Lub luag hauj lwm ntawm HPMC nyob rau hauv qhuav mix mortar

Qhuav mix mortar

Qhuav mix mortar yog hais txog kev sib xyaw ua ntej sib xyaw ntawm cov khoom sib xyaw zoo, cov cement thiab cov khoom ntxiv uas tsuas yog yuav tsum tau ntxiv nrog dej ntawm qhov chaw tsim kho. Cov mortar no yog nrov rau nws qhov yooj yim ntawm kev siv, zoo ib yam, thiab kev ua tau zoo dua qub piv rau cov tsoos hauv qhov chaw sib xyaw mortars.

Hydroxypropylmethylcellulose (HPMC)

HPMC yog ib qho uas tsis yog-ionic cellulose ether muab los ntawm lub ntuj polymer cellulose. Siv dav hauv cov khoom siv hauv tsev, tshuaj, zaub mov thiab lwm yam lag luam. Hauv cov tshuaj khib nyiab qhuav, HPMC yog ib qho tseem ceeb ntxiv uas cuam tshuam rau txhua yam ntawm kev coj cwj pwm thiab kev ua haujlwm.

Lub luag hauj lwm ntawm HPMC nyob rau hauv qhuav mix mortar 

1. Kev tuav dej

HPMC tuaj yeem txhim kho cov dej khaws cia ntawm cov tshuaj khib nyiab qhuav thiab tiv thaiv kom tsis txhob poob dej sai. Qhov no yog qhov tseem ceeb tshwj xeeb tshaj yog thaum tsim kho thiab kho, vim tias kev tuav dej txaus kom muaj dej txaus ntawm cov cement, yog li txhim kho kev txhim kho lub zog thiab kav ntev.

2. Thickening

Raws li cov thickener, HPMC pab txhim kho qhov sib xws thiab kev ua haujlwm ntawm cov tshuaj khib nyiab qhuav. Nws pab tiv thaiv mortar los ntawm sagging thiab zawv zawg thaum lub sij hawm ntsug daim ntaub ntawv xws li plastering los yog pobzeb kho.

3. Txhim kho adhesion

HPMC tuaj yeem txhim kho cov khoom sib txuas ntawm cov khoom sib xyaw qhuav thiab txhawb kev sib raug zoo ntawm cov tshuaj khib thiab ntau yam substrates. Qhov no yog qhov tseem ceeb rau kev ua haujlwm ntev thiab ruaj khov ntawm cov tshuaj khib siv.

4. Teem sijhawm tswj

Los ntawm kev cuam tshuam lub sijhawm teeb tsa ntawm lub mortar, HPMC muab kev tswj xyuas ntau dua ntawm cov txheej txheem tsim kho. Qhov no tseem ceeb tshwj xeeb tshaj yog nyob rau hauv kev tsim kho, raws li cov ntawv thov sib txawv yuav tsum tau teem sijhawm tshwj xeeb.

5. Resistant rau sagging thiab tawg

Ntxiv HPMC pab tiv thaiv kom qhuav sib tov mortar los ntawm sagging thiab cracking. Qhov no yog tshwj xeeb tshaj yog zoo nyob rau hauv ntsug daim ntaub ntawv uas lub mortar yuav tsum tau ua raws li qhov chaw tsis muaj kev sib tsoo los yog tawg thaum lub sij hawm kho.

6. Qhov cuam tshuam rau rheology

HPMC hloov cov khoom rheological ntawm qhuav-sib tov mortar, cuam tshuam nws tus cwj pwm ntws thiab viscosity. Qhov no ua kom cov mortar tuaj yeem siv tau thiab kis tau yooj yim thaum tuav lub thickness thiab sib xws.

Cov txiaj ntsig ntawm kev siv HPMC hauv cov khoom sib xyaw qhuav

1. Kev sib haum xeeb thiab kev sib koom siab

HPMC pab tswj qhov zoo ntawm cov khoom sib xyaw qhuav, ua kom cov khoom sib xws xws li kev ua haujlwm, adhesion thiab dej tuav. Qhov no yog qhov tseem ceeb kom tau txais txiaj ntsig zoo thiab ua tau zoo hauv kev tsim kho.

2. Txuas sijhawm qhib

Lub sij hawm qhib ntawm mortar yog lub sij hawm lub mortar tseem siv tau tom qab sib tov. HPMC ncua lub sijhawm qhib, muab kev hloov pauv thaum lub sijhawm tsim kho, thiab txo cov peev txheej kom qhuav ntxov ntxov.

3. Txhim khu kev ruaj khov

Cov dej tuav thiab adhesion zog imparted los ntawm HPMC pab txhim kho lub durability ntawm qhuav mix mortars. Mortar formulations siv HPMC tsis tshua muaj teeb meem xws li tawg, uas tuaj yeem cuam tshuam qhov kev ncaj ncees mus ntev ntawm cov qauv.

4. Versatility

HPMC yog sib xws nrog ntau hom mortar formulations, ua rau nws muaj ntau yam additives rau ntau yam kev siv siv. Nws tuaj yeem ua ke nrog lwm cov tshuaj ntxiv kom ua tiav cov kev xav tau tshwj xeeb.

Daim ntawv thov ntawm HPMC nyob rau hauv qhuav mix mortar

1. Plastering mortar

Nyob rau hauv plastering mortars, HPMC tiv thaiv sagging thiab txhim kho adhesion rau lub substrate, pab ua kom ib tug du, txawm nto.

2. Cov nplaum nplaum

HPMC feem ntau yog siv rau hauv cov pobzeb nplaum tsim los txhim kho adhesion, dej tuav thiab sag tsis kam, ua kom muaj kev ruaj ntseg ntawm cov pobzeb thiab substrate.

3. Masonry mortar

Nyob rau hauv masonry mortars, HPMC pab txhim kho kev tsim kho kev ua tau zoo thiab durability, uas ua rau kom muaj txiaj ntsig zoo, ua haujlwm ntev ntawm phab ntsa thiab kev tsim kho.

4. Self-leveling mortar

Rau tus kheej-leveling mortar daim ntaub ntawv, HPMC pab tswj tus cwj pwm ntws, tiv thaiv kev sib cais thiab ua kom lub ntsej muag du.

5. Kho mortar

Hauv kev kho mortar formulations, HPMC pab ua kom muaj kev sib raug zoo ntawm cov khoom kho thiab cov substrate uas twb muaj lawm, yog li txhim kho tag nrho cov kev ua tau zoo ntawm cov qauv kho.

nyob rau hauv xaus

Nyob rau hauv cov ntsiab lus, hydroxypropyl methylcellulose (HPMC) plays lub luag hauj lwm ntau yam thiab indispensable nyob rau hauv qhuav-mix mortar formulations. Nws cuam tshuam rau kev tuav dej, adhesion, rheology thiab lwm yam khoom tseem ceeb cuam tshuam rau tag nrho cov kev ua tau zoo thiab qhov zoo ntawm cov tshuaj khib nyiab. Raws li kev tsim kho kev lag luam txuas ntxiv mus, HPMC tseem yog ib qho tseem ceeb ntxiv, ua kom muaj kev txhim kho qib siab, txhim khu kev qha qhuav mix mortar formulations rau ntau yam kev siv.