HydroxyPropyyl methylcellose (HPMC) yog cov khoom siv tseem ceeb tsim thiab siv dav hlau, tshuaj khib, thiab cov nplaum.
HPMC muaj cov dej ua haujlwm zoo heev. Hauv cov ntaub ntawv tsim kho xws li Mortars thiab pobzeb cov nplaum, noo noo kev khaws cia yog qhov tseem ceeb rau cov khoom siv ua haujlwm thiab nyiaj txiag lub zog. Los ntawm kev nqus dej thiab tso dej, hpmc tuaj yeem txuas ntxiv mus rau cov khoom siv tsim kho kom nrawm dua, thiab tiv thaiv kev tawg lossis tsis sib tawg.
HPMC muaj cov khoom siv hluav taws xob zoo. Nws tuaj yeem txhim kho kom haum rau lub fluidity thiab cov haujlwm tsim tsev, ua rau cov khoom siv tau yooj yim siv, du thiab ua haujlwm, yog li txhim kho kev tsim kho kev tsim kho thiab zoo. Tshwj xeeb tshaj yog thaum muaj thaj chaw tsim hluav taws xob hauv phab ntsa lossis cov ncauj lus kom ntxaws, cov ntaub ntawv nrog cov fluibity zoo tuaj yeem ua kom tsis txhob muaj clumping lossis tsis sib luag.
HPMC muaj adhesion zoo heev. Nws tuaj yeem txhim kho txoj kev sib raug zoo ntawm cov cement, tshuaj khib thiab lwm yam khoom ua haujlwm zoo nkauj ntawm cov ntaub ntawv thiab cov txheej txheej, tiv thaiv kom tsis txhob muaj kev tawg. Tshwj xeeb tshaj yog nyob rau hauv kev siv cov nplais ceramic bines dolling thiab phab ntsa txheej ntsa, cov khoom sib khi ntawm hydroxyroplcellulose tuaj yeem txhim kho qhov ruaj khov thiab ruaj khov ntawm cov qauv txheej txheem.
Lwm qhov tseem ceeb ntawm HPMC yog nws lub peev xwm los tswj lub sijhawm siv kev tsim kho. Los ntawm kev tswj hwm tus nqi HPMC ntxiv, thawj lub sijhawm thaum pib ntawm Maas thiab tshuaj khib tau kho tau. Cov xeeb ceem no ua nws daim ntawv thov hauv cov chaw sib txawv sib txawv dua, tshwj xeeb tshaj yog huab cua sov lossis av noo. Nws tuaj yeem ntseeg tias cov Maas slurry yuav tsis nyuaj dhau thaum lub sijhawm tsim kho thiab txuas ntxiv lub sijhawm ua haujlwm.
Los ntawm ib puag ncig kev tiv thaiv taw tes pom, hpmc yog cov khoom siv ib puag ncig. Nws yog siv tshuaj hloov kho los ntawm ntuj cog fibers (xws li ntoo, paj rwb, thiab tsis muaj cov tshuaj muaj teeb meem. Txoj kev thov dav HPMC pab txo cov pa hluav taws xob ua kom puas tsuaj hauv kev tsim kho lub tsev thiab ua kom tau cov tsev tshiab tshiab.
Qhov tawg tsis kam thiab kev laus tsis kam ntawm HPMC hauv kev tsim kho kuj yog ib qho ntawm nws qhov tseem ceeb. Sij hawm dhau los, yuav muaj cov ntaub ntawv hauv tsev, yuav cuam tshuam los ntawm ntau yam lwm tus, thiab teeb meem xws li cov kab nrib pleb thiab kev nruam yuav tshwm sim. Qhov kev sib txuas ntawm HPMC tuaj yeem txhim kho kev nruj ntawm cov khoom siv thiab kev tsim tawm los ntawm kev nthuav dav los ntawm thermal nthuav tawm los ntawm kev sib zog lossis sab nraud, yog li txuas ntxiv rau lub neej ntawm cov khoom lag luam hauv tsev.
Daim ntawv thov ntawm hydroxypropylencellulose hauv cov teb tsim muaj ntau yam zoo xws li kev siv dej zoo nkauj, cov khoom siv hluav taws xob, kev hloov kho lub peev xwm thiab tawg tsis taus. Nws tau dhau los ua qhov tseem ceeb hauv kev txhim kho kev tsim kho zoo thiab ua kom lub tsev ua haujlwm durability ntawm cov vaj tse niaj hnub. Nws yog tus tseem ceeb ntxiv ntxiv txhim kho kev tiv thaiv kev nyab xeeb thiab ib puag ncig qib.
Lub sijhawm Post: Feb-15-2025