Dej-soluble sodiumcarboxymethyl cellulose, methyl cellulose, hydroxypropyl methyl cellulose, hydroxypropyl cellulose, hydroxyethyl cellulose thiab roj-soluble ethyl cellulose yog tag nrho cov siv los ua Adhesives, disintegrants, sustained thiab tswj tso tawm cov ntaub ntawv rau qhov ncauj npaj, txheej zaj duab xis-forming agents, capsule cov ntaub ntawv thiab suspending agents. Saib ntawm lub ntiaj teb, ntau lub tuam txhab txawv teb chaws txawv teb chaws (Shin-Etsu Nyiv, Dow Wolfe thiab Ashland Cross Dragon) tau paub txog lub lag luam loj yav tom ntej ntawm cov tshuaj cellulose hauv Suav teb, nce ntau lawm lossis kev sib koom ua ke, thiab tau nce lawv cov kev siv zog hauv daim teb no. daim ntawv thov nkag rau hauv. Dow Wolfe tshaj tawm tias nws yuav ntxiv dag zog rau nws txoj kev tsom mus rau kev tsim, cov khoom xyaw thiab kev xav tau ntawm Tuam Tshoj cov tshuaj npaj ua lag luam, thiab nws cov kev tshawb fawb tseem yuav siv zog los ze zog rau kev lag luam. Dow Chemical Wolff Cellulose Division thiab Colorcon Corporation ntawm Tebchaws Meskas tau tsim kom muaj kev txhawb nqa thiab tswj kev sib koom ua ke ntawm kev sib koom ua ke thoob ntiaj teb, nrog ntau dua 1,200 tus neeg ua haujlwm hauv 9 lub nroog, 15 lub tuam txhab cuab yeej cuab tam thiab 6 GMP tuam txhab, ntau tus kws tshaj lij kev tshawb fawb tau pab cov neeg siv khoom hauv kwv yees li 160 lub teb chaws. Ashland muaj cov chaw tsim khoom hauv Beijing, Tianjin, Shanghai, Nanjing, Changzhou, Kunshan thiab Jiangmen, thiab tau nqis peev hauv peb lub chaw tshawb fawb hauv Shanghai thiab Nanjing.
Raws li kev txheeb cais los ntawm lub vev xaib ntawm Tuam Tshoj Cellulose Association, xyoo 2017, kev tsim khoom hauv tsev ntawm cellulose ether yog 373,000 tons, thiab qhov muag ntim yog 360,000 tons. Nyob rau hauv 2017, qhov tseeb muag ntim ntawm ionic CMC yog 234,000 tons, nce 18.61% xyoo-rau-xyoo, thiab qhov muag ntim ntawm non-ionic.CMCyog 126,000 tons, nce 8.2% xyoo-rau-xyoo. Ntxiv rau HPMC (cov khoom siv hauv tsev), cov khoom tsis yog ionic, HPMC (qib tshuaj),HPMC(qib zaub mov),HEC, HPC, MC, HEMC, thiab lwm yam tau bucked tus qauv thiab lawv cov khoom thiab kev muag khoom tau nce ntxiv. Hauv tsev cellulose ether tau loj hlob sai rau ntau tshaj kaum xyoo, thiab nws cov zis tau dhau los ua thawj zaug hauv ntiaj teb. Txawm li cas los xij, cov khoom lag luam ntawm cov tuam txhab cellulose ether feem ntau yog siv nyob rau hauv nruab nrab thiab qis-kawg ntawm kev lag luam, thiab tus nqi ntxiv tsis siab.
Tam sim no, feem ntau cov lag luam hauv tsev cellulose ether yog nyob rau lub sijhawm tseem ceeb ntawm kev hloov pauv thiab hloov kho dua tshiab. Lawv yuav tsum tau ua kom cov khoom lag luam tshawb fawb thiab kev tsim kho, txuas ntxiv txhim kho ntau yam khoom, ua kom tag nrho ntawm Tuam Tshoj, lub ntiaj teb kev lag luam loj tshaj plaws, thiab nce kev siv zog los tsim kev lag luam txawv teb chaws, kom cov tuam txhab tuaj yeem ua kom tiav qhov kev hloov pauv thiab kev txhim kho sai, nkag mus rau hauv nruab nrab thiab high-end teb ntawm kev lag luam, thiab ua tiav benign thiab ntsuab kev loj hlob.
Lub sij hawm xa tuaj: Plaub Hlis-25-2024