Cellulose etheryog ib lo lus dav dav rau ntau yam khoom siv tau los ntawm cov cellulose ntuj (paj rwb zoo thiab ntoo pulp, thiab lwm yam.) Cov khoom tshwm sim yog cov khoom siv downstream ntawm cellulose. Tom qab etherification, cellulose yaj tau hauv dej, dilute alkali kua thiab organic solvent, thiab muaj thermoplasticity. Muaj ntau hom cellulose ethers, uas siv dav hauv kev tsim kho, cement, xim, tshuaj, khoom noj, roj av, tshuaj txhua hnub, textile, papermaking thiab cov khoom siv hluav taws xob thiab lwm yam lag luam. Raws li tus lej ntawm cov substituents, nws tuaj yeem faib ua ib qho ether thiab sib xyaw ether, thiab raws li ionization, nws tuaj yeem faib ua ionic cellulose ether thiab non-ionic cellulose ether. Tam sim no, ionic cellulose ether ionic khoom muaj cov thev naus laus zis tsim khoom, yooj yim npaj, tus nqi qis, thiab cov teeb meem kev lag luam qis. Lawv feem ntau yog siv rau hauv cov khoom noj khoom haus ntxiv, textile auxiliaries, tshuaj txhua hnub thiab lwm yam teb, thiab yog cov khoom tseem ceeb hauv kev ua lag luam.
Tam sim no, lub ntiaj teb cov cellulose ethers tseem ceeb yogCMC, HPMC, MC, HEC, thiab lwm yam. Ntawm lawv, CMC muaj cov zis loj tshaj plaws, suav txog li ib nrab ntawm cov zis thoob ntiaj teb, thaum HPMC thiab MC suav txog li 33% ntawm qhov kev thov thoob ntiaj teb, thiabHECsuav txog li 50% ntawm qhov kev thov thoob ntiaj teb. 13% ntawm kev ua lag luam. Kev siv kawg tseem ceeb tshaj plaws ntawm carboxymethyl cellulose (CMC) yog tshuaj ntxuav tes, suav txog li 22% ntawm qhov kev thov ua lag luam, thiab lwm yam khoom siv feem ntau yog siv rau hauv cov teb ntawm cov ntaub ntawv tsim kho, khoom noj thiab tshuaj.
Cov ntawv thov hauv qab
Yav dhau los, vim yog qhov kev loj hlob tsawg ntawm kuv lub teb chaws qhov kev thov rau cellulose ether hauv cov teb ntawm cov tshuaj txhua hnub, tshuaj, khoom noj, txheej, thiab lwm yam, qhov kev thov rau cellulose ether hauv Suav teb tau tsom mus rau hauv cov khoom siv hauv tsev. Txog niaj hnub no, kev lag luam khoom siv hauv tsev tseem suav txog 33% ntawm kuv lub teb chaws qhov kev thov cellulose ether. Qhov kev thov rau kuv lub teb chaws cellulose ether hauv cov khoom siv hauv tsev tau dhau los ua qhov puv nkaus, thiab qhov kev thov hauv cov teb ntawm cov tshuaj txhua hnub, tshuaj, khoom noj, txheej, thiab lwm yam tab tom loj hlob sai nrog kev txhim kho ntawm kev siv tshuab. Piv txwv li, nyob rau xyoo tas los no, cov tshuaj ntsiav zaub nrog cellulose ether ua cov khoom siv tseem ceeb, thiab cov nqaij dag, cov khoom tshiab ua los ntawm cellulose ether, muaj kev cia siab dav thiab chav rau kev loj hlob.
