Thaum Lub Ib Hlis Ntuj xyoo tas los, Cov Kev Pom Zoo ntawm Kev Txhim Kho Cov Plastic Pollution Control tau tshaj tawm los ntawm National Development thiab Reform Commission thiab Ministry of Ecology thiab Ib puag ncig tau raug hu ua "qhov kev txwv cov yas muaj zog tshaj plaws hauv keeb kwm". Beijing, Shanghai, Hainan thiab lwm qhov chaw tau nrawm rau kev ua raws li cov cai txwv yas. Chengdu version ntawm "Qhov Kev Txiav Txim Siab Zoo Tshaj Plaws hauv Keeb Kwm"-"Chengdu Action Plan for Strengthening Plastic Pollution Control" kuj tseem yuav nkag mus rau txhua tus neeg lub neej nrog rau xyoo 2021.
"Tab sis tus qauv yog me ntsis ntxiv, nws zoo nkaus li chaotic, thiab tseem tsis tau muaj lub tswv yim." Tus qauv hais los ntawm Mr Yang, uas koom nrog kev tsim cov khoom yas, hais txog tus qauv ntawm cov hnab yas degradable. Ntxiv rau Mr. Yang, ntau tus pej xeem tsis meej pem txog tus qauv ntawm "kev txwv txiav yas". "Kuv txhawb nqa cov kev txwv yas, tab sis kuv tsis paub tias lub hnab yas degradable yog dab tsi."
Yam dab tsi ntawm lub hnab yas degradable yog nws, thiab tus qauv yuav tsum raug cim? Tus neeg sau xov xwm nug txog cov qauv tsim nyog thiab xam phaj cov chaw sim.
Offline Shangchao
Cov hnab yas degradable muaj cov qauv sib txawv, thiab cov ntaub ntawv muaj qhov sib txawv ntawm tes
Tus neeg sau xov xwm tau mus xyuas qhov chaw thiab pom tias cov qauv ntawm cov hnab yas degradable siv los ntawm cov khw muag khoom offline tsis zoo ib yam.
Lub hnab yas biodegradable siv hauv familymart yog cim los ntawm GB / T38082-2019. Raws li cov chaw tsim khoom, qhov no yog tus qauv siv dav hauv cov hnab yas degradable hauv kev lag luam.
Txawm li cas los xij, cov hnab yas khoom siv hauv WOWO cov khw muag khoom yooj yim tsuas yog muaj cov lus "degradable ib puag ncig tiv thaiv hnab", tsis muaj cim cov qauv tsim lossis hom yas. Lub hnab yas no zoo li txawv me ntsis ntawm familymart's, nws xav tias thicker thiab muaj ib tug smoother nto.
Tsis tas li ntawd, tus qauv ntawm lub hnab yas ntawm peb lub khw muag khoom yog Cov Hnab Yas Khw (GB / T21661-2008). Qee lub hnab yas uas siv tus qauv no tau luam tawm nrog cov lus hais ntawm "kev tiv thaiv ib puag ncig' lub hnab mus tsev". Cov hnab yas no puas yog degradable? Cov tub lag luam tau hais tias lawv tsis yog cov hnab yas degradable, thiab cov lus "kev tiv thaiv ib puag ncig" tau sau cia siab tias txhua tus tuaj yeem siv tau ntau zaus.
Ntxiv rau kev mus xyuas Shangchao, tus neeg sau xov xwm pom hauv lub chaw muag khoom hauv Erxianqiao tias muaj ob hom hnab yas degradable muag ntawm no. Ib qho zoo ib yam li ib qho hauv WOWO lub khw muag khoom yooj yim, nrog lub ntsej muag du, thiab lwm qhov zoo ib yam li lub hnab yas degradable siv hauv familymart, nrog qhov hnyav dua.
Kev nug online
Ua ntau yam qauv, thiab cov qauv sib txawv ntawm cheeb tsam mus rau ib cheeb tsam
Tom qab nkag mus rau "cov hnab yas degradable" ntawm lub khw muag khoom lub vev xaib, tus neeg sau xov xwm tau sab laj tsib lossis rau lub khw muag khoom nrog cov khoom muag ntau tshaj plaws, thiab kawm tias cov hnab yas degradable muag hauv online feem ntau suav nrog peb pawg: biodegradation, starch-based degradation thiab photodegradation.
