Cov qib kev lag luam hydroxypropyl methylcellulose siv rau mortar (ntawm no yog hais txog cov cellulose ntshiab, tsis suav nrog cov khoom hloov kho) yog qhov txawv ntawm viscosity, thiab cov qib hauv qab no feem ntau siv (lub tsev yog viscosity):
Tsawg viscosity: 400
Nws yog tsuas yog siv rau tus kheej-leveling mortar; Lub viscosity tsawg, txawm hais tias cov dej tuav tsis zoo, tab sis cov cuab yeej leveling yog qhov zoo, thiab cov mortar ntom yog siab.
Nruab nrab thiab qis viscosity: 20000-40000
Feem ntau yog siv rau cov pobzeb nplaum, cov tshuaj tua kab mob, cov tshuaj tiv thaiv kev sib tsoo, thermal rwb thaiv tsev sib txuas mortars, thiab lwm yam.; kev tsim kho zoo, dej tsawg dua, siab mortar ntom.
Nruab nrab viscosity: 75000-100000
Feem ntau yog siv rau putty; tuav dej zoo.
Siab viscosity: 150000-200000
Nws yog tsuas yog siv rau polystyrene particle thermal rwb thaiv tsev mortar roj hmab hmoov thiab vitrified microbead thermal rwb thaiv tsev mortar; lub viscosity siab, lub mortar tsis yooj yim rau poob, thiab kev tsim kho tau zoo dua qub.
Hauv kev siv tswv yim, nws yuav tsum raug sau tseg tias nyob rau hauv cov cheeb tsam uas muaj qhov sib txawv ntawm qhov kub thiab txias ntawm lub caij ntuj sov thiab lub caij ntuj no, nws raug nquahu kom siv cov viscosity tsawg hauv lub caij ntuj no, uas yog qhov zoo rau kev tsim kho. Txwv tsis pub, thaum kub qis, viscosity ntawm cellulose yuav nce, thiab txhais tes xav tias yuav hnyav thaum khawb.
Feem ntau hais lus, qhov siab dua qhov viscosity, qhov dej tuav tau zoo dua. Xav txog tus nqi, ntau cov hmoov qhuav mortar factories hloov nruab nrab thiab qis viscosity cellulose (20000-40000) nrog nruab nrab-viscosity cellulose (75000-100000) kom txo tau qhov sib ntxiv. Cov khoom mortar yuav tsum raug xaiv los ntawm cov tuam txhab ua lag luam thiab txheeb xyuas.
Kev sib raug zoo ntawm viscosity thiab kub ntawm HPMC:
Lub viscosity ntawm HPMC yog inversely proportional rau kub, uas yog, lub viscosity nce raws li qhov kub thiab txias. Lub viscosity ntawm ib yam khoom peb feem ntau xa mus rau qhov kev xeem ntawm nws 2% aqueous tov ntawm qhov kub ntawm 20 degrees Celsius.
Post lub sij hawm: Mar-06-2023