Qhov kev sib kis ntawm carboxymethyl cellulose yog tias cov khoom yuav raug decomposed hauv dej, yog li qhov kev sib kis ntawm cov khoom kuj tau dhau los ua ib txoj hauv kev los txiav txim siab nws cov kev ua tau zoo. Cia peb kawm ntxiv txog nws:
1) Ib qho dej ntxiv rau hauv qhov system dispersion tau txais, uas tuaj yeem txhim kho qhov dispersibility ntawm cov khoom colloidal hauv dej, thiab nws yog qhov tsim nyog los xyuas kom meej tias qhov ntau ntawm cov dej ntxiv tsis tuaj yeem yaj cov colloid.
2) Nws yog qhov tsim nyog los faib cov khoom colloidal hauv cov kua nruab nrab uas sib xyaw ua ke hauv dej, tsis yaj hauv cov gels uas yaj hauv dej lossis tsis muaj dej, tab sis nws yuav tsum loj dua qhov ntim ntawm cov khoom colloidal kom lawv tuaj yeem tawg tag nrho. yog cov cawv monohydric xws li methanol thiab ethanol, ethylene glycol, acetone, thiab lwm yam.
3) Yuav tsum ntxiv cov ntsev uas yaj tau hauv dej rau hauv cov kua dej, tab sis cov ntsev tsis tuaj yeem cuam tshuam nrog cov colloid. Nws lub luag haujlwm tseem ceeb yog tiv thaiv cov gel uas yaj tau hauv dej kom tsis txhob ua ib qho nplaum lossis coagulate thiab nag thaum nws so. Feem ntau siv cov sodium chloride thiab lwm yam.
4) Yuav tsum ntxiv ib yam khoom uas yuav tsum tau muab tso rau hauv cov kua dej kom tiv thaiv kom tsis txhob muaj cov kua dej nag los. Cov khoom tseem ceeb uas yuav tsum tau muab tso rau hauv cov kua dej yog glycerin, hydroxypropyl methylcellulose, thiab lwm yam. Cov khoom uas yuav tsum tau muab tso rau hauv cov kua dej yuav tsum yaj tau hauv cov kua dej thiab sib haum nrog cov colloid. Yog tias siv carboxymethyl cellulose, yog tias siv glycerol ua cov khoom uas yuav tsum tau muab tso rau hauv cov kua dej, cov koob tshuaj ib txwm yog li 3% -10% ntawm cov kua dej.
5) Thaum lub sijhawm ua alkalization thiab etherification, cov cationic lossis nonionic surfactants yuav tsum tau ntxiv, thiab yuav tsum tau yaj rau hauv cov kua dej kom sib xws nrog colloids. Cov surfactants feem ntau siv yog lauryl sulfate, glycerin Monoester, propylene glycol fatty acid ester, nws cov koob tshuaj yog li 0.05% -5% ntawm cov kua dej.
Lub sijhawm tshaj tawm: Kaum Ib Hlis-04-2022