Hydroxypropylencellulose (HPMC) yog lub cellulose ether dav hauv ntau yam kev lag luam vim nws cov khoom thiab versatility. Nws yog cov tsis muaj tshuaj lom, dej-soluble polymer uas yog soluble hauv ob qho tib si txias thiab dej kub. Nws yog cov khoom muaj txiaj ntsig zoo uas tau siv los ua cov tuab, binder, emiulsifier, thiab zaj duab xis, cov chaw tsim khoom, kev tsim khoom, thiab tshuaj pleev ib ce, thiab tshuaj pleev ib ce.
Ib qho ntawm cov khoom siv nyiaj ntawm HPMC yog nws cov dav viscosity ntau. Lub visccosity ntawm HPMC nyob ntawm ntau yam xws li qib kev hloov pauv, hnyav hnyav thiab xav tau. Yog li, HPMC tuaj yeem siv tau rau hauv ntau cov ntawv thov uas xav tau cov qib viscosity sib txawv. Piv txwv li, cov viscosity high-viscosity HPMC feem ntau yog siv cov thickener thiab stabilizer nyob rau hauv cov zaub mov kev lag luam, thaum cov khoom siv tshuaj qis thiab cov ntsiav tshuaj thiab cov ntsiav tshuaj.
HPMC kev coj dawb huv tseem yog qhov tseem ceeb tshaj plaws. Feem ntau nws los nyob rau hauv ntau qib purity qib li 99% mus rau 99.9%. Cov qhab nia siab tshaj plaws yog feem ntau nyiam los ntawm kev lag luam kws tshuaj, uas muaj cov kev cai nruj nruj ntawm cov khoom siv raw. Qhov siab dua kev coj dawb huv HPMC pab kom ntseeg tau qhov zoo tshaj plaws ntawm cov khoom kawg. Qib ntawm purity tseem cuam tshuam HPMC cov khoom xws li viscosity, solubility, thiab gelation. Feem ntau, cov qib siab dua txhim kho kev ua haujlwm kev ua haujlwm.
Ntxiv rau kev ua piscosity thiab purity, muaj lwm yam tseem ceeb los txiav txim siab thaum xaiv HPMC txoj cai HPMC rau ib daim ntawv thov. Cov no suav nrog cov partyle loj, thaj chaw thaj av, cov ntsiab lus noo noo thiab degree ntawm kev hloov chaw. Qhov loj me thiab thaj tsam ntawm HPMC yuav cuam tshuam rau nws cov solubility, thaum dej noo cov ntsiab lus cuam tshuam rau nws lub neej ruaj khov thiab lub neej. Nws yog qhov tseem ceeb los xaiv cov qib kom raug ntawm kev hloov pauv, piv txwv li cov kev txheeb ze ntawm hydroxyprropyl thiab methyl chaw nyob hauv HPMC molecule. Qib siab dua ntawm kev hloov pauv tuaj yeem ua rau cov dej solubility nce ntxiv thiab txhim kho cov kab viscosity, thaum txo cov qib qis tuaj yeem ua rau cov khoom siv ua yeeb yaj kiab zoo.
Kev Lag Luam Khoom Noj
Hauv kev lag luam khoom noj khoom haus, HPMC feem ntau siv los ua cov ntaub ntawv tuab, emulsifier thiab stabilizer nyob rau ntau yam kua qaub, hnav khaub ncaws, khoom noj siv mis thiab khoom ci. HPMC txhim kho cov kev ntxhib los mos los ntawm kev muab txoj kev du, cream thiab sib txawv sib xws. Nws kuj tseem yuav pab tiv thaiv kom txhob muaj cov khoom xyaw los ntawm kev sib cais, yog li txuas txog lub neej txee ntawm cov khoom noj.
Ib qho ntawm cov khoom lag luam ntawm HPMC hauv kev lag luam khoom noj yog nws lub peev xwm los tswj cov khoom lag luam viscosity ntawm qhov kub thiab txias ntau dua, xws li thaum ua noj ua haus thiab pasteurization. Lub siab-kub ruaj khov ntawm HPMC tso cai rau nws siv rau hauv cov zaub mov muaj kub xws li cov kaus poom lossis cov khoom siv txee.
