Cellulose yog dav siv nyob rau hauv thermal rwb thaiv tsev mortar masterbatch, putty hmoov, asphalt txoj kev, gypsum khoom thiab lwm yam lag luam. Nws muaj cov yam ntxwv ntawm kev txhim kho thiab txhim kho cov khoom siv hauv tsev, thiab txhim kho kev ruaj khov thiab kev tsim kho kom haum. Hnub no, kuv yuav qhia koj txog cov teeb meem tshwm sim los ntawm cellulose thaum siv cov hmoov putty.
(1) Tom qab cov hmoov sib tov sib xyaw nrog dej, qhov ntau nws yog do, qhov thinner nws ua.
Cellulose yog siv los ua cov thickener thiab dej-retaining tus neeg sawv cev hauv cov hmoov putty. Vim lub thixotropy ntawm cellulose nws tus kheej, qhov sib ntxiv ntawm cellulose nyob rau hauv putty hmoov kuj ua rau thixotropy tom qab lub putty yog tov nrog dej. Hom thixotropy no yog tshwm sim los ntawm kev puas tsuaj ntawm cov qauv xoob xoob ntawm cov khoom hauv cov hmoov putty. Cov qauv zoo li no tshwm sim thaum so thiab tawg hauv kev ntxhov siab.
(2) Lub putty yog hnyav heev thaum lub sij hawm scraping txheej txheem.
Qhov xwm txheej no feem ntau tshwm sim vim qhov viscosity ntawm cellulose siv yog siab dhau. Qhov pom zoo ntxiv ntawm cov phab ntsa sab hauv yog 3-5kg, thiab viscosity yog 80,000-100,000.
(3) Lub viscosity ntawm cellulose nrog tib viscosity txawv nyob rau lub caij ntuj no thiab lub caij ntuj sov.
Vim yog thermal gelation ntawm cellulose, viscosity ntawm putty thiab mortar ua yuav maj mam txo nrog qhov kub thiab txias. Thaum qhov kub siab tshaj qhov kub ntawm cellulose gel, cellulose yuav precipitated los ntawm dej, yog li poob viscosity. Nws raug nquahu kom xaiv cov khoom uas muaj viscosity siab dua thaum siv cov khoom nyob rau lub caij ntuj sov, los yog ua kom cov cellulose nce, thiab xaiv cov khoom uas muaj gel kub dua. Sim tsis txhob siv methyl cellulose thaum lub caij ntuj sov. Nyob ib ncig ntawm 55 degrees, qhov kub siab dua me ntsis, thiab nws cov viscosity yuav cuam tshuam zoo heev.
Txhawm rau ua kom tiav, cellulose yog siv rau hauv cov hmoov putty thiab lwm yam kev lag luam, uas tuaj yeem txhim kho fluidity, txo qhov ntom ntom, muaj huab cua zoo permeability, thiab yog ntsuab thiab ib puag ncig tus phooj ywg. Nws yog qhov kev xaiv zoo tshaj plaws rau peb xaiv thiab siv.
Post lub sij hawm: May-17-2023