Cov ntsiab lus ntawm kev paub: Dab tsi yog cov khoom siv degradable plastics, lub plhaw-bio plastics, thiab cov yas siv tau dua tshiab?
Yas ntim ntim tau ntau yam zoo xws li tus nqi qis, ntim khoom yooj yim, yooj yim cia thiab tsheb thauj mus los. Nws tau tsim los rau ntau tshaj 100 xyoo. Txhawm rau kom ua tau raws li kev ua haujlwm ntawm kev luam ntawv, kev khuam siab, thiab kev tshav kub khi, yas ntim khoom ntim tau hloov maj mam tsim los ntawm ib txheej-txheej qauv rau niaj hnub no' s txheej txheem ntau txheej txheem. Tus qauv sib xyaw ua ke ntawm cov khoom siv, txheej sab nraud feem ntau yog siv rau kev luam ntawv, kev tiv tshav kub thiab kev cuam tshuam, cov khoom tseem ceeb yog BOPP, BOPA, BOPET, ntawv, thiab lwm yam; cov txheej nruab nrab feem ntau ua lub luag haujlwm thaiv, thiab cov khoom siv yog feem ntau aluminium ntawv ci lossis aluminized BOPP / PET, PVDC txheej zaj duab xis (ib nrab faib rau txheej sab nraud xws li EVOH, alumina / silica), thiab lwm yam, tiv thaiv cov pa oxygen thiab dej , yog li txuas ntxiv lub neej txee; lub puab txheej yog siv rau thaum tshav kub kub ua kom sov, thiab cov ntaub ntawv tseem ceeb yog PE, CPP, Kub yaj kua nplaum, khoom foob, thiab lwm yam.
Nrog rau kev siv ntau ntxiv, cov khoom yas tsis tuaj yeem ua kom ib txwm muaj, thiab kev puas tsuaj rau tib neeg ib puag ncig yog nce ntxiv. Raws li tsab ntawv ceeb toom tso tawm los ntawm Axis Tshawb Fawb Lub Siab, kev siv thoob ntiaj teb thoob ntiaj teb xyoo 2019 tau txog 570 lab tons.
Txhawm rau daws teeb meem kev nyab xeeb ntawm cov pov tseg dawb, ntau dua 40 lub teb chaws thiab thaj chaw thoob ntiaj teb tau txwv kev siv cov hnab yas pov tseg. Thaum xyoo 2021, EU yuav txwv cov khoom siv yas uas siv pov tseg nrog kev xaiv, xws li cov yas yas, pob ntseg siv pov tseg, thiab zaub mov noj. Ua ntej xyoo 2025, EU tus tswvcuab cov koomhaum yuav tsum ua tiav 90% ntawm cov yas raws li cov khoom siv tau rov ua dua tshiab thiab tau tshaj tawm sijhawm tshwj xeeb. Tuam Tshoj tseem tau xa cov cai thiab cov caij nyoog ntau yam nyob rau xyoo tas los no. Lub rooj sib tham 10 ntawm Central Comprehensive Deepening Reform Committee nyob rau xyoo 2019 qhia meej ntxiv hais tias nquag teb rau cov pa phem, txwv tsis pub thiab txwv cov khoom lag luam, muag khoom thiab siv qee cov khoom yas, nquag txhawb kev siv khoom dua tshiab thiab yooj yim kom zoo dua qub kev puas tsuaj. , thiab nce ntsuab Cov khoom lag luam muab khoom, txheem kev rov ua dua tshiab thiab siv cov yas pov tseg, tsim kom muaj lub suab tswj hwm rau txhua qhov txuas, thiab tswj cov pa phem yas kom zoo thiab ua tau zoo.
Teb rau qhov teeb meem ntawm cov pa phem yas, ua tiav kev txo yas, txwv yas, ua kom tsis zoo, thiab rov ua dua tshiab yuav dhau los ua qhov teeb meem tseem ceeb ntsib kev lag luam yas ntim ntim yas.
