Cellulose ether yog ib hom khoom siv polymer ntuj tsim, uas muaj cov yam ntxwv ntawm emulsification thiab suspension. Ntawm ntau hom, HPMC yog qhov muaj cov zis siab tshaj plaws thiab siv dav tshaj plaws, thiab nws cov zis nce sai.
Nyob rau xyoo tas los no, ua tsaug rau kev loj hlob ntawm lub teb chaws kev lag luam, kev tsim cov cellulose ether hauv kuv lub teb chaws tau nce ntxiv txhua xyoo. Tib lub sijhawm, nrog rau kev txhim kho ntawm kev tshawb fawb thiab thev naus laus zis hauv tsev, cov cellulose ethers siab kawg uas xav tau ntau yam khoom xa tuaj tam sim no maj mam hloov mus rau thaj chaw, thiab cov khoom xa tawm ntawm cov cellulose ethers hauv tsev txuas ntxiv nce ntxiv. Cov ntaub ntawv qhia tias txij lub Ib Hlis mus txog rau lub Kaum Ib Hlis 2020, Tuam Tshoj cov khoom xa tawm cellulose ether tau txog 64,806 tons, nce ntxiv txhua xyoo ntawm 14.2%, siab dua li cov khoom xa tawm rau tag nrho xyoo 2019.
Cellulose ether raug cuam tshuam los ntawm cov nqi paj rwb sab saud：
Cov khoom siv tseem ceeb ntawm cellulose ether suav nrog cov khoom ua liaj ua teb thiab cov khoom siv hav zoov suav nrog paj rwb zoo thiab cov khoom siv tshuaj suav nrog propylene oxide. Cov khoom siv raw ntawm paj rwb zoo yog paj rwb linters. Kuv lub teb chaws muaj ntau cov paj rwb tsim tawm, thiab cov chaw tsim khoom ntawm paj rwb linters feem ntau yog nyob hauv Shandong, Xinjiang, Hebei, Jiangsu thiab lwm qhov chaw. Cov paj rwb linters muaj ntau heev thiab muaj ntau yam khoom siv.
Paj rwb muaj feem ntau hauv cov qauv kev lag luam ua liaj ua teb, thiab nws tus nqi raug cuam tshuam los ntawm ntau yam xws li cov xwm txheej ntuj tsim thiab kev muab khoom thoob ntiaj teb thiab kev thov. Ib yam li ntawd, cov khoom siv tshuaj lom neeg xws li propylene oxide thiab methyl chloride kuj raug cuam tshuam los ntawm cov nqi roj av thoob ntiaj teb. Txij li thaum cov khoom siv raw suav nrog feem ntau hauv cov qauv nqi ntawm cellulose ether, kev hloov pauv ntawm cov nqi khoom siv raw ncaj qha cuam tshuam rau tus nqi muag khoom ntawm cellulose ether.
Txhawm rau teb rau qhov kev nyuaj siab ntawm tus nqi, cov chaw tsim khoom cellulose ether feem ntau hloov qhov kev nyuaj siab mus rau cov lag luam downstream, tab sis qhov kev hloov pauv cuam tshuam los ntawm qhov nyuaj ntawm cov khoom siv thev naus laus zis, ntau yam khoom thiab cov nqi ntxiv ntawm cov khoom. Feem ntau, cov lag luam uas muaj cov teeb meem kev siv tshuab siab, cov khoom nplua nuj, thiab cov nqi ntxiv siab muaj qhov zoo dua, thiab cov lag luam yuav tswj tau qib ruaj khov ntawm cov nyiaj tau los tag nrho; txwv tsis pub, cov lag luam yuav tsum ntsib qhov kev nyuaj siab ntawm tus nqi ntau dua. Tsis tas li ntawd, yog tias qhov chaw sab nraud tsis ruaj khov thiab qhov ntau ntawm cov khoom hloov pauv loj, cov tuam txhab khoom siv raw khoom sab saud txaus siab xaiv cov neeg siv khoom downstream nrog qhov ntau thiab tsawg ntawm kev tsim khoom thiab muaj zog kom ntseeg tau tias muaj txiaj ntsig zoo rau kev lag luam thiab txo cov kev pheej hmoo. Yog li ntawd, qhov no txwv txoj kev loj hlob ntawm cov lag luam cellulose ether me me rau qee qhov.
