Lub xeev xwm txheej kev lag luam hauv tsev thiab txawv teb chaws ntawm cov non-ionic cellulose ether yog li cas?

(1)Txheej txheem cej luam ntawm kev lag luam thoob ntiaj teb nonionic cellulose ether:

Los ntawm qhov kev xav ntawm kev faib tawm peev xwm tsim khoom thoob ntiaj teb, 43% ntawm tag nrho cov khoom lag luam thoob ntiaj tebcellulose etherXyoo 2018, cov khoom tsim tawm los ntawm Asia (Tuam Tshoj suav txog 79% ntawm cov khoom tsim tawm hauv Asia), Western Europe suav txog 36%, thiab North America suav txog 8%. Los ntawm qhov kev xav ntawm kev thov cellulose ether thoob ntiaj teb, kev siv cellulose ether thoob ntiaj teb hauv xyoo 2018 yog kwv yees li 1.1 lab tons. Txij xyoo 2018 txog 2023, kev siv cellulose ether yuav loj hlob ntawm qhov nruab nrab txhua xyoo ntawm 2.9%.

Yuav luag ib nrab ntawm tag nrho cov cellulose ether thoob ntiaj teb noj yog ionic cellulose (sawv cev los ntawm CMC), uas feem ntau yog siv rau hauv cov tshuaj ntxuav, cov khoom siv roj av thiab cov khoom noj khoom haus ntxiv; kwv yees li ib feem peb yog cov non-ionic methyl cellulose thiab nws cov khoom siv derivatives (sawv cev los ntawmHPMC), thiab qhov seem ib feem rau yog hydroxyethyl cellulose thiab nws cov derivatives thiab lwm yam cellulose ethers. Kev loj hlob ntawm kev thov rau cov non-ionic cellulose ethers feem ntau yog tsav los ntawm kev siv hauv cov teb ntawm cov ntaub ntawv tsim kho, coatings, zaub mov, tshuaj, thiab cov tshuaj txhua hnub. Los ntawm qhov kev xav ntawm kev faib tawm hauv cheeb tsam ntawm kev lag luam neeg siv khoom, kev lag luam Es Xias yog kev lag luam loj hlob sai tshaj plaws. Txij xyoo 2014 txog 2019, qhov kev loj hlob txhua xyoo ntawm kev thov rau cellulose ether hauv Es Xias tau txog 8.24%. Ntawm lawv, qhov kev thov tseem ceeb hauv Es Xias los ntawm Tuam Tshoj, suav txog 23% ntawm tag nrho cov kev thov thoob ntiaj teb.

(2)Txheej txheem cej luam ntawm kev lag luam non-ionic cellulose ether hauv tebchaws:

Hauv Suav teb, ionic cellulose ethers sawv cev los ntawmCMCtsim ua ntej, tsim cov txheej txheem tsim khoom uas paub tab thiab muaj peev xwm tsim khoom loj. Raws li IHS cov ntaub ntawv, cov chaw tsim khoom hauv Suav teb tau siv yuav luag ib nrab ntawm lub peev xwm tsim khoom thoob ntiaj teb ntawm cov khoom lag luam CMC yooj yim. Kev tsim cov cellulose ether uas tsis yog ionic pib lig hauv kuv lub tebchaws, tab sis qhov ceev ntawm kev tsim khoom yog ceev.

Raws li cov ntaub ntawv ntawm Tuam Tshoj Cellulose Kev Lag Luam Association, lub peev xwm tsim khoom, tso zis thiab muag khoom ntawm cov non-ionic cellulose ethers ntawm cov tuam txhab hauv tsev hauv Suav teb txij xyoo 2019 txog 2021 yog raws li nram no:

Tom qab ntau xyoo ntawm kev txhim kho, Tuam Tshoj txoj kev lag luam non-ionic cellulose ether tau ua tiav zoo heev. Xyoo 2021, lub peev xwm tsim khoom ntawm cov khoom siv hauv tsev HPMC yuav ncav cuag 117,600 tons, cov zis yuav yog 104,300 tons, thiab cov khoom muag yuav yog 97,500 tons. Cov txiaj ntsig loj hauv kev lag luam thiab thaj chaw tau pom tseeb tias hloov chaw hauv tsev. Txawm li cas los xij, rau cov khoom HEC, vim yog qhov pib lig ntawm R & D thiab kev tsim khoom hauv kuv lub tebchaws, cov txheej txheem tsim khoom nyuaj thiab cov teeb meem kev siv tshuab siab, lub peev xwm tsim khoom tam sim no, kev tsim khoom thiab cov khoom muag ntawm HEC cov khoom hauv tsev yog me me. Txawm li cas los xij, nyob rau xyoo tas los no, raws li cov tuam txhab hauv tsev txuas ntxiv nce kev nqis peev hauv kev tshawb fawb thiab kev txhim kho, txhim kho qib thev naus laus zis thiab nquag tsim cov neeg siv khoom downstream, kev tsim khoom thiab kev muag khoom tau loj hlob sai. Raws li cov ntaub ntawv los ntawm Tuam Tshoj Cellulose Kev Lag Luam Association, xyoo 2021, cov tuam txhab lag luam hauv tsev loj HEC (suav nrog cov ntaub ntawv koom haum kev lag luam, txhua lub hom phiaj) muaj peev xwm tsim tau 19,000 tons, cov zis tawm ntawm 17,300 tons, thiab cov khoom muag ntawm 16,800 tons. Ntawm lawv, muaj peev xwm tsim tau nce 72.73% xyoo-rau-xyoo piv rau xyoo 2020, cov zis tawm nce 43.41% xyoo-rau-xyoo, thiab cov khoom muag nce 40.60% xyoo-rau-xyoo.

