Reka tuvuge kuri hydroxypropyl methyl celluloseHPMCn'uburyo bwo gupima ubukana bwayo. Ubukana hano bwerekeza ku bukana bugaragara, ari na byo by'ingenzi bigereranya na hydroxypropyl methyl cellulose.
Ibisanzwe. Uburyo busanzwe bwo gupima ni ugupima ubucucike buzenguruka, gupima ubucucike bwa capillary no gupima ubucucike bwo kugwa. Uburyo bwo kumenya hydroxypropyl methyl cellulose bwari ugufatana kwa capillary.
Uburyo bwo kumenya impamyabumenyi, hakoreshejwe Uchs viscometer. Ubusanzwe kumenya igisubizo ni 2% by'amazi, formula ni: V=Kdt. V ni viscosity muri mpa. s naho K ni viscometer ihoraho.
D ni ubucucike ku bushyuhe budahinduka naho T ni igihe kuva hejuru kugeza hasi unyuze muri viscometer mu masegonda. Ubu buryo bwo gukora buragoye cyane, iyo hari ibintu bidashonga.
Amagambo yoroshye guteza amakosa, biragoye kumenya ubwiza bwa hydroxypropyl methyl cellulose. Ubu akoreshwa cyane mu gupima ubukana bwa viscometer izenguruka, ikoreshwa muri rusange mu Bushinwa.
Ifishi ya viscometer ya NDJ-1 ni η=Kα. η ni viscosity, na muri mpa. s, K ni coefficient ya viscometer, na α ni isomo rya pointer ya viscometer.
Uburyo bwo gupima ubukana bwa hydroxypropyl methyl cellulose 2%:
1, ubu buryo bukwiriye mu kumenya imiterere y'amazi atari aya Newtonian (umuti wa polymer, isunika, umuti wa emulsion dispersion liquid cyangwa umuti wa surfactant, nibindi).
2. Ibikoresho n'ibikoresho
2.1 Viscometer yo mu bwoko bwa Rotary (NdJ-1 na NDJ-4 ni byo bisabwa na Pharmacopoeia y'Abashinwa)
2.2 Ubushyuhe buhoraho bwo kwiyuhagira amazi mu bwogero, ubushyuhe buhoraho 0.10C
2.3 Igipimo cy'ubushyuhe ni 0.20C, ibyo bikaba bigenzurwa buri gihe.
2.4 Ibipimo bya Viscometer bikoresha ibipimo byo gushimangira ubwinshi bw'ubwinshi (nka NDJ-1 na NDJ-4) bigomba kugabanywa. Uburinganire bwa 1%. A
8. Ingero ya 0g yapimwe neza hanyuma ishyirwa mu gikombe cyumye kandi gifite uburebure bwa mililitiro 400. Shyiramo mililitiro 100 z'amazi ashyushye ya dogere 80-90 hanyuma ubyuke iminota 10 kugira ngo bitandukanye
Shyira amazi akonje ku rugero rumwe, uvange hanyuma wongeremo amazi akonje kuri 400ml muri rusange. Hagati aho, uvange ubudasiba mu gihe cy'iminota 30 kugira ngo ukore umuti wa 2% (W/W), hanyuma uwushyire muri firigo kugira ngo woge mu rubura ukonje kugeza igihe ukoze urubura rworoshye hejuru.
Kuramo ushyire mu kigega cy'ubushyuhe buhoraho kugira ngo ubushyuhe bwo hagati bugume kuri 20 ℃ 0.1 ℃.
3.1 Gushyiraho no gukoresha igikoresho bigomba gukorwa hakurikijwe amabwiriza y'imikorere y'igikoresho, kandi rotor n'imashini bikwiye bigomba gutoranywa hakurikijwe ingano y'ubushyuhe bw'umusaruro wageragejwe n'ibiteganywa na farumasi hakurikijwe inyandiko y'umusaruro.
Umuvuduko wo kuzenguruka.
3.2 Hindura ubushyuhe bw'amazi buhoraho hakurikijwe uko byagenwe muri buri kintu cy'umuti.
3.3 Igikoresho cyo gupima cyashyizwe mu gikoresho cyagenwe n'igikoresho, maze Inguni yo kuzenguruka (a) ipimwa hakurikijwe amategeko nyuma y'iminota 30 y'ubushyuhe budahinduka. Zimya moteri hanyuma wongere uyishyire ku isoko kugira ngo imenyekane.
Itandukaniro riri hagati y’agaciro k’impuzandengo ntirigomba kurenza 3%, bitabaye ibyo hagomba gukorwa isuzuma rya gatatu.
3.4 Kubara agaciro k'ikigereranyo cy'ibipimo bibiri ukurikije formula kugira ngo ubone ubukana bw'ibicuruzwa byageragejwe.
4. Andika kandi ubare
4.1 Andika icyitegererezo cya viscometer izenguruka, umubare wa rotor n'umuvuduko wakoreshejwe, viscometer ihoraho (agaciro ka K), ubushyuhe bwapimwe, na buri gipimo. Agaciro.
Ifishi yo kubara ya 4.2
Viscosity ihinduka (MPa”s) = Ka aho K ari viscometer ihinduka hakoreshejwe amazi asanzwe afite viscosity izwi naho A ikaba ari inguni yo kuzenguruka
Igihe cyo kohereza: 25 Mata 2024