Dab tsi yog qhov viscosity ntawm HPMC tov?

Lub viscosity ntawm hydroxypropyf methylcellose (HPMC) kev daws teeb meem nyob ntawm ntau yam xws li lub siab, kub, thiab shear tus nqi.

1.introduction rau HPMC:
HydroxyPropyyl methylulose (HPMC) yog qhov tsis-ionic cellulose ither tau los ntawm cellulose, lub ntuj polymer pom hauv cov nroj tsuag. Nws yog feem ntau siv nyob rau hauv ntau yam kev lag luam xws li cov tshuaj, kev tsim kho, khoom noj, thiab tshuaj pleev ib ce vim nws cov khoom tshwj xeeb. HPMC yog soluble hauv dej thiab qee cov kuab tshuaj organic, sib sau ua kom meej thiab tsis muaj xim.

2. Cov ntaub ntawv ntawm HPMC:
Kws Tshuaj Kho Mob: Hauv cov chaw tshuaj, HPMC tau siv dav ua tus tswj hwm tus neeg sawv cev, thiab cov yeeb yaj kiab ua yeeb yam, tshuaj ntsiav, thiab cov kev daws teeb meem ophtualmic.
Kev Tsim Kho: HPMC ua haujlwm ua cov neeg sawv cev tuab, dej tswj hwm cov ntaub ntawv, xws li Mortars, Grouts, thiab cov plasters, txhim kho kev ua haujlwm thiab kev ua haujlwm.
Kev lag luam khoom noj: HPMC yog siv los ua cov tuab, stabilizer, thiab emulsifier hauv cov khoom noj, suav nrog cov kua ntses, cov khoom noj ua haus, thiab cov khoom qab zib.
Cov tshuaj pleev ib ce: hauv tshuaj pleev ib ce, HPMC ua raws li cov tuab, zaj duab xis yav tas los, thiab phau ntawv hauv cov khoom lag luam zoo li cream, tshuaj, zawv plaub hau, thiab cov txiv hmab.

3.Fact cuam tshuam rau viscosity ntawm HPMC cov kev daws teeb meem:
Lub siab: Lub visccity ntawm HPMC cov kev daws teeb meem feem ntau nce nrog cov polymer ntau dua vim muaj kev nce qib thiab cuam tshuam ntawm cov saw polymer.
Kub: viscosity txo qis nrog kev nce kub vim kev siv cov kev sib xyaw ua ke, ua kom zoo dua polymer saw kev mus ncig ua si thiab txo viscosity.
Molecular Qhov hnyav: Qhov hnyav hnyav HPMC feem ntau ua rau cov kab mob siab siab dhau los vim muaj cov saw dav ntau dua thiab ntev dua polymer.
Shear Tus Nqi: HPMC cov kev daws teeb meem feem ntau ua rau muaj tus cwj pwm tsis sib xws nrog kev ua kom raws li cov kev sib tw ntawm cov kev taw qhia ntawm kev ntws.

4.Mov zis rau kev ntsuas viscosity:
Brookfield Viscompeter: Qhov kev siv tawm mus Viscepteter siv lub zog tas mus li, muab viscosity tsis tu ncua, CP) lossis Millipaite-vib nas this (MpaMi.
Rheometer: Kev ntsuas cov teeb meem ntawm HPMC nyob rau hauv cov kev tswj hwm kev ntxhov siab lossis kev nkag siab mus rau hauv cov kev coj tus cwj pwm thiab cov phiaj xwm Visoelastic.
Cov Vapcometer Viscometer: Cov txujci no cuam tshuam nrog kev daws teeb meem HPMC los ntawm kev sib tsoo ntawm HPMC los ntawm kev sib tsoo ntawm lub ntiajteb txawj nqus lossis siab, muab viscosity qhov tseem ceeb raws li kev ntws thiab lub zog poob.

5.Qhov tseeb ntawm viscosity hauv kev lag luam sib txawv:
Kws tsim khoom: hauv cov tshuaj ntawm cov tshuaj, kev tswj hwm ntawm HPMC cov kev daws teeb meem yog qhov tseem ceeb rau kev siv tshuaj yeeb zoo, thiab tus neeg mob kev txais txiaj ntsig ntawm qhov ncauj thiab cov ntaub ntawv tshuaj pleev ib ce.
Kev Tsim Kho: Openal Viscosity ntawm HPMC-based additives hauv cov ntaub ntawv kev tsim kho kom ua tiav kev ua haujlwm, thiab cov nplaum, ua rau cov khoom lag luam thiab cov khoom tiav.
Kev Lag Luam Khoom Noj: Viscosity ua lub luag haujlwm tseem ceeb hauv kev ntxhib los mos, thiab cuam tshuam cov kev xav ntawm cov zaub mov zoo li tuab, qab zib, thiab kev ci ntsa iab.
Cov tshuaj pleev ib ce: tswj viscosity yog qhov tseem ceeb rau cov tshuaj pleev ib ce nrog cov khoom thov xav tau, xws li kev siv, yooj yim rau daim tawv nqaij lossis plaub hau plaub ntug.

Lub viscos ntawm HPMC cov kev daws teeb meem yog cuam tshuam los ntawm ntau yam los ntawm ntau yam suav nrog kev xav, kub, thiab shear tus nqi. Qhov tseeb kev ntsuas ntawm viscosity yog qhov tseem ceeb rau ensuring cov khoom lag luam zoo, thiab muaj raws li kev lag luam sib txawv. Nkag siab txog kev coj tus cwj pwm HPMC yog qhov tseem ceeb rau cov khoom lag luam nrog xav ntws ntws los thiab ua haujlwm. Raws li kev tshawb nrhiav thiab kev txhim kho hauv kev kawm txuj ci polymer nyob ua ntej, HPMC thiab nws txoj haujlwm tseem ceeb yuav ua tau ib qho kev siv, los ntawm kws tshuaj, los ntawm cov kws tshuaj, los ntawm kws tshuaj los siv thiab dhau.