Bio-raws li PP vs. Petroleum-raws li PP: Yuav Ua Li Cas Qhov Kev Ua Tau Zoo cuam tshuam rau daim ntawv thov ntim khoom noj

Polypropylene (PP) yog ib qho ntawm tsib feem ntau siv plastics, uas ua lub luag haujlwm tseem ceeb hauv kev ntim khoom noj vim nws tsis muaj tshuaj lom, tiv thaiv tshav kub thiab cov khoom siv zoo heev. Cov roj av ib txwm siv-raws li polypropylene los ntawm fossil fuels thiab ua tau raws li qhov xav tau ntim, tab sis kuj tseem ua rau muaj kev puas tsuaj thiab kev ua qias tuaj ib puag ncig. Raws li cov khoom siv txuas ntxiv mus, biobased PP BPP) tau dhau los ua cov khoom lag luam pheej hmoo nrog kev nce ntxiv ntawm kev ruaj khov. Biobased polypropylene, tsim los ntawm biomass thiab los ntawm cov txheej txheem lom neeg lossis tshuaj lom neeg hloov pauv, txo kev cia siab ntawm cov peev txheej roj av thiab muaj qhov ua tau zoo tshwj xeeb. Cov ntawv no tau txheeb xyuas qhov sib txawv ntawm cov khoom ntawm biopolypropylene thiab roj av-raws li polypropylene hais txog cov khoom siv, cov khoom siv, cov xwm txheej ntawm daim ntawv thov thiab cov txiaj ntsig ib puag ncig, thiab sib tham txog qhov cuam tshuam ntawm biopolypropylene ntawm daim ntawv thov ntim khoom noj.
1.Material Performance Comparison: Lub hauv paus ntawm kev ua tau zoo sib txawv
1.1 Raw Material Sources thiab Molecular Structures
Petroleum-raws li polypropylene yog tsim los ntawm propylene monomer tau los ntawm roj av tawg. Nws cov qauv saw molecular yog tsis tu ncua, crystallization℃siab, muaj zog txhua yam zoo thiab thermal stability. Hloov chaw, biobased PP los ntawm biomass xws li qab zib, pob kws hmoov txhuv nplej siab lossis zaub roj, uas tau hloov mus rau hauv propylene monomers los ntawm cov txheej txheem xws li hydrodeoxygenation thiab lysis, thiab tom qab ntawd polymerized. Txawm hais tias qhov kawg molecular qauv ntawm biobased PP zoo ib yam li cov roj av-raws li polypropylene, qhov sib txawv ntawm impurity cov ntsiab lus thiab molecular hnyav tis nyob rau hauv feedstock yuav ua rau hloov maj mam hloov nyob rau hauv cov khoom siv. Piv txwv li, cov molecular strands ntawm biobased PP tej zaum yuav muaj me me ntawm cov pa atoms los yog branching lug, cuam tshuam nws crystallinity thiab pob tshab.
1.2 Qhov txawv ntawm lub cev muaj zog
Thermal stability: Petroleum-raws li polypropylene feem ntau muaj qhov melting point ntawm 160 thiab 170℃thiab tuaj yeem tiv taus kub hauv qab 120 degree, ua rau nws haum rau microwave cua sov lossis retort ntim. Lub thermal stability ntawm bio-PP yog ze ze rau qhov purity ntawm nws cov khoom raw. Qee cov khoom siv biobased PP tuaj yeem hloov kho kom ua tiav qhov kev ruaj ntseg zoo ib yam li roj av raws li polypropylene, tab sis tsis hloov pauv biobased PP tuaj yeem degrade ntawm qhov kub thiab txias, ua rau txo qis hauv cov khoom siv kho tshuab.
Cov khoom siv kho tshuab: Petroleum-raws li PP muaj lub zog tensile zoo heev thiab muaj kev cuam tshuam los ua kom tau raws li cov kev xav tau ntawm cov ntim hnyav. Cov khoom siv raw ntawm biobased PP muaj kev cuam tshuam zoo rau nws cov khoom siv kho tshuab. Piv txwv li, biobased PP muab tau los ntawm cov roj zaub tej zaum yuav muaj zog dua vim nws cov qauv ceg, tab sis nws cov rigidity yog me ntsis txo. Cov khoom siv kho tshuab ntawm biobased PP tuaj yeem zoo ib yam li lossis siab dua li cov roj av-raws li cov khoom lag luam los ntawm nanoparticles.
