Coated ntawv yog cov khoom sib xyaw uas cov khoom yas tau coated rau saum npoo ntawm daim ntawv siv lub tshuab casting. Nws cov yam ntxwv tseem ceeb suav nrog roj thiab dej tsis kam (kwv yees), thiab cua sov- muaj peev xwm sealing. Cov txheej txheem txheej txhim kho daim ntawv lub zog thiab kav ntev.
Tsoos polyethylene (PE) coated cov khoom raug kev txom nyem los ntawm qhov tsis zoo xws li biodegradability tsis zoo, tsis yog -recyclability, thiab nyuaj rau kev rov ua dua tshiab. Muab piv rau cov txheej txheem txheej txheem txheej txheem, dej-raws li txheej los yog bio- cov ntaub ntawv raws li (xws li PLA thiab PHA) muaj qhov zoo xws li rov ua dua tshiab, compostability, thiab compostability. PHA coated ntawv cov khoom tuaj yeem muab tso rau hauv tsev thiab degraded nyob rau hauv marine ib puag ncig. Cov txheeb ze biodegradability ntawm tag nrho biodegradable coated composite ntawv yuav ua tau ntau tshaj los yog sib npaug rau 90%.
Cov khob ntawv coated tuaj yeem tso cov khoom yas (xws li PE thiab PA) thaum sib cuag nrog -kua kua; Qhov kom muaj nuj nqis thiab qhov loj me me ntawm cov khoom no yog qhov tseem ceeb ntawm cov khoom siv hluav taws xob rau kev ntsuam xyuas lawv txoj kev nyab xeeb. Tus naj npawb ntawm microplastic particles tsiv los ntawm tsib lub khob ntawv coated muaj li ntawm 5.67 ± 0.33 × 10^5 txog 33.67 ± 27.00 × 10^5 particles / L, nrog qhov nruab nrab particle loj ntawm 18.2 ± 14.5 μm.
Cov khoom saum npoo ntawm cov ntawv coated feem ntau yog cov yam ntxwv xws li kev huv, tso tawm lub zog, thiab tev lub zog. Kev huv huv yog hais txog kev huv thiab huv ntawm qhov chaw; tso tawm lub zog hais txog qhov yooj yim uas cov txheej txheej ntawm cov ntawv coated sib cais, uas nyob ntawm cov qauv; tev lub zog yog hais txog lub zog uas yuav tsum tau rhuav tshem cov khoom los ntawm cov ntawv coated, thiab muaj cov qauv ntsuas nruj.
