Hydroxypropyl Methyl Cellulose HPMC rau mortar

Hydroxypropyl methylcellulose (HPMC) yog dav siv nyob rau hauv kev tsim kho kev lag luam raws li ib tug additive nyob rau hauv cement-based khoom, xws li mortar. Mortar yog ib qho sib xyaw ntawm cov cement, xuab zeb, thiab dej uas siv los ua cov cib, blocks, thiab lwm yam khoom siv hauv tsev. HPMC yog siv rau hauv mortar los txhim kho nws cov kev ua haujlwm, adhesion, dej tuav, thiab lwm yam khoom.

Kev siv HPMC hauv mortar, xws li qib MP200M, suav nrog ntau qhov kev txiav txim siab, suav nrog cov khoom xav tau ntawm mortar, cov ntawv thov tshwj xeeb, thiab ib puag ncig. Feem ntau, qhov sib ntxiv ntawm HPMC rau mortar tuaj yeem txhim kho qhov sib xws, ua haujlwm tau zoo, thiab ua haujlwm ntev ntawm cov mortar, ua kom yooj yim rau kev lis thiab siv.

Ib qho ntawm cov haujlwm tseem ceeb ntawm HPMC hauv mortar yog txhawm rau txhim kho kev ua haujlwm ntawm qhov sib tov. HPMC ua raws li cov thickener thiab dej-retaining tus neeg sawv cev, tso cai rau lub mortar kom muaj ib tug du, zoo sib xws uas yog ib qho yooj yim mus kis thiab ua hauj lwm nrog. Qhov no yuav pab txo qis cov dej uas xav tau hauv kev sib tov, uas ua rau txhim kho lub zog thiab kav ntev ntawm cov tshuaj khib nyiab.

Ntxiv nrog rau kev txhim kho kev ua haujlwm, HPMC kuj tuaj yeem txhim kho qhov adhesion thiab kev sib txuas ntawm cov khoom khib nyiab. Qhov sib ntxiv ntawm HPMC rau kev sib xyaw ua ke pab txhim kho kev sib koom ua ke ntawm cov tshuaj khib thiab cov substrate, uas txhim kho lub zog ntawm daim ntawv cog lus. Qhov no yog qhov tseem ceeb tshwj xeeb tshaj yog rau cov ntawv thov xws li tiling thiab flooring, qhov twg cov mortar yuav tsum ua raws nraim rau lub substrate kom tsis txhob tawg lossis delamination.

Lwm yam khoom tseem ceeb ntawm HPMC hauv mortar yog nws lub peev xwm tuav dej. HPMC ua tus neeg saib xyuas dej, pab cov tshuaj khib kom khaws cov dej kom ntev dua. Qhov no yog qhov tseem ceeb rau kev ua kom zoo thiab kev teeb tsa ntawm cov tshuaj khib nyiab, nrog rau kev txhim kho tag nrho lub zog thiab kav ntev ntawm cov khoom kho.

Kev siv HPMC hauv mortar kuj tuaj yeem txhim kho qhov ua haujlwm ntev thiab ua haujlwm ntawm cov mortar rau ib puag ncig xws li kev hloov pauv kub, av noo, thiab tshuaj lom neeg raug. HPMC pab tiv thaiv cov mortar los ntawm kev puas tsuaj los ntawm cov xwm txheej no, txhim kho nws lub neej ntev thiab kev ua haujlwm tag nrho.

Thaum siv HPMC hauv mortar, nws yog ib qho tseem ceeb uas yuav tau xav txog qib tshwj xeeb ntawm HPMC uas xav tau rau daim ntawv thov. Piv txwv li, MP200M qib ntawm HPMC yog tsim tshwj xeeb rau kev siv hauv mortar thiab lwm yam khoom siv cement. Qib no ntawm HPMC muaj qhov hnyav molecular thiab qib qis ntawm kev hloov pauv, ua rau nws zoo tagnrho rau kev siv hauv kev tsim kho uas yuav tsum muaj kev ua haujlwm siab thiab sib xws.

Tus nqi ntawm HPMC xav tau nyob rau hauv mortar tuaj yeem sib txawv nyob ntawm cov ntawv thov tshwj xeeb thiab ib puag ncig. Feem ntau, qhov ntau npaum li cas ntawm 0.1-0.5% los ntawm qhov hnyav ntawm cov cement yog pom zoo rau feem ntau daim ntawv thov. Txawm li cas los xij, qhov no yuav tsum tau hloov kho raws li qhov ntsuas kub, av noo, thiab cov khoom tshwj xeeb ntawm cov cement thiab lwm cov khoom xyaw hauv cov khoom sib xyaw.

Hauv kev xaus, kev siv HPMC hauv mortar, xws li qib MP200M, tuaj yeem muab ntau yam txiaj ntsig ntawm kev ua haujlwm, adhesion, dej tuav, thiab kav ntev. Thaum siv kom tsim nyog, HPMC tuaj yeem pab txhim kho kev ua haujlwm thiab kev ua haujlwm ntev ntawm cov khoom siv cement, ua rau lawv txhim khu kev qha thiab ua haujlwm tau zoo hauv ntau hom kev siv.