Hnub Kawg:3,Lub Xya Hli,2023

Hydroxypropyl methyl cellulose(hpmc)feem ntau yog siv hauv cov hmoov putty nrog viscosity ntawm 100000, thaum mortar muaj cov kev xav tau siab rau viscosity thiab yuav tsum tau xaiv nrog viscosity ntawm 150000 rau kev siv zoo dua. Qhov tseem ceeb tshaj plaws ua haujlwm ntawmhydroxypropyl methyl celluloseyog khaws cia dej, ua raws li thickening. Yog li ntawd, nyob rau hauv putty hmoov, tsuav yog cov dej tuav tau mus txog thiab cov viscosity qis dua, nws kuj tseem ua tau. Feem ntau hais lus, qhov siab dua qhov viscosity, qhov dej tuav tau zoo dua. Txawm li cas los xij, thaum lub viscosity siab tshaj 100000, cov nyhuv ntawm viscosity ntawm cov dej tuav tsis yog qhov tseem ceeb.

Jufu Tsev Khoom QibHydroxypropyl Methyl CelluloseDistinguished los ntawm Viscosity, nws yog feem ntau muab faib ua cov nram qab no hom:

1. Tsawg viscosity: 400 viscosity cellulose, feem ntau yog siv rau tus kheej leveling mortar. Tsis tshua muaj viscosity, zoo flowability, thiab tom qab ntxiv, nws yuav tswj tau cov dej tuav. Cov ntshav tsis pom tseeb, qhov shrinkage me me, thiab tawg yog txo. Nws tseem tuaj yeem tiv taus sedimentation, txhim khu flowability thiab pumpability.
2. Nruab nrab mus rau qis viscosity: 20000 mus rau 50000 viscosity cellulose, feem ntau yog siv rau cov khoom gypsum thiab cov khoom sib koom ua ke. Tsawg viscosity, tuav dej zoo, ua haujlwm tau zoo, thiab tsis muaj dej ntxiv,
3. Nruab nrab viscosity: 75000-100000 viscosity cellulose, feem ntau yog siv rau sab hauv thiab sab nrauv phab ntsa putty. Qhov nruab nrab viscosity, dej tuav tau zoo, thiab kev tsim kho drape zoo.
4. High viscosity: 150000 txog 200000 yuan, feem ntau yog siv rau polystyrene particle rwb thaiv tsev mortar hmoov khoom, vitrified micro hlaws rwb thaiv tsev mortar nrog siab viscosity thiab dej tuav. Lub mortar tsis yooj yim rau poob thiab dai, txhim kho kev tsim kho.
Feem ntau hais lus, qhov siab dua qhov viscosity, qhov dej tuav tau zoo dua. Yog li ntawd, ntau tus neeg muas zaub xaiv siv nruab nrab viscosity cellulose (75000-100000) es tsis txhob nruab nrab qis viscosity cellulose (20000-50000) kom txo cov nqi ntxiv thiab tswj cov nqi.
Lub viscosity ntawmHPMCyog inversely proportional rau kub, nyob rau hauv lwm yam lus, lub viscosity nce nrog ib tug txo nyob rau hauv kub. Lub viscosity ntawm cov khoom txhais tau hais tias nws cov 2% tov yog nyob rau ntawm ib tug kub ntawm 20 degrees Celsius, thiab cov kev ntsuam xyuas yog muaj tseeb.
Hauv cov ntawv thov tshwj xeeb, kev saib xyuas yuav tsum tau them rau cov cheeb tsam uas muaj qhov sib txawv ntawm qhov kub thiab txias ntawm lub caij ntuj sov thiab lub caij ntuj no, thiab nws tau pom zoo kom siv qis viscosity hauv lub caij ntuj no. Txwv tsis pub, yog tias cov viscosity tsawg, viscosity ntawm cellulose yuav nce thiab khawb yuav hnyav.