Yav dhau los, cov tshuaj perfluorinated PFAS coated rau sab hauv ntawm qee cov khoom ntim khoom noj muaj qee yam carcinogenicity, yog li ntau lub tuam txhab ntawm cov ntawv ntim khoom noj ceev tau hloov mus rau txheej txheej ntawm daim ntawv nrog txheej txheej ntawm cov yas xws li PE, PP. , EVA, sarin, thiab lwm yam. Cov yeeb yaj kiab tuaj yeem ua tiav lub hom phiaj ntawm cov dej tsis muaj dej thiab cov roj pov thawj, thiab zam kev puas tsuaj ntawm perfluorinated tshuaj PFAS rau tib neeg kev noj qab haus huv.Txawm li cas los xij, nyob rau hauv ib puag ncig ntuj, zoo li PFAS, cov qauv molecular ntawm cov yas zaj duab xis yog qhov ruaj khov thiab tsis tuaj yeem degraded, yog li tsim cov yas dawb.#PE coated ntawv khob ntxuam

Yog li ntawd, Suav tuam txhab uas muag tau tsim thiab tsim cov yees duab-oxygen biodegradation technology rau cov ntaub ntawv polymer (xws li yas, roj hmab, thiab tshuaj fibers), uas muaj peev xwm ua tau pov tseg biodegradation thiab compost degradation.

Diam duab-oxygen biodegradable masterbatch yog qhov ze tshaj plaws biodegradation thev naus laus zis kom sai degradation hauv ib puag ncig ntuj.Qhov sib ntxiv ntawm 1% tuaj yeem ua tiav sai sai yam tsis hloov cov khoom siv, cov cuab yeej tsim khoom, cov txheej txheem tsim khoom thiab kev ua haujlwm tag nrho ntawm cov khoom.

Txawm li cas los xij, tus nqi ntawm cov tshuaj polylactic acid PLA, PBAT, PBS, PHA thiab lwm yam biodegradable technologies nce los ntawm tsawg kawg yog 100% mus rau 200%, thiab kev ua tiav tsis tuaj yeem ncav cuag qhov kev ua tau zoo ntawm cov yas yas, yog li cov ntaub ntawv, cov khoom siv thiab cov txheej txheem ntau lawm. yuav tsum tau hloov.

Diam duab-oxygen biodegradation thev naus laus zis rau cov yeeb yaj kiab yas xws li PE thiab sarin tuaj yeem siv los tsim cov ntawv ntim khoom noj ceev ceev hauv Suav teb.#PE coated ntawv yob

Lub hauv paus ntsiab lus ntawm kev yees duab-oxygen biodegradation technology

Tuam Tshoj lub tuam txhab yas zaj duab xis yees duab-oxidative biodegradation tshuab yog ib hom tshiab technology uas biodegrades kiag li raws li cov yas zaj duab xis pov tseg nyob rau hauv ib puag ncig ntuj.Cov thev naus laus zis tau tsim los khaws nws lub neej muaj txiaj ntsig raws li cov khoom lag luam thiab nws cov khoom siv hluav taws xob, khoom siv hluav taws xob, kev thaiv, pob tshab thiab lwm yam khoom lag luam thoob plaws hauv nws lub neej, thiab tso cai rau cov yeeb yaj kiab yas kom biodegrade nyob rau hauv tej yam ntuj tso tom qab muab pov tseg.

Lub tshuab yog ntxiv cov duab-oxygen biodegradable masterbatch rau cov yas zaj duab xis kom nws ua raws li cov duab-oxygen biodegradable yas olefin zaj duab xis.Txhim kho qhov nrawm ntawm cov pa oxygen atoms nkag rau hauv cov saw hlau ntawm cov yas polymers.Cov yas polymers tau tawg ua cov khoom me me hauv ib puag ncig aerobic, thiab tom qab ntawd decomposed los ntawm cov kab mob ubiquitous nyob rau hauv ib puag ncig ntuj.#PE coated ntawv hauv qab yob

Cov txheej txheem degradation ntawm cov yeeb yaj kiab yas siv yees duab-oxygen biodegradation thev naus laus zis tuaj yeem muab faib ua ob theem.
Thawj theem: Cov yas zaj duab xis ntxiv nrog cov duab-oxygen biodegradable masterbatch reacts nrog oxygen nyob rau hauv cov huab cua, ua rau cov additive mus tua cov pa roj carbon saw ntawm lub polymer, thiab cov pa roj carbon monoxide yog oxidized los tsim molecular fragments nrog ib tug txheeb ze molecular loj. tsawg dua 10,000 lossis tsawg dua (Cov kws tshawb fawb hauv Tebchaws Europe thiab Nyij Pooj ntseeg tias oligomers nrog cov txheeb ze molecular hnyav tsawg dua 400,000 tuaj yeem nqos tau los ntawm cov kab mob).

