HPMC, lossis hydroxypropyl cellulose, yog ib qho khoom siv ntau thiab tsis tseem ceeb hauv tsev uas tau cog hauv cov koob npe nrov nyob rau xyoo tsis ntev los no. As a cellulose derivative, HPMC has applications ranging from cosmetics to adhesives, and most notably, it has found its way into the construction industry as a thickener, adhesive, protective colloid, emulsifier and stabilizer.
Kev tsim kho-qib HPMC yog qhov zoo, dej-soluble polymer siv nyob rau ntau yam khoom noj khoom haus muaj xws li cov plasticitive, gutsws, thiab cov tshuab sab nrauv (EIFS). Nws cov khoom muaj ntau yam ua rau nws cov kev daws teeb meem zoo tshaj plaws rau ob qho tshiab tsim thiab kho cov phiaj xwm kev ua haujlwm, raws li nws txhim kho cov khoom lag luam thiab kev sib tham ntawm ntau cov ntaub ntawv.
Ib qho ntawm qhov zoo ntawm HPMC yog nws cov khoom siv dej zoo heev. Qhov no txhais tau tias nws tuaj yeem pab txo cov dej kom tsawg rau cov khoom siv cov paj ntaub yog yam tsis muaj kev txi cov khoom lossis kev ua haujlwm ntawm kev sib xyaw. Los ntawm kev khaws cia noo noo, nws tiv thaiv cov sib tov los sib tov, pab txhawm rau txhim kho cov nplaum thiab lub zog ntawm cov khoom kawg.
Tsis tas li ntawd, HPMC ua raws li kev tiv thaiv kev pheej hmoo, pab txo qis kev pheej hmoo ntawm cais, tawg thiab shrinkage hauv cov khoom siv xis. Qhov no ua rau nws muaj txiaj ntsig zoo tagnrho rau cov khoom lag luam uas tau tshwm sim rau huab cua phem lossis xav tau kev ntxhov siab ntau.
Ntxiv rau cov kev ua tau zoo no, HPMC tau pom dav dav raws li cov khoom siv nyob ruaj khov. Ua los ntawm cov khoom siv rov ua tau dua tshiab, nws tsis muaj tshuaj lom thiab lom, uas ua rau nws qhov kev xaiv zoo tshaj plaws rau ib puag ncig cov vaj tse thiab cov tuam txhab kev tsim kho cov tuam txhab.
Raws li cov pov thawj ntawm nws cov versatility, HPMC kuj tau siv nyob rau hauv kev tsim cov gypsum-based khoom xws li stucco thiab sib koom ua ke sib txuas. Hauv qhov no, HPMC pab txhawm rau txhim kho kev ua haujlwm thiab sib xyaw ntawm cov sib tov, thaum tseem nce lub zog ntawm stucco thiab substrate.
Qib Architural kawm HPMC muaj nyob rau hauv ntau yam viscosities thiab loj me me, tso cai rau cov khoom yuav tsum tau ua rau cov khoom lag luam tshwj xeeb. Qhov no ua rau nws muaj cov khoom siv hloov tau yooj yim uas tuaj yeem siv ntau cov ntawv thov thiab ib puag ncig.
Hauv kev xaus, HPMC yog cov khoom tseem ceeb rau kev tsim kho kev tsim kho thiab nws txoj kev ua tau zoo yog ntau. Nrog nws cov dej ua haujlwm zoo, tiv thaiv kev tiv thaiv kev tiv thaiv thiab muaj kev ruaj khov thiab muaj txiaj ntsig ntxiv rau txhua yam khoom. Nws txhim kho kev ua tau zoo, txo cov pov tseg thiab yog qhov zoo rau ib puag ncig cov neeg tsim thiab tsim cov tuam txhab. Kev siv HPMC yeej ua rau lub neej tom ntej ntawm kev tsim kho kev tsim kho.
Lub Sijhawm Post: Jul-11-2023