1. Cov yam zoo
(1) Kev txhawb nqa txoj cai
Ua ib yam khoom siv tshiab uas siv bio-based thiab ib yam khoom siv ntsuab thiab ib puag ncig zoo, daim ntawv thov dav dav ntawmcellulose etherHauv kev lag luam kev lag luam yog qhov kev txhim kho ntawm kev tsim kom muaj ib puag ncig zoo thiab txuag tau cov peev txheej yav tom ntej. Kev txhim kho ntawm kev lag luam yog raws li kuv lub teb chaws lub hom phiaj loj ntawm kev ua tiav kev txhim kho kev lag luam ruaj khov. Tsoomfwv Suav tau tshaj tawm cov cai thiab kev ntsuas xws li "National Medium and Long-Term Science and Technology Development Plan (2006-2020)" thiab "Kev Lag Luam Tsim Kho" Kaum Ob Tsib Xyoos Plan "Kev Txhim Kho" los txhawb kev lag luam cellulose ether.
Raws li "2014-2019 Tuam Tshoj Tshuaj Khoom Noj Qib Cellulose Ether Kev Tshawb Fawb Lag Luam thiab Kev Tshawb Fawb Txog Kev Nqis Peev" uas tau tshaj tawm los ntawm Tuam Tshoj Kev Lag Luam Cov Ntaub Ntawv Network, lub tebchaws kuj tau tsim cov qauv kev tiv thaiv ib puag ncig nruj, uas tau tsa qhov kev tseem ceeb ntawm cov teeb meem kev tiv thaiv ib puag ncig mus rau qib tshiab. Kev nplua loj dua rau kev ua qias tuaj ib puag ncig tau ua lub luag haujlwm zoo hauv kev daws teeb meem xws li kev sib tw tsis sib haum xeeb hauv kev lag luam cellulose ether thiab kev koom ua ke ntawm kev lag luam muaj peev xwm tsim khoom.
(2) Lub zeem muag ntawm cov ntawv thov downstream yog dav thiab qhov kev thov nce ntxiv
Cellulose ether hu ua "kev lag luam monosodium glutamate" thiab siv tau rau ntau qhov chaw ntawm lub teb chaws kev lag luam. Kev txhim kho kev lag luam yuav tsav tsheb loj hlob ntawm kev lag luam cellulose ether. Nrog rau kev txhim kho tas mus li ntawm kuv lub teb chaws txoj kev loj hlob hauv nroog thiab tsoomfwv txoj kev nqis peev muaj zog hauv cov khoom muaj nqis ruaj khov thiab vaj tse pheej yig, kev lag luam kev tsim kho thiab kev tsim kho vaj tse yuav ua rau muaj kev thov ntau ntxiv rau cellulose ether. Hauv cov teb ntawm kev kho mob thiab zaub mov, tib neeg txoj kev paub txog kev noj qab haus huv thiab kev tiv thaiv ib puag ncig maj mam nce ntxiv. Cov khoom lag luam cellulose ether uas tsis muaj teeb meem thiab tsis ua rau muaj kuab paug xws li HPMC yuav maj mam hloov lwm cov ntaub ntawv uas twb muaj lawm thiab tsim kho sai. Tsis tas li ntawd, kev siv cellulose ether hauv cov txheej txheem, ceramics, tshuaj pleev ib ce, tawv, ntawv, roj hmab, tshuaj txhua hnub thiab lwm yam lag luam tau dhau los ua ntau dua thiab dav dua.
(3) Kev nce qib ntawm thev naus laus zis ua rau kev lag luam loj hlob
Thaum ntxov ntawm kev txhim kho ntawm kuv lub teb chaws cellulose ether kev lag luam, ionic carboxymethyl cellulose ether (CMC) yog cov khoom tseem ceeb. Nrog rau kev tsim cov ionic cellulose ether sawv cev los ntawm PAC thiab non-ionic cellulose ether sawv cev los ntawm HPMC Nrog rau kev txhim kho thiab kev loj hlob ntawm cov txheej txheem, daim ntawv thov ntawm cellulose ether tau nthuav dav. Cov thev naus laus zis tshiab thiab cov khoom tshiab yuav hloov cov khoom cellulose ether ib txwm muaj yav dhau los sai sai thiab txhawb kev txhim kho ntawm kev lag luam.
