Cov Khoom Yooj Yim ntawm Sodium Carboxymethyl cellulose CMC
Feem ntau ntawm CMC yog cov txiaj ntsig zoo pseudopastic, thiab qee hom ntau lawm yog yuav luag txhua yam, thiab muaj zog stirring tuaj yeem ua rau nws dej. Carboxymethyl cellulose feem ntau ua cov khoom pov thawj pseudopastic cwj pwm, lossis shear thinning. Xws li cov kev hloov pauv tsis yog tam sim thiab yog qib zuj zus.
Lub zog shear xav tau thov tsis tu ncua kom txog rau thaum lub zog sib zog. Thaum lub zog shear ploj, lub zog shear ua rau muaj kev sib haum xeeb rov qab mus rau nws cov qauv qub. Sodium Carboxymethyl cellulose tseem muaj cov yam ntxwv solubility zoo, thiab cov yam ntxwv solubilitics nrog cov khoom lag luam sib txawv yog qhov sib txawv.
Thaum nruab nrab tus pas dej cellulose yog yaj ntawm cov qauv acid, yog tias tus reagent cov kua qaub thiab hloov pauv cov txiaj ntsig ntau dua.
Cov tshuaj tsw qab ntawm cov pab pawg carboxyl yuav tsis muaj zog nyob hauv ib puag ncig alkali muaj zog
Vim tias qhov no, cov viscosity ntawm Carboxymethyl cellulose tov tshuaj yog nyob ntawm nws tus nqi PHY. Thaum tus lej pH ntawm high-viscosity cmc yog nruab nrab ntawm 6-8, lub viscosity qhia tau cov nqi loj tshaj plaws.
Nyob rau hauv cov txheej txheem ntawm configuring sodium carboxymethyl cellulose, peb li kev coj ua kuj yooj yim, tab sis muaj ob peb uas tsis tuaj yeem raug teeb tsa ua ke.
Ua ntej tshaj plaws, nws yog cov muaj zog acid thiab muaj zog alkali. Yog tias qhov kev daws teeb meem no sib xyaw nrog sodium carboxymethyl cellulose, nws yuav ua rau kev puas tsuaj rau cov sodium carboxymethyl cellulose;
Thib ob, txhua tus hlau hnyav tsis tuaj yeem teeb tsa;
Tsis tas li ntawd, sodium carboxymethyl cellulose yuav tsis muab tov nrog cov tshuaj organic carboxymsyl cellulose nrog ethanol, vim dej nag, yuav muaj tshwm sim;
Nws yuav tsum raug sau tseg tias yog tias sodium carboxymethyl cellulose cellulose reacts nrog gelatin lossis pectin, nws yog yooj yim heev los tsim coagglomerates.
Qhov saum toj no yog qee yam uas peb xav tau mloog thaum teeb tsa cov sodium carboxymethyl cellulose. Feem ntau hais lus, thaum peb tau teeb tsa, peb tsuas yog xav tau kev hnov ntsim sodium carboxymethyl cellulose nrog dej.
Them sai sai rau cia ntawm sodium carboxymethyl cellulose
1. Yhouure-ntawv pov thawj: vim hais tias sodium carboxymethyl cellulose, nws yuav tsum tau ua kom tsis txhob muaj kev puas tsuaj rau lub hnab ntim khoom kom tsis txhob muaj kev tiv thaiv los ntawm noo noo thiab los nag. , yog li kom ntseeg tau tias nws cov cim yuav tsis hloov, yog li kom zam dhau kev puas tsuaj tsis tsim nyog.
2. Kev kub siab tsis kam: Thaum ntsuas kub ntawm sodium carboxymethyl cellulose yuav nce siab dua lossis tsawg dua cuam tshuam hauv qhov kub siab. , yog li ntawd, nco ntsoov zam kev kub siab thaum khaws cia.
3. Kev tiv thaiv hluav taws: Vim tias sodium carboxymethyl cellulose cov organic, nws yuav tsis muaj peev xwm txuas ntxiv rau hauv hluav taws, yog li ntawd tshwj xeeb yuav tsum tau them rau kev tiv thaiv hluav taws thaum khaws cia.
Lub Sijhawm Post: Nov-10-2022