HydroxyPropyyl methylcellueculose (HPMC) yog ib qho tseem ceeb dej-soluble cellulose cellulose derivative nrog ntau cov ntawv thov, tshwj xeeb yog hauv kev tsim kho cov ntaub ntawv. Hauv Gypsum khoom, HPMC feem ntau siv los ua cov tuab dua, cov dej hle, tsis sib xws thiab siv cov nyhuv ntawm gypsum.
1. Txhim khu cov kev ua haujlwm ntawm Gypsum Slurry
Gypsum slurry yog cov khoom siv dav siv hauv kev tsim kho, tshwj xeeb hauv kev kho kom zoo nkauj thiab dai kom zoo nkauj. Thaum siv ntawm gypsum slurry, yuav ua li cas kom ntseeg tau tias cov neeg ua haujlwm tsim kho tuaj yeem ua lag luam ntawm cov khoom yog qhov teeb meem tseem ceeb. HPMC muaj cov khoom siv thicking zoo thiab tuaj yeem tsim lub cav ruaj khov hauv gypsum slurry kom tsis txhob ua tau zoo heev lossis hloov kho tau zoo ntawm gypsum slurry.
Tshwj xeeb, HPMC nce viscosity ntawm slurry kom nws ruaj khov, thiab cov kws ua haujlwm tsim kho tuaj yeem tau txais cov txheej txheem ntau dua thaum thov lossis kos. Tshwj xeeb tshaj yog nyob rau hauv kev pleev xim phab ntsa thiab kho ua haujlwm, cov dej thiab cov nplaum ntawm gypsum tshwj xeeb yog ib qho tseem ceeb. Qhov kev sib txuas ntawm HPMC tuaj yeem txhim kho kev tsim kho kev tsim kho thiab zam cov khoom txav los so thiab zawv zawg.
2. Txhim kho cov dej noo kev tuav ntawm gypsum
Ib qho tseem ceeb ntawm gypsum cov khoom yog nws cov dej noo khaws cia, uas cuam tshuam ncaj qha cuam tshuam nws lub zog ua kom tawv thiab muaj zog. Raws li cov dej tuav cov neeg sawv cev, HPMC tseem kawm tau cov txheej txheem ntawm gyas nyuaj thiab zam qhov kev tsim cov kab nrib pleb vim muaj dej evaporation ntau dhau.
Ntxiv HPMC rau Gypsum cov hmoov nplej qhuav tuaj yeem ua kom cov dej khaws cia, thiab pab txhawb nqa lub sijhawm ntev thaum lub sijhawm kev tsim kho. Cov yam ntxwv no yog qhov tshwj xeeb tshaj yog thaum tsim kev tsim ib thaj chaw loj, uas tuaj yeem ntseeg tau tias Gypsum tau tag nrho thiab tusyees ua ntej tawv tawv.
3. Txhim kho lub zog sib luag ntawm gypsum
Thaum siv, gypsum feem ntau tuaj rau hauv kev sib cuag nrog hauv paus nto, thiab ua kom tau txoj kev sib raug zoo yog tus yuam sij rau cov khoom lag luam gypsum. HPMC tuaj yeem nce cov nplaum thiab kev sib txuas ntawm gypsum thiab cov khoom siv. Lub hydroxypropyl thiab methyl pawg nyob rau hauv nws cov qauv molecular tuaj yeem cuam tshuam nrog cov txheej txheem sib dhos los ntawm hydrogenption nrog hydrogenption, li kev txhim kho cov nplaum ntawm gypsum.
Tshwj xeeb tshaj yog thaum muaj kev cuam tshuam nrog cov substrates nyuaj, xws li vuas, iav, ntxiv rau ntawm Hypsum, thiab lwm yam. Qhov no yog qhov tseem ceeb los txhim kho lub tsev zoo thiab txo cov teeb meem kev tsim kho.