Cov Qauv Lag Luam Hauv Qab：
Nrog kev nce qib ntawm kev tshawb fawb thiab thev naus laus zis, kev lag luam xav tau kev pab cuam yuav loj hlob raws li ntawd. Tib lub sijhawm, qhov ntau thiab tsawg ntawm cov ntawv thov kev pab cuam yuav txuas ntxiv nthuav dav, thiab kev thov kev pab cuam yuav tswj hwm kev loj hlob ruaj khov. Hauv cov qauv kev lag luam ntawm cellulose ether, cov ntaub ntawv tsim kho, kev tshawb nrhiav roj, zaub mov thiab lwm yam teb nyob hauv txoj haujlwm tseem ceeb. Ntawm lawv, cov khoom siv tsim kho yog kev lag luam neeg siv khoom loj tshaj plaws, suav txog ntau dua 30%.
Kev lag luam kev tsim kho yog qhov chaw siv khoom loj tshaj plaws ntawm HPMC：
Hauv kev lag luam kev tsim kho, cov khoom HPMC ua lub luag haujlwm tseem ceeb hauv kev sib txuas thiab kev khaws cia dej. Tom qab sib tov me ntsis ntawm HPMC nrog cov cement mortar, nws tuaj yeem ua rau kom muaj viscosity, tensile thiab shear zog ntawm cement mortar, mortar, binder, thiab lwm yam, yog li txhim kho kev ua tau zoo ntawm cov ntaub ntawv tsim kho, txhim kho kev tsim kho zoo thiab kev ua haujlwm ntawm kev tsim kho tshuab. Tsis tas li ntawd, HPMC kuj yog ib qho tseem ceeb retarder rau kev tsim khoom thiab kev thauj mus los ntawm cov pob zeb ua lag luam, uas tuaj yeem xauv dej thiab txhim kho rheology ntawm cov pob zeb. Tam sim no, HPMC yog cov khoom tseem ceeb cellulose ether siv rau hauv cov ntaub ntawv kaw tsev.
Kev lag luam tsim kho yog ib qho kev lag luam tseem ceeb ntawm kuv lub teb chaws txoj kev lag luam hauv tebchaws. Cov ntaub ntawv qhia tau tias thaj chaw tsim kho vaj tse tau nce ntxiv los ntawm 7.08 billion square meters hauv xyoo 2010 mus rau 14.42 billion square meters hauv xyoo 2019, uas tau txhawb nqa kev loj hlob ntawm kev lag luam cellulose ether.
Kev vam meej tag nrho ntawm kev lag luam vaj tsev tau rov qab zoo li qub, thiab thaj chaw tsim kho thiab muag khoom tau nce ntxiv txhua xyoo. Cov ntaub ntawv pej xeem qhia tau tias xyoo 2020, qhov kev poob qis txhua hli hauv thaj chaw tsim kho tshiab ntawm cov tsev lag luam tau nqaim zuj zus, thiab qhov kev poob qis txhua xyoo tau yog 1.87%. Xyoo 2021, qhov kev rov zoo yuav txuas ntxiv mus. Txij lub Ib Hlis mus txog rau lub Ob Hlis xyoo no, qhov kev loj hlob ntawm thaj chaw muag khoom ntawm cov tsev lag luam thiab cov tsev nyob tau rov qab zoo li qub mus txog 104.9%, uas yog qhov nce ntxiv ntau heev.
