Cov hnab yas uas peb siv tsis tu ncua txhua hnub tau ua rau muaj teeb meem loj thiab hnyav rau ib puag ncig.
Yog tias koj xav hloov cov hnab yas dav dav los ntawm kev xaiv qee lub hnab yas "degradable", cov ntsiab lus hauv qab no hais txog cov hnab yas degradable yuav pab koj xaiv ib puag ncig zoo!
Tej zaum koj tau pom tias muaj qee qhov "cov hnab yas degradable" ntawm lub khw.Tej zaum koj yuav xav tias cov hnab yas nrog lo lus "degradable" yuav tsum degradable thiab ib puag ncig tus phooj ywg.Txawm li cas los xij, qhov no tsis yog qhov xwm txheej.Ua ntej tshaj plaws, tsuas yog thaum lub hnab yas thaum kawg tuaj yeem dhau los ua cov khoom tsis zoo xws li dej thiab carbon dioxide, lawv tuaj yeem ua lub hnab zoo rau ib puag ncig.Muaj ntau ntau hom hnab yas "ib puag ncig tus phooj ywg" ntawm kev ua lag luam: hnab yas degradable, hnab biodegradable, thiab hnab compostable.
Lub polymer nyob rau hauv lub hnab yas yog ib feem los yog tag nrho puas vim yog ultraviolet hluav taws xob, oxidation corrosion, thiab lom corrosion.Qhov no txhais tau hais tias kev hloov ntawm cov khoom xws li fading, nto tawg, thiab fragmentation.Cov txheej txheem biochemical nyob rau hauv uas cov organic teeb meem nyob rau hauv lub hnab yas yog tag nrho los yog ib nrab hloov mus rau hauv dej, carbon dioxide / methane, lub zog thiab tshiab biomass nyob rau hauv qhov kev txiav txim ntawm cov kab mob (cov kab mob thiab fungi).Cov hnab yas tuaj yeem ua rau biodegraded nyob rau hauv cov xwm txheej tshwj xeeb thiab lub sijhawm ntsuas ntawm cov av kub kub, thiab feem ntau yuav tsum muaj kev tsim cov composting kom ua tau zoo dua degradation efficiency.
Los ntawm peb qhov kev xav saum toj no, tsuas yog cov hnab ntim biodegradable lossis compostable tiag tiag yog "kev tiv thaiv ib puag ncig"!
Thawj hom "degradable" hnab yas tshwj xeeb suav nrog "photodegradation" lossis "thermal oxygen degradation. Thaum kawg, lawv tsuas tuaj yeem tig lub hnab yas rau hauv cov yas me me, uas tsis yog qhov zoo rau kev rov ua dua thiab ntxuav cov yas, tab sis kuj tawg. Plastics nkag mus rau ib puag ncig yuav ua rau muaj teeb meem ntau dua, yog li ntawd, lub hnab yas "degradable" no tsis yog ib puag ncig, thiab nws kuj tau ua rau muaj kev tawm tsam ntau hauv kev lag luam.
Photodegradable plastics: plastics uas degraded los ntawm lub teeb ntuj;Lub teeb belongs rau ultraviolet hluav taws xob, uas tuaj yeem ua rau ib nrab lossis ua tiav kev puas tsuaj rau cov polymer.
Thermal oxidative degradation plastics: plastics uas degraded los ntawm tshav kub thiab / los yog oxidation;thermal-oxidative degradation belongs rau oxidative corrosion, uas tuaj yeem ua rau ib nrab lossis ua tiav kev puas tsuaj rau cov polymer.Yog li ntawd, kawm paub qhov txawv ntawm cov hnab yas degradable sib txawv thaum muaj xwm txheej ceev!
Cov hnab yas uas tsim tawm raug cai yuav tsum raug cim raws li cov qauv thiab cov khoom siv.Ntawm lawv: cov cim rov ua dua tshiab qhia tias lub hnab yas tuaj yeem rov ua dua thiab rov siv dua;04 nyob rau hauv lub cim recycling yog ib qho tshwj xeeb recycling digital ID rau low-density polyethylene (LDPE);nyob rau hauv cov cim kev rov ua dua> PE-LD< qhia cov khoom siv ntawm cov hnab yas;"GB / T 21661-2008" ntawm sab xis ntawm lo lus "lub hnab ntim khoom" yog cov qauv tsim ua raws li cov hnab yas khw.
Yog li ntawd, thaum yuav ib lub hnab biodegradable los yog compostable, koj yuav tsum xub xyuas seb puas muaj lub hnab yas logo xav tau los ntawm lub teb chaws hauv qab lub hnab.Tom qab ntawd, txiav txim siab raws li cov ntaub ntawv tsim cov hnab yas hauv qab daim ntawv tiv thaiv ib puag ncig.Cov khoom siv biodegradable lossis compostable hnab yog PLA, PBAT, thiab lwm yam.
Siv lub hnab yas siv kom ntau li ntau tau thiab sim siv nws kom ntau li ntau tau ua ntej muab pov tseg!
Post lub sij hawm: Sep-13-2022
