Cov txiaj ntsig ntawm MHEC hauv kev siv cov nplaum pobzeb thiab hmoov putty

Hydroxypropyl methylcellulose ether (MHEC), ib qho cellulose ether uas siv ntau hauv cov txheej txheem mortar qhuav, ua lub luag haujlwm tseem ceeb hauv cov nplaum pobzeb thiab cov hmoov putty, muab cov tuab, khaws dej, thiab txhim kho kev ua haujlwm. Nws yog ib qho khoom ntxiv tseem ceeb uas cuam tshuam rau kev ruaj khov ntawm cov khoom siv thiab kev tsim kho. Thaum cov ntaub ntawv kho kom zoo nkauj tsim kho mus rau qhov zoo, lub teeb yuag, thiab kev coj ua zoo rau ib puag ncig, qhov zoo ntawm MHEC tau dhau los ua qhov tseem ceeb, ua rau nws tsis tuaj yeem hloov pauv tau hauv ob qho tib si nplaum pobzeb thiab cov txheej txheem hmoov putty.

1. Cov txiaj ntsig ntawm MHEC hauv kev siv cov nplaum rau pobzeb

1.1. Kev Txhim Kho Qhov Kev Khaws Dej Zoo Dua, Tiv Thaiv Kev Qhuav Dej Thaum Ntxov
Cov nplaum rau pob zeb yuav tsum khaws cov dej noo txaus tom qab siv kom ntseeg tau tias cov cement noo tau zoo. MHEC muaj peev xwm khaws cov dej zoo heev, kaw cov dej noo kom ruaj khov thiab tiv thaiv kev nqus dej sai los ntawm cov khoom siv thiab ib puag ncig, yog li:

Txhim kho lub zog sib txuas ntawm cov nplais nplaum;

Txo qhov kev pheej hmoo ntawm cov pob hollow thiab detachment;

Txhim kho kev ua haujlwm ntub dej, hloov kho rau qhov xav tau kev tsim kho ntawm cov vuas loj.

Qhov MHEC khaws dej tau zoo yog qhov tsim nyog rau cov khoom siv uas nqus tau dej zoo, huab cua qhuav, thiab kev tsim kho thaum lub caij ntuj sov.

1.2. Kev Txhim Kho Daim Ntawv Thov thiab Kev Ua Haujlwm Scraping
MHEC muaj peev xwm tswj tau qhov rheological zoo heev, ua rau cov nplaum pobzeb muaj cov yam ntxwv hauv qab no:
Daim ntawv thov du dua;
Kev tswj cov tuab sib xws;
Cov yam ntxwv tsis yog hlua thiab tsis lo.
Rau cov neeg ua haujlwm, nws yooj yim dua los tsim cov serrations sib xws, txhim kho kev ua haujlwm zoo.

1.3. Cov Khoom Zoo Tshaj Plaws Tiv Thaiv Kev Poob
MHEC tswj tau qhov thixotropy ntawm cov nplaum pobzeb, ua rau nws cov kua nplaum yooj yim dua thaum siv zog shear thiab rov qab ua kom nws ruaj khov sai sai tom qab siv. Qhov yam ntxwv no ua rau cov nplaum pobzeb pib ruaj khov dua, yog li ntawd:
Tiv thaiv cov vuas vov sagging;
Txhim kho kev ruaj khov ntawm kev tso ntsug;
Txo kev ua haujlwm dua.
Qhov sib txawv ntawm cov vuas loj dua thiab hnyav dua ua rau MHEC qhov zoo tiv thaiv kev plam tseem ceeb zuj zus.

1.4. Lub Sijhawm Qhib Ntev Dua thiab Kev Ua Siab Ntev Zoo Dua
Los ntawm kev khaws dej thiab kev tswj hwm rheological, MHEC ua rau qeeb qeeb ntawm qhov dej poob ntawm qhov chaw nplaum pobzeb, ua rau cov neeg teeb tsa muaj sijhawm ntau dua rau kev ua haujlwm pobzeb, tshwj xeeb tshaj yog haum rau cov ntawv thov loj, txhim kho kev ua haujlwm ntawm kev tsim kho thiab qhov zoo ntawm cov khoom tiav.

