Raws li tsab ntawv tshaj tawm tshiab los ntawm IHS Markit, kev siv thoob ntiaj teb ntawmcellulose ether-a dej-soluble polymer tsim los ntawm kev hloov kho tshuaj ntawm cellulose - yog ze li ntawm 1.1 lab tons hauv 2018. Ntawm tag nrho lub ntiaj teb cellulose ether tsim nyob rau hauv 2018, 43% yog los ntawm Asia (Tuam Tshoj suav rau 79% ntawm cov neeg Esxias ntau lawm), Western Europe suav txog 36%, thiab North America suav txog 8%. Raws li IHS Markit, kev noj cov cellulose ether yuav tsum loj hlob ntawm qhov nruab nrab txhua xyoo ntawm 2.9% los ntawm 2018 txog 2023. Lub sijhawm no, qhov kev thov loj hlob ntawm cov lag luam loj hauv North America thiab Western Europe yuav qis dua lub ntiaj teb nruab nrab, 1.2% thiab 1.3% raws li. , thaum qhov kev loj hlob ntawm kev thov hauv Asia thiab Oceania yuav siab dua qhov nruab nrab ntawm lub ntiaj teb, ntawm 3.8%; Kev loj hlob tus nqi ntawm kev thov hauv Suav teb yuav yog 3.4%, thiab kev loj hlob ntawm Central thiab Eastern Europe yuav tsum yog 3.8%.
Xyoo 2018, thaj av uas muaj kev noj ntau tshaj plaws ntawm cellulose ether hauv ntiaj teb yog Asia, suav txog 40% ntawm tag nrho cov kev siv, thiab Tuam Tshoj yog lub zog tsav tsheb loj. Western Europe thiab North America suav txog 19% thiab 11% ntawm kev siv thoob ntiaj teb, feem.Carboxymethyl cellulose (CMC)suav txog 50% ntawm tag nrho cov kev siv ntawm cellulose ethers hauv 2018, tab sis nws txoj kev loj hlob yuav tsum qis dua li ntawm cellulose ethers tag nrho yav tom ntej.Methylcellulose (MC) Hydroxypropyl methyl cellulose (HPMC)suav rau 33% ntawm tag nrho cov kev siv,Hydroxyethyl Cellulose (HEC)suav txog 13%, thiab lwm yam cellulose ethers suav txog li 3%.
Raws li tsab ntawv ceeb toom, cellulose ethers yog dav siv nyob rau hauv thickeners, adhesives, emulsifiers, humectants, thiab viscosity tswj cov neeg sawv cev. Cov ntawv thov kawg suav nrog cov sealants thiab grouts, khoom noj khoom haus, xim thiab txheej, nrog rau cov tshuaj noj thiab tshuaj noj. Ntau yam cellulose ethers kuj sib tw nrog ntau lub lag luam hauv kev lag luam, thiab nrog rau lwm cov khoom lag luam uas muaj cov haujlwm zoo sib xws, xws li hluavtaws dej-soluble polymers thiab ntuj dej-soluble polymers. Synthetic water-soluble polymers muaj xws li polyacrylates, polyvinyl alcohols, thiab polyurethanes, thaum ntuj dej-soluble polymers feem ntau muaj xws li xanthan gum, carrageenan, thiab lwm yam pos hniav. Nyob rau hauv ib daim ntawv thov tshwj xeeb, uas polymer cov neeg siv khoom kawg xaiv yuav nyob ntawm qhov kev sib pauv ntawm qhov muaj, kev ua tau zoo thiab tus nqi, thiab cov txiaj ntsig ntawm kev siv.
Hauv 2018, tag nrho lub ntiaj teb carboxymethylcellulose (CMC) kev ua lag luam tau mus txog 530,000 tons, uas tuaj yeem muab faib ua qib kev lag luam (Tshuag tov), qib semi-purified thiab qib siab purity. Qhov tseem ceeb tshaj plaws ntawm kev siv CMC yog cov tshuaj ntxuav tes, siv qib CMC, suav txog li 22% ntawm kev siv; roj daim ntawv thov accounting txog li 20%; zaub mov additives accounting txog li 13%. Hauv ntau thaj tsam, CMC cov kev lag luam tseem ceeb yog cov paub tab, tab sis qhov kev thov los ntawm kev lag luam roj yog qhov hloov pauv thiab txuas nrog cov nqi roj. CMC tseem ntsib kev sib tw los ntawm lwm yam khoom, xws li hydrocolloids, uas tuaj yeem muab kev ua tau zoo tshaj plaws hauv qee qhov kev siv. Kev thov rau cellulose ethers uas tsis yog CMC yuav raug tsav los ntawm kev tsim kho siv, suav nrog cov txheej txheej saum npoo av, nrog rau cov khoom noj, tshuaj thiab daim ntawv thov kev saib xyuas tus kheej, IHS Markit tau hais.
Raws li IHS Markit tsab ntawv ceeb toom, CMC kev lag luam kev lag luam tseem muaj kev sib cais, nrog rau tsib tus neeg tsim khoom loj tshaj plaws suav nrog tsuas yog 22% ntawm tag nrho cov peev txheej. Tam sim no, Suav lag luam-qib CMC cov neeg tsim khoom ua lag luam, suav txog 48% ntawm tag nrho cov peev txheej. Kev tsim khoom ntawm purification qib CMC kev lag luam yog qhov tseem ceeb, thiab cov tuam txhab loj tshaj plaws muaj peev xwm tsim tau tag nrho ntawm 53%.
Kev sib tw toj roob hauv pes ntawm CMC txawv ntawm lwm cov cellulose ethers. Qhov chaw pib yog qhov tsawg, tshwj xeeb tshaj yog rau cov khoom lag luam-qib CMC nrog purity ntawm 65% ~ 74%. Kev ua lag luam rau cov khoom zoo li no tau tawg ntau dua thiab ua tiav los ntawm Tuam Tshoj cov tuam txhab. Kev lag luam rau qib purifiedCMCyog ntau concentrated, uas muaj ib tug purity ntawm 96% los yog siab dua. Nyob rau hauv 2018, lub ntiaj teb no noj cellulose ethers uas tsis yog CMC yog 537,000 tons, feem ntau yog siv nyob rau hauv kev tsim kho kev lag luam, accounting rau 47%; daim ntawv thov kev lag luam khoom noj thiab tshuaj suav txog 14%; nto txheej kev lag luam suav txog 12%. Kev ua lag luam rau lwm cov cellulose ethers yog ntau concentrated, nrog rau sab saum toj tsib producers ua ke accounting rau 57% ntawm lub ntiaj teb no ntau lawm muaj peev xwm.
Zuag qhia tag nrho, daim ntawv thov kev cia siab ntawm cellulose ethers hauv cov khoom noj thiab kev saib xyuas tus kheej yuav tuav lub zog loj hlob. Raws li cov neeg siv khoom xav tau cov khoom noj muaj txiaj ntsig zoo nrog cov roj tsawg thiab qab zib cov ntsiab lus tseem yuav loj hlob ntxiv, txhawm rau kom tsis txhob muaj peev xwm ua xua xws li gluten, yog li muab lub sijhawm ua lag luam rau cellulose ethers, uas tuaj yeem muab cov haujlwm xav tau, tsis muaj kev cuam tshuam saj lossis kev ntxhib los mos. Hauv qee qhov kev siv, cellulose ethers kuj ntsib kev sib tw los ntawm fermentation-derived thickeners, xws li cov pos hniav ntau dua.
Lub sij hawm xa tuaj: Plaub Hlis-25-2024