Cellulose HPMC, tseem hu ua hydroxypropyl methylcellulose, yog ib qho khoom siv txuas ntxiv dua tshiab thiab ib puag ncig tus phooj ywg tau txais los ntawm cellulose los ntawm ntoo pulp lossis paj rwb fiber. Nws yog nonnionic polymer nrog zoo heev khaws dej, thickening, thiab film-forming zog. Nws yog dav siv nyob rau hauv ntau yam lag luam xws li kev tsim kho, tshuaj, khoom noj khoom haus, tshuaj pleev ib ce, thiab textiles.
Hauv kev tsim kho kev lag luam, HPMC feem ntau yog siv los ua tus hloov kho rheology thiab cov dej khaws cia hauv cov khoom siv cement xws li mortars, grouts, pobzeb adhesives thiab self-leveling compounds. Nws ua lub luag haujlwm tseem ceeb hauv kev txhim kho cov txheej txheem ua haujlwm, ua haujlwm ntev thiab ua haujlwm ntawm cov ntaub ntawv no, ua kom cov txiaj ntsig zoo sib xws thiab kwv yees tau.
Ib qho txiaj ntsig tseem ceeb tshaj plaws ntawm cov khoom lag luam zoo HPMC yog nws lub peev xwm ua kom sib npaug thiab ua haujlwm zoo hauv cov cement mortar thiab gypsum matrix khoom. Qhov no yog vim nws cov qauv tshuaj tshwj xeeb, uas ua rau nws sib haum nrog cov khoom siv hauv cov ntxhia thiab tso cai rau nws tsim kom ruaj khov, tsis sib haum xeeb.
Thaum ntxiv rau cov cement mortar los yog gypsum matrix, HPMC tsim ib txheej tiv thaiv ib ncig ntawm cov khoom, tiv thaiv lawv los ntawm clumping los yog nyob. Qhov no ua rau muaj ntau homogeneous, yooj yim-rau-kawg sib tov, txo qhov kev pheej hmoo ntawm kev sib cais thiab txhim kho qhov sib xws thiab zoo ntawm cov khoom kawg.
Tsis tas li ntawd, cov dej tuav cov khoom ntawm HPMC ua kom nws khaws cov dej noo nyob rau hauv matrix, txhawb nqa dej kom zoo ntawm cov cement hais thiab ua kom muaj zog thiab ruaj khov ntawm lawv. Qhov no yog qhov tseem ceeb tshwj xeeb tshaj yog nyob rau hauv ib puag ncig hnyav uas cov ntaub ntawv yuav raug rau lub voj voog khov-thaw los yog cov av noo siab, ua rau tawg, tawg lossis delamination.
Ntxiv nrog rau nws cov txiaj ntsig rheological thiab dej khaws cia, HPMC ua raws li cov thickener thiab binder rau cov khoom siv cement, muab kev ruaj ntseg thiab adhesion ntau dua. Nws txhim kho lub sag kuj ntawm cov pobzeb nplaum, tiv thaiv los ntshav ntawm tus kheej-leveling tebchaw thiab txhim khu lub zog ntawm plaster los yog plaster.
HPMC yog cov khoom tsis muaj tshuaj lom thiab biodegradable, ua rau nws zoo tagnrho rau kev tsim kho kom ruaj khov. Tsis muaj VOCs lossis cov pa phem raug tso tawm thaum tsim khoom lossis siv, thiab tuaj yeem muab pov tseg kom nyab xeeb tom qab siv.
High-zoo cellulose HPMC yog cov khoom siv ntau yam thiab tseem ceeb rau kev tsim kho kev lag luam, txhim kho kev ua tau zoo thiab kev ntseeg siab ntawm cov khoom siv cement. Nws muaj peev xwm ua kom sib cais sib npaug thiab ua tau zoo nyob rau hauv mortar thiab plaster matrices, ua ke nrog nws cov dej tuav, thickening thiab binding zog, ua rau nws muaj txiaj ntsig zoo rau txhua qhov kev tsim kho.
Nws txoj kev ruaj ntseg thiab eco-phooj ywg ua rau nws muaj lub luag haujlwm xaiv rau cov neeg tsim khoom thiab cov chaw tsim khoom uas nyiam qhov kev tiv thaiv ib puag ncig thiab kev lav phib xaub. Yog li ntawd, nws yog ib qho khoom siv uas yuav tsum tau lees paub dav thiab siv rau kev txhim kho kev lag luam thiab lub ntiaj teb tag nrho.
Post lub sij hawm: Sep-06-2023