Raws li daim ntawv tshaj tawm tshiab los ntawm IHS Markit, kev siv thoob ntiaj teb ntawmcellulose ether—ib qho polymer uas yaj tau hauv dej uas tsim los ntawm kev hloov kho tshuaj ntawm cellulose—yog ze li ntawm 1.1 lab tons hauv xyoo 2018. Ntawm tag nrho cov khoom tsim tawm thoob ntiaj teb cellulose ether hauv xyoo 2018, 43% tuaj ntawm Asia (Tuam Tshoj suav txog 79% ntawm cov khoom tsim tawm hauv Es Xias), Western Europe suav txog 36%, thiab North America suav txog 8%. Raws li IHS Markit, kev siv cellulose ether yuav loj hlob ntawm qhov nruab nrab txhua xyoo ntawm 2.9% txij li xyoo 2018 txog 2023. Thaum lub sijhawm no, qhov kev loj hlob ntawm kev thov hauv cov lag luam laus hauv North America thiab Western Europe yuav qis dua qhov nruab nrab thoob ntiaj teb, 1.2% thiab 1.3% feem. , thaum qhov kev loj hlob ntawm kev thov hauv Asia thiab Oceania yuav siab dua qhov nruab nrab thoob ntiaj teb, ntawm 3.8%; qhov kev loj hlob ntawm kev thov hauv Suav teb yuav yog 3.4%, thiab qhov kev loj hlob hauv Central thiab Eastern Europe yuav yog 3.8%.
Xyoo 2018, thaj av uas muaj kev siv cellulose ether ntau tshaj plaws hauv ntiaj teb yog Asia, suav txog 40% ntawm tag nrho cov kev siv, thiab Tuam Tshoj yog lub zog tseem ceeb. Western Europe thiab North America suav txog 19% thiab 11% ntawm kev siv thoob ntiaj teb, raws li.Carboxymethyl cellulose (CMC)suav txog 50% ntawm tag nrho cov kev siv cellulose ethers hauv xyoo 2018, tab sis nws txoj kev loj hlob yuav qis dua li ntawm cellulose ethers tag nrho yav tom ntej.Methylcellulose (MC) Hydroxypropyl methyl cellulose (HPMC)suav txog 33% ntawm tag nrho cov kev siv khoom,Hydroxyethyl Cellulose (HEC)suav txog 13%, thiab lwm yam cellulose ethers suav txog li 3%.
Raws li daim ntawv tshaj tawm, cellulose ethers siv dav hauv cov khoom ua kom tuab, cov nplaum, cov emulsifiers, cov humectants, thiab cov neeg sawv cev tswj viscosity. Cov ntawv thov kawg suav nrog cov sealants thiab grouts, khoom noj, xim thiab coatings, nrog rau cov tshuaj kho mob thiab cov khoom noj khoom haus ntxiv. Ntau yam cellulose ethers kuj sib tw nrog ib leeg hauv ntau lub khw muag khoom siv, thiab kuj nrog lwm cov khoom lag luam nrog cov haujlwm zoo sib xws, xws li cov polymers hluavtaws uas yaj hauv dej thiab cov polymers ntuj uas yaj hauv dej. Cov polymers hluavtaws uas yaj hauv dej suav nrog polyacrylates, polyvinyl alcohols, thiab polyurethanes, thaum cov polymers ntuj uas yaj hauv dej feem ntau suav nrog xanthan gum, carrageenan, thiab lwm yam pos hniav. Hauv ib daim ntawv thov tshwj xeeb, cov polymer twg tus neeg siv khoom xaiv thaum kawg yuav nyob ntawm qhov kev lag luam ntawm kev muaj, kev ua tau zoo thiab tus nqi, thiab qhov cuam tshuam ntawm kev siv.
