Yog vim li cas vim li cas hydroxypropyl methylcellulose yog ntau thiab ntau diluted nyob rau hauv cov hmoov putty

Yog vim li casHydroxypropyl methylcellulose yog tsim los ntawm cov tshuajyog ntau thiab ntau diluted nyob rau hauv cov hmoov putty?

Thaum cov hmoov putty yog tsim thiab siv, ntau yam teeb meem yuav tshwm sim. Tom qab cov hmoov putty tov nrog dej thiab nplawm nrog ib lub tshuab fais fab, lub putty yuav thinner li nws yog stirred, thiab qhov tshwm sim ntawm dej sib cais yuav loj heev. Lub hauv paus ntawm qhov teeb meem no yog putty. Hydroxypropyl methylcellulose ntxiv rau hmoov.

1. Lub viscosity ntawm hydroxypropyl methylcellulose tsis haum, viscosity tsawg dhau, thiab cov nyhuv ncua tsis txaus. Lub sijhawm no, qhov tshwm sim ntawm kev sib cais dej yuav loj heev, thiab cov txiaj ntsig ntawm kev ncua tsis tuaj yeem cuam tshuam.

2. Hydroxypropyl methylcellulose dej-retaining tus neeg sawv cev yog ntxiv rau cov hmoov putty, uas muaj cov nyhuv dej zoo heev. Thaum lub putty yog yaj nyob rau hauv dej, nws locks ib tug loj npaum li cas ntawm cov dej. Lub sijhawm no, dej ntau yog flocculated rau hauv dej. Lub pob, nrog nplawm, dej ntau yog sib cais, yog li muaj teeb meem uas qhov ntau koj do, qhov thinner nws ua; qhov no yog ib qho teeb meem tshwm sim, thiab ntau tus neeg tau ntsib cov teeb meem zoo li no. Tus nqi ntawm cellulose ntxiv los yog ntxiv cov dej noo tuaj yeem txo kom tsim nyog.

3. Hydroxypropyl methylcellulose yog sivmuaj kev sib raug zoo nrog nws tus kheej cov qauv. Nws muaj thixotropy, yog li tag nrho cov txheej txheej muaj qee yam thixotropy tom qab ntxiv cellulose, yog li thaum lub putty tau nrawm nrawm, nws cov qauv tag nrho tawg, nws tshwm ntau dua thiab nyias, tab sis thaum nyob ruaj ruaj, nws maj mam rov qab.