Ib qho nyiaj ntawm hydroxypropyl xaiv ether khaws cov dej hauv lub tshuaj nrum rau cov xis nyob ntawm cov nplaum thiab txhim kho cov nplaum ntawm lub tshuaj khib thiab txheej.
Cov nyhuv ntawm particle loj thiab sib tov sijhawm ntawm hydroxypropyl methyl cellulose ether rau ntawm dej
Lub peev txheej ceev ceev ntawm lub peev xwm tshuaj cug yog tswj tau ntau dhau los ntawm lub peev xwm nruab nrab, thiab lub cellulose zoo tshaj plaws tau yooj yim dua, thiab nrawm dua rau lub peev xwm kom nrawm dua, Kev tsim kho mechanized, vim lub sijhawm kev txwv, kev xaiv ntawm cellulose yuav tsum yog cov hmoov zoo. Rau tes plastering, ib qho hmoov zoo yuav ua.
Cov nyhuv ntawm kev kawm qib siab thiab kub ntawm hydroxypropyl methyl cellulose ether on dej
Lub solubility thiab qhov kub thiab txias ntawm hydroxypropyl methylcellose hauv dej nyob ntawm qib ntawm etherification. Raws li cov dej sab nraud, dej rov qab los txo qis; Qib siab ntawm etherification, zoo dua cov dej tuav ntawm cellulose ether.
Cuam tshuam ntawm hydroxypropyl methylcellulose ether rau kev sib xws thiab swb tsis kam ntawm tshuaj cug
Cov cuab yeej sib xyaw thiab cov khoom siv tawm tsam ntawm cov qauv cug yog qhov ntsuas tuab, cov ntaub pua av kom haum thiab cov khoom zawv zawg.
Txoj kev ntsuas sib xws, txiav txim raws li JG / J70-2009 tus qauv
Kev sib xws thiab cov nplais tsis yog qhov tseeb los ntawm cov viscosity thiab particle loj ntawm hydroxypropyl methylulose. Nrog rau kev nce viscosity thiab cov ntsiab lus, qhov sib xws ntawm kev tshuaj khib nce; Tus finer cov particle me me, qhov siab dua thawj zaug ua ntu zus ntawm cov tshiab cug. Ceev.
Cov nyhuv ntawm hydroxypropyl methyl cellulose ntawm huab cua nkag ntawm cug vort
Vim yog qhov sib ntxiv ntawm hydroxypropyl methylculose hauv lub cug, ib qho nyiaj ntawm me me, cov pa npuas thiab lub tshuab ua pa hluav taws xob ruaj khov. Vim lub pob nyhuv, lub tshuaj khib muaj cov kev tsim kom zoo thiab txo cov shrinkage thiab torsion ntawm lub cug. Cov kab nrib pleb, thiab nce cov zis tus nqi ntawm cug. Cellulose muaj cov cua-entraining ua haujlwm. Thaum ntxiv cov cellulose, xav txog cov tshuaj, viscosity (ntau viscosity yuav cuam tshuam rau kev ua haujlwm), thiab huab cua-entraining cov khoom. Xaiv cellulose rau cov neeg sib txawv.
Lub sij hawm ncua: Mar-29-2023