HPMC los yog Hydroxypropyl Methylcellulose yog ib qho uas tsis yog-ionic cellulose ether dav siv hauv kev tsim kho kev lag luam.Nws yog tau los ntawm ntuj polymer cellulose thiab tshuaj hloov kho los tsim cellulose ether.HPMC yog ib qho tseem ceeb ntawm cov khoom sib tov qhuav, muab cov khoom sib xyaw ua haujlwm zoo thiab ua haujlwm ntev.Hauv phau ntawv qhia no, peb yuav tham txog kev siv HPMC hauv cov tshuaj khib nyiab qhuav thiab yuav ua li cas nws tuaj yeem txhim kho kev ua haujlwm ntawm cov tshuaj khib nyiab no.
Daim ntawv thov ntawm HPMC nyob rau hauv qhuav mix mortar:
1. Muaj peev xwm tuav dej tau zoo: HPMC muaj peev xwm tuav tau dej zoo, uas yog qhov tseem ceeb heev rau cov khoom sib xyaw qhuav.Thaum tov nrog qhuav mix mortar, nws absorbs noo noo thiab maj mam tso nws raws li qhov sib tov teev.Qhov kev tso dej maj mam ua kom ntseeg tau tias cov mortar tau txais cov dej noo txaus los teeb tsa thiab tawv, txo qhov kev pheej hmoo ntawm kev tawg thiab shrinkage.
2. Txhim kho kev ua haujlwm: HPMC txhim kho kev ua haujlwm ntawm cov khoom sib xyaw qhuav los ntawm kev muab lubrication zoo.Nws kuj tseem txhim kho qhov adhesion ntawm mortar rau lub substrate.Qhov kev txhim kho kev ua haujlwm no ua rau nws yooj yim dua los siv cov tshuaj khib kom sib npaug ntawm cov substrate thiab txo qhov kev pheej hmoo ntawm kev sib xyaw tsis sib haum.
3. Txo cov sagging: Thaum siv rau ntawm qhov chaw ntsug, cov tshuaj khib nyiab qhuav feem ntau tawg los yog sag, ua rau tsis sib xws.HPMC txo cov sag ntawm cov mortar los ntawm kev ua kom sib xws thiab viscosity ntawm qhov sib tov, ua kom ruaj khov dua.
4. Txhim kho adhesion: HPMC txhim kho cov khoom adhesion ntawm cov tshuaj khib nyiab qhuav thiab pab tiv thaiv kev sib cais thiab los ntshav ntawm cov sib tov.Qhov sib ntxiv ntawm cov tshuaj khib kuj ua kom ntseeg tau tias nws ua haujlwm zoo rau cov substrate, txo qhov kev pheej hmoo ntawm kev sib tsoo thiab tawg.
5. Txhim kho qhov yooj yim: HPMC txhim kho qhov yooj yim ntawm cov khoom sib xyaw qhuav, ua rau nws tiv taus ntau dua rau kev shrinkage, tawg, thiab huab cua.Qhov kev ua kom yooj yim no ua rau cov tshuaj khib nyiab ntau dua thiab siv tau ntev, txawm tias nyob rau hauv ib puag ncig hnyav.
HPMC yog ib qho tseem ceeb ntawm cov khoom siv khib nyiab qhuav thiab ua lub luag haujlwm tseem ceeb hauv nws qhov kev ua tau zoo.Nws cov khoom tshwj xeeb, xws li dej tuav, txhim kho kev ua haujlwm, txo qis qis, txhim kho kev sib koom ua ke thiab hloov tau yooj yim, ua rau nws muaj txiaj ntsig zoo rau cov khoom sib xyaw qhuav.HPMC tsis tsuas yog txhim kho kev ua tau zoo ntawm cov tshuaj khib nyiab qhuav, tab sis kuj txhim kho nws cov kav ntev, ua rau nws siv nyiaj ntau dua.Nrog rau kev tshawb fawb thiab kev txhim kho txuas ntxiv, HPMC tau dhau los ua qhov kev daws teeb meem ntawm kev xaiv cov khib nyiab qhuav hauv kev tsim kho.Kuv vam tias phau ntawv qhia no yuav pab koj nkag siab txog kev siv HPMC hauv cov tshuaj khib nyiab qhuav.
Post lub sij hawm: Sep-19-2023