Ntawm lawv, cov hnab yas biodegradable feem ntau hu ua cov hnab yas biodegradable, thiab cov qauv siv yog GB / T38082-2019. Kev sib xyaw ntawm PBAT + PLA thiab PBAT + PLA + ST yog saws, thiab tus txheeb ze decomposition yog tshaj 90%. Cov khoom muag muag, lub hnab translucent, ntuj degradation, thiab tus nqi kim heev.
Starch-raws li degradable hnab yas muaj bio-based pob kws hmoov txhuv nplej siab ST30 degradable cov khoom, thiab cov qauv siv yog GB / T38079-2019. ST30 cog pob kws hmoov nplej sib tov yog saws, thiab cov ntsiab lus bio-based yog 20% -50%. Cov khoom yog me ntsis mos, lub hnab yog milky thiab yellowish, uas yuav faus thiab degraded, thiab tus nqi yog nruab nrab.
Lub hnab yas photodegradable yog tsim los ntawm photodegradable ntxhia thiab inorganic hmoov MD40, thiab tus qauv siv yog GB / T20197-2006. Qhov sib tov ntawm PE thiab MD40 degradable hais yog saws, thiab tus nqi degradation yog tshaj 30%. Cov khoom siv yog ib qho nyuaj rau qhov kov, lub hnab ntim mis dawb, uas tuaj yeem ua rau hauv hmoov, faus thiab yees duab-oxidized, thiab tus nqi yog kev lag luam thiab siv tau.
Tsuas yog peb tus qauv saum toj no, tus neeg sau xov xwm tsis pom GB / T21661-2008 hauv daim ntawv tshuaj ntsuam xyuas los ntawm cov tub lag luam.
Qee cov tub lag luam tau hais tias ntau txoj cai hauv zos txawv, nyob ntawm seb lawv siv qhov twg. "Biodegradation feem ntau yog siv nyob rau hauv ntug hiav txwv dej, thiab nws yuav tsum tau ua kom tiav 100% degradation nyob rau hauv dej. Tam sim no, Hainan xav tau biodegradation tag nrho, thiab cov hmoov txhuv nplej siab thiab photodegradation tuaj yeem siv rau lwm qhov chaw.
Txuj kev txawv
Tus txheej txheem tau ua kom paub meej tias yuav cim nws li cas: "kos nws ntawm cov khoom lossis ntim sab nraud"
Cov qauv rau cov hnab yas degradable yog dazzling. Cov qauv saum toj no puas siv tau? Tus neeg sau xov xwm nug txog qhov teeb meem no nyob rau hauv lub teb chaws tus txheej txheem tag nrho cov ntawv tshaj tawm thiab cov vev xaib cuam tshuam ntawm kev lag luam. Tsuas yog tias "GB/T21661-2008 hnab yas khw" raug tshem tawm thaum Lub Kaum Ob Hlis 31, 2020 thiab hloov los ntawm "GB/T 21661-2020 hnab yas khw", tag nrho lwm cov qauv siv tau tam sim no.
Nws yog tsim nyog sau cia tias GB / T 20197-2006 txhais cov ntsiab lus, kev faib tawm, cim thiab degradation kev ua tau zoo ntawm cov yas degradable. Raws li tus qauv no, nyob rau hauv cov xwm txheej ib puag ncig, tom qab ib lub sijhawm thiab suav nrog ib lossis ntau cov kauj ruam, cov qauv tshuaj ntawm cov ntaub ntawv yuav hloov pauv thiab qee yam khoom yuav ploj mus, lossis cov yas yuav tawg mus rau hauv cov yas degraded. Raws li nws tsim, txoj kev degradation kawg ntawm cov yas degradable muaj xws li biodegradable plastics, compostable plastics, photodegradable plastics thiab thermooxidative degradable plastics.
Nyob rau tib lub sijhawm, nws tau thov nyob rau hauv tus qauv no tias thaum siv cov cim rau cov khoom yas degradable, lawv yuav tsum tau muab cim rau ntawm cov khoom lossis cov ntim sab nraud. Cov ntawv yas photodegradable polypropylene ua raws li tus qauv no muaj 15% ntxhia hmoov thiab 25% iav fiber ntau, thiab 5% photosensitizer ntxiv. Qhov ntev, dav thiab tuab yog 500mm, 1000mm thiab 2mm feem, uas yog qhia raws li GB / T20197 / photodegradable yas PP-(GF25 + MD15) DPA5.
Post lub sij hawm: Apr-17-2021
