Hydroxypropyl methylcellulose ni iki?

1. Intangiriro

Hydroxypropyl methylcellulose (HPMC) ni polymer ikoreshwa cyane na polymer ikomoka kuri selile. Ni ionic, idafite impumuro nziza, itaryoshye, ifu yera-yera yera ikoreshwa cyane mubiribwa, imiti, no kwisiga. HPMC ifite porogaramu zitandukanye, zirimo kubyimba, kwigana, guhagarika, guhagarika, no gukora firime. Irakoreshwa kandi nka binder, lubricant, na disintegrant mugukora ibinini na capsules.

2. Ibikoresho bito

Ibikoresho by'ibanze bikoreshwa mu gukora HPMC ni selile, ni polyisikaride igizwe na glucose. Cellulose irashobora kuboneka ahantu hatandukanye, harimo ibiti byimbuto, ipamba, nibindi byatsi. Cellulose noneho ivurwa hakoreshejwe imiti kugirango itange hydroxypropyl methylcellulose.

3. Uburyo bwo gukora

Ibikorwa byo gukora HPMC birimo intambwe nyinshi. Ubwa mbere, selile ivurwa na alkali, nka sodium hydroxide, kugirango ikore selile. Iyi alkali selulose noneho ikorwa na methyl chloride na okiside ya propylene kugirango ikore hydroxypropyl methylcellulose. Hydroxypropyl methylcellulose noneho isukurwa hanyuma ikumishwa kugirango ibe ifu yera.

4. Kugenzura ubuziranenge

Kugenzura ubuziranenge nigice cyingenzi mubikorwa byo gukora HPMC. Ubwiza bwibicuruzwa bugenwa nubuziranenge bwa selile, urwego rwo gusimbuza hydroxypropyl groupe, hamwe nurwego rwo gusimbuza itsinda rya methyl. Isuku ya selile igenwa no gupima ubwiza bwumuti, mugihe urwego rwo gusimburwa rugenwa no gupima urugero rwa hydrolysis ya hydroxypropyl methylcellulose.

5. Gupakira

Ubusanzwe HPMC ipakirwa mumifuka cyangwa ingoma. Ubusanzwe imifuka ikozwe muri polyethylene cyangwa polypropilene, mugihe ingoma ziba zikoze mubyuma cyangwa plastike. Ibikoresho byo gupakira bigomba guhitamo kugirango ibicuruzwa birindwe nubushuhe nibindi bidukikije.

6. Ububiko

HPMC igomba kubikwa ahantu hakonje, humye, kure yizuba ryizuba nandi masoko yubushyuhe. Ibicuruzwa bigomba kandi kurindwa ubushuhe nibindi bintu bidukikije.

7. Umwanzuro

HPMC ni polymer ikoreshwa cyane mumazi ya polymer ikomoka kuri selile. Ikoreshwa mu nganda zitandukanye, zirimo ibiribwa, imiti, n’amavuta yo kwisiga. Igikorwa cyo gukora HPMC gikubiyemo intambwe nyinshi, zirimo kuvura selile hamwe na alkali, reaction ya selile ya alkali hamwe na methyl chloride na okiside ya propylene, no kweza no gukama hydroxypropyl methylcellulose. Kugenzura ubuziranenge nigice cyingenzi mubikorwa byo gukora, kandi ibicuruzwa bigomba kubikwa ahantu hakonje, humye, kure yizuba ryinshi nandi masoko yubushyuhe.