Xov Xwm Kev Lag Luam
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HDPE siv rau dab tsi?
HDPE siv rau hauv cov khoom thiab cov ntim khoom xws li cov khob mis nyuj, cov fwj tshuaj ntxuav tes, cov thoob margarine, cov thawv pov tseg thiab cov kav dej. Hauv cov raj uas muaj ntau qhov ntev sib txawv, HDPE siv los hloov cov raj xa ntawv cardboard mortar rau ob qho laj thawj tseem ceeb. Ib qho, nws muaj kev nyab xeeb dua li cov raj xa ntawv cardboard vim tias yog tias lub plhaub ua haujlwm tsis zoo thiab tawg hauv cov raj HDPE, lub raj yuav tsis tawg. Qhov laj thawj thib ob yog tias lawv siv tau dua uas tso cai rau cov neeg tsim qauv tsim ntau lub txee mortar. Cov kws kho phom tsis pom zoo siv cov raj PVC hauv cov raj xa ntawv mortar vim tias nws feem ntau tawg, xa cov yas me me rau cov neeg saib, thiab yuav tsis tshwm sim hauv X-rays. -
Daim npav ntsuab PLA dhau los ua qhov kev daws teeb meem nrov rau kev lag luam nyiaj txiag.
Txhua xyoo xav tau yas ntau dhau los ua daim npav rho nyiaj, thiab nrog kev txhawj xeeb txog ib puag ncig loj hlob tuaj, Thales, tus thawj coj hauv kev ruaj ntseg thev naus laus zis siab, tau tsim ib qho kev daws teeb meem. Piv txwv li, daim npav ua los ntawm 85% polylactic acid (PLA), uas yog los ntawm pob kws; lwm txoj hauv kev tshiab yog siv cov ntaub so ntswg los ntawm kev ua haujlwm ntxuav ntug dej hiav txwv los ntawm kev koom tes nrog pawg ib puag ncig Parley rau Oceans. Cov khib nyiab yas sau - "Ocean Plastic®" ua cov khoom siv tshiab rau kev tsim cov npav; kuj tseem muaj kev xaiv rau cov npav PVC rov ua dua tshiab ua los ntawm cov yas pov tseg los ntawm kev lag luam ntim khoom thiab luam ntawv kom txo qis kev siv cov yas tshiab. -
Kev tshuaj xyuas luv luv ntawm Tuam Tshoj cov ntaub ntawv xa tawm thiab xa tawm ntawm pvc resin paste txij lub Ib Hlis mus txog rau Lub Rau Hli.
Txij lub Ib Hlis mus txog rau Lub Rau Hli 2022, kuv lub teb chaws tau xa tawm tag nrho 37,600 tons ntawm cov tshuaj nplaum, txo qis 23% piv rau lub sijhawm tib yam xyoo tas los, thiab xa tawm tag nrho 46,800 tons ntawm cov tshuaj nplaum, nce 53.16% piv rau lub sijhawm tib yam xyoo tas los. Hauv thawj ib nrab ntawm lub xyoo, tshwj tsis yog rau cov tuam txhab lag luam ib leeg kaw rau kev saib xyuas, lub Hoobkas tshuaj nplaum hauv tsev lub luag haujlwm tseem nyob rau theem siab, kev muab khoom txaus, thiab kev ua lag luam txuas ntxiv poob qis. Cov chaw tsim khoom nquag nrhiav kev txiav txim xa khoom kom txo tau kev tsis sib haum xeeb hauv kev ua lag luam hauv tsev, thiab cov ntim khoom xa tawm tau nce ntxiv ntau heev. -
Koj tuaj yeem paub li cas tias yas yog polypropylene?
