntawv thov lub hnab lag luam.

Yuav Ua Li Cas Blending Tiag Ua Haujlwm (tsis muaj Chemistry Lecture)

CovCompatibility ntawm PLA thiab PBATtsis yog automatic. Ob lub polymers no muaj qhov sib txawv ntawm qhov sib txawv - PLA nyob ib puag ncig 10.1 (cal/cm³)^0.5 thaum PBAT yog kwv yees li 22.95. Hauv cov ntsiab lus, lawv tsis sib xyaw ua ke ntawm qib molecular. Thaum koj yaj- sib tov lawv yam tsis muaj kev ua haujlwm ntxiv, koj tau txais ob lub- theem system uas PBAT tsim cov tee dej tawg hauv PLA matrix.

Qhov kev sib cais theem no tsis tas yuav phem. Qhov tseeb, nws yog qhov tso cai rau cov khoom sib xyaw ua ke ob qho tib si cov khoom siv. PBAT domains ua raws li kev ntxhov siab absorbers - thaum lub hnab ntsib ib qho kev thauj khoom, cov khoom hloov tau yooj yim dissipate lub zog uas yuav ua rau lub zog PLA matrix tawg.

Tab sis ntawm no yog qhov uas formulation tseem ceeb. Kev tshawb fawb luam tawm hauvPolymerPhau ntawv Journal pom tias kev sib xyaw ua ke cuam tshuam rau kev ua haujlwm tau zoo:

80/20 PLA/PBAT: Khaws feem ntau ntawm PLA qhov nruj tab sis txwv kev txhim kho yooj yim

70/30 PLA/PBAT: Zoo sib npaug - tensile zog nyob ib ncig ntawm 31 MPa nrog lub ntsiab lus elongation nce

60/40 PLA/PBAT: Qhov chaw qab zib rau feem ntau cov ntawv thov lub hnab - nce mus txog 40+ MPa tensile lub zog nrog elongation mus txog 580% thaum sib raug zoo

50/50 thiab hauv qab no: PBAT- tus cwj pwm tseem ceeb; siab yooj tab sis txo cov qauv kev ncaj ncees

Cov neeg tsim khoom lag luam feem ntau lub hom phiaj yog 60/40 txog 70/30 ntau yam. Nws yog qhov chaw koj tau txausPBAT toughnesskom muaj sia nyob tiag-kev tuav hauv ntiaj teb yam tsis muaj kev txiPLA tawvxav tau los tswj lub hnab zoo.

Cov lus nug Compatibilizer

Raw blending tsuas tau txais koj ib feem ntawm qhov ntawd. Qhov kev ua tau zoo tiag tiag yog los ntawm kev sib xyaw ua ke - siv cov khoom ntxiv uas txhim kho adhesion ntawm PLA thiab PBAT theem.

Txoj hauv kev zoo tshaj plaws yog siv cov saw hlau txuas nrog cov epoxy pawg (cov piv txwv ua lag luam suav nrog Joncryl ADR). Cov molecules no hnov ​​​​mob nrog lub davhlau ya nyob twg carboxyl thiab hydroxyl pawg ntawm PLA thiab PBAT chains, tsim kom muaj ib tug choj ntawm lub interface.

Qhov no ua dab tsi hauv cov lej? Ib qho kev kawm hauvComposites Part B: Engineeringqhia:

Uncompatibilized 60/40 PLA ​​/ PBAT: elongation ntawm so ~ 17.7%

Tib qhov sib xyaw nrog 0.75% compatibilizer: elongation dhia mus rau579.9%Thaum lub zog tensile tseem nyob ntawm 40.8 MPa

Qhov ntawd yog 75x kev txhim kho hauv elongation yam tsis muaj kev txi lub zog. Lub compatibilizer kuj txo qhov luaj li cas ntawm PBAT domains nyob rau hauv lub blend, tsim ib tug finer morphology nrog zoo dua kev ntxhov siab hloov ntawm theem.

Kev ua tau zoo tiag tiag hauv kev lag luam

Lab tus lej muaj txiaj ntsig zoo, tab sis qhov tseem ceeb yog tias cov hnab no ua haujlwm li cas hauv cov saw hlau. Peb pab neeg ua haujlwm engineering tau taug qab ntau qhov xwm txheej xa mus, thiab ob peb tus qauv sawv tawm.

Txias Chain Performance

Qhov no yog qhov twgPLA PBAT BlendCov ntaub ntawv qhia lawv qhov zoo tshaj plaws ntawm PLA ntshiab. Peb tau pom cov ntawv thov cia txias - cov khoom siv tub yees, ntim khoom noj khov - qhov twg cov hnab PLA ntshiab pom pom tawg tom qab 72 teev ntawm 4 degree. Cov hnab ntim sib piv sib piv tau tswj kev ncaj ncees los ntawm 30-hnub kev sim cia.

Cov txheej txheem ntawm no cuam tshuam rau iav hloov pauv kub (Tg). PLA's Tg zaum nyob ib ncig ntawm 55-60 degree, tab sis ntawm qhov kub thiab txias, cov khoom yuav ua rau iav thiab nkig. PBAT lub xub ntiag hloov pauv tus cwj pwm hloov pauv tau zoo, tswj xyuas qee qhov kev txav mus los txawm tias nyob hauv cov tub yees txias.

