HPMC (HydroxyPropyyl methylulose) yog cov khoom siv polymercellulose) yog cov khoom siv polymer dav siv hauv kev tsim kho thiab muaj cov tshuaj thiab tshuaj lom neeg. HPMC feem ntau siv los ua kev ntxiv nyob rau hauv kev tsim kho kev tsim kho los txhim kho cov khoom siv hauv tsev, tshwj xeeb yog nyob hauv Mortars, patteam hmoov, cov khoom siv thiab cov khoom siv.
1. Daim ntawv thov nyob rau hauv cug
Nyob rau hauv kev tsim cov khoom lag luam, HPMC tau siv dav siv los txhim kho kev ua haujlwm. Nws cov dej khaws cia, thickening thiab anti-sag lub luag haujlwm ua lub luag haujlwm tseem ceeb hauv kev npaj cov khoom sib xyaw, Masonry Mortars thiab lwm thaj teb.
Dej khaws cia: HPMC tuaj yeem txhim kho kev ua kom dej cug thiab ua kom muaj zog ntawm cov xis thiab ua kom muaj zog ntawm cov tshuaj khib nyiab thiab tawg ntawm cug. Cov yam ntxwv no tshwj xeeb yog qhov tshwj xeeb hauv ib puag ncig kub kom tsis txhob tawg thiab lub zog poob los ntawm kev muab tshuaj cug ntau dhau.
Thickening: HPMC tuaj yeem hloov kho kom zoo nkauj thiab viscosity ntawm cug, ua cov tshuaj khib smoother thaum thov thiab tau yooj yim los tsim. Nyob rau tib lub sijhawm, nws kuj tseem tuaj yeem txhim kho cov wettability thiab adsuring ntawm cov khoom siv hauv paus, kom meej tias lub tshuaj khib nyiab tau txuas rau phab ntsa lossis lwm yam khoom siv hauv paus.
Anti-Sag: HPMC tuaj yeem tiv thaiv lub tshuaj khib los ntawm sagging lossis sagging thaum tsim ntawm qhov chaw ntsug, tshwj xeeb tshaj yog thaum tsim cov txheej tuab. Nws cov viscosity kev hloov tau muaj nuj nqi tuaj yeem ua kom lub tshuaj khib kom zoo thaum lub ntsej muag tsim kho thiab tsis yooj yim kom poob tawm.
2. Daim ntawv thov hauv ceramic pobzeb nplaum
Ntawm cov pobzeb pobzeb nplaum, HPMC yog siv los txhim kho txoj kev ua tiav thiab kev tsim kho cov tub rog sib cog lus ceramic. Hauv kev kho kom zoo nkauj niaj hnub, cov vuas luaj ceramic tau siv dav rau phab ntsa thiab chaw kho kom zoo nkauj, yog li qhov zoo ntawm cov nplaum yog qhov tseem ceeb.
Txhim kho lub zog Bonding: HPMC ua kom muaj kev cuam tshuam ntau dua thiab ua kom muaj kev cuam tshuam nrog cov khoom sib xyaw ua ke ntawm cov nplaum thiab cov vuas luaj ceramic thiab cov vuas luaj ceramic. Qhov no tsis yog txuas rau lub neej pabcuam ntawm cov vuas, tab sis kuj tiv thaiv lawv los ntawm kev poob vim yog tsis muaj admesion txaus.
Kev qhib sijhawm qhib cov sij hawm ntxiv: thaum cov tub rog sib txig sib luag, cov neeg ua haujlwm tsim kev tsim kho feem ntau xav tau sijhawm txaus los kho lub zog ntawm cov vuas luaj ceramic. Qhov kev sib txuas ntawm HPMC tuaj yeem txuas ntxiv lub sijhawm qhib, muab cov chaw ua haujlwm txuas ntxiv los ua haujlwm thiab kho, li kev txhim kho kev tsim kho kev tsim kho kev tsim kho.
Txwv tsis pub swb: thaum tso cov vuas luaj ceraming rau ntawm lub ntsej muag, HPMC tuaj yeem tiv thaiv cov vuas luaj ceramic los ntawm kev tsim kho thaum lub sijhawm kev tsim kho. Qhov no tsis tsuas yog txo cov kev nyuaj ntawm kev tsim kho, tab sis kuj tseem txhim kho qhov zoo ntawm kev tsim kho.
3. Daim ntawv thov nyob rau hauv putty hmoov
Lub luag haujlwm ntawm HPMC hauv cov hmoov Putty tseem ceeb heev, feem ntau yog nyob rau hauv kev txhim kho cov haujlwm ua haujlwm, dej ceev ceev ntawm putty.
Txhim kho kev ua haujlwm: Ntxiv HPMC kom ua tau cov hmoov ua kom muaj peev xwm ua tau daim ntawv thov ntawm putty putty forg thiab zam kev khawb, qhov tseeb thiab qhov xwm txheej kom qhuav thiab ua kom tiav thiab lwm yam khoom siv. Nyob rau tib lub sijhawm, lub fluidity thiab ductility ntawm cov zaub mov tseem tuaj yeem txhim kho, ua kev tsim kho yooj yim dua.
