Xov xwm kev lag luam
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Mars M Taum tso tawm biodegradable PLA composite ntawv ntim hauv Suav teb.
Xyoo 2022, Mars tau tshaj tawm thawj M & M's chocolate ntim rau hauv cov ntawv sib xyaw degradable hauv Suav teb. Nws yog ua los ntawm cov ntaub ntawv degradable xws li ntawv thiab PLA, hloov cov khoom ntim yas yas qub qub. Kev ntim khoom tau dhau GB / T Txoj kev txiav txim siab ntawm 19277.1 tau tshawb xyuas tias nyob rau hauv cov txheej txheem kev tsim khoom, nws tuaj yeem degrade ntau dua 90% hauv 6 lub hlis, thiab nws yuav dhau los ua cov dej tsis muaj tshuaj lom, carbon dioxide thiab lwm yam khoom tom qab degradation. cov -
Tuam Tshoj tus PVC xa tawm tseem siab nyob rau hauv thawj ib nrab ntawm lub xyoo.
Raws li qhov tseeb kev lis kev cai txheeb cais, nyob rau hauv Lub rau hli ntuj 2022, kuv lub teb chaws lub ntshuam ntawm PVC ntshiab hmoov yog 29,900 tons, nce 35.47% ntawm lub hli dhau los thiab ib xyoo-rau-xyoo nce ntawm 23.21%; Nyob rau lub Rau Hli 2022, kuv lub teb chaws PVC ntshiab hmoov export ntim yog 223,500 tons, Lub hli-rau-hli poob yog 16%, thiab xyoo-rau-xyoo nce yog 72.50%. Lub ntim export txuas ntxiv kom muaj qib siab, uas txo qis cov khoom lag luam ntau hauv kev lag luam hauv tsev mus rau qee yam. -
Polypropylene (PP) yog dab tsi?
Polypropylene (PP) yog ib qho tawv, tawv, thiab crystalline thermoplastic. Nws yog tsim los ntawm propene (los yog propylene) monomer. Qhov no linear hydrocarbon resin yog lub lightest polymer ntawm tag nrho cov khoom yas. PP tuaj yeem ua homopolymer lossis ua copolymer thiab tuaj yeem txhawb nqa zoo nrog cov khoom ntxiv. Nws pom daim ntawv thov hauv ntim, tsheb, neeg siv khoom zoo, kev kho mob, cam khwb cia zaj duab xis, thiab lwm yam. PP tau dhau los ua cov khoom xaiv, tshwj xeeb tshaj yog thaum koj tab tom nrhiav rau cov khoom siv polymer nrog lub zog zoo (xws li, vs Polyamide) hauv kev siv engineering lossis tsuas yog nrhiav. tus nqi kom zoo dua hauv tshuab moulding fwj (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. Polyethylene feem ntau muaj cov qauv linear thiab paub tias yog cov polymers ntxiv. Thawj daim ntawv thov ntawm cov hluavtaws polymers yog nyob rau hauv ntim. Polyethelyne feem ntau yog siv los ua cov hnab yas, lub raj mis, yas zaj duab xis, ntim, thiab geomembranes. Nws tuaj yeem raug sau tseg tias ntau dua 100 lab tonnes ntawm polyethene yog tsim txhua xyoo rau kev lag luam thiab kev lag luam. -
Kev soj ntsuam ntawm kev ua haujlwm ntawm kuv lub teb chaws PVC xa tawm lag luam hauv thawj ib nrab xyoo 2022.
