Lub dispersibility ntawm carboxymethyl cellulose yog tias cov khoom yuav decomposed nyob rau hauv dej, yog li cov dispersibility ntawm cov khoom kuj yog ib txoj kev los txiav txim nws cov kev ua tau zoo. Cia peb kawm ntxiv txog nws:
1) Muaj qee qhov dej ntxiv rau qhov tau txais kev sib cais, uas tuaj yeem txhim kho qhov sib txawv ntawm cov colloidal hais hauv dej, thiab nws yog ib qho tsim nyog los xyuas kom meej tias cov dej ntxiv tsis tuaj yeem yaj cov colloid.
2) Nws yog ib qho tsim nyog yuav tsum tau disperse cov colloidal hais nyob rau hauv cov kua nruab nrab uas yog miscible nyob rau hauv dej, insoluble nyob rau hauv dej-soluble gels los yog tsis muaj dej, tab sis nws yuav tsum loj dua lub ntim ntawm cov colloidal hais kom lawv muaj peev xwm dispersed tag nrho. . yog monohydric cawv xws li methanol thiab ethanol, ethylene glycol, acetone, thiab lwm yam.
3) Ib qho dej-soluble ntsev yuav tsum tau ntxiv rau cov kua hauv lub cev, tab sis cov ntsev tsis tuaj yeem cuam tshuam nrog cov colloid. Nws lub luag haujlwm tseem ceeb yog tiv thaiv cov dej-soluble gel los ntawm kev tsim cov tshuaj txhuam los yog coagulating thiab nag lossis daus thaum nws so. Feem ntau siv yog sodium chloride thiab lwm yam.
4) Nws yog ib qho tsim nyog yuav tau ntxiv tus neeg sawv cev ncua mus rau cov kua nqa khoom kom tiv thaiv qhov tshwm sim ntawm gel nag lossis daus. Tus neeg sawv cev tseem ceeb tuaj yeem yog glycerin, hydroxypropyl methylcellulose, thiab lwm yam. Tus neeg saib xyuas kev ncua yuav tsum tau soluble hauv cov kua ua kua thiab sib haum nrog cov colloid. Rau carboxymethyl cellulose, yog tias glycerol yog siv los ua tus neeg sawv cev ncua, qhov ntau npaum li cas yog kwv yees li 3% -10% ntawm cov kua ua kua.
5) Nyob rau hauv tus txheej txheem ntawm alkalization thiab etherification, cationic los yog nonionic surfactants yuav tsum tau ntxiv, thiab yuav tsum tau yaj nyob rau hauv cov kua cab kuj yuav sib xws nrog colloids. Feem ntau siv surfactants yog lauryl sulfate, glycerin Monoester, propylene glycol fatty acid ester, nws npaum li cas yog hais txog 0.05% -5% ntawm cov cab kuj.
Post lub sij hawm: Nov-04-2022