Muaj ntau yam cuam tshuam rau daim ntawv thov ntawm hydroxypropyl methylcellulose HPMC hauv cov ntaub ntawv hauv tsev, tshwj xeeb tshaj yog gypsum-based plaster, raws li hauv qab no:
1 kev tuav dej
Hydroxypropyl methylcellulose rau kev tsim kho tiv thaiv kev nqus dej ntau dhau los ntawm lub substrate, thiab thaum lub gypsum tau teeb tsa tiav, cov dej yuav tsum tau khaws cia hauv plaster ntau li ntau tau. Cov yam ntxwv no yog hu ua dej tuav thiab yog ncaj qha proportional rau lub viscosity ntawm kev tsim kho-specific hydroxypropyl methylcellulose tov nyob rau hauv lub stucco. Qhov siab dua qhov viscosity ntawm cov tshuaj, nws cov dej tuav tau ntau dua. Thaum cov ntsiab lus ntawm cov dej nce ntxiv, qhov peev xwm khaws dej yuav txo qis. Qhov no yog vim hais tias cov dej nce ntxiv dilutes cov tshuaj hydroxypropyl methylcellulose rau kev tsim kho, ua rau txo qis viscosity.
2 anti-sagging
Lub plaster nrog anti-sag zog tso cai rau cov neeg siv los siv cov tsho tuab tuab yam tsis muaj sagging, thiab tseem txhais tau hais tias lub plaster nws tus kheej tsis yog thixotropic, uas yuav txwv tsis pub xaub thaum lub sij hawm thov.
3 Txo viscosity, kev tsim kho yooj yim
Tsawg-viscosity thiab yooj yim-rau-tsim gypsum plaster tuaj yeem tau los ntawm kev ntxiv ntau lub tsev tshwj xeeb hydroxypropyl methylcellulose cov khoom. Thaum siv cov qib qis-viscosity ntawm lub tsev tshwj xeeb hydroxypropyl methylcellulose, qib ntawm viscosity kuj txo Cov kev tsim kho tau yooj yim dua, tab sis cov dej tuav lub peev xwm ntawm low-viscosity hydroxypropyl methylcellulose rau kev tsim kho tsis muaj zog, thiab cov nyiaj ntxiv yuav tsum tau nce ntxiv.
4 Compatibility ntawm stucco
Rau qhov ruaj khov ntawm cov mortar qhuav, nws yog qhov kev lag luam ntau dua los tsim cov ntim ntau dua ntawm cov khib nyiab ntub dej, uas tuaj yeem ua tiav los ntawm kev ntxiv dej thiab cua npuas. Tab sis tus nqi ntawm cov dej thiab cua npuas yog ntau dhau
Post lub sij hawm: Apr-20-2023