Load Test

Rau cov khw muag khoom lub hnab ntim khoom, qhov kev sim tseem ceeb yog kev txhawb nqa. Kev lag luam tus qauv ntsuas cov txheej txheem feem ntau ntsuas:

Max load ua ntej tsis ua hauj lwm

Elongation nyob rau hauv sustained 5kg load tshaj 24 teev

Kov lub zog txuas

Ib tug raug formulatedPLA PBAT Blendntawm 60/40 piv nrog compatibilizer feem ntau tuav 8-12kg loads yam tsis ua hauj lwm, nrog kov rub-tawm kuj txuam los yog tshaj HDPE hnab khw.

Composting Cwj Pwm

Ob qho khoom siv tau ntawv pov thawj compostable raws li EN 13432 thiab ASTM D6400 tus qauv. Txawm li cas los xij, tus nqi degradation txawv. PLA tawg sai dua nyob rau hauv cov thermophilic (siab-kub) kev lag luam composting tej yam kev mob, thaum PBAT yuav xav tau ntev dua. Kev sib xyaw ua ke feem ntau ua tiav tag nrho degradation hauv 90-180 hnub hauv cov chaw muaj ntawv pov thawj.

Qhov no txhais tau li cas rau B2B Kev Muag Khoom

Yog tias koj tab tom nrhiav lub hnab compostable ntawm ntim, sib xyaw cov ntsiab lus tseem ceeb tshaj li feem ntau pawg neeg yuav khoom paub. Qee qhov kev txiav txim siab:

Tsis txhob Yuav ntawm PLA Cov Ntsiab Lus Ib leeg

PLA feem pua ​​​​siab dua tsis tau txhais tias lub hnab zoo dua. Ib qho 90/10 PLA/PBAT sib xyaw yuav zoo dua rau ntawm daim ntawv rau bio-raws li cov ntsiab lus thov, tab sis nws yuav tsis muaj sia nyob rau kev tuav cov hlua txias. Sib piv qhov sib tov rau koj cov ntaub ntawv siv tiag tiag.

Nug Txog Kev Sib Koom Tes

Tsis yog txhua tus neeg muag khoom siv cov saw txuas ntxiv hauv lawv cov qauv. Qhov sib txawv ntawm cov tshuab ua haujlwm yog qhov tseem ceeb txaus uas nws tsim nyog lees paub thaum tsim nyog.

Txheeb xyuas cov qauv ntsuas

Cov neeg muag khoom muaj koob npe yuav tsum muab cov ntaub ntawv xeem rau:

Tensile zog (lub zog, modulus, elongation)

Muab tso rau ntawm qhov ntsuas kub ntawm lub hom phiaj

Daim ntawv pov thawj Compostability (BPI, TÜV, lossis sib npaug)

Xav txog Tag Nrho Tus Nqi Zoo

Tus nqi khoom kim dua me ntsis rau qhov zoo- tsimPLA PBAT Blendfeem ntau them rov qab los ntawm kev txo qis rov qab, tsawg dua cov neeg siv khoom tsis txaus siab, thiab kev nkag siab zoo ntawm cov khoom lag luam. Lub khw muag khoom uas peb tau hais thaum pib? Tom qab hloov mus rau qhov sib xyaw kom raug, lawv cov khoom xa rov qab poob los ntawm 15-20% mus rau qis dua 3%.

Qhov twg Kev Lag Luam Mus Los

Lub hnab biodegradable ntu yog hloov zuj zus sai. Ob peb lub caij nyoog tsim nyog saib:

Starch-Based Hybrid Blends

Qee lub tuam txhab tau ntxiv cov hmoov txhuv nplej siab thermoplastic (TPS) ua ib feem peb. Qhov no tuaj yeem txo tus nqi thiab txhim kho bio-raws li cov ntsiab lus, tab sis TPS ua rau kom muaj dej rhiab heev. PBAT / TPS blends tam sim no tuav tshaj 10% kev lag luam sib koom, feem ntau hauv cov yeeb yaj kiab mulch thiab cov thoob khib nyiab uas tsis muaj dej tsis zoo.

Bio-Based PBAT Kev Txhim Kho

Ib txwm PBAT siv roj av- muab cov khoom noj. Ob peb cov neeg tsim khoom tam sim no ua haujlwm ntawm bio-raws li cov qauv siv txuas dua tshiab butanediol thiab adipic acid. Qhov no yuav hais txog ib qho kev thuam ntawm PLA/PBAT sib tov - tias PBAT tivthaiv tsis yog bio-raws li.

Txhim kho Composting Infrastructure

Qhov kev txwv ntawm cov hnab ntim biodegradable yeej ib txwm tau nkag mus rau hauv kev lag luam composting. Tsuas yog kwv yees li 27% ntawm cov neeg Asmeskas tam sim no tau nkag mus rau cov khoom noj khib nyiab khib nyiab. Raws li qhov kev tsim kho vaj tse no nthuav dav, lub sijhawm ua lag luam rau cov hnab ntim compostable kom loj hlob zoo sib xws.