Ua ib qho khoom ntxiv, qhov muag khoom ntawm HEC raug cuam tshuam los ntawm qhov kev thov ua lag luam downstream. Raws li qhov chaw thov tseem ceeb tshaj plaws ntawm HEC, kev lag luam coatings muaj kev sib raug zoo nrog HEC kev lag luam hauv cov txiaj ntsig thiab kev faib khoom lag luam. Los ntawm qhov kev xav ntawm kev faib khoom lag luam, kev lag luam coatings feem ntau yog faib hauv Jiangsu, Zhejiang thiab Shanghai hauv East China, Guangdong hauv South China, ntug dej hiav txwv sab hnub tuaj, thiab Sichuan hauv Southwest China. Ntawm lawv, cov khoom tsim tawm hauv Jiangsu, Zhejiang, Shanghai thiab Fujian suav txog li 32%, thiab hauv South China thiab Guangdong suav txog li 20%. 5 saum toj no. Kev ua lag luam rau cov khoom HEC kuj tseem ceeb hauv Jiangsu, Zhejiang, Shanghai, Guangdong thiab Fujian. HEC tam sim no feem ntau siv rau hauv cov txheej txheem architectural, tab sis nws tsim nyog rau txhua yam dej-raws li coatings hauv cov nqe lus ntawm nws cov khoom zoo.

Xyoo 2021, tag nrho cov khoom tsim tawm txhua xyoo ntawm Tuam Tshoj cov txheej txheem yuav tsum yog li ntawm 25.82 lab tons, thiab cov khoom tsim tawm ntawm cov txheej txheem vaj tse thiab cov txheej txheem kev lag luam yuav yog 7.51 lab tons thiab 18.31 lab tons feem6. Cov txheej txheem dej tam sim no suav txog li ntawm 90% ntawm cov txheej txheem vaj tse, thiab kwv yees li ntawm 25%, kwv yees tias kuv lub teb chaws cov xim pleev xim dej tsim tawm hauv xyoo 2021 yuav yog li ntawm 11.3365 lab tons. Hauv kev xav, qhov ntau ntawm HEC ntxiv rau cov xim pleev xim dej yog 0.1% txog 0.5%, xam rau qhov nruab nrab ntawm 0.3%, xav tias txhua cov xim pleev xim dej siv HEC ua cov khoom ntxiv, qhov kev thov hauv tebchaws rau cov xim pleev xim HEC yog li ntawm 34,000 tons. Raws li tag nrho cov txheej txheem thoob ntiaj teb ntawm 97.6 lab tons hauv xyoo 2020 (uas yog cov txheej txheem tsim vaj tsev suav txog 58.20% thiab cov txheej txheem kev lag luam suav txog 41.80%), qhov kev thov thoob ntiaj teb rau cov txheej txheem HEC kwv yees li ntawm 184,000 tons.

Hauv kev xaus lus, tam sim no, feem ntawm kev ua lag luam ntawm cov txheej txheem HEC ntawm cov tuam txhab tsim khoom hauv Suav teb tseem tsawg, thiab feem ntawm kev ua lag luam hauv tsev feem ntau yog cov tuam txhab tsim khoom thoob ntiaj teb uas sawv cev los ntawm Ashland ntawm Tebchaws Meskas, thiab muaj chaw loj rau kev hloov pauv hauv tsev. Nrog kev txhim kho ntawm cov khoom lag luam HEC hauv tsev thiab kev nthuav dav ntawm lub peev xwm tsim khoom, nws yuav sib tw ntxiv nrog cov tuam txhab tsim khoom thoob ntiaj teb hauv thaj chaw downstream uas sawv cev los ntawm cov txheej txheem. Kev hloov pauv hauv tsev thiab kev sib tw ua lag luam thoob ntiaj teb yuav dhau los ua qhov tseem ceeb ntawm kev lag luam no hauv ib lub sijhawm yav tom ntej.

MHEC feem ntau yog siv rau hauv kev tsim kho vaj tse. Nws feem ntau siv rau hauv cov cement mortar los txhim kho nws cov dej khaws cia, ncua lub sijhawm teeb tsa ntawm cov cement mortar, txo nws lub zog flexural thiab compressive zog, thiab nce nws cov tensile zog. Vim yog lub gel point ntawm hom khoom no, nws tsis tshua siv hauv kev lag luam ntawm cov txheej, thiab feem ntau sib tw nrog HPMC hauv kev lag luam ntawm cov ntaub ntawv tsim kho vaj tse. MHEC muaj lub gel point, tab sis nws siab dua HPMC, thiab thaum cov ntsiab lus ntawm hydroxy ethoxy nce, nws lub gel point txav mus rau qhov kub siab. Yog tias nws siv rau hauv cov mortar sib xyaw, nws yog qhov zoo rau kev ncua lub cement slurry ntawm qhov kub siab Bulk electrochemical reaction, nce lub sijhawm khaws cia dej thiab tensile bond zog ntawm cov slurry thiab lwm yam teebmeem.