4. Txhim kho qhov tawg tawm ntawm gypsum
Thaum lub sij hawm tawv ntawm gypsum, yog tias cov dej yaj dhau los yog sab nraud ib puag ncig hloov pauv, yuav tshwm sim. HPMC tuaj yeem pab Gypsum tswj hwm txaus noo los ntawm kev txhim kho rheology thiab dej tuav ntawm gypsum slurry, zam cov kab nrib pleb ntawm kev ziab khaub ncaws dhau dhau. Lub luag haujlwm ntawm HPMC nyob rau hauv Gypsum tsis txwv los ncua cov txheej txheem dej evapness ntawm nws cov txheej txheem tawv ntawm gypsum, yog li kev txhim kho cov kev tawg tawm.
Tshwj xeeb tshaj yog thaum pw ntawm thaj chaw loj lossis kho phab ntsa, HPMC tuaj yeem txo cov kab nrib pleb thaum lub sijhawm ua si ntawm gypsum yog tus thiab ruaj khov.
5. Txhim kho cov fluidity thiab tus kheej-ntsuas ntawm gypsum
Hauv qee cov ntawv thov Gypsum uas yuav tsum tau ua tiav qhov chaw ua tiav, hauv qab thiab kev ntsuas tus kheej tshwj xeeb yog qhov tshwj xeeb. HPMC tuaj yeem txhim kho cov dej ntawm gypsum, ua rau nws smoother thiab ntau yam kev hnav khaub ncaws ntxiv thaum lub sijhawm ua ntawv thov. Tsis tas li ntawd, HPMC kuj tseem tuaj yeem txhim kho qhov kev ntsuas tus kheej ntawm gypsum slurry. Txawm tias thaum tsim ib thaj chaw loj, gypsum tuaj yeem tsim lub tiaj thiab du nto, txo cov khoom siv kho thaum lub sijhawm kev tsim kho.
6. Txhim kho kev ua haujlwm ntawm gypsum
Qhov sib ntxiv ntawm HPMC tuaj yeem txhim kho kev ua haujlwm zoo ntawm gypsum. Ua ntej, nws tuaj yeem txo cov haujlwm siv ntawm cov neeg ua haujlwm rau cov neeg ua haujlwm rau qee yam thiab txo cov teeb meem ntawm kev ua haujlwm. Thib ob, HPMC ua kom muaj kev ruaj ntseg ntawm gypsum slurry, zam qhov tsis txaus ntawm kev hloov pauv lossis cov av noo kev hloov kho thiab ua haujlwm zoo ntawm kev tsim kho.
Hauv qee kis tshwj xeeb, xws li muaj qhov kub lossis qhuav ib puag ncig kev ua haujlwm, dej ua haujlwm kom ua tau zoo HPMC yog qhov tseem ceeb tshaj. Nws tuaj yeem ua kom zoo txuas lub sijhawm ua haujlwm ntawm Gypsum thiab zam cov khoom los ntawm ziab thiab ua kom tawv nqaij, yog txo qhov tshwm sim ntawm kev txhim kho.
87. Kev ua haujlwm ib puag ncig thiab kev nyab xeeb
HPMC yog cov khoom siv ntawm lub ntuj-raws li cov khoom siv polymer uas ib puag ncig ua phooj ywg thiab muaj kev nyab xeeb thiab muaj kev xav tau ntawm cov ntaub ntawv hauv tsev ntsuab. Siv hpmc nyob rau hauv Gypsum koob tsis tuaj yeem txhim kho kev tiv thaiv ib puag ncig thiab tsis muaj kev tsis zoo ntawm cov tsev, uas tau raws li cov khoom siv tshiab thiab nyab xeeb.
HPMC yog dav siv nyob rau hauv Gypsum series. Nws cov haujlwm ua cov tuab dua, dej tuav, dispersant thiab zaj duab xis yav tas los txhim kho kev tsim kho kev ua haujlwm, nplaum tsis kam thiab ib puag ncig ntawm gypsum cov khoom lag luam. Nrog rau cov kev thov nce qib siab hauv kev tsim kho cov ntaub ntawv hauv kev tsim kho, daim ntawv thov kev cia siab ntawm HPMC hauv Gypsum Series yuav nthuav dav.
Lub Sijhawm Post: Feb-19-2025