Nrog rau kev txhim kho ntawm tib neeg txoj kev ua neej nyob thiab kev paub txog kev tiv thaiv ib puag ncig, nws tau dhau los ua qhov kev xav tau ntawm kev tsim cov ntawv ntim cov tais kom maj mam hloov cov npuas ntim. Vim li cas thiaj ntim cov ntawv tais hloov ua npuas ncauj ntim?
(1) Pulp molded cov khoom yog ua los ntawm cov nroj tsuag fiber ntau cov ntaub so ntswg los yog cov ntaub ntawv pov tseg uas tuaj yeem rov ua dua tshiab thiab rov siv dua li cov ntaub ntawv yooj yim, thiab tau tsim nrog cov cuab yeej tshwj xeeb thiab tau siv dav hauv cov khoom noj (tshuaj) cia, ntim hluav taws xob, Tsis yog -kev siv tshuab tsis zoo-raws li cov khoom siv ntsuab hauv kev cog qoob loo, cov khoom siv kho mob, cov khoom siv tes ua.
(2) Nrog rau txoj kev loj hlob ntawm kev lag luam, ntau cov fluorine- muaj cov tshuaj tau nce mus rau hauv cov huab cua, ua rau muaj kev puas tsuaj loj ntawm cov ozone txheej uas tib neeg nyob. Ntau txhiab mais ntawm ozone txheej qhov tau tsim nyob rau hauv Antarctic thiab Arctic, muab lub ntiaj teb ecological ib puag ncig Qhov no ua rau muaj kev puas tsuaj loj. Vim li no, United Nations Environmental Protection Agency tau tsa lub ntiaj teb no -kev sib tham thoob plaws ib puag ncig. Xyoo 1998, "Vienna Convention for the Protection of the Ozone Layer" thiab "Montreal Protocol on Substances that Deplete the Ozone Layer" tau dhau los, qhia meej meej tias cov teb chaws hauv ntiaj teb Nws yuav maj mam txo kom txog thaum cov tshuaj fluorine - muaj cov khoom uas rhuav tshem cov txheej txheem ozone.
(3) Nyob rau hauv xyoo tas los no, cov khoom yas, ib qho ntawm peb cov khoom ntim loj, tshwj xeeb tshaj yog nthuav dav polystyrene (EPS) cov khoom, tau dhau los ua qhov hnyav thiab dhau los ua "dawb paug" uas txhua tus neeg ntxub. Cov pov tseg pov tseg ntawm cov ntim polystyrene ua npuas ncauj tau ua rau muaj kuab paug loj rau ib puag ncig. Hlawv ua rau lub ntiaj teb atmospheric ozone txheej; cov pawg tsis tuaj yeem corroded thiab cov qauv geological puas lawm. Cov khoom siv yas ua npuas dej no tau ua rau muaj kev puas tsuaj loj rau lub ntiaj teb ib puag ncig. Hloov mus rau biodegradable ib puag ncig tus phooj ywg ntim cov ntaub ntawv, tshem tawm "dawb paug", thiab kev txhim kho tib neeg lub neej nyob ib puag ncig tau dhau los ua kev xav tau thoob ntiaj teb thiab hauv tsev.
(4) Cov khoom siv rooj tog thiab cov khoom ntim khoom tsim los ntawm cov tshuab ua kua nplaum yog cov khoom lag luam zoo ib puag ncig. Lawv siv cov ntoo fibers lossis cov ntawv pov tseg ua cov ntaub ntawv raw, thiab tsis muaj kuab paug hauv kev tsim khoom thiab siv cov txheej txheem. Ntxiv rau nws lub luag haujlwm tseem ceeb hauv kev hloov cov khoom siv yas pov tseg, molded pulp khoom kuj tau siv dav hauv ntim cov khoom lag luam, tshwj xeeb tshaj yog cov khoom siv hluav taws xob. Moulded pulp khoom yog maj mam nkag mus rau hauv lub ntsiab ntawm kev lag luam kev ua ub no. Tam sim no nws yog ib qho khoom zoo ntawm cov khoom siv yas foamed. Raws li lwm cov khoom lag luam, kev lag luam pulp molded khoom lag luam yog booming.
(5) Pulp molded cov khoom lag luam tau txhim kho sai thiab muaj kev cia siab zoo.
