Muaj ntau yam cuam tshuam rau daim ntawv thov ntawm hydroxypropylulose hpmc hauv cov ntaub ntawv hauv tsev, tshwj xeeb tshaj yog gypsum-raws li plaster, raws li hauv qab no:
1 dej tuav tseg
HydroxyPropyyl methylulose rau kev tsim kho tiv thaiv tiv thaiv ntau dhau ntawm substrate, thiab thaum lub gypsum tau tag nrho cov teeb tsa, cov dej yuav tsum khaws cia rau hauv cov plaster kom ntau li ntau tau. Cov xeeb ceem no yog hu ua dej tuav thiab yog ncaj qha rau lub viscosity ntawm kev tsim tawm hydroxypropulose tshuaj hauv stucco. Qhov ntau dua cov viscosity ntawm kev daws teeb meem, qhov siab dua nws cov dej rov ua kom muaj peev xwm. Thaum cov dej cov ntsiab lus yog nce, lub peev xwm kav dej yuav txo qis. Qhov no yog vim hais tias cov dej ntws ntau ntxiv ntawm hydroxypropylencellulose rau kev tsim kho, ua rau muaj kev txo qis.
2 tiv thaiv
Ib lub plaster nrog los tiv thaiv cov cuab yeej ua kom siv cov tsho tiv no thicker tsis sagging, thiab txhais tau tias yog lub plaster mus nws tus kheej tsis yog thixotropic, uas yuav txwv tsis pub dhau lub sijhawm thov.
3 Txo viscosity, kev tsim kho yooj yim
Tsawg-viscosity thiab yooj yim-rau-tsim-tsim-tsim kev plaster tuaj yeem tau los ntawm kev ntxiv ntau lub tsev-im hydroxypropyl methylropulose khoom. Thaum siv cov qib qis-viscosity ntawm lub tsev-tshwj xeeb hydrotyly hydrocosity yog tsis muaj zog, tab sis ntxiv qhov nyiaj yuav tsum tau nce ntxiv.
4 sib piv ntawm stucco
Rau ib qho kev ruaj khov ntawm cov tshuaj khib qhuav, nws yog kev lag luam ntau dua los tsim cov tshuaj cug ntub, uas tuaj yeem ua tiav los ntawm kev ntxiv cov pa dej ntau thiab huab cua. Tab sis tus nqi ntawm cov dej thiab cua npuas yog ntau dhau
Lub Sijhawm Post: Apr-20-2023