Raws li lub "Tuam Tshoj cellulose ether kev tshawb fawb Kev Tshawb Fawb thiab Kev Ua Lag Luam Kev Pab Tswv Yim (2022 tsab cai ntawm cov nroj tsuag cell phab ntsa thiab feem ntau muaj ntau polysaccharide hauv xwm. Nws suav rau ntau tshaj 50% ntawm cov pa roj carbon cov ntsiab lus ntawm cov nroj tsuag. Ntawm lawv, cov ntsiab lus cellulose ntawm paj rwb yog ze rau 100%, uas yog lub cellulose ntuj cellulose hauv paus. Nyob rau hauv cov ntoo dav dav, cov nyiaj cellulose rau 40-50%, thiab muaj 10-30%
Kev lag luam hauv paus neeg txawv teb chaws ether yog cov paub tab, thiab yog qhov tseem ceeb ntawm cov khoom lag luam loj xws li Dow tshuaj, Ashland, thiab Shin-Etsu. Lub cellulose entetle muaj peev xwm ntawm cov tuam txhab txawv teb chaws muaj txog li ntawm 100,000 tons (ansas tons muaj peev xwm ntau dua li 90% (tsis suav nrog Tuam Tshoj lub peev xwm ntau lawm). Ib qho me me ntawm cov tshuaj-qib khoom, cov khoom noj-cov khoom siv high-enters-qib cellulose xav tau nyob rau hauv kuv lub tebchaws tau muab los ntawm cov tuam txhab txawv teb chaws.
Tam sim no, feem ntau ntawm cov peev txheej ntawm cov khoom muaj kev sib tw ntawm cov khoom lag luam ntawm cov khoom siv luv luv ntawm kuv lub teb chaws lub teb chaws lub cellulose kev lag luam ether.
Qhov zoo thiab tsim tau ntau lawm ntawm carboxymethyl cellulose thiab nws cov ntsev cov khoom hauv kuv lub tebchaws tau nce xyoo tsis ntev los no, thiab cov khoom siv xa tawm nce xyoo los ntawm xyoo. Kev xav ua lag luam txawv teb chaws tshwj xeeb feem ntau yog nyob ntawm kuv lub teb chaws qhov kev xa tawm, thiab kev ua lag luam yog cov. Chav rau kev loj hlob tom ntej yog qhov txwv.
Tsis muaj tus neeg ua haujlwm tsis tau ua haujlwm cellulos, suav nrog hydroxyethyl, propyl, metylcellulose yav tom ntej, tshwj xeeb tshaj yog nyob rau hauv cov kev lag luam siab, uas tseem muaj qhov chaw loj hlob. Xws li tshuaj, qib siab xim, high-qib ceramics, thiab lwm yam tseem yuav tsum tau import. Tseem muaj ntau ntawm chav tsev rau kev txhim kho nyob rau hauv cov thev naus laus zis ntau lawm thiab kev tshawb fawb thiab kuj tseem muaj kev nqis peev ntau.
Tam sim no, theem ntawm cov cuab yeej siv rau cov txheej txheem lim dej hauv tsev yog qhov tsawg, uas cuam tshuam kev loj hlob ntawm kev lag luam. Lub tshuab impurity tseem ceeb hauv cov khoom yog sodium chloride. Yav dhau los, peb-legged centrifuges tau siv dav hauv kuv lub tebchaws, thiab cov txheej txheem lim dej yog cov haujlwm ua haujlwm, kev siv zog thiab siv hluav taws xob. Cov khoom lag luam zoo kuj nyuaj rau txhim kho. Feem ntau ntawm cov kab ntau lawm tshiab tau muaj cov khoom siv txawv teb chaws los txhim kho cov khoom siv cov khoom siv txawv teb chaws, tab sis tseem tseem muaj qhov sib txawv ntawm cov kab ntau lawm thiab cov teb chaws txawv teb chaws. Kev tsim kho yav tom ntej ntawm kev lag luam tuaj yeem xav txog cov cuab yeej siv txawv teb chaws thiab cov khoom siv hauv tsev, thiab cov khoom siv ntshuam hauv cov khoom tseem ceeb los txhim kho kev siv tshuab ntawm cov kab ntau lawm. Piv nrog ionic cov khoom lag luam, cov kev ua cellulose cellulose cellulose muaj cov kev xav tau ntau dua, thiab kev ua txhaum ntau dua los ntawm cov kev sib tw hauv cov thev naus laus zis thiab kev nthuav tawm.
Lub Sijhawm Post: Apr-10-2023