Kev Tshawb Roj:
Kev lag luam kev pabcuam kev tshawb nrhiav thiab kev txhim kho thoob ntiaj teb tau cuam tshuam tshwj xeeb los ntawm kev nqis peev thoob ntiaj teb hauv kev tshawb nrhiav thiab kev txhim kho, nrog kwv yees li 40% ntawm cov khoom lag luam tshawb nrhiav thoob ntiaj teb tau mob siab rau kev pabcuam kev tshawb nrhiav.
Thaum lub sijhawm khawb roj, cov kua dej khawb ua lub luag haujlwm tseem ceeb hauv kev nqa thiab ncua cov txiav, txhawb cov phab ntsa qhov thiab sib npaug ntawm lub zog tsim, txias thiab lubricating cov laum, thiab xa cov zog hydrodynamic. Yog li ntawd, hauv kev ua haujlwm khawb roj, nws yog ib qho tseem ceeb heev kom tswj tau cov av noo, viscosity, fluidity thiab lwm yam cim ntawm cov kua dej khawb. Cov polyanionic cellulose, PAC, tuaj yeem ua kom tuab, lubricate lub laum, thiab xa cov zog hydrodynamic. Vim yog cov xwm txheej geological nyuaj hauv thaj chaw khaws roj thiab qhov nyuaj ntawm kev khawb, muaj kev xav tau ntau rau PAC.
Kev lag luam khoom siv tshuaj:
Cov cellulose ethers uas tsis yog ionic siv dav hauv kev lag luam tshuaj ua cov tshuaj ntxiv xws li cov thickeners, dispersants, emulsifiers thiab film formers. Nws yog siv rau txheej zaj duab xis thiab nplaum ntawm cov ntsiav tshuaj tshuaj, thiab kuj tseem siv tau rau kev ncua, kev npaj qhov muag, cov ntsiav tshuaj ntab, thiab lwm yam. Txij li thaum cov tshuaj cellulose ether muaj cov kev cai nruj dua ntawm kev huv thiab viscosity ntawm cov khoom, cov txheej txheem tsim khoom yog qhov nyuaj heev thiab muaj ntau cov txheej txheem ntxuav. Piv nrog rau lwm cov qib ntawm cov khoom cellulose ether, tus nqi sau qis dua thiab tus nqi tsim khoom siab dua, tab sis tus nqi ntxiv ntawm cov khoom kuj siab dua. Cov tshuaj ntxiv feem ntau yog siv rau hauv cov khoom npaj xws li kev npaj tshuaj, tshuaj patent Suav thiab cov khoom biochemical.
Vim tias kev lag luam tshuaj lom neeg pib lig hauv kuv lub teb chaws, qib kev txhim kho tam sim no qis, thiab cov txheej txheem kev lag luam yuav tsum tau txhim kho ntxiv. Hauv cov txiaj ntsig ntawm cov tshuaj hauv tsev, cov txiaj ntsig ntawm cov tshuaj pleev hauv tsev muaj feem tsawg ntawm 2% txog 3%, uas qis dua li qhov feem pua ntawm cov tshuaj txawv teb chaws, uas yog li 15%. Nws tuaj yeem pom tias cov tshuaj lom neeg hauv tsev tseem muaj ntau chav rau kev txhim kho., Nws xav tias yuav ua rau muaj kev loj hlob ntawm kev lag luam cellulose ether cuam tshuam.
Los ntawm qhov kev xav ntawm kev tsim cov cellulose ether hauv tsev, Shandong Head muaj peev xwm tsim khoom loj tshaj plaws, suav txog 12.5% ntawm tag nrho cov peev xwm tsim khoom, ua raws li Shandong RUITAI, Shandong YITENG, North TIANPU Chemical thiab lwm lub tuam txhab. Zuag qhia tag nrho, kev sib tw hauv kev lag luam yog qhov hnyav, thiab qhov kev xav tau yuav nce ntxiv.
Lub sijhawm tshaj tawm: Lub Peb Hlis-29-2023