Sodium yaj tau hauv dejcarboxymethyl cellulose, methyl cellulose, hydroxypropyl methyl cellulose, hydroxypropyl cellulose, hydroxyethyl cellulose thiab roj-soluble ethyl cellulose yog siv los ua Adhesives, disintegrants, cov ntaub ntawv tso tawm thiab tswj tau rau kev npaj qhov ncauj, cov neeg sawv cev txheej zaj duab xis, cov ntaub ntawv capsule thiab cov neeg sawv cev ncua yog siv rau hauv cov tshuaj excipients. Saib lub ntiaj teb, ntau lub tuam txhab txawv teb chaws txawv teb chaws (Shin-Etsu Nyiv, Dow Wolfe thiab Ashland Cross Dragon) tau pom lub lag luam loj yav tom ntej ntawm cov tshuaj cellulose hauv Suav teb, txawm tias nce kev tsim khoom lossis kev sib koom ua ke, thiab tau nce lawv cov kev siv zog hauv daim teb no. daim ntawv thov cov tswv yim hauv. Dow Wolfe tshaj tawm tias nws yuav txhawb nws txoj kev tsom mus rau kev tsim cov tshuaj, cov khoom xyaw thiab kev thov ntawm kev ua lag luam tshuaj Suav teb, thiab nws cov kev tshawb fawb thov kuj tseem yuav siv zog kom ze rau kev ua lag luam. Dow Chemical Wolff Cellulose Division thiab Colorcon Corporation ntawm Tebchaws Meskas tau tsim kom muaj kev sib koom ua ke tsim cov tshuaj tso tawm thiab tswj tau thoob ntiaj teb, nrog ntau dua 1,200 tus neeg ua haujlwm hauv 9 lub nroog, 15 lub tsev kawm ntawv thiab 6 lub tuam txhab GMP, ntau tus kws tshaj lij kev tshawb fawb thov pab cov neeg siv khoom hauv kwv yees li 160 lub tebchaws. Ashland muaj cov chaw tsim khoom hauv Beijing, Tianjin, Shanghai, Nanjing, Changzhou, Kunshan thiab Jiangmen, thiab tau nqis peev rau peb lub chaw tshawb fawb txog kev siv tshuab hauv Shanghai thiab Nanjing.
Raws li cov ntaub ntawv 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 ntim muag khoom yog 360,000 tons. Xyoo 2017, qhov ntim muag khoom tiag tiag ntawm ionic CMC yog 234,000 tons, nce ntxiv ntawm 18.61% xyoo-rau-xyoo, thiab qhov ntim muag khoom ntawm cov tsis-ionicCMCyog 126,000 tons, nce 8.2% xyoo-rau-xyoo. Ntxiv rau HPMC (qib khoom siv hauv tsev), cov khoom tsis-ionic, HPMC (qib tshuaj),HPMC(qib zaub mov),HEC, HPC, MC, HEMC, thiab lwm yam tau tawm tsam qhov sib txawv thiab lawv cov khoom tsim tawm thiab kev muag khoom tau txuas ntxiv mus ntxiv. Cov cellulose ether hauv tsev 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 feem ntau cov tuam txhab cellulose ether feem ntau yog siv rau hauv cov teb nruab nrab thiab qis kawg ntawm kev lag luam, thiab tus nqi ntxiv tsis siab.
Tam sim no, feem ntau cov tuam txhab cellulose ether hauv tsev nyob rau lub sijhawm tseem ceeb ntawm kev hloov pauv thiab kev txhim kho. Lawv yuav tsum txuas ntxiv nce kev tshawb fawb thiab kev txhim kho khoom, txuas ntxiv nplua nuj ntau yam khoom, siv tag nrho Tuam Tshoj, lub ntiaj teb kev lag luam loj tshaj plaws, thiab nce kev siv zog los tsim cov lag luam txawv teb chaws, yog li cov tuam txhab tuaj yeem ua tiav kev hloov pauv thiab kev txhim kho sai sai, nkag mus rau hauv thaj chaw nruab nrab thiab qib siab ntawm kev lag luam, thiab ua tiav kev txhim kho zoo thiab ntsuab.
Lub sijhawm tshaj tawm: Plaub Hlis-25-2024