Kev sim Hydroxypropyl Methylcellulose (HPMC) Viscosity Test

Ua qhov kev sim viscosity sim rau Hydroxypropyl Methylcellulose (HPMC) suav nrog ntsuas qhov viscosity ntawm HPMC cov tshuaj ntawm ntau qhov ntau thiab kub. Nov yog cov txheej txheem dav dav rau kev ua qhov kev sim ntsuas viscosity:

Cov ntaub ntawv xav tau:

1. Hydroxypropyl Methylcellulose (HPMC) hmoov
2. Distilled dej los yog hnyav (tsim nyog rau koj daim ntawv thov)
3. viscosity ntsuas ntsuas (piv txwv li, viscometer)
4. Stirring pas nrig los yog magnetic stirrer
5. Beakers los yog ntim rau kev sib tov
6. Qhov ntsuas kub
7. Timer lossis stopwatch

Txheej txheem:

1. Kev npaj ntawm HPMC Solution:
   • Npaj cov kev daws teeb meem HPMC nrog ntau qhov sib txawv (piv txwv li, 1%, 2%, 3%, thiab lwm yam) hauv cov dej distilled lossis cov kuab tshuaj uas koj xaiv. Xyuas kom meej tias HPMC hmoov yog tag nrho dispersed nyob rau hauv cov kua los tiv thaiv clumping.
   • Siv lub tog raj kheej kawm tiav lossis sib npaug los ntsuas qhov tsim nyog ntawm HPMC hmoov thiab ntxiv rau hauv cov kua thaum nplawm tas li.
2. Mixing thiab Dissolution:
   • Do cov tshuaj HPMC kom huv si siv ib tug nplawm pas nrig los yog sib nqus stirrer los xyuas kom meej tag nrho dissolution ntawm cov hmoov. Cia cov tshuaj kom hydrate thiab thicken rau ob peb feeb ua ntej kuaj viscosity.
3. Calibration ntawm Viscometer:
   • Yog tias siv lub viscometer, xyuas kom meej tias nws raug ntsuas kom raug raws li qhov chaw tsim khoom cov lus qhia. Teem lub ntsuas rau qhov tsim nyog rau kev ntsuas viscosity.
4. Kev ntsuas viscosity:
   • Ncuav me me ntawm cov tshuaj HPMC npaj rau hauv chav ntsuas ntawm viscometer.
   • Ntxig lub spindle los yog rotating keeb ntawm lub viscometer rau hauv cov tshuaj, xyuas kom meej tias nws yog tag nrho raus dej thiab tsis kov hauv qab los yog ob sab ntawm lub chamber.
   • Pib lub viscometer thiab sau cov viscosity nyeem ntawv tso rau ntawm qhov ntsuas.
   • Rov ua dua qhov ntsuas viscosity rau txhua qhov kev xav tau ntawm HPMC cov tshuaj, kom ntseeg tau tias qhov ntsuas kub thiab lwm yam kev ntsuas nyob ib puag ncig.
5. Kev kho qhov kub thiab txias:
   • Yog tias kuaj qhov ntsuas kub ntawm qhov viscosity, npaj cov tshuaj HPMC ntxiv ntawm qhov xav tau qhov xav tau thiab qhov ntsuas kub.
   • Siv lub ntsuas kub ntsuas kub los ntsuas qhov ntsuas kub ntawm cov kev daws teeb meem thiab kho raws li qhov tsim nyog siv lub da dej da dej lossis qhov chaw tswj qhov kub thiab txias.
6. Kev txheeb xyuas cov ntaub ntawv:
   • Sau cov viscosity nyeem ntawv rau txhua HPMC concentration thiab ntsuas kub.
   • Tshawb xyuas cov ntaub ntawv txhawm rau txheeb xyuas cov xwm txheej lossis kev sib raug zoo ntawm HPMC qhov siab, qhov kub thiab txias, thiab viscosity. Npaj cov txiaj ntsig ntawm daim duab yog tias xav pom kev sib raug zoo.
7. Txhais lus:
   • Txhais cov ntaub ntawv viscosity hauv cov ntsiab lus ntawm koj qhov kev thov tshwj xeeb thiab kev xav txog kev tsim. Xav txog yam xws li cov yam ntxwv xav tau, tuav cov khoom, thiab cov txheej txheem ua haujlwm.
8. Cov ntaub ntawv:
   • Sau cov txheej txheem kev sim, suav nrog cov ntsiab lus ntawm HPMC cov kev daws teeb meem tau npaj, kev ntsuas viscosity coj, thiab cov kev soj ntsuam lossis kev tshawb pom los ntawm kev sim.

Los ntawm kev ua raws li cov txheej txheem no, koj tuaj yeem ua qhov kev sim ntsuas viscosity rau Hydroxypropyl Methylcellulose (HPMC) thiab tau txais kev pom zoo rau nws cov khoom rheological thiab tus cwj pwm nyob rau hauv ntau qhov sib txawv thiab qhov kub thiab txias. Kho cov txheej txheem raws li qhov xav tau raws li cov kev ntsuas tshwj xeeb thiab cov khoom siv muaj.