1. Taw qhia HPMC
HydroxyPropyyl methylulose (HPMC) yog ib qho tsis-ionic cellulose ether, uas yog feem ntau ua los ntawm cov xov tooj ntawm ntuj los ntawm kev hloov kho tshuaj lom neeg. HPMC muaj cov dej ua kom zoo, ua yeeb yaj kiab ua yeeb yaj kiab, thickening cov khoom, yog li nws tau siv dav hauv cov khoom lag luam hauv tsev, tshwj xeeb yog cov khoom lag luam casent.
2. Lub luag haujlwm ntawm HPMC hauv cement-raws cug
Thickening nyhuv: HPMC tuaj yeem ua kom muaj kev sib xws thiab viscosity ntawm cug thiab txhim kho kev tsim kho. Los ntawm kev nce cohesion ntawm cug tshuaj khib, nws tiv thaiv kev tshuaj khib ntawm ntws thiab txheej thaum thaum lub sijhawm kev tsim kho.
Cov nyhuv tswj kav dej Tshwj xeeb tshaj yog nyob rau hauv cov kub thiab cov av noo ib puag ncig, nws cov dej khaws cia yog qhov tseem ceeb.
Txhim kho kev tsim kho: HPMC tuaj yeem ua lub tshuaj khib tau muaj zog thiab lub cev muaj zog, pab txhim kho kev tsim kho, thiab txhim kho kev tsim kho kev tsim kho. Nyob rau tib lub sijhawm, nws tuaj yeem txo cov blistering thiab tawg thaum lub sij hawm kev tsim kho thiab xyuas kom meej tias kev ua haujlwm tsim tau zoo.
Anti-Sag: thaum lub tshuab nqus phab ntsa, hpmc tuaj yeem txhim kho kev tawm tsam ntawm cug tshuaj khib nyiab thiab zug sab nraud, ua kev tsim kho kom yooj yim dua.
Shrinkage Kuj: HPMC tuaj yeem txo cov qhuav thiab ntub dej tawm ntawm cov kab cug, thiab ua kom cov nplaim hluav taws xob txheej tom qab kev tsim kho yog du thiab zoo nkauj.
3. Qosage thiab Siv HPMC
Qhov ntau npaum li ntawm HPMC hauv CEMENT-RAWS LAWM CNC feem ntau 0.1% rau 0.5%. Qhov ntau ntau tshuaj yuav tsum tau hloov kho raws li hom thiab kev ua tau zoo ntawm lub cug. Thaum siv HPMC, sib tov nws nrog hmoov qhuav ua ntej, tom qab ntawd ntxiv dej thiab do. HPMC muaj cov solubility zoo thiab tuaj yeem nrawm nrawm hauv dej los ua cov kev daws teeb meem colloidal.
4. Xaiv thiab Cia ntawm HPMC
Xaiv: Thaum xaiv HPMC, tus qauv tsim nyog thiab cov kev qhia tshwj xeeb yuav tsum raug xaiv raws li cov cai tau ua raws li cov tshuaj khib. Cov qauv sib txawv ntawm HPMC muaj qhov sib txawv hauv solubility, viscosity, khaws dej, thiab lwm yam, thiab yuav tsum tau xaiv raws li cov ntaub ntawv thov tiag tiag.
Cia: HPMC yuav tsum tau muab cia rau hauv ib puag ncig qhuav, cua, kom deb ntawm noo noo thiab kub. Thaum khaws cia, saib xyuas yuav tsum tau them rau kev sib khi los tiv thaiv kev sib cuag nrog ya raws hauv huab cua, uas tuaj yeem cuam tshuam nws qhov kev ua tau zoo.
5. Daim ntawv thov piv txwv ntawm HPMC hauv txoj cai cement
Ceramic pobzeb nplaum: HPMC tuaj yeem ua kom muaj zog ua kom muaj zog thiab txhim kho kev tsim kho kev ua haujlwm hauv ceramic cov nplaum nplaum. Nws cov dej zoo khaws cia thiab thickening cov khoom tuaj yeem tiv thaiv cov nplais nplaum ntawm sagging thiab poob thaum lub sijhawm tsim qauv.
Sab nrauv phab ntsa insulation cug: HPMC nyob sab nraud phab ntsa tuaj yeem txhim kho cov kab cug, thiab txhim kho lub qhov hluav taws xob, thiab kev ruaj ntseg ntawm phab ntsa sab nrauv phab ntsa.
Kev siv tshuaj khib tus kheej: HPMC nyob rau hauv kev tshuaj khib tus kheej tuaj yeem txhim kho cov tshuaj txau thiab ua kom muaj txiaj ntsig ntawm cov pa npuas, thiab ua kom cov tiaj nciab thiab paub tseeb ntawm cov av tom qab kev tsim kho.
6. Lub zeem muag ntawm HPMC hauv cement-raws cug
Nrog kev tsim kho tas mus li ntawm kev tsim kho kev tsim kho, daim ntawv thov ntawm Maas-raws li txoj kab cug yog ntau dua, thiab cov kev ua tau zoo kuj tau nce siab dua thiab siab dua. Raws li qhov tseem ceeb uas tseem ceeb, HPMC tuaj yeem txhim kho kev ua tau zoo ntawm cug thiab ua kom tau raws li kev tsim kho niaj hnub. Yav tom ntej, nrog kev nce qib ntawm kev siv thev naus laus zis thiab kev lag luam xav tau, daim ntawv thov cov kev cia siab ntawm HPMC hauv kev ua haujlwm cement.
Daim ntawv thov ntawm HPMC hauv casent-raws cug tau zoo heev txhim kho kev ua haujlwm zoo thiab cov nyhuv kawg ntawm lub tshuaj khib. Los ntawm kev ntxiv tus nqi uas tsim nyog HPMC, kev ua haujlwm, dej tsis kam ntawm cug tshuaj yuav ua tau zoo txhim kho thiab siv taus. Thaum xaiv thiab siv HPMC, tsim nyog sib xws thiab kev tswj hwm tsim nyog thiab kev tshawb fawb tau muab tag nrho cov ntawv thov kom muab kev ua haujlwm tag nrho thiab ua tau raws li kev xav tau tsim kev tsim kho.
Lub Sijhawm Post: Jul-31-2024