Ibintu bifatika na shimi bya Hydroxypropyl Methyl Cellulose

Hydroxypropyl Methylcellulose (HPMC) ni polymer itandukanye kandi ifite imiterere yihariye yumubiri na chimique ituma ikoreshwa mubikorwa bitandukanye byinganda. Dore ibintu bimwe byingenzi bya HPMC:

Ibyiza bifatika:

1. Kugaragara: HPMC mubusanzwe ni umweru kugeza kuri cyera, impumuro nziza, kandi ifu idafite uburyohe. Iraboneka mubyiciro bitandukanye, uhereye kuri poro nziza kugeza kuri granules cyangwa fibre, bitewe nibisabwa.
2. Gukemura: HPMC irashonga mumazi akonje, amazi ashyushye, hamwe na solge zimwe na zimwe nka methanol na Ethanol. Igipimo cyo gukemuka no guseswa biterwa nimpamvu nkurwego rwo gusimburwa, uburemere bwa molekile, nubushyuhe.
3. Viscosity: Ibisubizo bya HPMC byerekana imyitwarire ya pseudoplastique cyangwa yogosha, bivuze ko ububobere bwabo bugabanuka hamwe no kongera umuvuduko wogosha. Ubwiza bwibisubizo bya HPMC biterwa nibipimo nko kwibanda, uburemere bwa molekile, nurwego rwo gusimbuza.
4. Hydrated: HPMC ifite amazi menshi kandi irashobora gukurura no kugumana amazi menshi. Iyo ikwirakwijwe mumazi, HPMC hydrat kugirango ikore gele ibonerana cyangwa isobanutse ifite pseudoplastique itemba.
5. Imiterere ya firime: HPMC ibisubizo birashobora gukora firime zoroshye kandi zifatanije mugihe zumye. Izi firime zifite aho zihurira nuburyo butandukanye kandi zirashobora gutanga inzitizi, kurwanya ubushuhe, hamwe nuburyo bwo gukora firime mubitambaro, firime, hamwe nibinini bya farumasi.
6. Ingano ya Particle: Ibice bya HPMC birashobora gutandukana mubunini bitewe nuburyo bwo gukora hamwe n amanota. Ingano nini yo gukwirakwiza irashobora kugira ingaruka kumiterere nko gutembera, gutandukana, hamwe nimiterere.

Ibikoresho bya shimi:

1. Imiterere yimiti: HPMC ni selile ikomoka kuri selile yabonetse na etherification ya selile hamwe na okiside ya propylene na methyl chloride. Gusimbuza hydroxypropyl na methyl matsinda kumugongo wa selulose biha ibintu byihariye HPMC, nko gukemura amazi nibikorwa byubutaka.
2. Impamyabumenyi yo gusimburana (DS): Urwego rwo gusimbuza bivuga impuzandengo ya hydroxypropyl na methyl matsinda yometse kuri buri gice cya anhydroglucose mumurongo wa selile. Indangagaciro za DS ziratandukanye bitewe nibikorwa byakozwe kandi birashobora guhindura ibintu nkibishobora gukemuka, ubwiza, hamwe nubushyuhe bwumuriro.
3. Ubushyuhe bwumuriro: HPMC yerekana ubushyuhe bwiza bwubushyuhe hejuru yubushyuhe. Irashobora kwihanganira ubushyuhe buringaniye mugihe cyo kuyitunganya nta kwangirika gukomeye cyangwa gutakaza ibintu. Ariko, kumara igihe kinini mubushyuhe bwo hejuru bishobora gutera kwangirika.
4. Guhuza: HPMC irahujwe nubwoko butandukanye bwibindi bintu, inyongeramusaruro, hamwe nibisohoka bikoreshwa mubisobanuro. Irashobora gukorana nizindi polymers, surfactants, umunyu, nibikoresho bikora kugirango uhindure imitungo nka viscosity, stabilite, no kurekura kinetics.
5. Imiti ivura imiti: HPMC yinjizwamo imiti kandi ntabwo ikora imiti ihambaye mugihe cyo gutunganya no kubika. Ariko, irashobora kwitwara hamwe na acide ikomeye cyangwa base, okiside, cyangwa ion zimwe mubyuma mubihe bikabije.

Gusobanukirwa imiterere yumubiri na chimique ya Hydroxypropyl Methylcellulose (HPMC) ningirakamaro mugutegura ibicuruzwa no kunoza imikorere mubikorwa bitandukanye mubikorwa nka farumasi, ubwubatsi, ibiryo, amavuta yo kwisiga, hamwe n imyenda.