Qhov kev nqis peev ntawm kev lag luam kev tsim kho, thaj chaw tsim kho vaj tse, thaj chaw ua tiav, thaj chaw kho kom zoo nkauj, thaj chaw kho dua tshiab thiab lawv cov kev hloov pauv yog cov yam tseem ceeb uas cuam tshuam rau qhov kev thov rau MHEC hauv kev lag luam hauv tsev. Txij li xyoo 2021, vim muaj kev cuam tshuam ntawm tus kab mob ntsws tshiab, kev tswj hwm txoj cai vaj tse, thiab kev pheej hmoo ntawm cov tuam txhab vaj tse, kev vam meej ntawm kev lag luam vaj tse hauv Suav teb tau poob qis, tab sis kev lag luam vaj tse tseem yog ib qho kev lag luam tseem ceeb rau kev txhim kho kev lag luam hauv Suav teb. Raws li cov ntsiab cai dav dav ntawm "kev tswj hwm", "txwv tsis pub muaj kev thov tsis muaj laj thawj", "ua kom tus nqi av ruaj khov, ua kom tus nqi tsev ruaj khov, thiab ua kom kev cia siab ruaj khov", nws hais txog kev tsom mus rau kev kho cov qauv khoom siv nruab nrab thiab ntev, thaum tswj hwm kev sib txuas lus, kev ruaj khov, thiab kev sib xws ntawm cov cai tswjfwm, thiab txhim kho kev lag luam vaj tse ntev. Lub tshuab tswj hwm zoo kom ntseeg tau tias kev txhim kho kev lag luam vaj tse mus sij hawm ntev, ruaj khov thiab noj qab haus huv. Yav tom ntej, kev txhim kho kev lag luam vaj tse yuav zoo li kev txhim kho zoo dua nrog qhov zoo dua thiab qis dua. Yog li ntawd, qhov kev poob qis tam sim no ntawm kev vam meej ntawm kev lag luam vaj tsev yog tshwm sim los ntawm kev hloov kho theem ntawm kev lag luam hauv cov txheej txheem ntawm kev nkag mus rau hauv cov txheej txheem kev txhim kho noj qab haus huv, thiab kev lag luam vaj tsev tseem muaj chaw rau kev txhim kho yav tom ntej. Tib lub sijhawm, raws li "14th Tsib-Xyoo Txoj Kev Npaj rau Kev Txhim Kho Kev Lag Luam thiab Kev Sib Raug Zoo hauv Tebchaws thiab 2035 Lub Hom Phiaj Ntev", nws tau npaj siab hloov hom kev txhim kho hauv nroog, suav nrog kev ua kom nrawm dua kev txhim kho hauv nroog, hloov pauv thiab txhim kho cov zej zog qub, cov chaw tsim khoom qub, cov haujlwm qub ntawm cov chaw khaws khoom xws li cov blocks qub thiab cov zos hauv nroog, thiab txhawb kev kho dua tshiab ntawm cov tsev qub thiab lwm lub hom phiaj. Kev nce ntxiv ntawm kev thov rau cov ntaub ntawv tsim kho hauv kev kho dua tshiab ntawm cov tsev qub kuj yog ib qho kev taw qhia tseem ceeb rau kev nthuav dav ntawm MHEC kev lag luam hauv yav tom ntej.

Raws li cov ntaub ntawv ntawm Tuam Tshoj Cellulose Kev Lag Luam Association, txij li xyoo 2019 txog 2021, cov khoom tsim tawm ntawm MHEC los ntawm cov tuam txhab hauv tsev yog 34,652 tons, 34,150 tons thiab 20,194 tons feem, thiab cov ntim muag khoom yog 32,531 tons, 33,570 tons thiab 20,411 tons feem, qhia txog kev poob qis tag nrho. Qhov laj thawj tseem ceeb yog tiasMHECthiab HPMC muaj cov haujlwm zoo sib xws, thiab feem ntau yog siv rau cov ntaub ntawv siv hauv kev tsim kho xws li mortar. Txawm li cas los xij, tus nqi thiab tus nqi muag ntawm MHEC siab dua li ntawmHPMCNyob rau hauv cov ntsiab lus ntawm kev loj hlob tas mus li ntawm lub peev xwm tsim khoom HPMC hauv tebchaws, qhov kev thov ua lag luam rau MHEC tau poob qis. Xyoo 2019 Los ntawm 2021, qhov kev sib piv ntawm MHEC thiab HPMC cov zis, ntim muag khoom, tus nqi nruab nrab, thiab lwm yam yog raws li nram no: