Xov xwm
-
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 mob 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 lag luam hauv tsev calcium carbide tsis txuas ntxiv qhov kev hloov pauv dav dav hauv xyoo 2021. Kev ua lag luam tag nrho yog nyob ze ntawm tus nqi kab, thiab nws tau 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 lag luam xav tau txwv.Nws yog ib qho nyuaj rau cov lag luam chlor-alkali uas yuav cov calcium carbide kom muaj kev ruaj khov rau lub sijhawm ntev. -
Kev tawg tshwm sim hauv PVC reactor ntawm petrochemical loj hauv Middle East!
Lub tuam txhab Turkish petrochemical loj heev Petkim tshaj tawm tias yav tsaus ntuj ntawm Lub Rau Hli 19, 2022, qhov tawg tau tshwm sim ntawm Aliaga cog.qhov kev huam yuaj tshwm sim nyob rau hauv lub Hoobkas PVC reactor, tsis muaj leej twg raug mob, hluav taws kub tswj tau sai heev, tab sis lub PVC chav tsev tej zaum yuav ib ntus offline vim qhov kev huam yuaj.Qhov kev tshwm sim yuav muaj kev cuam tshuam ntau dua rau European PVC chaw ua lag luam.Nws tau tshaj tawm tias vim tias tus nqi ntawm PVC hauv Suav teb yog qis dua li ntawm Qaib Cov Txwv cov khoom siv hauv tsev, thiab cov nqi ntawm PVC hauv Tebchaws Europe yog siab dua li hauv Qaib Cov Txwv, feem ntau ntawm Petkim cov khoom PVC tam sim no raug xa tawm mus rau European lag luam. -
BASF tsim PLA-coated qhov cub tais!
Thaum Lub Rau Hli 30, 2022, BASF thiab Australian cov chaw tsim khoom ntim khoom noj Confoil tau koom tes los tsim cov ntawv pov thawj compostable, dual-function cub-phooj ywg zaub mov tais - DualPakECO®.Sab hauv ntawm daim ntawv tais yog coated nrog BASF's ecovio® PS1606, kev ua tau zoo ntawm cov khoom siv bioplastic ua lag luam los ntawm BASF.Nws yog cov yas rov ua dua tshiab biodegradable (70% cov ntsiab lus) sib xyaw nrog BASF cov khoom lag luam ecoflex thiab PLA, thiab tshwj xeeb yog siv los tsim cov coatings rau cov ntawv lossis cov ntawv ntim khoom noj.Lawv muaj qhov cuam tshuam zoo rau cov rog, kua thiab tsw thiab tuaj yeem txuag cov pa hluav taws xob hauv tsev. -
Siv polylactic acid fibers rau cov khaub ncaws hauv tsev kawm ntawv.
Fengyuan Bio-Fiber tau koom tes nrog Fujian Xintongxing siv polylactic acid fiber rau tsev kawm ntawv cov ntaub.Nws zoo heev noo noo nqus thiab nqus dej ua haujlwm yog 8 npaug ntawm cov polyester fibers zoo tib yam.PLA fiber ntau muaj peev xwm tiv thaiv kab mob zoo dua li lwm cov fibers.Lub curling resilience ntawm fiber ntau ncav cuag 95%, uas yog qhov zoo dua li lwm cov tshuaj fiber ntau.Tsis tas li ntawd, cov ntaub ua los ntawm polylactic acid fiber ntau yog cov tawv nqaij-phooj ywg thiab noo noo-pov thawj, sov thiab ua pa, thiab nws tuaj yeem tiv thaiv kab mob thiab mites, thiab ua nplaim taws thiab tiv thaiv hluav taws.Cov khaub ncaws hauv tsev kawm ntawv ua los ntawm cov ntaub no zoo ib puag ncig, nyab xeeb thiab xis dua. -
Nanning tshav dav hlau: Tshem tawm cov tsis-degradable, thov nkag mus rau degradable