Ib txoj hauv kev yooj yim tshaj plaws los ua qhov kev sim nplaim taws yog los ntawm kev txiav ib qho qauv ntawm cov yas thiab hlawv nws hauv lub txee pa taws. Xim ntawm nplaim taws, tsw thiab cov yam ntxwv ntawm kev hlawv tuaj yeem qhia txog hom yas: 1. Polyethylene (PE) - Txia, tsw zoo li tswm ciab; 2. Polypropylene (PP) - Txia, feem ntau tsw ntawm roj cav qias neeg thiab tsis hnov tsw ntawm tswm ciab; 3. Polymethylmethacrylate (PMMA, "Perspex") - Npuas, tawg, tsw qab qab zib; 4. Polyamide lossis "Nylon" (PA) - nplaim taws dub, tsw ntawm paj marigolds; 5. Acrylonitrilebutadienestyrene (ABS) - Tsis pob tshab, nplaim taws dub, tsw ntawm paj marigolds; 6. Polyethylene ua npuas ncauj (PE) - Txia, tsw ntawm tswm ciab -
Mars M Beans tshaj tawm cov ntawv ntim khoom PLA composite uas lwj tau hauv Suav teb.
Xyoo 2022, Mars tau tsim thawj M&M's chocolate ntim rau hauv daim ntawv sib xyaw uas lwj tau hauv Suav teb. Nws yog ua los ntawm cov khoom siv lwj tau xws li ntawv thiab PLA, hloov cov yas mos mos ib txwm muaj yav dhau los. Cov ntim tau dhau GB/T Txoj kev txiav txim siab ntawm 19277.1 tau lees paub tias nyob rau hauv cov xwm txheej composting kev lag luam, nws tuaj yeem lwj ntau dua 90% hauv 6 lub hlis, thiab nws yuav dhau los ua dej tsis muaj tshuaj lom, carbon dioxide thiab lwm yam khoom tom qab lwj. -
Tuam Tshoj cov khoom xa tawm PVC tseem nyob siab hauv thawj ib nrab ntawm lub xyoo.
Raws li cov ntaub ntawv tshiab tshaj plaws ntawm kev lis kev cai, thaum Lub Rau Hli 2022, kuv lub teb chaws cov khoom xa tuaj ntawm PVC hmoov ntshiab yog 29,900 tons, nce 35.47% ntawm lub hli dhau los thiab nce txhua xyoo ntawm 23.21%; thaum Lub Rau Hli 2022, kuv lub teb chaws cov khoom xa tawm ntawm PVC hmoov ntshiab yog 223,500 tons, Qhov txo qis txhua hli yog 16%, thiab qhov nce txhua xyoo yog 72.50%. Qhov ntim xa tawm txuas ntxiv mus rau qib siab, uas ua rau muaj kev pabcuam ntau hauv kev lag luam hauv tsev mus rau qee qhov. -
Polypropylene (PP) yog dab tsi?
Polypropylene (PP) yog ib yam khoom siv thermoplastic uas tawv, tawv, thiab siv lead ua. Nws yog ua los ntawm propene (lossis propylene) monomer. Cov roj hydrocarbon linear no yog cov polymer sib dua ntawm txhua yam khoom yas. PP los ua homopolymer lossis copolymer thiab tuaj yeem ua kom muaj zog nrog cov khoom ntxiv. Nws pom daim ntawv thov hauv kev ntim khoom, tsheb, khoom siv rau cov neeg siv khoom, kev kho mob, cov yeeb yaj kiab cam khwb cia, thiab lwm yam. PP tau dhau los ua cov khoom siv xaiv, tshwj xeeb tshaj yog thaum koj tab tom nrhiav cov polymer uas muaj zog dua (piv txwv li, vs Polyamide) hauv kev siv engineering lossis tsuas yog nrhiav qhov zoo dua hauv cov fwj tshuab (vs. PET). -
Polyethylene (PE) yog dab tsi?
Polyethylene (PE), tseem hu ua polythene lossis polyethene, yog ib qho ntawm cov yas siv ntau tshaj plaws hauv ntiaj teb. Polyethylenes feem ntau muaj cov qauv linear thiab paub tias yog cov polymers ntxiv. Daim ntawv thov tseem ceeb ntawm cov polymers hluavtaws no yog nyob rau hauv kev ntim khoom. Polyethelene feem ntau yog siv los ua cov hnab yas, lub raj mis, cov yeeb yaj kiab yas, cov thawv, thiab geomembranes. Nws tuaj yeem sau tseg tias ntau dua 100 lab tonnes ntawm polyethene raug tsim tawm txhua xyoo rau kev lag luam thiab kev lag luam. -
Kev tshuaj xyuas txog kev ua haujlwm ntawm kuv lub teb chaws PVC kev lag luam xa tawm hauv thawj ib nrab ntawm xyoo 2022.
