Ib qho nyiaj ntawm hydroxypropyl methylcellulose ether khaws cov dej hauv cov mortar rau lub sijhawm txaus los txhawb cov dej tsis tu ncua ntawm cov cement thiab txhim kho cov adhesion ntawm cov tshuaj khib thiab cov substrate.
Cov nyhuv ntawm qhov loj me thiab sib tov lub sij hawm ntawm Hydroxypropyl Methyl Cellulose Ether ntawm Dej Retention
Cov dej tuav lub peev xwm ntawm mortar feem ntau yog tswj los ntawm lub sij hawm dissolution, thiab lub finer cellulose dissolves sai dua, thiab ceev cov dej tuav lub peev xwm yog. Rau kev tsim kho tshuab, vim lub sijhawm txwv, kev xaiv ntawm cellulose yuav tsum yog cov hmoov zoo. Rau tes plastering, hmoov zoo yuav ua.
Qhov cuam tshuam ntawm Etherification Degree thiab Kub ntawm Hydroxypropyl Methyl Cellulose Ether ntawm Dej Retention
Lub solubility thiab kub ntawm hydroxypropyl methylcellulose nyob rau hauv dej nyob ntawm seb qhov degree ntawm etherification. Raws li qhov kub ntawm sab nraud nce, cov dej tuav tau txo qis; qhov siab dua qhov degree ntawm etherification, qhov zoo dua cov dej tuav ntawm cellulose ether.
Cov nyhuv ntawm hydroxypropyl methylcellulose ether ntawm qhov sib xws thiab plam tsis kam ntawm mortar
Qhov sib xws thiab cov cuab yeej tiv thaiv zawv zawg ntawm mortar yog qhov tseem ceeb heev, ob qho tib si rau cov txheej txheej tuab thiab cov nplais nplaum yuav tsum tsim kom muaj qhov sib xws thiab cov cuab yeej tiv thaiv zawv zawg.
Txoj kev ntsuas kev sib raug zoo, txiav txim siab raws li JG / J70-2009 tus qauv
Kev sib xyaw ua ke thiab plam tsis kam yog pom tau los ntawm viscosity thiab particle loj ntawm hydroxypropyl methylcellulose. Nrog rau qhov nce ntawm viscosity thiab cov ntsiab lus, qhov sib xws ntawm mortar nce; qhov finer qhov me me, qhov siab dua qhov pib sib xws ntawm cov tshuaj khib nyiab tshiab. ceev.
Cov nyhuv ntawm Hydroxypropyl Methyl Cellulose ntawm Cua nkag ntawm mortar
Vim yog qhov sib ntxiv ntawm hydroxypropyl methylcellulose nyob rau hauv lub mortar, ib qho nyiaj me me, zoo li qub thiab ruaj khov huab cua npuas tau nkag mus rau hauv cov tshuaj khib nyiab tshiab. Vim cov nyhuv pob, lub mortar muaj kev tsim kho tau zoo thiab txo qhov shrinkage thiab torsion ntawm lub mortar. Cracks, thiab nce tus nqi tso zis ntawm mortar. Cellulose muaj kev ua haujlwm ntawm huab cua. Thaum ntxiv cellulose, xav txog qhov ntau npaum li cas, viscosity (siab viscosity ntau dhau yuav cuam tshuam rau kev ua haujlwm), thiab huab cua nkag. Xaiv cov cellulose rau cov mortars sib txawv.
Post lub sij hawm: Mar-29-2023