Xyoo 2018, tag nrho cov lag luam thoob ntiaj teb carboxymethylcellulose (CMC) tau txog 530,000 tons, uas tuaj yeem muab faib ua qib kev lag luam (kev daws teeb meem), qib semi-purified thiab qib siab-purity. Kev siv kawg tseem ceeb tshaj plaws ntawm CMC yog tshuaj ntxuav tes, siv qib kev lag luam CMC, suav txog li 22% ntawm kev siv; daim ntawv thov roj teb suav txog li 20%; cov khoom noj khoom haus ntxiv suav txog li 13%. Hauv ntau thaj chaw, CMC cov lag luam tseem ceeb yog cov laus dua, tab sis kev thov los ntawm kev lag luam roj teb tsis ruaj khov thiab txuas nrog tus nqi roj. CMC kuj ntsib kev sib tw los ntawm lwm cov khoom, xws li hydrocolloids, uas tuaj yeem muab kev ua tau zoo dua hauv qee daim ntawv thov. Kev thov rau cellulose ethers uas tsis yog CMC yuav raug tsav los ntawm kev siv kawg ntawm kev tsim kho, suav nrog cov txheej txheem saum npoo av, nrog rau cov khoom noj khoom haus, tshuaj thiab kev saib xyuas tus kheej, IHS Markit tau hais.
Raws li daim ntawv tshaj tawm IHS Markit, kev lag luam CMC tseem muaj kev sib cais me ntsis, nrog rau tsib lub tuam txhab tsim khoom loj tshaj plaws tsuas yog suav txog 22% ntawm tag nrho cov peev xwm. Tam sim no, cov neeg tsim khoom lag luam CMC hauv Suav teb tswj hwm kev lag luam, suav txog 48% ntawm tag nrho cov peev xwm. Kev tsim khoom ntawm kev lag luam CMC qib purification yog qhov sib sau ua ke, thiab tsib lub tuam txhab tsim khoom loj tshaj plaws muaj tag nrho cov peev xwm tsim khoom ntawm 53%.
Qhov kev sib tw ntawm CMC txawv ntawm lwm cov cellulose ethers. Qhov txwv tsis pub tsawg, tshwj xeeb tshaj yog rau cov khoom lag luam CMC nrog qhov huv ntawm 65% ~ 74%. Kev ua lag luam rau cov khoom zoo li no yog fragmented ntau dua thiab dominated los ntawm cov tuam txhab tsim khoom hauv Suav teb. Kev ua lag luam rau qib purifiedCMCmuaj ntau dua concentrated, uas muaj qhov huv ntawm 96% lossis siab dua. Xyoo 2018, kev siv thoob ntiaj teb ntawm cellulose ethers uas tsis yog CMC yog 537,000 tons, feem ntau yog siv rau hauv kev lag luam kev tsim kho, suav txog 47%; kev siv khoom noj thiab tshuaj lag luam suav txog 14%; kev lag luam txheej saum npoo suav txog 12%. Kev ua lag luam rau lwm cov cellulose ethers muaj ntau dua, nrog rau tsib tus neeg tsim khoom saum toj kawg nkaus ua ke suav txog 57% ntawm lub peev xwm tsim khoom thoob ntiaj teb.
Zuag qhia tag nrho, daim ntawv thov ntawm cellulose ethers hauv kev lag luam zaub mov thiab kev saib xyuas tus kheej yuav tswj hwm kev loj hlob. Raws li kev thov ntawm cov neeg siv khoom rau cov khoom noj khoom haus zoo dua nrog cov rog tsawg dua thiab qab zib yuav txuas ntxiv mus loj hlob, txhawm rau kom tsis txhob muaj cov khoom ua xua xws li gluten, yog li muab cov sijhawm ua lag luam rau cellulose ethers, uas tuaj yeem muab cov haujlwm xav tau, yam tsis muaj kev cuam tshuam rau saj lossis kev ntxhib los mos. Hauv qee qhov kev siv, cellulose ethers kuj ntsib kev sib tw los ntawm cov khoom ua kom tuab, xws li cov pos hniav ntuj ntau dua.
Lub sijhawm tshaj tawm: Plaub Hlis-25-2024