Hydroxypropyl Methylcellulose (HPMC) yog non-ionic cellulose ether compound siv dav hauv cov khoom siv hauv tsev, khoom noj khoom haus, tshuaj thiab tshuaj txhua hnub.Hauv pob zeb, HPMC, ua ib qho ntxiv, muaj ntau yam haujlwm tshwj xeeb thiab qhov zoo thiab tuaj yeem txhim kho kev ua tau zoo ntawm pob zeb.
Lub luag haujlwm ntawm HPMC hauv pob zeb
1. Txhim kho kev ua haujlwm ntawm pob zeb
Ib qho ntawm lub luag haujlwm tseem ceeb ntawm HPMC yog txhawm rau txhim kho kev ua haujlwm ntawm pob zeb, uas yog, yooj yim ntawm kev khiav lag luam thiab fluidity.HPMC muaj cov nyhuv thickening zoo thiab tuaj yeem ua kom cov viscosity ntawm cov pob zeb slurry, ua kom yooj yim rau kev sib kis thiab zoo li thaum tsim kho.Tsis tas li ntawd, HPMC tuaj yeem txhim kho cov dej tuav ntawm cov pob zeb slurry, tiv thaiv cov dej nrawm nrawm hauv qhov kub thiab txias los yog cua qhuav, thiab tswj cov yas ntawm cov pob zeb.
2. Txhim kho cov dej tuav ntawm pob zeb
HPMC tuaj yeem txhim kho cov dej tuav ntawm pob zeb.Qhov no yog vim hais tias pawg hydroxyl thiab methoxy nyob rau hauv cov qauv molecular ntawm HPMC muaj zog nqus dej muaj peev xwm, uas tuaj yeem nqus tau thiab khaws dej thiab txo cov dej poob.Cov dej tuav cov dej no yog qhov tseem ceeb rau cov txheej txheem hardening ntawm cov pob zeb, tshwj xeeb tshaj yog nyob rau hauv qhov chaw qhuav, tiv thaiv cov kab nrib pleb ntawm cov pob zeb thiab ua kom muaj kev sib zog thiab kev txhim kho lub zog ntawm cov pob zeb.
3. Txhim kho qhov tawg tsis kam ntawm pob zeb
HPMC tuaj yeem txhim kho cov dej khaws cia ntawm cov pob zeb thiab tiv thaiv cov dej los ntawm evaporating sai heev, yog li txo qis cov kab nrib pleb los ntawm dej poob.Tsis tas li ntawd, cov nyhuv thickening ntawm HPMC kuj pab txo qhov kev sib cais thiab los ntshav ntawm cov pob zeb slurry, ntxiv txo qhov tshwm sim ntawm cov kab nrib pleb.Tshwj xeeb tshaj yog nyob rau hauv loj-ntim pob zeb los yog kub-kub ib puag ncig, anti-cracking nyhuv ntawm HPMC yog tshwj xeeb yog tseem ceeb.
4. Txhim kho qhov adhesion ntawm pob zeb
HPMC tuaj yeem txhim kho cov khoom sib txuas ntawm cov pob zeb thiab cov substrates sib txawv.Qhov no yog vim hais tias cov tshuaj colloidal tsim los ntawm HPMC yaj hauv dej tuaj yeem tsim cov yeeb yaj kiab nyias ntawm cov pob zeb txhawm rau txhim kho lub zog sib txuas ntawm cov pob zeb thiab lwm yam khoom siv.Qhov no yog qhov tseem ceeb tshwj xeeb rau kev siv xws li plaster mortars thiab pobzeb adhesives, uas tuaj yeem txhim kho kev tsim kho kom zoo thiab kav ntev.
5. Kho lub sijhawm teeb tsa ntawm pob zeb
HPMC muaj qee yam haujlwm ntawm kev tswj lub sijhawm coagulation.Raws li kev xav tau, los ntawm kev kho cov nqi ntawm HPMC ntxiv, lub sijhawm teem sijhawm ntawm kev ua vaj tse tuaj yeem txuas ntxiv lossis luv luv, uas ua kom yooj yim rau kev tsim kho thiab tswj kev ua tiav.Qhov no yog qhov tseem ceeb tshwj xeeb tshaj yog thaum kev tsim kho yuav tsum tau siv sijhawm ntev lossis nyob rau hauv qhov kub thiab txias.Nws tuaj yeem tiv thaiv pob zeb los ntawm solidifying sai heev thiab xyuas kom muaj kev tsim kho zoo.
