Pobzeb Adhesives ua lub luag haujlwm tseem ceeb hauv kev tsim kho kev tsim kho, kom ntseeg tau qhov kev sib raug zoo ntawm cov vuas luaj. HydroxyPropyyl methylulose (HPMC) yog cov khoom tseem ceeb hauv ntau cov nplais niaj hnub nplaum, muab cov khoom nplaum txhim kho thiab ua haujlwm.
1.understanding hydroxypropyl methylcellose (HPMC):
HPMC yog lub cellulose derivative feem ntau siv nyob rau hauv cov ntaub ntawv tsim kho rau nws cov nplaum, thickening, thiab dej khaws cov khoom siv.
Nws yog muab tau los ntawm cov pob zeb ntuj thiab ua tiav rau hauv cov hmoov zoo.
HPMC txhim kho lub zog ntawm cov nplais nplaum thaum txhim kho lawv cov haujlwm ua haujlwm thiab dej khaws cov yam ntxwv.
2.Formulation ntawm HPMC-based pobzeb nplaum:
a. Cov Khoom xyaw Pib:
Portland Maas: muab cov thawj tus neeg sawv cev thawj.
Zoo xuab zeb lossis muab tub lim: txhim kho kev ua haujlwm thiab txo cov shrinkage.
Dej: Yuav tsum muaj rau kev tswj cov dej thiab ua haujlwm.
HydroxyPropyyl methylcellulose (HPMC): Ua raws li tus neeg sawv cev ua tuab thiab ua kom tus neeg sawv cev.
Ntxiv: Yuav suav nrog polymer modifiers, dispersants, thiab anti-sag tus neeg sawv cev rau kev ua haujlwm tshwj xeeb.
b. Kev faib tawm:
Qhov kev faib ua feem ntawm txhua yam kev sib txawv raws li yam xws li hom pobzeb, substrate, thiab ib puag ncig.
Ib qho kev ua tiav ib txwm muaj 20-30% cement, 50-60% xuab zeb, 0.5-2% HPMC, thiab cov dej kom tsim nyog kom ua tiav qhov kev xav tau.
c. Nws cov txheej txheem sib xyaw:
Kev sib xyaw ua ke qhuav xis mas, xuab zeb, thiab HPMC kom huv si kom ntseeg tau tias muaj kev faib tawm cov kev faib tawm.
Maj mam ntxiv dej thaum sib tov kom txog thaum qhov xav tau kev sib xws yog ua tiav.
Sib tov kom txog thaum lub ntsej muag du, muab tshuaj txhuam dawb yog tau, ua kom muaj kev haus dej kom zoo ntawm Caas hais thiab Dispersion ntawm HPMC.
3.Qhov khoom siv HPMC-raws cov pobzeb nplaum:
a. Npaj Kev Npaj Deg:
Xyuas kom meej tias lub substrate yog huv si, lub suab zoo, thiab pub dawb los ntawm hmoov av, roj, thiab paug.
Cov nplaim ntxhib lossis tsis sib xws yuav xav tau kev ntsuas qib lossis kev ua ntej ua ntej daim ntawv thov.
b. Cov Tswv Yim Thov:
Trowel Daim Ntawv Thov: Cov qauv feem ntau cuam tshuam siv cov trowel tsis sib xws los nthuav tawm cov nplaum ua rau lub substrate.
Tom qab-buttering: Thov ib txheej nyias nyias ntawm cov nplaum rau sab nraum qab ntawm cov vuas ua ntej muab lawv mus rau hauv lub vuas zoo nkauj, tshwj xeeb yog cov vuas loj lossis hnyav.
Hnov Tsev Cov Vuas: Haum rau cov vuas luaj los yog cov ntaub ntawv dai kom zoo nkauj, koom nrog cov nplaum hauv cov nplaum me dua li kis nws hla tag nrho substrate.
c. Cov vuas pov tseg:
Nias rau cov vuas khov kho rau hauv lub txaj nplaum, ua kom muaj kev sib cuag puv thiab cov kev pab them nqi tsis zoo.
Siv cov spacers kom tswj cov pob qij txha zoo sib xws.
Kho cov pobzeb sib txawv sai sai ua ntej cov nplaum txheej txheem.
d. Kho thiab grouting:
Cia cov nplaum los kho raws li cov lus qhia ua ntej grouting.
Grout cov vuas siv cov khoom siv grout kom haum, txhaws cov pob qij txha ua kom tiav thiab smoothing nto.
4.Adadavages ntawm HPMC-based pobzeb nplaum:
Txhim Kho Lub Zog: HPMC txhim kho cov nplaum kom ob vuas thiab substrates thiab substrates, txo txoj kev pheej hmoo ntawm cov vuas luaj.
Txhim kho qhov ua haujlwm: muaj HPMC txhim kho kev ua haujlwm thiab qhib lub sijhawm ntawm cov nplaum, tso cai rau cov vuas uas yooj yim dua thiab hloov kho cov vuas.
Dej khaws cia: HPMC pab khaws cov dej noo nyob hauv cov nplaum, txhawb kom cov khoom siv kom qhuav thiab tiv thaiv kom qhuav ntxov.
HPMC-based nplais nplaum muaj cov kev daws teeb meem zoo rau ntau yam Tiling Tiling, muab cov nplaum nplaum, txhim kho kev ua haujlwm zoo, thiab ua kom tiav durability. Los ntawm kev nkag siab cov qauv thiab cov txheej txheem kev thov sau tseg hauv phau ntawv qhia no, cov kws kho mob tsim kev tsim kho tau zoo los ua tiav cov nplais zoo sib xyaw.
Lub Sijhawm Post: Apr-15-2024