Kev txiav txim siab los ntawm kev txhim kho kev lag luam tam sim no thiab cov kev cai tseem ceeb ntawm cov teb chaws thoob ntiaj teb, yas txo qis yog feem ntau raws li kev tsim ntim thiab txoj cai txwv, kom txo qis thiab txwv tsis pub siv cov khoom yas, yog li txo cov pa paug yas; nyob rau hauv cov nqe lus ntawm kev txwv, nws yog tsuas yog txwv tsis pub muab lossis siv Lub hnab ntim khoom tsis muaj qhov khoom pov tseg, lub hnab ntim khoom pov tseg, lub hnab ntim khoom pov tseg, pov tseg cov hnab ntim khoom pov tseg, yog li txo lossis tshem tawm kev siv cov khoom yas hauv thaj chaw tshwj xeeb. Hais txog kev ua kom tsis zoo, nws feem ntau yog tsim los ntawm kev ntxiv PHA, PLA, PBS, PBAT, PCL rau cov laj kab dav dav los ua cov ntaub ntawv pov tseg tag nrho, lossis los ntawm kev ntxiv cov tshuaj txuas ntxiv, xws li cov hmoov txhuv nplej siab, cov qoob loo, cov ntoo, thiab lwm yam. hom kab mob ntxiv rau cov hom phiaj dav hlau. Bio-based plastics (Hom kev ua lag luam yas no tau raug txwv los ntawm EU txoj cai vim tias nws tsis tuaj yeem ua kom tag nrho, ua rau muaj kev ua qias tuaj ntxiv ntawm cov khoom me me ntawm cov yas me me). Tag nrho cov khoom siv muaj qhov tsis txaus nyob rau hauv kev ua tsis tau zoo thiab kev sib tw, kev ua haujlwm siab, kev tsim khoom tsis zoo thiab kev ua haujlwm zoo thiab lwm yam. Tam sim no, lawv tsuas yog siv nyob rau hauv lub hnab khw, hnab khib nyiab thiab nthuav dav ntim hnab.
Hauv cov ntim ntim ntawm cov zaub mov, tshuaj, thiab lwm yam, vim tias qhov xav tau rau lub sijhawm ntev khaws cia, kev xav tau ntau dua rau kev ua haujlwm thaiv teeb meem, kua muag, thiab kev cuam tshuam los tiv thaiv tso rau pem hauv ntej. Tus nqi ntawm kev siv yog loj heev. Yog li, yuav ua li cas thiaj li ua tiav qhov rov ua tiav tau los ua cov yas muag muag Cov kev taw qhia nrov ntawm pob' kev txhim kho yav tom ntej, kev rov ua haujlwm yuav tsum siv ntau dua 95% ntawm tib cov khoom thaum ua tau raws li cov kev xav tau ntawm luam ntawv, teeb meem, thiab kub kaw. Vim tias qhov chaw yaj ntawm txhuas ntawv ci thiab BOPET ntau dhau lawm, nws noj ntau dhau zog thaum lub sijhawm rov ua dua tshiab. Tam sim no, kev lag luam tsuas yog siv qis melting point PP (polypropylene) lossis PE (polyethylene) yog cov khoom tseem ceeb. Cov kev daws teeb meem tam sim no rau PP yog BOPP (luam ntawv) + CPP (tshav kub khi) + alumina / silica (teeb meem), thiab cov kev daws teeb meem rau PE yog BOPE (luam ntawv, HDPE) {{5} } PE (tshav kub khi, LDPE) + alumina / Silicon oxide (teeb meem).
Kev tshawb fawb thiab thev naus laus zis yog qhov pib ua lub zog. Nrog rau kev txhim kho ntawm lub sijhawm thiab kev txuas ntxiv ntawm kev siv thev naus laus zis, cov ntaub ntawv tshiab thiab cov txheej txheem hauv kev lag luam yas ntim khoom lag luam yuav txuas ntxiv, thiab kev tsim kho tshiab yog cov ntsiab lus nyob mus ib txhis.
Peb muab patented puv biodegradable zaj duab xis thiab lub hnab PVA, tag nrho cov khoom yog tsim los ntawm cov cuab yeej siv casting, Nws txawv ntawm cov tshuab moulding khoom, tag nrho cov tshuab moulding khoom tsis puv biodegradable. Peb tuaj yeem tsim pva zaj duab xis thiab hnab hauv pob tshab thiab pob tshab xim. thiab PVA zaj duab xis yog du ntau dua li cov tsoos tshuab moulding khoom.
Peb kuj muab cov khoom siv organic puv ntim biodegradable zaj duab xis thiab lub hnab nrog daim ntawv patented raw khoom thiab cov txheej txheem ntau lawm.
Xav paub ntau ntxiv PVA zaj duab xis thiab hnab khoom thov mus saib peb:
http://www.joyful-printing.net/pva-bag/
http://www.joyful-printing.com/pva-bag/