Thaum qhov kev thov rau cov ntaub ntawv siv hauv kev tsim kho loj hlob tuaj, qhov kev xav tau cov khoom ntxiv uas ua rau kev ua haujlwm zoo dua thiab ruaj khov kuj nce ntxiv. Cov methylcellulose uas muaj viscosity siab (HPMC) yog ib qho khoom ntxiv thiab siv dav hauv cov ntawv thov mortar qhuav. HPMC yog cov organic compound uas muaj ntau yam kev sib txuas zoo heev thiab cov khoom tuab, ua rau nws zoo tagnrho rau cov haujlwm tsim kho.
Cov av nplaum qhuav yog ib yam khoom siv nrov siv los ua cov cib, cov thaiv thiab lwm yam qauv tsev. Nws yog ua los ntawm kev sib tov dej, cement thiab xuab zeb (thiab qee zaum lwm yam khoom ntxiv) los ua ib qho nplaum du thiab sib xws. Nyob ntawm daim ntawv thov thiab ib puag ncig, cov av nplaum qhuav hauv ntau theem, thiab txhua theem xav tau cov khoom sib txawv. HPMC tuaj yeem muab cov khoom no ntawm txhua theem, ua rau nws yog ib qho ntxiv zoo rau cov av nplaum qhuav.
Thaum pib sib tov, HPMC ua haujlwm ua tus khi, pab tuav cov khoom sib tov ua ke. Qhov viscosity siab ntawm HPMC kuj ua kom muaj kev sib tov du thiab sib xws, txhim kho kev ua haujlwm thiab txo qhov kev pheej hmoo ntawm kev tawg. Thaum cov khoom sib tov qhuav thiab tawv, HPMC tsim cov zaj duab xis tiv thaiv uas pab tiv thaiv kev ntsws thiab tawg uas tuaj yeem ua rau cov qauv tsis muaj zog.
Ntxiv rau nws cov khoom nplaum thiab kev tiv thaiv, HPMC kuj muaj peev xwm khaws dej thiab tawg tau zoo heev. Qhov no txhais tau tias cov mortar tseem siv tau ntev dua, tso cai rau ntau lub sijhawm los kho thiab txhim kho cov khoom tiav. Kev khaws dej kuj ua kom ntseeg tau tias cov mortar tsis qhuav sai dhau, uas yuav ua rau tawg thiab txo qhov zoo ntawm qhov project.
Thaum kawg, HPMC kuj yog ib qho khoom ua kom tuab zoo heev uas txhim kho qhov zoo ntawm qhov sib tov. Cov khoom ua kom tuab ntawm HPMC pab txo qhov sagging lossis sagging, uas tuaj yeem tshwm sim thaum qhov sib tov tsis tuab txaus. Qhov no txhais tau tias cov khoom tiav lawm yuav sib xws dua thiab zoo dua, kom ntseeg tau tias nws ua tau raws li qhov yuav tsum tau ua ntawm qhov project.
Zuag qhia tag nrho, methylcellulose uas muaj viscosity siab yog ib qho khoom siv tseem ceeb rau kev siv cov mortar qhuav. Nws cov khoom sib txuas, kev tiv thaiv, kev khaws dej thiab kev ua kom tuab ua kom cov mortar zoo tshaj plaws, uas yog qhov tseem ceeb rau kev ua haujlwm ntev thiab kev ua haujlwm ntawm cov haujlwm tsim kho. Kev siv HPMC hauv kev siv mortar qhuav kuj tseem tuaj yeem ua rau lub neej ntawm cov qauv ntev dua, txo cov nqi kho, thiab txhim kho kev nyab xeeb ntawm lub tsev.
Hauv kev xaus, qhov kev thov rau cov ntaub ntawv ua haujlwm siab hauv tsev tab tom loj hlob thiab kev siv cov methylcellulose viscosity siab (HPMC) hauv cov ntawv thov mortar qhuav tab tom nce ntxiv. HPMC muaj cov khoom nplaum zoo heev, kev tiv thaiv, kev khaws dej thiab cov khoom tuab, ua rau nws yog ib qho khoom ntxiv tseem ceeb rau cov haujlwm tsim kho. Kev siv HPMC hauv cov ntawv thov mortar qhuav tsis yog tsuas yog txhim kho kev ua tau zoo thiab kev ruaj khov ntawm cov qauv, tab sis kuj txhim kho nws lub neej kev pabcuam thiab qhov zoo tag nrho.
Lub sijhawm tshaj tawm: Lub Xya Hli-19-2023