2. Cov txiaj ntsig ntawm MHEC hauv Putty Hmoov

2.1. Txhim kho kev khaws dej, xyuas kom meej tias cov zaj duab xis putty sib xws
Cov txheej putty nyias nyias yuav muaj teeb meem xws li ntsws, tawg, thiab hmoov yog tias tsis khaws dej zoo. MHEC muaj peev xwm khaws dej tau zoo tuaj yeem:
Tiv thaiv kom tsis txhob muaj dej ntws los ntawm cov putty ua ntej lub sijhawm;
Xyuas kom meej tias nws qhuav thiab kho kom zoo;
Tsis txhob ua npuas, hmoov av, thiab tawg.
Qhov tseem ceeb ntawm MHEC yog qhov tshwj xeeb tshaj yog thaum siv cov putty rau phab ntsa sab nraud lossis hauv qhov chaw kub siab.

2.2. Kev Ua Haujlwm Zoo Dua thiab Kev Siv Tau Zoo
MHEC ua rau lubricity ntawm cov putty zoo dua, ua rau kev siv yooj yim dua:
Kev siv yooj yim dua thiab tsis tas siv zog ntau;
Ib qho du thiab zoo dua;
Tsawg dua qhov yuav khawb thiab cov khoom seem.
Qhov no pab ncaj qha rau kev txhim kho phab ntsa du thiab kev nplaum zoo dua ntawm cov xim tom qab.

2.3. Cov Khoom Rheological Zoo Dua ntawm Putty
Los ntawm kev kho kom tuab thiab thixotropic rau lub kaw lus, MHEC muab cov hmoov putty cov yam ntxwv hauv qab no:
Kev sib xws siab thaum so, tiv thaiv kev sagging;
Txhim kho kev ntws dej hauv qab shear, ua rau nws yooj yim rau kev thov;
Muaj peev xwm hloov kho tau zoo rau ntau yam kev siv ceev thiab cov txheej txheem.
Yog li ntawd, ob tus neeg ua haujlwm tshiab thiab cov neeg ua haujlwm paub dhau los tuaj yeem ua tiav qhov kev paub zoo dua ntawm daim ntawv thov.

2.4. Kev nplaum zoo dua thiab lub zog ruaj khov ntawm Putty
Lub peev xwm khaws dej thiab kev tawg ntawm MHEC ua rau muaj kev noo tag nrho ntawm cov cement, cov khoom siv hloov cement, thiab lwm yam khoom, txhim kho lub zog sib txuas ntawm cov putty thiab cov substrate, txo cov teeb meem zoo xws li kev tawg thiab kev tawg, thiab tib lub sijhawm ua rau cov zaj duab xis putty ntom dua thiab ruaj khov dua.

3. Cov Zoo Sib Xws ntawm MHEC hauv Ob Lub Txheej Txheem

Txawm yog cov nplaum rau pobzeb lossis cov hmoov putty, cov txiaj ntsig zoo ntawm MHEC tau pom tseeb hauv cov hauv qab no:
Nws ua ke cov thickening thiab thixotropic teebmeem, txhim kho kev ruaj ntseg ntawm lub cev
Nws txhim kho kev ua haujlwm thiab ua kom muaj txiaj ntsig zoo dua
Nws ua rau kom muaj kev sib txuas ntawm cov khoom siv thiab cov substrate
Nws ua kom zoo dua qhov kev khaws cia dej, ua kom muaj zog dua
Nws txhim kho qhov zoo thiab qhov ruaj khov ntawm qhov chaw kawg

Ua ib qho kev ua tau zoo cellulose ether,MHECUa lub luag haujlwm tseem ceeb hauv cov nplaum pobzeb thiab cov hmoov putty. Los ntawm nws cov dej zoo heev, kev tswj hwm rheological, thickening, thiab kev txhim kho kev ua haujlwm, MHEC tuaj yeem txhim kho kev ua haujlwm, kev nplaum, thiab cov khoom tiav zoo ntawm cov ntaub ntawv, ua rau nws yog ib qho ntawm cov khoom siv tseem ceeb rau kev txhim kho kev ua tau zoo thiab kev ruaj khov hauv cov txheej txheem mortar qhuav niaj hnub. Rau cov chaw tsim khoom, kev xaiv cov MHEC ntau yam nrog viscosity tsim nyog, qib ntawm kev hloov pauv, thiab qhov kub ntawm gel tuaj yeem txhim kho kev sib tw ntawm cov khoom thiab lub koob npe nrov hauv kev ua lag luam.