2. Tej yam tsis zoo
(1) Kev sib tw tsis sib haum xeeb hauv kev ua lag luam
Piv nrog rau lwm cov haujlwm tshuaj lom neeg, lub sijhawm tsim kho ntawm qhov project cellulose ether luv luv thiab cov khoom siv dav dav, yog li muaj qhov tshwm sim ntawm kev nthuav dav tsis zoo hauv kev lag luam. Tsis tas li ntawd, vim tsis muaj cov qauv kev lag luam thiab cov qauv kev ua lag luam uas lub xeev tsim, muaj qee lub lag luam me me nrog qib kev txawj ntse qis thiab kev nqis peev tsawg hauv kev lag luam; qee qhov ntawm lawv muaj teeb meem kev ua qias tuaj rau ntau qib hauv cov txheej txheem ntau lawm, thiab siv cov khoom tsis zoo, Tus nqi qis thiab tus nqi qis coj los ntawm kev nqis peev tiv thaiv ib puag ncig qis tau cuam tshuam rau kev ua lag luam cellulose ether, ua rau muaj kev sib tw tsis zoo hauv kev ua lag luam. Tom qab kev qhia txog cov thev naus laus zis tshiab thiab cov khoom tshiab, lub tshuab tshem tawm ntawm kev ua lag luam yuav txhim kho qhov xwm txheej tam sim no ntawm kev sib tw tsis zoo.
(2) Cov khoom siv thev naus laus zis siab thiab cov khoom muaj nqis ntxiv yog raug tswj hwm los ntawm txawv teb chaws
Kev lag luam cellulose ether txawv teb chaws tau pib ua ntej, thiab cov tuam txhab tsim khoom uas sawv cev los ntawm Dow Chemical thiab Hercules Group hauv Tebchaws Meskas yog nyob rau hauv txoj haujlwm ua tus thawj coj hauv kev tsim cov mis thiab thev naus laus zis. Kev txwv los ntawm thev naus laus zis, cov tuam txhab cellulose ether hauv tsev feem ntau tsim cov khoom lag luam qis-nqi nrog cov txheej txheem yooj yim thiab cov khoom tsis huv, thaum cov tuam txhab txawv teb chaws tau monopolized kev ua lag luam rau cov khoom lag luam cellulose ether siab-nqi los ntawm kev siv cov txiaj ntsig thev naus laus zis; yog li ntawd, Hauv kev ua lag luam cellulose ether hauv tsev, cov khoom lag luam siab-kawg yuav tsum tau xa tawm thiab cov khoom lag luam qis-kawg muaj cov channel xa khoom tsis muaj zog. Txawm hais tias lub peev xwm tsim khoom ntawm kev lag luam cellulose ether hauv tsev tau loj hlob sai, nws qhov kev sib tw hauv kev ua lag luam thoob ntiaj teb tsis muaj zog. Nrog rau kev txhim kho ntawm kev lag luam cellulose ether, cov nyiaj tau los ntawm cov khoom lag luam qis-nqi yuav txuas ntxiv mus, thiab cov tuam txhab hauv tsev yuav tsum nrhiav kev tshawb fawb txog thev naus laus zis los rhuav tshem kev lag luam ntawm cov tuam txhab txawv teb chaws hauv kev ua lag luam khoom siab-kawg.
(3) Kev hloov pauv ntawm cov nqi khoom siv raw
Paj rwb zoo, cov khoom siv tseem ceeb ntawmcellulose ether, yog ib yam khoom ua liaj ua teb. Vim muaj kev hloov pauv ntawm ib puag ncig ntuj, cov zis thiab tus nqi yuav hloov pauv, uas yuav ua rau muaj teeb meem rau kev npaj cov khoom siv raw thiab kev tswj tus nqi ntawm cov lag luam downstream.
Tsis tas li ntawd xwb, cov khoom siv roj av xws li propylene oxide thiab methyl chloride kuj yog cov khoom siv tseem ceeb rau kev tsim cov cellulose ether, thiab lawv cov nqi raug cuam tshuam loj heev los ntawm kev hloov pauv hauv kev lag luam roj av. Kev hloov pauv hauv qhov xwm txheej nom tswv thoob ntiaj teb feem ntau muaj kev cuam tshuam rau cov nqi roj av, yog li cov tuam txhab tsim cellulose ether yuav tsum ntsib cov teebmeem tsis zoo ntawm kev hloov pauv ntau zaus ntawm cov nqi roj rau lawv cov khoom tsim thiab kev ua haujlwm.
Lub sijhawm tshaj tawm: Plaub Hlis-28-2024