- Hydroxypropyl methyl cellulose cov khoom siv rau kev tsim kho yog dav siv los txhim kho kev ua haujlwm ntawm hydrocoagulant tsev cov ntaub ntawv, xws li cov cement thiab gypsum.Nyob rau hauv cov cement-based mortars, nws txhim kho cov dej tuav, ncua sij hawm kho thiab qhib lub sijhawm, thiab txo qis ntws.
- 1. Kev tuav dej
- Tsim tshwj xeeb hydroxypropyl methyl cellulose kom tsis txhob muaj dej nkag mus rau hauv phab ntsa.Qhov tsim nyog cov dej nyob twj ywm nyob rau hauv lub mortar, kom cov cement muaj lub sij hawm ntev rau hydration.Cov dej tuav yog proportional rau viscosity ntawm cellulose ether tov nyob rau hauv lub mortar.Qhov siab dua qhov viscosity, qhov dej tuav tau zoo dua.Raws li cov dej molecules nce, cov dej khaws cia tsawg.Vim hais tias rau tib tus nqi ntawm lub tsev mob siab rau hydroxypropyl methyl cellulose tov, qhov nce hauv dej txhais tau tias cov viscosity txo.Kev txhim kho ntawm kev tuav dej yuav ua rau txuas ntxiv ntawm lub sijhawm kho ntawm mortar hauv kev tsim kho.
- 2. txhim kho kev tsim kho
- Daim ntawv thov Hydroxypropyl methyl cellulose HPMC tuaj yeem txhim kho kev siv tshuaj khib nyiab.
- 3.lub peev xwm
- Txhua tus neeg ua haujlwm huab cua ua haujlwm ua cov dej ntub dej los ntawm kev txo qhov nro thiab pab cov hmoov zoo hauv cov tshuaj khib kom tawg thaum sib xyaw nrog dej.
- 4. Anti-flow dai -
- Qhov zoo ndlwg resistant mortar txhais tau hais tias tsis muaj kev txaus ntshai ntawm ntws dai los yog downward flow thaum ua hauj lwm nyob rau hauv tuab txheej.Flow resistance tuaj yeem txhim kho los ntawm kev tsim kho hydroxypropyl methyl cellulose.Tshwj xeeb tshaj yog tsim kho tshiab lub tsev nplooj siab hydroxypropyl methyl cellulose tuaj yeem muab cov tshuaj khib nyiab zoo dua ntws ua haujlwm dai
- 5. Cov ntsiab lus npuas
- Cov ntsiab lus npuas siab ua rau kom zoo dua mortar tawm los thiab ua haujlwm tau zoo, txo qis kev tawg.Nws kuj txo cov nqi zog, "liquefaction" tshwm sim.Cov ntsiab lus npuas feem ntau yog nyob ntawm lub sijhawm nplawm.
Post lub sij hawm: Nov-21-2022