Raws li kev thov rau cov ntaub ntawv tsim kho loj hlob, yog li xav tau cov khoom ntxiv uas txhim kho kev ua tau zoo thiab kav ntev.High viscosity methylcellulose (HPMC) yog ib qho khoom siv ntxiv thiab tau siv dav hauv kev siv tshuaj khib nyiab qhuav.HPMC yog ntau yam organic compound nrog kev sib txuas zoo thiab cov khoom tuab, ua rau nws zoo tagnrho rau kev tsim kho.
Qhuav mortar yog cov khoom siv nrov siv los ua cov cib, cov blocks thiab lwm yam kev tsim vaj tsev.Nws yog tsim los ntawm kev sib xyaw dej, cement thiab xuab zeb (thiab qee zaum lwm yam khoom ntxiv) los ua ib qho kev sib xyaw ua ke.Nyob ntawm daim ntawv thov thiab ib puag ncig, mortar dries nyob rau hauv ntau theem, thiab txhua theem yuav tsum muaj cov khoom sib txawv.HPMC tuaj yeem muab cov khoom no rau txhua theem, ua rau nws muaj txiaj ntsig zoo ntxiv rau cov mortar qhuav.
Thaum lub sij hawm pib ntawm kev sib tov, HPMC ua raws li ib tug binder, pab tuav lub sib tov ua ke.Lub siab viscosity ntawm HPMC kuj ua kom muaj kev sib xyaw ua ke thiab zoo ib yam, txhim kho kev ua haujlwm thiab txo qhov kev pheej hmoo ntawm kev tawg.Raws li cov sib tov dries thiab hardens, HPMC tsim ib tug tiv thaiv zaj duab xis uas pab tiv thaiv kom txhob shrinkage thiab cracking uas yuav ua rau cov qauv tsis muaj zog.
Ntxiv nrog rau nws cov nplaum thiab tiv thaiv cov khoom, HPMC kuj muaj cov dej tuav tau zoo thiab muaj peev xwm tawg.Qhov no txhais tau hais tias lub mortar tseem siv tau rau lub sijhawm ntev dua, tso cai rau ntau lub sijhawm los kho thiab txhim kho cov khoom tiav.Kev tuav dej kuj tseem ua kom ntseeg tau tias cov mortar tsis qhuav sai heev, uas yuav ua rau tawg thiab txo qhov zoo ntawm qhov project.
Thaum kawg, HPMC kuj yog ib qho zoo heev thickener uas txhim kho tag nrho cov khoom sib tov zoo.Lub thickening zog ntawm HPMC pab txo sagging los yog sagging, uas tuaj yeem tshwm sim thaum sib tov tsis tuab txaus.Qhov no txhais tau hais tias cov khoom tiav yuav zoo ib yam thiab zoo dua, kom ntseeg tau tias nws ua tau raws li qhov yuav tsum tau ua ntawm qhov project.
Zuag qhia tag nrho, siab viscosity methylcellulose yog ib qho tseem ceeb additive rau qhuav mortar daim ntaub ntawv.Nws cov khoom sib txuas, kev tiv thaiv, dej tuav thiab cov khoom tuab kom ntseeg tau tias cov mortar yog qhov zoo tshaj plaws, uas yog qhov tseem ceeb rau kev ua haujlwm ntev thiab kev ua haujlwm ntawm kev tsim kho.Kev siv HPMC hauv kev siv tshuaj khib nyiab tuaj yeem txuas ntxiv lub neej ntawm cov qauv, txo cov nqi tu, thiab txhim kho kev nyab xeeb tag nrho ntawm lub tsev.
Hauv cov ntsiab lus, qhov kev thov rau cov khoom siv hauv tsev loj hlob zuj zus thiab kev siv cov viscosity methylcellulose (HPMC) hauv cov ntaub ntawv qhuav qhuav yog nce.HPMC muaj adhesion zoo, tiv thaiv, dej tuav thiab thickening zog, ua rau nws yog ib qho tseem ceeb additive rau kev tsim kho tej yaam num.Kev siv HPMC hauv cov ntawv siv tshuaj khib nyiab qhuav tsis yog tsuas yog txhim kho kev ua haujlwm thiab ua haujlwm ntev ntawm cov qauv, tab sis kuj txhim kho nws lub neej kev pab cuam thiab tag nrho cov khoom zoo.
Post lub sij hawm: Lub Xya hli ntuj-19-2023