Transparency thiab luster: Lub siab crystallinity ntawm roj av-raws li PP ua rau cov pob tshab tsis tshua muaj. Txawm li cas los xij, siab pob tshab PP (piv txwv li PP-R) tuaj yeem tsim los ntawm cov txheej txheem copolymerization random siv hauv cov fwj dej haus lossis cling zaj duab xis. Lub pob tshab ntawm bio-PP yog cuam tshuam los ntawm purity ntawm raw cov ntaub ntawv thiab kev siv technology. Qee cov khoom yuav zoo li translucent vim impurities los yog tsis sib xws crystallinity, tab sis tuaj yeem txhim kho tau zoo los ntawm kev tsom stretching lossis nucleation agents.
1.3 Qhov sib txawv ntawm cov khoom siv tshuaj
Tshuaj tiv thaiv: Petroleum-raws li PP muaj cov kua qaub zoo, alkali, ntsev thiab feem ntau cov organic solvents kuj, haum rau cov tshuaj ntim. Cov tshuaj tiv thaiv ntawm biobased PP muaj feem xyuam rau pawg polar hauv nws cov qauv molecular. Qee cov khoom lag luam yuav qis dua li cov roj av me ntsis-raws li polypropylene vim muaj cov pa oxygen- muaj cov pab pawg, tab sis qhov tsis zoo no tuaj yeem daws tau los ntawm copolymerization lossis txheej txheej txheej txheej.
Barrier yam ntxwv: Kev tiv thaiv zoo rau cov pa oxygen, dej vapor thiab tsw yog qhov tseem ceeb los ua kom lub neej txee lub neej ntim khoom noj. Petroleum-raws li PP muaj qhov cuam tshuam nruab nrab ntawm cov khoom thiab yuav tsum muaj ntau txheej txheej coextrusion lossis txheej txheej txheej txheej. Lub barrier zog ntawm biobased PP nyob ntawm qhov loj ntawm nws cov khoom siv raw. Piv txwv li, cellulosic raws li biopolypropylene muaj ntuj oxygen barrier zog, tab sis dej vapor muaj cov pa oxygen tsis zoo. Tag nrho cov teeb meem kev ua tau zoo tuaj yeem txhim kho tau zoo los ntawm nano-kev sib xyaw lossis kev hloov pauv.
2. Qhov sib txawv ntawm kev ua haujlwm: cuam tshuam rau Kev Ua Haujlwm Zoo thiab cov nqi
2.1 Kev ntsuas kub thiab ua qhov rais.
Petroleum polypropylene ua haujlwm kub ntau (180-240 degrees Celsius), zoo yaj flowability, yooj yim txhaj molding, tshuab molding los yog extruding molding. Kev ua haujlwm kub ntawm biobased PP yog txwv los ntawm thermal stability ntawm nws cov khoom siv raw, thiab qee cov khoom yuav tsum tau ua tiav ntawm qhov kub qis (160-220 degree) los tiv thaiv kev degradation. Tsis tas li ntawd, biobased biobased PP muaj ntau dua cov yaj viscosity thiab xav tau kev ua kom zoo ntawm cov ntsia hlau tsim los yog lubrication los txhim kho fluidity.
2.2 Pwm Tsim thiab Moulding voj voog
Petroleum-raws li PP muaj tus nqi qis qis (1-2%), uas ua kom yooj yim pwm tsim thiab ua kom lub voj voog molding luv. Lub shrinkage ntawm biobased PP yuav yog me ntsis siab dua li cov roj av-based polypropylene, nyob ntawm seb cov crystallinity ntawm cov khoom siv raw. Tsis tas li ntawd, qhov txias qeeb ntawm biobased PP tuaj yeem ua rau lub voj voog molding thiab nce nqi ntau lawm.