Piv txwv li, piv txwv li, cellulose ether muaj cov khoom zoo heev xws li ua kom tuab, khaws dej, thiab qeeb qeeb. Yog li ntawd, cov khoom siv hauv tsev cellulose ether yog siv dav los txhim kho kev tsim cov mortar sib xyaw ua ke (xws li cov mortar sib xyaw ntub thiab cov mortar sib xyaw qhuav), PVC resin, thiab lwm yam, xim latex, putty, thiab lwm yam, suav nrog kev ua tau zoo ntawm cov khoom siv hauv tsev. Ua tsaug rau kev txhim kho ntawm kuv lub teb chaws qib nroog, kev txhim kho sai ntawm kev lag luam khoom siv hauv tsev, kev txhim kho tas mus li ntawm qib kev siv tshuab hauv kev tsim kho, thiab kev tiv thaiv ib puag ncig ntawm cov neeg siv khoom rau cov khoom siv hauv tsev tau tsav qhov kev thov rau cov cellulose ethers tsis-ionic hauv kev lag luam khoom siv hauv tsev. Thaum lub sijhawm Tsib Xyoos Txoj Kev Npaj, kuv lub teb chaws tau ua kom nrawm hloov pauv ntawm cov nroog shantytowns thiab cov tsev puas tsuaj, thiab txhawb nqa kev tsim kho cov hauv paus hauv nroog, suav nrog kev ua kom nrawm hloov pauv ntawm cov nroog shantytowns thiab cov zos hauv nroog, txhawb nqa kev kho dua tshiab ntawm cov chaw nyob qub, cov tsev qub puas tsuaj thiab cov khoom tsis tiav. Nyob rau thawj ib nrab ntawm xyoo 2021, thaj chaw ntawm cov tsev nyob hauv tsev tshiab yog 755.15 lab square meters, nce 5.5%. Thaj chaw ua tiav ntawm cov tsev yog 364.81 lab square meters, nce 25.7%. Kev rov qab los ntawm thaj chaw ua tiav ntawm cov vaj tse yuav tsav qhov kev thov cuam tshuam hauv thaj chaw ntawm cov ntaub ntawv tsim kho cellulose ether.
Tus qauv kev sib tw ua lag luam
Kuv lub teb chaws yog lub teb chaws tsim cov cellulose ether loj hauv ntiaj teb. Nyob rau theem no, cov khoom siv hauv tsev hauv tsev tau raug hloov pauv mus rau hauv zos. Shandong Heda yog lub tuam txhab ua lag luam hauv Suav teb ntawm cellulose ether. Lwm cov chaw tsim khoom hauv tsev loj suav nrog Shandong Ruitai, Shandong Yiteng, thiab North Tianpu Chemical, Yicheng Cellulose, thiab lwm yam. Cov tshuaj pleev xim, tshuaj thiab zaub mov cellulose ethers tam sim no feem ntau yog monopolized los ntawm cov tuam txhab txawv teb chaws xws li Dow, Ashland, Shin-Etsu, thiab Lotte. Ntxiv rau Shandong Heda thiab lwm lub tuam txhab uas muaj peev xwm ntau dua 10,000 tons, muaj ntau lub tuam txhab me me ntawm cov non-ionic cellulose ethers nrog peev xwm ntawm 1,000 tons. Cov khoom noj khoom haus thiab tshuaj qib siab.
Kev xa tawm thiab xa tawm ntawm cellulose ether
Xyoo 2020, vim muaj kev poob qis ntawm lub peev xwm tsim khoom ntawm cov tuam txhab txawv teb chaws vim muaj kev sib kis thoob ntiaj teb, qhov ntim xa tawm ntawm cellulose ether hauv kuv lub teb chaws tau qhia txog kev loj hlob sai. Xyoo 2020, kev xa tawm ntawm cellulose ether yuav ncav cuag 77,272 tons. Txawm hais tias qhov ntim xa tawm ntawm kuv lub teb chawscellulose ethertau loj hlob sai, cov khoom xa tawm feem ntau yog cov khoom siv hauv tsev cellulose ether, thaum lub ntim xa tawm ntawm kev kho mob thiab qib zaub mov cellulose ether me me heev, thiab tus nqi ntxiv ntawm cov khoom xa tawm tsawg. Tam sim no, lub ntim xa tawm ntawm kuv lub teb chaws cellulose ether yog plaub npaug ntawm qhov ntim xa tawm, tab sis tus nqi xa tawm tsawg dua ob npaug ntawm tus nqi xa tawm. Hauv thaj chaw ntawm cov khoom lag luam siab, cov txheej txheem hloov pauv xa tawm ntawm cov cellulose ether hauv tsev tseem muaj ntau chav rau kev txhim kho.
Lub sijhawm tshaj tawm: Plaub Hlis-26-2024