Cov ntaub ntawv Bio-degradable tag nrho
Thaum tsim kev vam meej niaj hnub no, txhua yam ntawm cov khoom yas kuj coj cov pa phem dawb.Cov tais diav pov tseg, cov khoom siv yas pov tseg thiab cov yas ua liaj ua teb yog qhov nyuaj rau rov ua dua tshiab, thiab lawv txoj kev kho mob feem ntau yog incineration thiab faus.Incineration yuav tsim ntau cov pa phem thiab ua phem rau ib puag ncig.Cov polymer hauv qhov chaw pov tseg tsis tuaj yeem decomposed los ntawm cov kab mob me me rau lub sijhawm luv luv thiab ua paug rau ib puag ncig.Cov yas zaj duab xis residual muaj nyob rau hauv av, uas cuam tshuam txoj kev loj hlob ntawm cov qoob loo cov hauv paus hniav thiab nqus dej thiab cov as-ham, txo cov av permeability, thiab ua rau cov qoob loo yield txo.Tsiaj txhu tuaj yeem tuag ntawm txoj hnyuv tom qab noj cov hnab yas.Synthetic fiber nuv ntses nets thiab kab poob lossis tso tseg hauv dej hiav txwv tau ua rau muaj kev phom sij loj heev rau Marine lub neej, yog li nws yog qhov tseem ceeb los tawm tswv yim ntsuab noj thiab ntxiv dag zog rau kev tiv thaiv ib puag ncig.Biodegradable cov ntaub ntawv ua raws li tus qauv raws li cov khoom siv high-tech thiab cov khoom tiv thaiv ib puag ncig tau dhau los ua qhov kev tshawb fawb thiab kev loj hlob kub.
Ib qho yog cov ntaub ntawv biodegradable kiag li, xws li ntuj polymer cellulose, hluavtaws polycaprolactone, thiab lwm yam, uas nws decomposition mas yog los ntawm: ① kev loj hlob sai ntawm cov kab mob ua rau lub cev qhuav dej ntawm cov qauv yas;② Vim microbial biochemical ua, enzyme catalysis lossis acid-base catalysis ntawm ntau yam hydrolysis;③ Cov saw degradation ntawm dawb radicals tshwm sim los ntawm lwm yam.
Lwm pawg yog biodisintegrating cov ntaub ntawv, xws li cov hmoov txhuv nplej siab thiab polyethylene blends, uas nws decomposition yog feem ntau yog vim kev puas tsuaj ntawm additives thiab tsis muaj zog ntawm lub polymer saw, ua rau lub molecular hnyav ntawm lub polymer degrade mus rau qhov uas nws muaj peev xwm zom tau. microorganisms, thiab thaum kawg mus rau carbon dioxide (CO2) thiab dej.
Feem ntau bio-Cov khoom tawg yog sib xyaw nrog polyethylene thiab polystyrene los ntawm kev ntxiv cov hmoov txhuv nplej siab thiab photosensitizer.Cov kev tshawb fawb tau pom tias cov hnab yas uas muaj cov hmoov txhuv nplej siab biodegradable thaum kawg yuav xaus rau hauv qhov chaw pov tseg, tawm ntawm kev sib cuag nrog lub hnub ci, txawm tias muaj kev puas tsuaj lom, qhov degradation feem ntau yog bio.-degradation.Qee lub sij hawm kuaj pom tias tsis muaj qhov pom tseeb ntawm cov hnab khib nyiab, cov hnab khib nyiab tsis muaj kev puas tsuaj ntuj.
Txhawm rau daws cov teeb meem ib puag ncig, txawm hais tias cov hmoov txhuv nplej siab raws li cov khoom siv tau zoo dua li cov khoom siv yas pov tseg, tab sis tseem siv cov khoom siv tsis yog biodegradable polyethylene lossis polyester li raw cov ntaub ntawv, tsuas yog cov ntaub ntawv ib nrab degradable, ntxiv rau cov hmoov txhuv nplej siab ntxiv tuaj yeem degraded, tshuav ntau ntawm polyethylene lossis polyester tseem yuav nyob twj ywm thiab tsis muaj biodegradable tag nrho, tsuas yog decomposed rau hauv fragments, tsis tuaj yeem siv dua.Yog li ntawd, ua tiav cov ntaub ntawv biodegradable dhau los ua qhov tseem ceeb ntawm kev tshawb fawb ntawm cov ntaub ntawv degradable.
Post lub sij hawm: Mar-26-2023