Kev siv HPMC thickener rau kev ua kom zoo dua ntawm cov khoom lag luam yog dab tsi?

1. Txhim kho cov khoom viscosity thiab fluidity

HPMC thickener kho qhov viscosity ntawm cov tshuaj kom ua tiav qhov sib xws thiab fluidity zoo tagnrho. Cov yam ntxwv no tseem ceeb heev rau cov ntaub ntawv tsim kho. Piv txwv li, ntxiv HPMC rau hauv cement mortar tuaj yeem ua rau cov khoom viscosity ntau dua, ua rau nws du thiab yooj yim dua rau kev siv thaum lub sijhawm ua haujlwm. Tsis tas li ntawd, qhov viscosity ntawm HPMC tuaj yeem ruaj khov ntawm ntau qhov kub sib txawv, zam qhov tsis ruaj khov ntawm cov khoom vim qhov kub hloov pauv, yog li txhim kho kev siv thiab kev ruaj khov ntawm cov khoom.

2. Txhim kho cov thixotropy thiab cov khoom tiv thaiv kev sagging ntawm cov khoom

HPMC thickener muaj thixotropy zoo, uas txhais tau tias nws tuaj yeem ua nyias dua nyob rau hauv lub zog shear, tab sis rov qab kho nws cov viscosity qub tom qab lub zog nres. Cov yam ntxwv no ua rau HPMC tshwj xeeb tshaj yog tsim rau kev tsim cov txheej thiab xim, thiab tuaj yeem tiv thaiv cov teeb meem sagging ntawm cov khoom. Piv txwv li, thaum lub sijhawm pleev xim, HPMC tuaj yeem ua kom cov xim ntawm qhov viscosity qis thaum txhuam txav, ua rau nws yooj yim txhuam sib npaug, thiab rov qab kho cov viscosity tom qab nres kev ua haujlwm, zoo tiv thaiv kev sagging thiab sag, yog li txhim kho kev tsim kho zoo thiab kev zoo nkauj.

3. Txhim kho kev tiv thaiv dej thiab cov khoom ua yeeb yaj kiab

HPMC thickener muaj cov solubility zoo hauv dej ib puag ncig, tab sis nws muaj cov zaj duab xis zoo heev thiab tiv taus dej. Piv txwv li, ntxiv HPMC rau cov nplaum pobzeb lossis cov nplaum cement tuaj yeem tsim cov zaj duab xis tom qab cov khoom kho. Cov zaj duab xis no tsis yog tsuas yog pab txhim kho qhov tsis kam dej ntawm cov khoom siv, tab sis kuj ua rau lub zog sib txuas thiab tiv taus tawg. Qhov no tseem ceeb heev rau cov ntaub ntawv tsim kho, tshwj xeeb tshaj yog cov khoom xws li cov tshuaj pleev dej thiab cov neeg sawv cev caulking, uas tuaj yeem ua kom lub neej ua haujlwm ntawm cov tsev ntev dua.

4. Txhim kho cov dej khaws cia ntawm cov khoom

Cov khoom siv khaws dej ntawm HPMC ua rau nws tshwj xeeb heev rau ntau daim ntawv thov. Piv txwv li, hauv cov cement mortar, HPMC tuaj yeem khaws dej tau zoo thiab tiv thaiv nws kom tsis txhob evaporate sai dhau. Cov khoom no muaj txiaj ntsig zoo rau hauv qhov chaw kub lossis qhuav, pab cov cement thiab lwm yam khoom siv hauv tsev kom noo thaum lub sijhawm kho thiab tiv thaiv kev tawg los ntawm kev qhuav sai dhau. Cov khoom siv khaws dej ntawm HPMC thickeners kuj tseem siv dav hauv cov khoom noj thiab cov tshuaj pleev ib ce, xws li lub ntsej muag lub ntsej muag, cov tshuaj pleev ib ce thiab lwm yam khoom kom txhim kho lawv cov teebmeem noo noo.

5. Txhim kho cov khoom lo rau

HPMCtuaj yeem txhim kho lub zog sib txuas ntawm cov khoom, tshwj xeeb tshaj yog hauv kev siv cov nplaum hauv tsev thiab cov nplaum pobzeb. Tom qab ntxiv HPMC rau cov cement mortar lossis cov nplaum pobzeb, cov khoom sib txuas ntawm cov khoom tau zoo dua, thiab lawv tuaj yeem lo rau lub substrate kom ruaj khov dua. Nws cov nyhuv thickening pab kom sau cov qhov sib txawv zoo dua, ntxiv txhim kho cov nyhuv sib txuas thiab kev ruaj khov ntawm cov khoom. Qhov kev sib txuas no yog qhov tseem ceeb heev hauv kev tsim kho, uas tsis tsuas yog tuaj yeem ua kom muaj kev sib txuas ze ntawm cov ntaub ntawv tsim kho, tab sis kuj pab txuas lub neej thiab kev ua haujlwm ruaj khov ntawm cov ntaub ntawv tsim kho.

6. Txhim kho qhov ruaj khov ntawm cov khoom

HPMC muaj kev ruaj khov tshuaj zoo thiab tsis yooj yim cuam tshuam los ntawm kev hloov pauv pH thiab kev hloov pauv kub. Cov yam ntxwv no ua rau HPMC haum rau ntau yam kev tsim thiab tuaj yeem ua lub luag haujlwm ruaj khov hauv ntau qhov chaw tshuaj lom neeg. Piv txwv li, hauv tshuaj thiab tshuaj pleev ib ce, kev ruaj khov tshuaj ntawmHPMCua kom cov khoom tsis yooj yim lwj thiab puas tsuaj thaum lub sijhawm khaws cia ntev, yog li ntawd tswj tau qhov ruaj khov thiab ua haujlwm tau zoo ntawm cov mis.