Hydroxypropylmethylcellulose (HPMC) yog cov khoom siv dav siv hauv kev tsim kho kev lag luam. Nws yog muab los ntawm cellulose thiab yog siv los ua thickener, stabilizer thiab emulsifier. Ib qho txiaj ntsig zoo tshaj plaws ntawm HPMC yog nws lub peev xwm los txhim kho kev ua haujlwm thiab kev ua haujlwm ntawm mortar thiab pob zeb. Hauv tsab xov xwm no, peb yuav tham txog yuav ua li cas HPMC tuaj yeem txhim kho mortared pob zeb thiab nws qhov zoo.
Txhim kho kev tuav dej
Ib qho txiaj ntsig zoo tshaj plaws ntawm kev siv HPMC hauv mortared pob zeb yog tias nws txhim kho dej tuav. HPMC yog cov dej-soluble polymer uas pab khaws cov dej noo mus ntev. Qhov no yog qhov tshwj xeeb tshaj yog nyob rau qhov twg mortar los yog pob zeb yuav tsum tau maj mam los yog qhov chaw sib tov muaj kev pheej hmoo ntawm ziab sai heev. Kev txhim kho dej tuav cia muab sijhawm rau cov neeg ua haujlwm ntau dua los tuav cov khoom siv thiab txo qhov kev pheej hmoo ntawm kev tawg lossis lwm yam tsis xws luag.
Txhim kho kev ua haujlwm
Ntxiv nrog rau kev txhim kho dej tuav, HPMC kuj tuaj yeem txhim kho kev ua haujlwm ntawm mortar thiab pob zeb. HPMC ua raws li cov roj nplua nyeem, uas txhais tau hais tias nws pab txo kev sib txhuam ntawm cov khoom sib xyaw. Qhov no txo cov kev siv zog uas yuav tsum tau sib tov thiab tso cov ntaub ntawv. Tsis tas li ntawd, HPMC txhim kho rheology ntawm qhov sib tov, ua kom nws smoother thiab zoo ib yam. Qhov no ua rau nws yooj yim dua los siv cov khoom siv hauv txhua qhov xwm txheej.
txhim kho adhesion
HPMC tseem tuaj yeem txhim kho cov khoom sib txuas ntawm mortar thiab pob zeb. Thaum ntxiv rau mortar sib tov, nws yuav pab ua kom muaj zog ntawm cov khoom siv. Qhov no txhais tau hais tias lub mortar yuav muaj peev xwm ua tau zoo dua rau lub substrate nws yog siv rau. Qhov no yog qhov tshwj xeeb tshaj yog thaum ua haujlwm nrog cov chaw nyuaj xws li masonry lossis pob zeb. Tsis tas li ntawd, HPMC pab tiv thaiv kom tsis txhob shrinkage thiab tawg thaum lub sij hawm kho, yog li ua kom tag nrho cov nyiaj ntawm cov khoom.
Nce durability
Lwm qhov txiaj ntsig tseem ceeb ntawm kev siv HPMC hauv mortar thiab pob zeb yog tias nws ua rau kom cov khoom siv tau ntev. HPMC pab tiv thaiv cov ntaub ntawv los ntawm huab cua los ntawm huab cua xws li kub heev, raug UV thiab dej puas. Qhov no txhais tau tias cov khoom siv yuav kav ntev dua thiab xav tau kev saib xyuas tsawg dua lub sijhawm. Nrog rau kev ua kom muaj zog ntxiv, kev ua haujlwm ntev, cov qauv muaj zog tuaj yeem ua tiav, uas yog qhov tseem ceeb hauv ntau daim ntawv thov kev tsim kho.
txhim kho qhov sib xws
HPMC tuaj yeem txhim kho qhov sib xws ntawm mortar thiab pob zeb. Thaum ntxiv rau ib qho kev sib tov, nws yuav pab kom muaj kev faib tawm thiab sib xyaw ua ke ntawm cov ntaub ntawv. Qhov no txhais tau hais tias cov khoom ntawm cov khoom yuav zoo ib yam. Qhov no ua rau nws yooj yim dua los tswj thiab ua tiav qhov kev xav tau ntawm lub zog thiab cov tsos. Nrog kev sib xws ntau dua, nws yooj yim dua los xyuas kom meej tias cov ntaub ntawv ua tau raws li cov qauv xav tau lossis cov lus qhia tshwj xeeb.
Kev siv hydroxypropyl methylcellulose hauv mortar thiab pob zeb yog qhov kev xaiv zoo. HPMC txhim kho cov txheej txheem, dej tuav, adhesion, durability thiab sib xws. Cov txiaj ntsig ntawm HPMC txuas mus rau ntau yam kev tsim kho xws li phab ntsa plasters, pobzeb adhesives, thiab grouts.
Kev siv HPMC hauv mortar thiab pob zeb yog ib txoj hauv kev zoo los txhim kho cov khoom siv thiab kev ua haujlwm. Nws txhim kho cov khoom tseem ceeb xws li dej tuav, kev ua haujlwm, adhesion, durability thiab sib xws, nqa ntau yam txiaj ntsig rau kev tsim kho kev lag luam. HPMC muab cov kws tshaj lij kev tsim kho nrog cov cuab yeej muaj zog los tsim cov qauv zoo, ruaj khov thiab txhim khu kev qha uas ua tau raws li qhov xav tau nruj ntawm kev tsim kho niaj hnub.
Post lub sij hawm: Aug-30-2023