Nyob rau thawj ib nrab ntawm xyoo 2022, kev lag luam xa khoom PVC tau nce ntxiv txhua xyoo. Hauv thawj peb lub hlis twg, cuam tshuam los ntawm kev lag luam thoob ntiaj teb thiab kev sib kis, ntau lub tuam txhab xa khoom hauv tsev tau qhia tias qhov kev thov rau cov disks sab nraud tau txo qis. Txawm li cas los xij, txij li thaum pib lub Tsib Hlis, nrog kev txhim kho ntawm qhov xwm txheej sib kis thiab ntau yam kev ntsuas uas tsoomfwv Suav tau qhia los txhawb kev rov qab los ntawm kev lag luam, qhov kev ua haujlwm ntawm cov tuam txhab tsim khoom PVC hauv tsev tau siab heev, kev lag luam xa khoom PVC tau sov so, thiab qhov kev thov rau cov disks sab nraud tau nce ntxiv. Tus lej qhia txog qee qhov kev loj hlob, thiab kev ua tau zoo ntawm kev ua lag luam tau zoo dua piv rau lub sijhawm dhau los. -
PVC siv rau dab tsi?
Polyvinyl chloride (PVC, lossis vinyl) pheej yig thiab siv tau ntau yam yog siv rau ntau yam kev siv hauv kev tsim kho, kev kho mob, khoom siv hluav taws xob, tsheb thiab lwm yam khoom, hauv cov khoom xws li cov kav dej thiab cov ntaub thaiv sab nraud, cov hnab ntshav thiab cov yeeb nkab, rau cov xov hlau thiab cov xov hlau rwb thaiv tsev, cov khoom siv ntawm lub iav pem hauv ntej thiab ntau ntxiv. -
Hainan Refinery qhov project nthuav dav ethylene thiab refining lab-tonn yuav raug xa mus.
Qhov project Hainan Refining and Chemical Ethylene thiab qhov project Refining Reconstruction and Expansion nyob hauv Yangpu Economic Development Zone, nrog rau tag nrho cov peev txheej ntau dua 28 billion yuan. Txog rau tam sim no, kev tsim kho tag nrho tau mus txog 98%. Tom qab qhov project tiav thiab muab tso rau hauv kev tsim khoom, nws xav tias yuav tsav ntau dua 100 billion yuan ntawm cov lag luam downstream. Olefin Feedstock Diversification thiab High-end Downstream Forum yuav muaj nyob rau hauv Sanya rau lub Xya Hli 27-28. Nyob rau hauv qhov xwm txheej tshiab, kev tsim cov project loj xws li PDH, thiab ethane cracking, yav tom ntej sib txawv ntawm cov thev naus laus zis tshiab xws li roj av ncaj qha mus rau olefins, thiab tiam tshiab ntawm thee / methanol rau olefins yuav raug tham. -
MIT: Cov khoom me me Polylactic-glycolic acid copolymer ua cov tshuaj tiv thaiv kab mob "txhim kho tus kheej".
Cov kws tshawb fawb ntawm Massachusetts Institute of Technology (MIT) tau tshaj tawm hauv phau ntawv xov xwm Science Advances tsis ntev los no tias lawv tab tom tsim ib koob tshuaj tiv thaiv kab mob uas txhawb nqa tus kheej. Tom qab txhaj tshuaj tiv thaiv kab mob rau hauv tib neeg lub cev, nws tuaj yeem tso tawm ntau zaus yam tsis tas yuav txhaj tshuaj ntxiv. Cov tshuaj tiv thaiv kab mob tshiab no xav tias yuav siv rau cov kab mob xws li mob qhua pias mus txog Covid-19. Muaj kev tshaj tawm tias cov tshuaj tiv thaiv kab mob tshiab no yog ua los ntawm cov khoom me me poly(lactic-co-glycolic acid) (PLGA). PLGA yog ib qho khoom siv polymer organic uas lwj tau, uas tsis muaj tshuaj lom thiab muaj kev sib raug zoo zoo. Nws tau pom zoo rau kev siv rau hauv Implants, sutures, kho cov ntaub ntawv, thiab lwm yam.