Lub tshav dav hlau Nanning tau tshaj tawm "Nanning Tshav Dav Hlau Yas Txhaum Cai thiab Kev Tswj Xyuas Kev Tswj Xyuas Kev Tswj Xyuas" txhawm rau txhawb kev siv cov khoom siv hluav taws xob hauv lub tshav dav hlau.Tam sim no, tag nrho cov khoom yas uas tsis yog degradable tau raug hloov nrog cov khoom siv degradable hauv cov khw muag khoom noj khoom haus, cov khw noj mov, cov chaw so cov neeg caij tsheb, cov chaw nres tsheb thiab lwm qhov chaw hauv lub tsev davhlau ya nyob twg, thiab cov neeg caij tsheb hauv tsev tau tso tseg cov khoom siv pov tseg uas tsis yog-degradable, nplawm sticks. , ntim hnab, siv cov khoom degradable lossis lwm yam khoom siv.Ua kom paub txog "kev tshem tawm" ntawm cov khoom yas uas tsis yog degradable, thiab "thov tuaj rau hauv" rau lwm txoj hauv kev zoo. -
PP resin 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.Polypropylene kuj hu ua polypropene, yog cov thermoplastic polymer siv nyob rau hauv ntau yam kev siv.Nws yog tsim los ntawm saw-loj hlob polymerization los ntawm monomer propylene.Polypropylene belongs rau pawg ntawm polyolefins thiab yog ib nrab crystalline thiab tsis-polar.Nws cov khoom zoo ib yam li polyethylene, tab sis nws yog ib qho nyuaj me ntsis thiab ua kom sov dua.Nws yog ib qho dawb, cov khoom siv rugged thiab muaj tshuaj lom neeg ua haujlwm siab. -
2022 "Cov Khoom Tseem Ceeb Petrochemical Peev Xwm Ceeb Toom Thaum Ntxov" tso tawm!
1. Nyob rau xyoo 2022, kuv lub tebchaws yuav dhau los ua lub tebchaws loj tshaj plaws hauv lub ntiaj teb;2. Cov khoom siv petrochemical tseem ceeb tseem nyob rau lub sijhawm ua haujlwm siab;3. Kev siv peev txheej ntawm qee cov khoom siv tshuaj lom neeg tau raug txhim kho;4. Txoj kev vam meej ntawm kev lag luam chiv tau rov zoo dua;5. Niaj hnub nimno thee chemical kev lag luam ushered nyob rau hauv txoj kev loj hlob;6. Polyolefin thiab polycarbon yog nyob rau ntawm qhov kawg ntawm lub peev xwm nthuav dav;7. hnyav dhau ntawm cov roj hmab hluavtaws;8. Qhov nce hauv kuv lub teb chaws cov khoom xa tawm polyurethane khaws cov kev khiav hauj lwm ntawm cov cuab yeej ntawm qib siab;9. Ob qho khoom siv thiab kev thov ntawm lithium hlau phosphate tau loj hlob sai. -
Cov khoom muag txuas ntxiv mus ntxiv, PVC raug kev puas tsuaj ntau yam.
Tsis ntev los no, domestic ex-Factory nqi ntawm PVC tau poob sharply, cov nyiaj tau los ntawm kev sib xyaw PVC yog meager, thiab cov nyiaj tau los ntawm ob tons ntawm cov lag luam tau txo qis.Raws li lub lim tiam tshiab ntawm Lub Xya Hli 8, cov tuam txhab hauv tsev tau txais kev txiav txim xa tawm tsawg dua, thiab qee lub tuam txhab tsis muaj kev lag luam thiab nug tsawg dua.Tianjin Chaw nres nkoj kwv yees FOB yog US $ 900, cov nyiaj tau los xa tawm yog US $ 6,670, thiab tus nqi ntawm ex-factory tsheb thauj mus los rau Tianjin Chaw nres nkoj yog li 6,680 US las.Kev ntshai hauv tsev thiab kev hloov pauv sai.Txhawm rau txo qis kev muag khoom, kev xa tawm yuav tsum tau ua tiav, thiab qhov nrawm ntawm kev yuav khoom tau qeeb rau txawv teb chaws.
