HydroxyPropy Cellulose (HPMC) yog cov ntawv thov sib txawv uas pom cov ntawv thov loj hauv ntau lub tsev vim nws cov khoom tshwj xeeb. Lub cellulose ether derivative yog muab tau los ntawm ntuj ntawm lub vaj cellulose thiab yog siv dav hauv cov khoom tsim kho rau nws cov dej cia, ua kom tuab thiab khi.
1. Taw qhia rau hydroxypropyl methyl cellulose (HPMC)
HydroxyPropy cellulose yog cov tsis-ionic cellulose cellulose ether uas tau los ntawm kev kho cov xov tooj cua ntuj nrog cov tshuaj pleev cov tshuaj pleev thiab methyl strloride. Nws yog soluble nyob rau hauv dej thiab ua ib pob tshab, daws tau. Qhov kev sib txuam ntawm HPMC tshwm sim los ntawm nws lub peev xwm los hloov cov khoom rheological, khaws cia, thiab cov nplaum hauv cov khoom siv.
2. Cov ntawv thov nyob rau hauv cug
2.1. Dej ceev
HPMC feem ntau siv nyob rau hauv kev sib nraus ua qauv los txhim kho cov dej khaws cia. Nws qhov Hydrophilic Xwm tso cai rau nws nqus thiab khaws dej, tiv thaiv kev ua kom qhuav ntawm lub tshuaj txau. Cov cuab yeej no kom ntseeg tau tias lub sijhawm ua haujlwm zoo, lub sijhawm teem sijhawm, thiab txhim kho adhesion mus rau substrates.
2.2. Thickening thiab rheology tswj
Qhov kev sib txuas ntawm HPMC nyob rau hauv cug ua hauj lwm immeirable thicking cov khoom, muaj feem cuam tshuam kev coj ua ntawm sib xyaw. Qhov no yog qhov tseem ceeb rau kev yooj yim ntawm daim ntawv thov thiab ua tiav qhov xav tau cov kev khib nyiab nyob rau hauv cug.
2.3. Txhim Kho Adhesion
Kev sib xyaw HPMC nyob rau hauv collch nyob rau hauv collation adhesion rau ntau qhov chaw, koom tes rau tag nrho lub zog thiab ruaj khov ntawm cov khoom siv kev tsim kho. Qhov no yog qhov tseem ceeb tshwj xeeb hauv cov ntawv thov xws li kev muab cov ceramic sib xyaw.
3. Cov ntawv thov hauv cov nplais nplaum thiab grouts
3.1. Txhim Kho Kev Ua Haujlwm
Cov nplaum nplaum pobzeb ntau nyob hauv HPMC txhawm rau txhim kho kev ua haujlwm thiab qhib lub sijhawm. Cov polymer kom ua tau tias cov nplaum tseem nyob hauv lub xeev ua haujlwm tau txuas ntxiv mus rau lub sijhawm ntev, tso cai rau kev ziab ntxov kom tsis muaj kev txhuam kom qhuav.
3.2. Txo cov khoom noj
HPMC pab txhawb rau cov khoom los tiv thaiv sagging ntawm cov nplais nplaum. Qhov no tseem ceeb heev thaum txhim kho vuas rau ntawm qhov chaw ntsug, raws li nws txwv tsis pub cov vuas los ntawm kev zawv zawg ua ntej cov nplaum.
3.3. Tawg tsis kam nyob rau hauv guts
Hauv cov grout formulations, HPMC pab tiv thaiv kom tsis txhob tawg los ntawm muab cov ntsiab lus yoog thiab txo cov shrinkage. Qhov no yog tau txais txiaj ntsig tshwj xeeb nyob hauv ib cheeb tsam uas kub hloov tuaj yeem cuam tshuam rau cov ntaub ntawv hauv tsev.
4. Daim ntawv thov hauv plaster
4.1. Txhim kho cov haujlwm ua haujlwm thiab kev kis tau
HPMC feem ntau ntxiv rau plaster cov qauv rau kev txhim kho kev ua haujlwm thiab kev ua kom muaj zog. Cov polymer pab kom ua tiav cov smoother thiab ntau daim ntawv thov ntawm plaster ntawm cov chaw.
4.2. Tawg
Zoo ib yam li nws lub luag haujlwm hauv Grouts, HPMC ua rau muaj kev cuam tshuam tsis kam rau hauv plaster. Nws ua cov yeeb yaj kiab yooj yim uas haum rau lub ntuj tso rau ntawm cov ntaub ntawv tsim tsev, txo qis cov kab nrib pleb.
5. Cov ntawv thov nyob rau hauv tus kheej-leveling compounds
5.1. Ntws Tswj
Nyob rau hauv tus kheej-qib sib txuas, HPMC yog siv los tswj cov dej ntws thiab ua haujlwm. Cov polymer ua kom muaj kev faib tawm cov kev faib tawm thiab pab kom cov yam xav tau ntawm cov kab sib txuas ntawm daim ntawv thov nto.
5.2. Txhim kho adhesion
HPMC txhim kho cov nplaum ntawm tus kheej-leveling rau ntau substrates rau ntau substrates, muab kev sib raug zoo thiab ruaj khov. Qhov no yog qhov tseem ceeb rau kev ua haujlwm ntev ntawm cov theem qis.
6. Xaus
HydroxyPropyl methyl cellulose plays ib tug pivotal lub luag haujlwm hauv kev txhim kho kev ua haujlwm ntawm ntau cov ntaub ntawv hauv tsev. Nws cov ntawv thov hauv cug tshuaj khib, clile nplaum, plaster, thiab kev ntsuas tus kheej showcase showcase nws cov versatility thiab ua hauj lwm zoo hauv kev tsim kho kev tsim kho. Cov yam ntxwv tshwj xeeb ntawm HPMC, suav nrog cov dej cia, thickening, ua rau muaj cov nplaum, ua rau muaj cov khoom zoo tag nrho, ua haujlwm ruaj khov, thiab ua haujlwm ntawm cov ntaub ntawv hauv tsev. Raws li kev tsim kho kev tsim kho txuas ntxiv mus evolve, HPMC tseem yog cov khoom xyaw tseem ceeb hauv kev tsim cov khoom lag luam tshaj lij thiab cov ntaub ntawv ua haujlwm siab.
Lub Sijhawm Post: Jan-10-2024