Yuav kom nce lub ntsev sodium carboxymethyl cellulose thiab cov kev hnov mob thiab reactivity ntawm cov chemistry thiab txoj kev kho mob feem ntau yog cov paj loj, cov tshuaj tiv thaiv kev sib xyaw ntawm cov reagent sib xyaw ntawm sodium carboxymethyl cellulose, thiab cov tshuaj tiv thaiv, ntxiv rau qhov o ntawm qhov saum npoo- cov khoom lag luam, los txhim kho microporous qauv.
Peb twb paub, sodium carboxymethyl cellulose, soluble hauv dej, carboxymethyl cellulose hydrogen bonds yuav raug kaw ntawm cov molecular chains, qhib pore qauv, yog li ua tau zoo heev sodium carboxymethyl cellulose hauv Internal deg cheeb tsam, ua rau cov tshuaj tiv thaiv kev ua tau zoo, thiab yog li no carboxymethyl cellulose alkalization, etherification ras txog, yuav tsum muaj dej tau.
Kev nthuav tawm ntawm cov ntsev sodium carboxymethyl cellulose, thaj tsam deg yuav nce mus txog 50 zaus, tus nqi ntawm esterification thiab insulating plaub-fold nce. Tom qab Hydra o, tshuaj reagents rau kev nkag mus, diffusion yuav ua si lub luag haujlwm. Tus nab npawb ntawm cov pore inch 5.Ox10m txhawb zog sai heev. Hauv theem pib sodium carboxymethyl cellulose, sodium ions dej dej txheej txheej ua ib feem ntawm cov khoom qub txheej thaum ub. Cov khoom ntawm cov paj rwb phom ntau hauv cov phom, cov dej los ntawm cov dej, lub hauv paus ntawm lub hauv paus tsim muaj paj rwb, paj rwb pov tseg dej ntawm lub sij hawm no yog 145%. Linters ntawm 16-18% NaOH aqueous tov ntawm chaav lim dej, muab ntxhua dej sodium hydroxide, thiab tsis muaj ziab, thiab fibers tau txum tim rov qab mus rau qhov qub ntim ntawm lub xeev qub ntawm qhov dej retention ntawm 115% -118 ntawm% , yog li qhov xaus yog qhov dej txhuab Zhang kuj muaj zog.
Nws yog qhov tseem ceeb tshaj yog tias tom qab kev nthuav tawm ntawm cov dej sodium carboxymethyl cellulose thiab qhuav los ntawm ziab, molecular saw thiab tuaj yeem ua rau rov qhib cov hydrogen-bonded ua ke, cov dej tau muab tua los kuj yuav ntxeem tau, uas tshwm sim yog hu ua keratinization cov teebmeem, Piv txwv tias qhov kub kom qhuav yog siab dhau lawm, qhov ziab zis sai dhau lawm thiab ces qhov ua rau lub cev tsis zoo dua li qhov dej pub ua ntej qhov kev ua tau zoo ntawm cov tshuaj sodium carboxymethyl cellulose. Thaum twg cov dej huv qhuav tsis yog 155%, 20 ℃ hauv qhov ziab ntawm 106%, 105 ℃ drying yog 77%, 150 ℃ hauv tshuab ziab rau 78%. Yog li, qhuav pulp tseem ceeb heev.
Pretreatment sodium carboxymethyl cellulose kom to taub cov ntsiab lus tseem ceeb no.