2.3 Pov tseg Recycling thiab rov siv dua
Petroleum-raws li polypropylene tuaj yeem sib xyaw nrog cov pov tseg zoo sib xws thiab rov ua dua los ntawm melting thiab repelletizing. biobased PP recycling yuav tsum xav txog nws txoj kev sib raug zoo nrog roj av-raws li polypropylene. Qee cov khoom siv biobased PP tuaj yeem rov ua dua los ntawm kev sib xyaw, tab sis cov khoom siv yuav tsum tau tswj kom tsis txhob muaj kev puas tsuaj. Tsis tas li ntawd, biodegradability ntawm polypropylene ua rau nws yooj yim dua rau microbial decomposition tom qab kev kho mob, txo cov pa phem ib puag ncig.
3. Qhov txawv ntawm daim ntawv thov scenarios: los ntawm Disposable Packaging mus rau siab -end applications
3.1 Kev ntim khoom pov tseg
Polypropylene yog dav siv nyob rau hauv ib qho - siv cov thawv ntim khoom noj, khob dej haus, hnab khw thiab lwm yam vim nws cov nqi qis thiab kev ua haujlwm ruaj khov. Biobased PP tuaj yeem ua tau raws li qhov xav tau zoo sib xws tom qab hloov kho. Piv txwv li, biobased polypropylene uas muaj oxidatively degradable additives yuav maj mam tawg nyob rau hauv lub ntuj puag ncig, txo cov dawb paug. Tsis tas li ntawd, cov khoom siv txuas ntxiv dua tshiab ntawm biobased PP yog nyob rau hauv txoj kab nrog cov qauv kev txhim kho kom ruaj khov thiab tau nrov npe nrog cov tswv lag luam.
3.2 High-Cov Ntim Khoom Noj Kawg
Petroleum-raws li polypropylene txuas ntxiv ua tus thawj tswj hwm qhov chaw muaj kev tiv thaiv siab, tiv thaiv tshav kub lossis pob tshab. Piv txwv li, multilayer co-extruded polypropylene films yuav siv tau nyob rau hauv cov nqaij ntim khoom kom zoo thaiv cov pa oxygen thiab dej vapor, thaum pob tshab polypropylene fwj yuav siv tau nyob rau hauv cov kua txiv hmab txiv ntoo los yog condiment ntim los ua cov khoom zoo nkauj. Biobased biobased PP maj mam nkag mus rau qib siab -kawg kev lag luam los ntawm nano- cov khoom sib xyaw lossis kev hloov kho sib xyaw. Piv txwv li, bio-raws li polypropylene zaj duab xis uas muaj nano- av nplaum muaj cov pa oxygen zoo heev thiab tsim nyog rau ntim kas fes taum lossis txiv ntoo. Copolymer hloov kho copolymer{10}} hloov kho biobased PP tuaj yeem tiv taus qhov kub txog li 120 degree, ua rau nws haum rau retort hnab los yog tus kheej- cua sov ntim khoom noj.
3.3 Kev ntim khoom tshwj xeeb
Lub ntuj tsim ntawm biobased PP muab qhov tshwj xeeb zoo rau kev ntim khoom tshwj xeeb. biobased PP los ntawm cov hmoov txhuv nplej siab, piv txwv li, tuaj yeem sib xyaw nrog cov tshuaj tua kab mob los yog cov tshuaj tua kab mob antioxidant kom ntev lub txee lub neej ntawm cov khoom noj. Biobased PP films uas muaj cov photosensitizers tswj lawv lub teeb transmittance raws li kev siv ntawm lub teeb thiab tiv thaiv cov zaub mov photosensitive, xws li mis hmoov, los ntawm UV puas. Tsis tas li ntawd, biodegradability ntawm biobased PP ua rau nws yog ib tus neeg sib tw zoo rau kev ntim khoom ntim xws li cov hnab khib nyiab los yog ua liaj ua teb mulch films.