Kws Tshuaj Kho Mob
Hauv kev lag luam kws tshuaj, HPMC feem ntau siv los ua cov phau ntawv, tsis hais tus tshuaj, tswj hwm tus neeg sawv cev, thiab lwm yam kev npaj. HPMC yog qhov zoo tshaj lwm cov nplaum vim nws tsis muaj tshuaj lom thiab soluble hauv dej kub thiab txias. Lub peev xwm los yaj nyob rau hauv dej kub thiab txias yog muaj txiaj ntsig zoo rau cov av ntub, ib qho txheej txheem rau kev tsim cov ntsiav tshuaj.
HPMC kuj tseem siv los ua ib qho kev ua txhaum rau cov ntsiav tshuaj. Nws pab tawg cov tshuaj noj ua tej daim me me, uas txhim kho tus nqi uas cov tshuaj yog nqus tau hauv lub cev. Tsis tas li ntawd, HPMC feem ntau siv los ua tus thawj coj sawv cev vim nws cov khoom ua yeeb yaj kiab zaj duab xis. Nws tiv thaiv lub ntsiav tshuaj los ntawm ib puag ncig cov ntsiab lus, yog li txuas lub txee lub neej.
muab tso
Hauv kev tsim kho kev tsim kho, HPMC tau siv los txhim kho kev ua haujlwm thiab kev ua tau zoo ntawm ntau yam khoom noj ntau yam xws li Mortars, Grouts thiab Plasters. HPMC ua raws li cov tuab tuab, txhim kho cov nplaum, thiab muab cov khoom siv dej ua kom sib npaug rau cov sib tov. HPMC lub peev xwm los ua cov yeeb yaj kiab tiv thaiv kuj tseem pab tiv thaiv kom txhob muaj dej los ntawm kev nkag mus rau hauv cov cementitious li cas, txhim kho lub siab. Lub viscosity ntawm HPMC plays lub luag haujlwm tseem ceeb hauv kev ua haujlwm ntawm kev sib xyaw. Yog li ntawd, nyob ntawm daim ntawv thov, cov qib viscosity txawv ntawm HPMC tau siv.
txoj kev ua kom zoo nkauj
Hauv kev lag luam kom hniav zoo nkauj, HPMC yog siv los ua cov tuab, stabilizer, thiab zaj duab xis yav tas los hauv ntau yam khoom xws li tshuaj zawv plaub hau, cov khoom noj kom zoo nkauj, thiab muaj ntau yam. HPMC txhim kho cov kev ntxhib los mos thiab zoo sib xws ntawm cov tshuaj pleev ib ce, muab kev du, creamy tiav. Nws kuj tseem txhim kho cov khoom ruaj khov thiab txee lub neej los ntawm kev tiv thaiv kev sib cais ntawm cov khoom xyaw. Tsis tas li ntawd, cov yeeb yaj kiab ua yeeb yam ntawm HPMC muab txoj kev tiv thaiv HPMC muab cov teeb meem tiv thaiv uas pab khaws cia noo noo, yog li tiv thaiv drying.
Hauv kev xaus
HydroxyPropyyl methylcellose muaj ntau yam viscosity thiab kev xav tau huv. Nws yog ntau cov khoom siv raw ntau dua li hauv ntau yam kev lag luam, tshuaj, kev tsim kho, thiab tshuaj pleev ib ce. Cov dav viscosity ntau yam tso cai HPMC tau siv ntau yam kev siv cov ntawv thov viscosity sib txawv. Qib siab ntawm kev coj ua yog qhov tseem ceeb rau kev lag luam kws tshuaj, uas muaj cov cai nruj me ntsis ntawm cov khoom siv raw. HPMC tseem ceeb heev rau kev ua haujlwm ntawm ntau cov khoom lag luam, yog li kev txiav txim siab ntawm cov viscosity yog thiab qib purity yog qhov tseem ceeb.
Lub Sijhawm Post: Sep-06-2023