Lub luag haujlwm ntawm cellulose ether ua haujlwm li cas hauv kev tsim kho?

Cellulose ether, xws li Hydroxypropyl Methyl Cellulose (HPMC) thiab Methyl Hydroxyethyl Cellulose (MHEC), ua lub luag haujlwm tseem ceeb hauv kev tsim kho kev lag luam. Cov cellulose derivatives yog dav siv los ua additives nyob rau hauv ntau yam ntaub ntawv hauv tsev vim lawv cov khoom tshwj xeeb thiab qhov zoo.

Cellulose ether yog lub ntuj polymer muab tau los ntawm kev ua kom zoo ntawm cov paj rwb linter, uas yog cov khoom tseem ceeb ntawm cov phab ntsa ntawm cov nroj tsuag. Hauv kev tsim kho, lawv feem ntau yog siv los ua cov thickeners, adhesives, dej tuav cov neeg ua haujlwm thiab rheology modifiers hauv cov khoom siv cement xws li mortars, plasters thiab pobzeb adhesives. Cov additives no txhim kho kev ua haujlwm, adhesion thiab sib xws ntawm cov khoom siv hauv tsev, yog li txhim kho kev ua haujlwm thiab ua haujlwm ntev ntawm cov qauv kawg.

Ib lub luag haujlwm tseem ceeb ntawm cellulose ether hauv kev tsim kho yog lawv lub peev xwm los txhim kho cov dej tuav ntawm cov cementitious sib tov. Qhov no yog qhov tseem ceeb los tiv thaiv cov dej kom sai sai ntawm cov mortar tshiab lossis pob zeb, uas tuaj yeem ua rau tawg thiab tsis muaj zog. Los ntawm khaws cov dej hauv qhov sib tov, cellulose ether pab txhawb kom dej zoo dua ntawm cov cement hais, yog li txhim kho tag nrho cov khoom zoo ntawm cov khoom tawv.

Tsis tas li ntawd, cellulose ether ua raws li cov thickeners zoo, kom ntseeg tau tias cov khoom tsim muaj qhov sib xws thiab yooj yim rau kev thov. Lawv kuj txhim kho cov cohesion thiab adhesion ntawm mortars thiab renders, txhawb kev sib raug zoo zoo rau lub substrate thiab txo cov kev pheej hmoo ntawm delamination los yog tsis ua hauj lwm.

Ntxiv nrog rau lawv cov txiaj ntsig zoo, cellulose ether kuj tseem ua rau muaj kev ruaj ntseg ntawm kev tsim vaj tsev. Raws li ntuj thiab rov ua dua tshiab polymers, lawv muab ib qho kev phooj ywg ib puag ncig rau cov khoom siv hluavtaws, raws li qhov tseem ceeb ntawm cov khoom siv vaj tsev ntsuab thiab kev coj ua.

Zuag qhia tag nrho, cellulose ether xws li HPMC thiab MHEC ua lub luag haujlwm tseem ceeb hauv kev tsim kho niaj hnub los ntawm kev txhim kho kev ua tau zoo, kev ua tau zoo thiab kev ruaj khov ntawm ntau yam khoom siv hauv tsev. Lawv cov kev siv ntau yam thiab muaj txiaj ntsig zoo rau kev ua haujlwm ntawm cov khoom tsim kho ua rau lawv indispensable additives nyob rau hauv kev lag luam. Raws li kev tsim kho txuas ntxiv mus ntxiv, cellulose ethers yuav tsum nyob twj ywm ib qho tseem ceeb hauv kev txhim kho cov qauv zoo thiab ruaj khov.

Ua tsaug rau kev koom tes nrogJINJI CHEMICAL.