4. Environmental efficiency thiab Economic Viability: Qhov Ob -Edged Sword rau kev txhim kho kom ruaj khov
4.1 Carbon Footprint thiab Kev Siv Khoom Siv
Petroleum-raws li polypropylene ntau lawm vam khom rau fossil fuels, emissions txog 3.1 tons ntawm carbon dioxide ib tuj ntawm cov khoom thiab siv tsis tau -resources. Biomass-raws li polypropylene kho carbon dioxide los ntawm photosynthesis, carbon emissions emissions ntau tshaj 50% nyob rau hauv lub neej voj voog piv rau roj av-raws li polypropylene. Tsis tas li ntawd, biobased PP tuaj yeem muab tau los ntawm kev ua liaj ua teb pov tseg lossis tsis yog - cov qoob loo zaub mov, yog li txo qis kev hem thawj rau kev ruaj ntseg zaub mov.
4.2 Degradability thiab pov tseg
Petroleum-raws li polypropylene yog ib qho nyuaj rau degrade nyob rau hauv tej yam ntuj tso ib puag ncig thiab yuav tsum tau incineration los yog landfill kev kho mob, tej zaum yuav ua rau lwm yam kab mob. Biodegradability ntawm polypropylene nyob ntawm nws cov khoom noj thiab cov txheej txheem ua. Nyob rau hauv kev lag luam composting tej yam kev mob, ib co khoom yuav decomposed kiag li nyob rau hauv rau lub hlis, txo cov pov tseg. Txawm li cas los xij, biobased PP yuav tsum muaj cov xwm txheej tshwj xeeb (xws li qhov kub thiab txias, av noo thiab microbial cov zej zog) thiab tuaj yeem ua rau qeeb qeeb hauv ib puag ncig ntuj. Cov ntawv pov thawj Standardized (xws li OK Compost thiab EN13432) yog qhov tsim nyog los xyuas kom meej nws cov txiaj ntsig ib puag ncig.
4.3 Tus Nqi thiab Kev Ua Lag Luam Txais
Polypropylene los ntawm roj av dominates lub lag luam nrog ib tug paub tab txheej txheem ntau lawm thiab kuj tsis tshua muaj nqi (kwv yees li 12, 000 -15,000 yuan / tonne). biobased PP muaj cov nqi raw khoom ntau dua (kwv yees li $ 18,000 txog $ 22,000 ib tonne), kev ua haujlwm nyuaj dua thiab cov khoom sib tw tsawg dua. Txawm li cas los xij, nrog kev txhim kho thev naus laus zis thiab kev lag luam ntawm nplai, tus nqi ntawm biobased PP yog maj mam txo. biobased PP, piv txwv li, tuaj yeem txo cov nqi tsim khoom ntau dua 30% los ntawm kev ua kom zoo dua cov txheej txheem fermentation lossis siv cov khoom siv qis qis, xws li straw. Tsis tas li ntawd, kev txhawb nqa txoj cai (xws li cov se carbon thiab nyiaj pab) thiab kev paub txog ib puag ncig ntawm cov neeg siv khoom yuav ua rau kev lag luam xav tau rau biobased PP.
V. Cov lus xaus thiab kev pom
Qhov kev ua tau zoo sib txawv ntawm biopolypropylene thiab roj av-raws li polypropylene yog vim qhov sib txawv ntawm cov khoom noj khoom haus, cov qauv molecular, kev ua, thiab lwm yam, uas cuam tshuam ncaj qha rau daim ntawv thov scenarios thiab ib puag ncig cov txiaj ntsig hauv kev lag luam ntim khoom noj. Txawm hais tias biobased PP tseem ntsib cov teeb meem ntawm tus nqi, thermal stability thiab kev ua haujlwm zoo, nws cov khoom siv dua tshiab, degradable thiab qis dua - carbon cov khoom yog nyob rau hauv txoj kab nrog kev txhim kho kom ruaj khov. Nyob rau yav tom ntej, nrog kev ua tiav hauv cov khoom siv hloov kho thev naus laus zis xws li nanocomposites, kev sib xyaw, thiab lwm yam, thiab txo tus nqi ntxiv, biobased PP yuav tsum maj mam hloov roj av-raws li polypropylene hauv ib zaug- siv ntim, siab - ntim khoom kawg, thiab tshwj xeeb ua haujlwm ntim kev lag luam.