Nyob rau hauv xyoo tas los no, kev hais lus ntawm cov khoom siv ruaj khov tau txais lub zog tsis tau muaj dua, uas ua rau muaj kev paub txog kev loj hlob ntawm cov txiaj ntsig ecological cuam tshuam nrog cov khoom siv niaj hnub. Biodegradable cov ntaub ntawv tau tshwm sim los ua ib lub teeb pom kev zoo ntawm kev cia siab, embodying lub ethos ntawm ib ncig kev lag luam thiab lub luag hauj lwm pab kev siv.
1. PHA
Polyhydroxyalkanoates (PHA) yog biodegradable polymers synthesized los ntawm cov kab mob, feem ntau cov kab mob, nyob rau hauv tej yam kev mob. Ua los ntawm hydroxyalkanoic acid monomers, PHA yog qhov tseem ceeb rau nws cov biodegradability, txuas ntxiv mus los ntawm cov nroj tsuag qab zib, thiab ntau yam khoom siv. Nrog rau cov ntawv thov xws li ntim khoom mus rau cov khoom siv kho mob, PHA sawv cev rau kev cog lus eco-phooj ywg lwm txoj rau cov khoom siv yas, txawm hais tias tab tom ntsib cov teeb meem tsis tu ncua hauv kev siv nyiaj txiag thiab kev tsim khoom loj.
2. PLA
Polylactic Acid (PLA) yog biodegradable thiab bioactive thermoplastic muab los ntawm cov khoom siv txuas ntxiv dua tshiab xws li pob kws hmoov nplej los yog qab zib. Paub txog nws cov pob tshab thiab crystalline xwm, PLA nthuav tawm cov khoom siv tau zoo. Siv dav hauv ntau daim ntawv thov, suav nrog ntim khoom, textiles, thiab biomedical li, PLA ua kev zoo siab rau nws cov biocompatibility thiab muaj peev xwm los txo cov kev cuam tshuam ib puag ncig. Raws li kev hloov pauv mus rau cov khoom siv niaj hnub, PLA ua raws li qhov tseem ceeb ntawm cov khoom siv hauv eco-phooj ywg nyob rau hauv ntau industries.Production txheej txheem ntawm polylactic acid yog dawb los ntawm cov pa phem thiab cov khoom yog biodegradable. Nws paub txog lub voj voog hauv qhov xwm txheej thiab yog cov khoom siv polymer ntsuab.
3.Cellulose
Cellulose, muab tau los ntawm cov phab ntsa ntawm cov nroj tsuag, yog cov khoom siv ntau yam uas tau txais kev pom zoo hauv kev lag luam ntim khoom. Raws li cov khoom siv txuas ntxiv dua tshiab thiab ntau dua, cellulose muaj lwm txoj hauv kev zoo rau cov khoom ntim khoom. Txawm hais tias tau txais los ntawm cov ntaub ntawv ntoo, paj rwb, lossis cov khoom ua liaj ua teb, cov khoom ntim ntawm cellulose muab ntau yam zoo.Cellulose-raws li ntim yog inherently biodegradable, tawg ib txwm dhau sijhawm. Qee cov formulations kuj tuaj yeem tsim los ua compostable, pab txo cov khoom pov tseg ib puag ncig.Piv rau cov khoom ntim khoom, cov kev xaiv ntawm cellulose feem ntau muaj cov pa roj carbon tsawg dua.
4. PIB
Polypropylene Carbonate (PPC) yog cov thermoplastic polymer uas sib txuas cov khoom ntawm polypropylene nrog cov polycarbonate. Nws yog cov khoom siv bio-based thiab biodegradable, muab cov khoom zoo ib puag ncig rau cov khoom siv yas. PPC yog muab los ntawm cov pa roj carbon dioxide thiab propylene oxide, ua rau nws muaj kev xaiv dua tshiab thiab ruaj khov.PPC yog tsim los ua biodegradable nyob rau hauv tej yam kev mob, tso cai rau nws mus ua txhaum mus rau hauv tej yam ntuj tso Cheebtsam nyob rau lub sij hawm, ua rau kom txo tau ib puag ncig.