Hauv thawj ib nrab ntawm 2022, PVC xa tawm kev lag luam tau nce xyoo-rau-xyoo. Hauv thawj peb lub hlis twg, cuam tshuam los ntawm kev lag luam thoob ntiaj teb kev lag luam thiab kev sib kis, ntau lub tuam txhab xa tawm hauv tsev tau qhia tias qhov kev thov rau cov khoom siv sab nraud tau txo qis. Txawm li cas los xij, txij li thaum pib lub Tsib Hlis, nrog rau kev txhim kho ntawm cov xwm txheej sib kis thiab cov kev ntsuas tau qhia los ntawm tsoomfwv Suav los txhawb kev lag luam rov qab los, kev ua haujlwm ntawm cov tuam txhab tsim khoom hauv tsev PVC tau nce siab, PVC export kev lag luam tau sov so. , thiab qhov kev thov rau sab nraud disks tau nce. Tus lej qhia txog qee yam kev loj hlob, thiab kev ua haujlwm tag nrho ntawm kev ua lag luam tau zoo dua piv nrog rau lub sijhawm dhau los. -
Dab tsi yog PVC siv rau?
Kev lag luam, ntau yam polyvinyl chloride (PVC, lossis yas) yog siv rau ntau yam kev siv hauv lub tsev thiab kev tsim kho, kev kho mob, hluav taws xob, tsheb thiab lwm yam, hauv cov khoom xws li cov kav dej thiab sab hauv, cov hnab ntim ntshav thiab tubing, mus rau hlau thiab cable rwb thaiv tsev, windshield system Cheebtsam thiab lwm yam. cov -
Hainan Refinery's lab-tuj ethylene thiab refining expansion project tab tom yuav raug xa mus.
Lub Hainan Refining thiab Chemical Ethylene Project thiab Refining Reconstruction thiab Expansion Project yog nyob rau hauv Yangpu Economic Development Zone, nrog rau tag nrho cov peev ntawm ntau tshaj 28 billion yuan. Txog rau tam sim no, tag nrho cov kev tsim kho tau nce mus txog 98%. Tom qab qhov project tiav thiab muab tso rau hauv kev tsim khoom, nws xav tias yuav tsav ntau tshaj 100 billion yuan ntawm downstream industries. Olefin Feedstock Diversification thiab High-end Downstream Forum yuav muaj nyob rau hauv Sanya thaum Lub Xya Hli 27-28. Raws li qhov xwm txheej tshiab, txoj kev loj hlob ntawm cov phiaj xwm loj xws li PDH, thiab ethane tawg, lub neej yav tom ntej ntawm cov thev naus laus zis tshiab xws li cov roj av ncaj qha rau olefins, thiab cov tiam tshiab ntawm thee / methanol rau olefins yuav tau tham. cov -
MIT: Polylactic-glycolic acid copolymer microparticles ua "kev txhim kho tus kheej" tshuaj tiv thaiv.
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 cov tshuaj tiv thaiv tus kheej ib zaug. Tom qab txhaj tshuaj tiv thaiv rau tib neeg lub cev, nws tuaj yeem tso tawm ntau zaus yam tsis tas yuav txhaj koob tshuaj. Cov tshuaj tiv thaiv tshiab yuav tsum tau siv los tiv thaiv kab mob xws li qhua pias mus rau Covid-19. Nws tau tshaj tawm tias cov tshuaj tiv thaiv tshiab no yog tsim los ntawm poly (lactic-co-glycolic acid) (PLGA) hais. PLGA yog ib tug degradable functional polymer organic compound, uas yog non-toxic thiab muaj biocompatibility zoo. Nws tau raug pom zoo siv rau hauv Implants, sutures, kho cov ntaub ntawv, thiab lwm yam -
Yuneng Chemical tuam txhab: Thawj industrialized ntau lawm ntawm sprayable polyethylene!
Tsis ntev los no, LLDPE chav tsev ntawm Polyolefin Center ntawm Yuneng Chemical Company tau ua tiav ua tiav DFDA-7042S, cov khoom siv polyethylene sprayable. Nws yog to taub hais tias cov khoom sprayable polyethylene yog ib yam khoom uas tau los ntawm kev loj hlob sai ntawm downstream processing technology. Cov khoom siv tshwj xeeb polyethylene nrog kev ua haujlwm txau ntawm qhov chaw daws teeb meem ntawm cov xim tsis zoo ntawm polyethylene thiab muaj gloss siab. Cov khoom siv tuaj yeem siv rau hauv kev kho kom zoo nkauj thiab kev tiv thaiv, haum rau cov menyuam yaus cov khoom, lub tsheb sab hauv, cov ntaub ntawv ntim khoom, nrog rau cov chaw tsim khoom loj thiab kev ua liaj ua teb, cov khoom ua si, txoj kev guardrails, thiab lwm yam. cov -
Petronas 1.65 lab tons ntawm polyolefin tab tom yuav rov qab mus rau Asian lag luam!