6. Txhim kho qhov khov-thaw tsis kam ntawm pob zeb
Cov dej tuav thiab cov nyhuv thickening ntawm HPMC tuaj yeem txhim kho cov qauv sab hauv ntawm pob zeb thiab ua kom nws denser, yog li txhim kho qhov khov-thaw tsis kam ntawm pob zeb.Hauv cov chaw txias lossis cov haujlwm uas yuav tsum tau tiv thaiv lub voj voog khov-thaw, ntxiv HPMC tuaj yeem tiv thaiv kev tawg thiab tawg ntawm cov pob zeb uas tshwm sim los ntawm kev khov-thaw mus thiab txuas ntxiv nws lub neej kev pab cuam.
Kev siv HPMC hauv pob zeb
HPMC yog dav siv hauv pob zeb, tshwj xeeb tshaj yog nyob rau hauv cov nram no:
1. Qhuav mix mortar
Hauv cov tshuaj khib nyiab qhuav, HPMC tuaj yeem txhim kho cov dej tuav thiab ua haujlwm ntawm cov tshuaj khib nyiab, tiv thaiv dej los ntawm evaporating sai heev, thiab txhim kho kev tsim kho thiab kev ua haujlwm zoo.Tsis tas li ntawd, HPMC tseem tuaj yeem txhim kho qhov tawg tsis kam thiab adhesion ntawm mortar thiab nce nws lub neej kev pab cuam.
2. Cov nplaum nplaum
Ntxiv HPMC rau pobzeb nplaum tuaj yeem txhim kho nws cov viscosity thiab kev sib khi quab yuam, kom ntseeg tau tias cov vuas tsis yooj yim rau swb thiab poob tawm thaum lub sijhawm tso.HPMC tuaj yeem txhim kho cov dej tuav thiab tawg ua haujlwm ntawm cov nplais pobzeb nplaum, tiv thaiv cov vuas luaj ceramic los ntawm kev tawg vim dej poob lossis qhuav shrinkage.
3. Plastering mortar
Nyob rau hauv plastering mortar, HPMC tuaj yeem txhim kho qhov fluidity thiab dej tuav ntawm lub mortar, ua kom yooj yim rau kev thov thiab ua kom zoo thaum lub sij hawm tsim kho, txo cov kev tsim kho nyuaj thiab kev siv zog.Nyob rau tib lub sijhawm, HPMC tseem tuaj yeem txhim kho qhov tawg tsis kam thiab kev sib txuas ntawm cov tshuaj khib nyiab kom ntseeg tau tias qhov smoothness thiab firmness ntawm plaster txheej.
4. Self-leveling pem teb
Ntawm cov ntaub ntawv hauv pem teb tus kheej, HPMC tuaj yeem txhim kho nws cov dej ntws thiab dej tuav, xyuas kom meej tias cov ntaub ntawv hauv pem teb tuaj yeem ua tus kheej thaum lub sijhawm tsim kho, thiab txo qis kev tsim kho thiab qhov tsis sib xws.Tsis tas li ntawd, HPMC tseem tuaj yeem txhim kho qhov tawg thiab hnav tsis kam ntawm cov ntaub ntawv hauv pem teb, txhim kho lawv lub neej kev pabcuam thiab kev zoo nkauj.
Daim ntawv thov ntawm hydroxypropyl methylcellulose (HPMC) hauv pob zeb muaj ntau yam zoo thiab tuaj yeem txhim kho kev ua haujlwm, dej tuav, tawg tiv thaiv, adhesion thiab khov-thaw ua haujlwm ntawm pob zeb.Los ntawm kev sib ntxiv thiab siv HPMC, kev tsim kho kom zoo thiab kav ntev ntawm cov pob zeb tuaj yeem txhim kho kom tau raws li ntau yam kev xav tau ntawm engineering.Nyob rau hauv lub neej yav tom ntej, nrog kev nce qib ntawm kev siv thev naus laus zis thiab kev txhawb nqa txuas ntxiv ntawm cov ntawv thov, lub luag haujlwm ntawm HPMC hauv cov pob zeb yuav tseem ceeb dua, ua rau muaj txiaj ntsig kev lag luam thiab kev sib raug zoo.
Post lub sij hawm: Lub Xya hli ntuj-23-2024