Nrhiav Tus Neeg Muab Khoom Zoo

Cov khoom xaiv tsuas yog ib nrab ntawm qhov sib npaug. Kev tswj hwm kev tsim khoom zoo, kev tsim qauv zoo ib yam, thiab cov khoom siv txhim khu kev qha yog qhov tseem ceeb sib npaug rau kev lag luam ua tiav.

Thaum peb ua haujlwm nrog cov neeg siv khoom ntawm eco- tej yaam num hauv lub hnab ua phooj ywg, peb feem ntau soj ntsuam ntau yam ntawm cov khoom siv thiab kev tsim kho kom pom qhov sib npaug ntawm kev ua tau zoo, nqi, thiab cov ntawv pov thawj ruaj khov. CovPLA PBAT Blendtsis yog ib txwm teb - rau qee daim ntawv thov, siv PET lossis cov paj rwb organic ua rau kev nkag siab ntau dua - tab sis nws tau dhau los ua peb cov lus pom zoo rau cov hnab ntim khoom uas yuav tsum tau ua hauv kev lag luam tiag tiag.

Yog tias koj tab tom ntsuas biodegradable hnab xaiv rau koj lub lag luam,MPmuaj qhov pib qhov tseem ceeb. Peb pab neeg tsom mus rau kev muab cov kev daws teeb meem OEM nrog qhov zoo ib yam thoob plaws kev tsim khoom ua haujlwm - hom kev ntseeg siab uas tseem ceeb thaum koj lub koob npe nrov ntawm kab.

Cov lus pom zoo: Cov lus nug tseem ceeb los nug cov neeg muag khoom, tus chij liab los saib xyuas, thiab yuav ua li cas los tsim cov kev xeem tsim nyog rau koj qhov kev thov tshwj xeeb.

Kab hauv qab

CovPLA PBAT Blendmuaj tshwm sim vim hais tias tsis yog polymer ib leeg tuaj yeem ua tau raws li lub hnab lag luam.PLA tawvmuab cov qauv thiab rigidity.PBAT toughnessmuab qhov hloov tau yooj yim thiab cuam tshuam rau qhov xav tau rau -lub ntiaj teb tuav. Kev sib raug zoo tsim nyog txuas qhov sib txawv ntawm ob theem no, tsim kom muaj cov khoom siv uas ua tau zoo tshaj plaws ntawm ob qho tib si.

Rau cov neeg yuav khoom B2B, qhov kev coj ua ncaj ncees yog ncaj qha: tsis txhob kho cov hnab ntim biodegradable raws li cov khoom lag luam uas tus nqi tsuas yog hloov pauv. Kev sib xyaw ua ke, kev sib xyaw ua ke, thiab kev tsim khoom zoo tag nrho cuam tshuam qhov kawg - siv kev ua haujlwm. Ib qhov dej- qhiaPLA PBAT Blendlos ntawm tus neeg muag khoom ntseeg siab feem ntau raug nqi 10-15% ntau dua li qhov pheej yig tshaj lwm txoj hauv kev - tab sis tus nqi them ntawd ploj mus sai sai thaum koj ua rau txo qis rov qab, kev txaus siab rau cov neeg siv khoom zoo dua, thiab qis dua qhov kev pheej hmoo ntawm kev txhawb nqa kev thov raug teeb meem.

CovCompatibility ntawm PLA thiab PBATtsis zoo tag nrho, tab sis nws zoo txaus. Thiab nrog kev tsim kom raug, cov khoom siv tau muab tus nqi tiag tiag rau cov hom lag luam uas tau cog lus los txo lawv cov hneev taw ib puag ncig yam tsis muaj kev cuam tshuam rau cov khoom zoo.

Cov ntaub ntawv

European Bioplastics. (2022).Bioplastics lag luam cov ntaub ntawv 2022. [Industry tsab ntawv ceeb toom ntawm cov ntaub ntawv muaj peev xwm ntau lawm]

Peng, Y., et al. (2024). "Biodegradability ntawm PBAT / PLA coated ntawv thiab bioplastic hnab nyob rau hauv anaerobic digestion."Kev Tswj Pov Hwm, 174, 218. [ScienceDirect]

Cai, K., et al. (2024). "Kev npaj ntawm biodegradable PLA / PBAT blends nrog sib npaug toughness thiab lub zog los ntawm dynamic vulcanization txheej txheem."Polymer. [ScienceDirect]

Grand View Research. (2024).Compostable & Biodegradable Refuse Bags Market Report. [PLA ntu ntawm 70.31% kev lag luam sib koom hauv 2023]

PMC. (2020). "Kev txhim kho ntawm Eco-Sustainable PBAT-Based Blown Films thiab Performance Analysis for Food Packaging Applications."MDPI Polymer. [PMC7730826]

Itabana, M. (2024). "Poly (Butylene Adipate-Co-Terephthalate) (PBAT) - Raws li Biocomposites: Kev Ntsuam Xyuas Kom Zoo."Macromolecular Materials thiab Engineering. [Wiley Online Library]