Kev ua kom cov dej ua kom tiav: Cov dej khaws cia hauv HPMC tuaj yeem ua kom paub meej tias lub cev muaj zog ntawm phab ntsa, zam kev tawm tsam lossis cov hmoov tawg vim yog dej nrawm. Tshwj xeeb tshaj yog nyob rau hauv qhuav lossis siab-qhov chaw ib puag ncig, HPMC tuaj yeem ncua sij hawm qeeb qeeb dej evaporation, kom tau txais txiaj ntsig zoo ntawm putty rau subtty rau subtty.
Txhim kho kev tawg: Thaum lub sijhawm ua kom qhuav, lub putty yuav tawg vim tsis muaj dej tsis xwm yeem. HPMC, los ntawm nws lub peev xwm kev ua kom muaj peev xwm ua kom muaj zog, tso cai rau lub putty kom qhuav ntau tusyees, yog li txo kev pheej hmoo ntawm kev tawg.
4. Daim ntawv thov nyob rau hauv txheej
HPMC kuj yog lub luag haujlwm hauv thickening, dej tuav thiab ruaj khov hauv dej ci ntsa iab.
Thickening cov nyhuv: nyob rau hauv cov txheej txheej, HPMC feem ntau yog siv los kho cov viscosity ntawm kev txhuam hniav lossis txau cov txheej txheem, thiab muaj kev sib txig zoo thiab ua haujlwm tau zoo. Nyob rau tib lub sijhawm, nws tuaj yeem tiv thaiv pleev xim los ntawm sagging thiab xyuas kom cov duab tha xim tha xim.
Dej khaws cia: HPMC tuaj yeem tiv thaiv cov txheej txheej los ntawm kev hloov zuj zus dhau thaum kev tsim kho, uas cuam tshuam rau cov khoom tsim tau zoo. Tshwj xeeb tshaj yog nyob rau hauv ib puag ncig nrog kev kub siab lossis tsis muaj cua tsis muaj zog ntawm HPMC tuaj yeem txhim kho cov kev tsim kho ntawm cov txheej txheem.
Cov nyhuv ruaj khov: HPMC kuj tseem tuaj yeem txhim kho kev cia khoom ruaj khov ntawm lub sijhawm ntev, thiab kev tswj hwm cov kev sib txawv thiab kev ruaj khov ntawm cov txheej txheem.
5. Daim ntawv thov nyob rau hauv MAAs khoom
HPMC tseem dav siv nyob rau hauv prefle cov khoom noj khoom haus thiab tus kheej-theem pem teb cov ntaub ntawv. Nws tuaj yeem txhim kho qhov tawg tsis kam, lub zog compressive sab saum toj thiab nto qab ntawm cov khoom noj.
Txhim kho kev tawg tawm: cov dej ua kom ceev faj ntawm HPMC kom paub qab hau thaum lub sij hawm ua kom tawv nqaij tawv thaum lub sijhawm ua kom zoo thiab ruaj khov ntawm cov khoom.
Txhim kho qhov saum toj zoo: HPMC ua rau saum toj cov khoom lag luam zoo nkauj thiab zom zaws cov tsos zoo ntawm cov khoom tiav.
Txhim kho kev ua haujlwm zoo: hauv cov khoom siv hauv tsev, cov nyhuv tuab ntawm HPMC tuaj yeem txhim kho kom muaj cov khoom siv HPMC tuaj yeem txhim kho ntau yam thiab du, thiab tsis txhob sib haum xeeb thiab tawg.
6. Lwm cov kev siv
Ntxiv rau cov ntawv thov cov ntawv sau saum toj no, HPMC tseem ua lub luag haujlwm tseem ceeb hauv cov khoom siv dej tsis zoo, cov ntaub ntawv rwb thaiv tsev, cov chaw ua haujlwm. Ntawm cov khoom siv dej tsis huv, nws cov dej khaws cia thiab cov khoom siv thickenies tuaj yeem txhim kho kev tsim kho kev ua haujlwm thiab cov nyhuv dej paug ntawm cov khoom; Ntawm cov khoom siv thermal rwb thaiv tsev, HPMC pab txhim kho lub zog sib luag thiab ruaj khov ntawm cov khoom.
Txoj kev thov thoob plaws HPMC hauv kev tsim kho yog vim nws lub cev thiab tshuaj lom neeg zoo. Raws li ib qho tseem ceeb tsim Additive, HPMC tsis tuaj yeem txhim kho cov dej ua kom tau, tab sis kuj txhim kho kev tsim kho kev tsim kho thiab cov khoom tiav zoo. Hauv kev tsim kho niaj hnub, txawm tias nws cug, putty hmoov, kev txhawb nqa cov khoom siv hluav taws xob, HPMC ua si ntawm cov ntaub ntawv hauv tsev thiab txhim kho kev tsim kho kev ua haujlwm.
Lub Sijhawm Post: Sep-13-2024