HydroxyPropyyl methylcellose (HPMC) yog qhov ntau tshuaj lom neeg sib xyaw ua ke hauv ntau yam lag luam, suav nrog kev tsim kho. Hauv kev ntsws-dawb grouting, HPMC muaj ob peb qhov zoo vim nws cov khoom tshwj xeeb thiab kev ua haujlwm.
Dej khaws cia: Ib qho ntawm thawj qhov zoo ntawm HPMC hauv kev ntsws ua kom huv yog nws lub peev xwm ua kom txaus. HPMC ua cov qauv gel-zoo li cov gel thaum sib xyaw nrog dej, uas pab kom khaws noo noo nyob hauv cov grout sib tov. Qhov dej ua kom ntev ntev ua kom muaj cov txheej txheem hydration zoo li qub, tso cai rau cov grout kom ua tiav nws txoj kev ua tau zoo thiab kev ua tau zoo ntawm lub sijhawm. Raws li qhov tshwm sim, shrinkage cracks yog qhov tsawg, thiab tag nrho cov qauv grouted tau txhim kho.
Txhim kho cov haujlwm ua haujlwm: HPMC ua raws li kev hloov kho rheology, txhim kho lub zog ua haujlwm thiab tsis muaj zog ntawm cov grout sib xyaw. Los ntawm kev kho cov viscosity thiab flow cov khoom ntawm cov grout, hpmc enlles smoother daim ntawv thov thiab zoo dua rau kev kaw chaw, xws li nqaim qhov khoob thiab kab noj hniav. Qhov kev txhim kho ua haujlwm kom haum rau kev sib tham yooj yim thiab ua kom cov kev faib tawm hauv cov grouted, txo qhov kev pheej hmoo ntawm voids lossis tsis tiav.
Txhim kho Adhesion: HPMC muaj cov khoom nplaum zoo tshaj plaws, uas txhawb nqa cov nplaum muaj zog ntawm cov chaw nyob ntawm thaj chaw. Qhov kev sib tw uas muaj zog no pab kom tiv thaiv delamination lossis sib cais ntawm cov txheej gute los ntawm substrate, txawm tias nyob rau hauv kev thauj khoom. Raws li ib tug tshwm sim, kev ncaj ncees thiab cov qauv kev ruaj ntseg ntawm cov rooj sib txoos tau tswj hwm, txo qis ntawm cov kab nrib pleb lossis tsis ua tiav vim yog tsis muaj kev sib raug zoo.
Txo cov shrinkage: shrinkage yog ib qho teeb meem uas ib txwm muaj nyob rau hauv kev nplij siab, ua rau kev tsim cov nras thiab cuam tshuam cov txheej txheem kev ncaj ncees ntawm cov chaw kho. HPMC ua raws li qhov shrinkage reducer los ntawm mitigating lub ziab shrinkage ntawm cov grout manrix. Nws lub xub ntiag pab tswj cov evaporation ntawm dej los ntawm cov grout sib tov, ua kom tsawg kawg volumetric shrinkage thiab cuam tshuam kev tawg. Cov cuab yeej no yog tau txais txiaj ntsig tshwj xeeb hauv cov ntawv thov uas muaj kev ruaj khov ruaj khov thiab kev ua tau zoo heev yog qhov tseem ceeb, xws li hauv cov nplais ceramic lossis pob zeb cladding lossis pob zeb cladding lossis pob zeb cladding lossis pob zeb cladding.
Txhim kho cov durability: los ntawm kev ruaj ntseg dej tsis kam thiab seem ruaj khov rau cov grout, hpmc txhim kho kom muaj kev siv zog tag nrho thiab ntev ntawm cov chaw kho. Tus tiv thaiv kev tiv thaiv tsim los ntawm HPMC tiv thaiv kev nkag mus thiab nti, lossis tshuaj lom neeg, lossis kev ntseeg siab, lossis kev ua kom zoo nkauj ntawm cov kev sib dhos grouted. Tsis tas li ntawd, cov neeg txo qis ua rau shrinkage-inducting mus ntev ntev kev pabcuam lub neej ntawm cov grout, ua kom muaj kev xav tau ntawm kev kho nqi lossis txij nkawm.
Kev sib xyaw nrog cov quav ntxiv: HPMC cov khoom pov thawj zoo nrog ntau yam ntawm cov khoom xyaw ntxiv, xws li cov pob zeb hauv cov pob zeb, cov tshuab yas, thiab cov neeg sawv cev dav hlau. Qhov kev sib xyaw no tso cai rau kev tsim cov grout kev sib xyaw ua ke, xws li txhim kho lub zog, lossis khov-thau tawm, nyob ntawm qhov tshwj xeeb ntawm daim ntawv thov. Cov versatility ntawm HPMC enables cov kws ua tiav los ua kom zoo tshaj plaws ntawm kev ua haujlwm ntawm shrink-dawb grouting tshuab thaum tswj kev ua kom haum thiab ntseeg tau.
Ib puag ncig kev ruaj khov: HPMC yog ib qho kev kawm ntxiv thiab ib puag ncig phooj ywg ntxiv, ua rau nws xaiv qhov kev xaiv tsim kev tsim kho kom zoo. Tsis zoo li cov grout grout ntxiv, uas yuav muab cov tshuaj lom neeg tsis zoo los ntawm cov khoom siv tsis zoo thiab ua rau muaj kev pheej hmoo tsawg rau tib neeg kev noj qab haus huv thiab ib puag ncig. Nws lub Eco-phooj ywg Xwm dlhos nrog kev cog qoob loo rau cov ntaub ntawv ntsuab tsim rau cov haujlwm ua kom txhua yam.
HydroxyPropyyl methylcellose (HPMC) muaj ntau qhov zoo hauv cov dej khov, txhim kho cov dej khov kho, zoo dua nrog cov quav, thiab ib puag ncig kev ua kom zoo nkauj, thiab ib puag ncig kev ruaj ntseg. Los ntawm txoj kev siv dag zog cov khoom no, HPMC pab kom ua kom tiav qhov kev ua tau zoo, thiav, thiab muaj kev txhim khu kev daws teeb meem rau ntau yam kev kho.
Lub Sijhawm Post: Feb-18-2025