Cov qauv ntsuas yooj yim rau hydroxypropyl cellulose ether cov khoom lag luam

1. Cov kws kho mob cellulos (MC, HPMC, HEC)

MC, HPMC, thiab HEC muaj feem ntau siv hauv kev tsim kho putty, pleev xim, cug thiab lwm yam khoom, feem ntau rau dej ceev thiab lubrication. Nws yog qhov zoo.

Kev tshuaj xyuas thiab tus qauv qhia:

Hnyav 3 gram lossis HPMC lossis HPMC lossis HEC, muab tso rau hauv kev daws teeb meem, muab nws lub raj mis li qub, npog cov ntxhia taub lub hau, thiab Muab tso rau hauv kev saib xyuas cov kev hloov pauv ntawm cov kua nplaum hauv cov cheeb tsam ntawm -38 ° C. Yog hais tias cov tshuaj aqueous yog qhov tseeb thiab pob tshab thiab cov viscosity siab thiab zoo fluidity, nws txhais tau tias cov khoom muaj qhov pib zoo. Txuas ntxiv saib xyuas ntau dua 12 lub hlis, thiab nws tseem pheej hloov pauv, qhia tias cov khoom muaj kev nyab xeeb zoo thiab muaj peev xwm siv tau nrog kev ntseeg siab; Yog hais tias cov kua aqueous tau pom tias maj mam hloov pauv xim, ua lub raj mis, muaj cov tshuaj tsw qab, muaj cov tshuaj tsw qab, ua kom cov khoom lag luam raj ntses tsis zoo tias cov khoom lag luam zoo tsis zoo. Yog tias nws yog siv nyob rau hauv kev tsim cov khoom lag luam, nws yuav ua rau cov khoom tsis khov tseem ceeb.

2. CMCI, CMCS

Lub visci thiab CMCI thiab CMCS yog nruab nrab ntawm 4 thiab 8000, thiab lawv feem ntau yog siv nyob rau hauv phab ntsa leveling thiab plastering cov ntaub ntawv sab hauv Putty thiab lub zog ua kom huv thiab lubrication.

Kev tshuaj xyuas thiab tus qauv qhia:

Hnyav 3 Grams ntawm CMCI lossis CMCs, muab tso rau hauv 300 ml ntawm cov dej thiab nplawm kom txog thaum lub kaus mom ntub dej, npog cov ntxhia lub hau, thiab muab tso rau Hauv kev soj ntsuam qhov hloov ntawm nws cov kua aqueous nyob rau hauv ib puag ncig ntawm ℃, yog hais tias cov khoom siv aqueous, nws txhais tau tias cov tshuaj aftent thiab tau sediment, nws txhais tau tias Cov khoom muaj ore hmoov, thiab cov khoom yog kev deev. Cov. Txuas ntxiv saib xyuas ntau dua 6 lub hlis, thiab nws tseem tuaj yeem tsis hloov pauv, qhia tias cov khoom muaj kev nyab xeeb zoo thiab muaj peev xwm siv tau nrog kev ntseeg siab; Yog tias nws tsis tuaj yeem tswj hwm, nws pom tias cov xim yuav hloov maj mam dhau los, yuav muaj cov huab, yuav muaj cov dej tsw qab, muaj qhov tsis ruaj khov, yog siv nyob rau hauv khoom, nws yuav ua rau cov teeb meem zoo


Lub sijhawm Post: Feb-07-2023