Nyob rau theem no, degradation yog cov txheej txheem abiotic, uas txhawb kev nkag ntawm oxygen atoms rau hauv cov hlab ntsha ntawm cov pa roj carbon monoxide uas cov polymer tawg los ua ntau pawg ua haujlwm (xws li carboxylic acids, esters, aldehydes, thiab cawv).

Lub siab molecular polymer hloov los ntawm hydrophobic macromolecule saw mus rau hydrophilic me me molecular saw, uas ua rau cov tawg ntawm cov saw molecular yooj yim rau eroded thiab zom los ntawm cov kab mob.# Raw khoom ntawv khob ntxuam

Qhov thib ob theem: cov kab mob nyob txhua qhov chaw (cov kab mob, fungi thiab algae) nyob rau hauv cov xwm txheej decompose cov yas zaj duab xis raws li cov khoom noj, thiab thaum kawg decompose nws mus rau hauv carbon dioxide, dej thiab biomass.Lub degradation ntawm theem no yog hu ua txheej txheem biodegradation.

Kev xeem thiab cov qauv

Txawm hais tias nyob hauv huab cua qhib lossis hauv chav kuaj, qhov degradation ntawm cov cuab yeej no tuaj yeem ncav cuag ntau dua 60%.Hauv kuv lub teb chaws tus qauv GB / T 20197-2006 thiab GB / T 19277.1-2011, qhov kev ntsuas siab tshaj plaws rau biodegradation tus nqi yog 60%.

Hauv lub xeev kuaj, rau cov yeeb yaj kiab uas muaj qhov tuab tsawg dua 15 μm, lawv tuaj yeem nkag mus rau theem biodegradation tom qab simulating 3 lub hlis ntawm kev laus.Simulated aging tuaj yeem xaiv UV aging lossis xenon teeb aging.

Nkag mus rau theem biodegradation, tus txheej txheem polyolefin degradation siab tshaj plaws nyob hauv lub ntiaj teb (PAS 9017: 2020) yuav tsum muaj tus nqi degradation ntau dua 90% hauv 730 hnub, uas yog ntau dua li cov qauv hauv tebchaws hauv kuv lub tebchaws.

Cov txheej txheem ntawm kev yees duab-oxidative biodegradation thev naus laus zis ntawm cov yas zaj duab xis deb tshaj lub teb chaws tus qauv, uas yog nyob rau hauv txoj kab nrog lub siab tshaj plaws polyolefin degradation txuj nyob rau hauv lub ntiaj teb no (PAS 9017: 2020).

Tom qab sib xyaw cov duab-oxygen biodegradable masterbatch rau hauv cov yas resins xws li PE thiab sarin, cov khoom tsim muaj biodegradable zog, thiab lawv 180-hnub biodegradation tus nqi tuaj yeem ncav cuag 60%, ua tau raws li lub teb chaws tus qauv GB / T 38082- 2019 yuav tsum tau biodegradation tus nqi.Nws tuaj yeem ua tiav biodegraded nyob rau hauv cov xwm txheej ntawm qhib huab cua pov tseg, landfill lossis aerobic composting.# PE coated daim ntawv

Diam duab-oxygen biodegradation thev naus laus zis tuaj yeem dhau qhov kev sim ntawm cov qauv hauv qab no hauv Suav teb: GB / T 20197-2006, GB / T 19277.1-2011, GB / T 38082-2019.Raws li txoj cai tam sim no dual carbon txoj cai thiab lub tswv yim.

Kev xaiv ntawm Biodegradation Technology Routes rau txawv txheej txheej

EVA txheej thiab PP txheej yog tsim nyog rau Suav tuam txhab (anaerobic + marine) biodegradation technology, tau kawg, Suav tuam txhab yees duab-oxygen biodegradation technology kuj siv tau.

Sarin resin, LLDPE, LDPE thiab lwm yam txheej txheej yog tsim rau cov duab-oxygen biodegradation technology ntawm Suav tuam txhab uas muag.Tau kawg, nws tseem tuaj yeem txo qhov kub ntawm qhov kub kom qis dua 310 ° C kom yooj yim rau kev siv (anaerobic + marine) biodegradation technology.#Nanning Dihui Ntawv Khoom Co., Ltd.