Hydroxypropylmethylcellulose (HPMC) yog ib qho tseem ceeb thiab muaj ntau yam khoom siv hauv ntau qhov kev lag luam nrog rau ntau yam plaster. HPMC yog cellulose ether muab los ntawm cellulose thiab yog ib tug nonionic, dej-soluble polymer. Nws yog feem ntau siv los ua cov thickener, stabilizer thiab emulsifier hauv cov khw muag khoom ntub thiab qhuav. Hauv kev lag luam gypsum, HPMC yog siv los ua cov khoom tawg thiab cov thickener. Kab lus no qhia txog cov txiaj ntsig ntawm kev siv HPMC hauv kev tsim gypsum.
Gypsum yog ib qho ntxhia tshwm sim feem ntau siv hauv kev tsim kho kev lag luam los tsim cov cement thiab gypsum. Txhawm rau tsim cov khoom siv gypsum, gypsum yuav tsum ua ntej ua cov hmoov hmoov. Cov txheej txheem ntawm kev ua gypsum hmoov muaj kev sib tsoo thiab sib tsoo cov ntxhia, tom qab ntawd cua sov nws ntawm qhov kub thiab txias kom tshem tawm cov dej ntau dhau. Tom qab ntawd cov hmoov qhuav qhuav yog tov nrog dej los ua ib qho muab tshuaj txhuam los yog slurry.
Ib qho ntawm cov khoom tseem ceeb tshaj plaws ntawm HPMC hauv kev lag luam gypsum yog nws lub peev xwm dispersing. Hauv cov khoom lag luam gypsum, HPMC ua raws li cov khoom tawg, tawg pawg ntawm cov khoom thiab ua kom lawv cov khoom sib txawv thoob plaws hauv cov slurry. Qhov no ua rau ib qho smoother, zoo ib yam paste uas yooj yim rau ua hauj lwm nrog.
Ntxiv nrog rau qhov ua kom tawg, HPMC kuj yog cov thickener. Nws pab ua kom cov viscosity ntawm gypsum slurry, ua kom yooj yim rau kev tswj thiab siv. Qhov no yog ib qho tseem ceeb tshwj xeeb tshaj yog rau cov khoom uas yuav tsum tau muaj ib tug tuab tuab, xws li kev sib koom ua ke los yog plaster.
Lwm qhov txiaj ntsig tseem ceeb ntawm HPMC hauv kev lag luam gypsum yog nws txoj kev ua haujlwm tau zoo. Ntxiv HPMC rau gypsum slurries ua rau cov khoom sib kis tau yooj yim dua thiab ua haujlwm ntev dua. Qhov no txhais tau tias cov neeg cog lus thiab cov tib neeg muaj sijhawm ntau los ua haujlwm ntawm cov khoom ua ntej nws teeb tsa.
HPMC kuj tseem txhim kho qhov zoo thiab ua haujlwm ntev ntawm cov khoom kawg. Los ntawm kev ua raws li cov khoom tawg, HPMC xyuas kom meej tias cov gypsum hais tau sib npaug thoob plaws hauv cov khoom. Qhov no ua rau cov khoom ruaj khov, zoo ib yam thiab tsis tshua muaj kev tawg thiab tawg.
HPMC yog ib qho khoom siv rau ib puag ncig. Nws yog non-toxic, biodegradable thiab tsis ua pa phem. Qhov no ua rau nws yog qhov kev xaiv zoo tshaj plaws rau kev lag luam kev txhawj xeeb txog kev cuam tshuam ib puag ncig ntawm lawv cov khoom.
HPMC yog cov khoom tseem ceeb hauv tsev neeg gypsum nrog ntau cov txiaj ntsig. Nws muaj peev xwm ua kom tawg, thicken, txhim kho kev ua tau zoo thiab cov khoom siv kawg tau ua rau nws yog ib feem tseem ceeb ntawm kev lag luam. Nws ib puag ncig tus phooj ywg kuj yog ib qho txiaj ntsig tseem ceeb hauv lub ntiaj teb uas ntau qhov kev lag luam tab tom nrhiav kom txo lawv cov kev cuam tshuam ib puag ncig.
nyob rau hauv xaus
Hydroxypropylmethylcellulose (HPMC) yog ib qho tseem ceeb muaj nyob rau hauv plaster ntau yam. Nws muaj peev xwm ua kom tawg, ua kom tuab, txhim kho cov txheej txheem thiab cov khoom siv kawg tau ua rau nws yog ib feem tseem ceeb ntawm kev lag luam. Tsis tas li ntawd, nws cov phooj ywg ib puag ncig yog qhov txiaj ntsig tseem ceeb hauv lub ntiaj teb uas ntau qhov kev lag luam xav kom txo lawv cov kev cuam tshuam ib puag ncig. Zuag qhia tag nrho, HPMC yog qhov kev xaiv zoo tshaj plaws rau txhua qhov kev lag luam nrhiav kev txhim kho lawv cov khoom zoo thaum tseem paub txog lawv cov kev cuam tshuam ib puag ncig.
Post lub sij hawm: Sep-05-2023