Raws li cov xov xwm tshiab kawg, Pengerang hauv Johor Bahru, Malaysia, tau rov pib dua nws 350,000-tuj / xyoo linear low-density polyethylene (LLDPE) chav nyob rau lub Xya hli ntuj 4, tab sis chav tsev yuav siv sij hawm ib pliag kom ua tiav cov haujlwm ruaj khov. Tsis tas li ntawd, nws cov tshuab Spheripol 450,000 tons / xyoo polypropylene (PP) cog, 400,000 tons / xyoo high-density polyethylene (HDPE) cog thiab Spherizone thev naus laus zis 450,000 tons / xyoo polypropylene (PP) cog kuj tseem xav tias yuav nce ntxiv txij lub hlis no kom rov pib dua. Raws li Argus 'kev ntsuam xyuas, tus nqi ntawm LLDPE nyob rau sab hnub tuaj Asia yam tsis tau them se rau lub Xya hli ntuj 1 yog US $ 1360-1380 / tuj CFR, thiab tus nqi ntawm PP hlau kos duab nyob rau sab hnub tuaj Asia nyob rau lub Xya hli ntuj 1 yog US $ 1270-1300 / tuj CFR yam tsis muaj se. . -
Cov luam yeeb hloov mus rau biodegradable yas ntim hauv Is Nrias teb.
Is Nrias teb txoj kev txwv tsis pub siv 19 yam khoom siv ib leeg tau ua rau muaj kev hloov pauv hauv nws txoj kev lag luam luam yeeb. Ua ntej Lub Xya Hli 1, cov tuam txhab luam yeeb Indian tau hloov pauv lawv cov khoom ntim yas yav dhau los rau cov ntim yas biodegradable. Lub Tsev Kawm Ntawv Tobacco ntawm Is Nrias teb (TII) tau lees tias lawv cov tswv cuab tau hloov dua siab tshiab thiab cov yas biodegradable siv tau raws li cov qauv thoob ntiaj teb, nrog rau cov qauv BIS tsis ntev los no. Lawv kuj hais tias biodegradation ntawm biodegradable plastics pib nyob rau hauv kev sib cuag nrog cov av thiab ib txwm biodegrades nyob rau hauv composting yam tsis muaj stressing cov khoom khib nyiab thiab recycling systems. -
Kev soj ntsuam luv luv ntawm kev ua haujlwm ntawm Kev Ua Lag Luam Hauv Tebchaws Calcium Carbide hauv thawj ib nrab ntawm lub xyoo.
Hauv thawj ib nrab ntawm 2022, kev ua lag luam calcium carbide hauv tsev tsis txuas ntxiv qhov kev hloov pauv dav dav hauv 2021. Kev lag luam tag nrho yog nyob ze ntawm tus nqi kab, thiab nws yuav raug hloov pauv thiab hloov kho vim qhov cuam tshuam ntawm cov khoom siv raw, khoom siv thiab kev thov. , thiab downstream tej yam kev mob. Nyob rau hauv thawj ib nrab ntawm lub xyoo, tsis muaj tshiab expansion peev ntawm domestic calcium carbide txoj kev PVC cov nroj tsuag, thiab kev nce nyob rau hauv calcium carbide kev ua lag luam xav tau tsawg. Nws yog ib qho nyuaj rau cov tuam txhab chlor-alkali uas yuav cov calcium carbide kom muaj kev ruaj khov rau lub sijhawm ntev.