5. PIB
Polyhydroxybutyrate (PHB) yog biodegradable thiab bio-based polyester uas belongs rau tsev neeg ntawm polyhydroxyalkanoates (PHAs). PHB yog synthesized los ntawm ntau yam kab mob ua lub zog cia khoom. Nws yog qhov tseem ceeb rau nws cov biodegradability, txuas ntxiv mus, thiab cov khoom siv thermoplastic, ua rau nws yog ib tus neeg sib tw pheej hmoo hauv kev nrhiav kev hloov pauv mus rau cov khoom siv niaj hnub. PHB yog inherently biodegradable, txhais tau tias nws tuaj yeem tawg los ntawm cov kab mob hauv ntau qhov chaw, ua rau txo qis ib puag ncig piv rau cov yas uas tsis yog biodegradable.
6. Cov hmoov txhuv nplej siab
Nyob rau hauv lub realm ntawm ntim, hmoov txhuv nplej siab plays lub luag hauj lwm tseem ceeb raws li ib tug sustainable thiab biodegradable cov ntaub ntawv, muab ib puag ncig tus phooj ywg lwm txoj kev rau cov pa plastics. Muab los ntawm cov chaw cog qoob loo, cov hmoov txhuv nplej siab raws li kev ntim khoom raws li lub ntiaj teb kev siv zog los txo qhov cuam tshuam ib puag ncig ntawm cov khoom ntim.
7. PAB
PBAT yog biodegradable thiab compostable polymer belongs rau tsev neeg ntawm aliphatic-aromatic copolyesters. Cov khoom siv ntau yam no yog tsim los daws cov kev txhawj xeeb ntawm ib puag ncig cuam tshuam nrog cov yas yas, muab lwm txoj hauv kev ruaj khov dua. PBAT tuaj yeem muab tau los ntawm cov peev txheej txuas ntxiv dua tshiab, xws li cov khoom cog qoob loo. Qhov kev rov tsim dua tshiab no ua raws li lub hom phiaj ntawm kev txo qis kev cia siab ntawm cov peev txheej fossil finite. Thiab nws yog tsim los biodegrade nyob rau hauv ib puag ncig tej yam kev mob. Cov kab mob microorganisms rhuav tshem cov polymer rau hauv cov khoom siv ntuj tsim, ua rau txo qis hauv cov pov tseg yas.
Kev taw qhia txog cov ntaub ntawv biodegradable yog ib qho tseem ceeb ntawm kev hloov mus rau kev coj noj coj ua nyob rau hauv ntau yam lag luam. Cov ntaub ntawv no, muab los ntawm cov khoom siv txuas ntxiv mus, muaj lub peev xwm los ua kom decompose, txo kev cuam tshuam ib puag ncig. Cov piv txwv tseem ceeb suav nrog Polyhydroxyalkanoates (PHA), Polylactic Acid (PLA), thiab Polypropylene Carbonate (PPC), txhua qhov muab cov khoom tshwj xeeb xws li biodegradability, txuas ntxiv mus, thiab ntau yam. Embracing biodegradable cov ntaub ntawv sib haum nrog lub ntiaj teb no thawb rau eco-phooj ywg lwm txoj kev rau cov tsoos plastics, hais txog kev txhawj xeeb txog kev ua qias tuaj thiab kev puas tsuaj. Cov ntaub ntawv no pom cov ntawv thov hauv ntim, textiles, thiab cov cuab yeej siv kho mob, ua rau muaj kev lag luam ncig uas cov khoom tsim los nrog lawv cov kev xav txog lub neej kawg. Txawm hais tias muaj kev sib tw xws li kev ua tau zoo thiab kev tsim khoom loj, kev tshawb fawb tsis tu ncua thiab thev naus laus zis nce qib txhawm rau txhim kho kev muaj peev xwm ntawm cov khoom siv biodegradable, txhawb kom muaj kev ruaj ntseg thiab ib puag ncig yav tom ntej.
Post lub sij hawm: Dec-07-2023