HPMC, izwi kandi ku izina rya hydroxypropyl methylcellulose, ni polymer ibora amazi ikoreshwa cyane mu nganda zo kwisiga, imiti n’ibiribwa. Polimeri ikomoka kuri selile, ibintu bisanzwe biboneka mu bimera. HPMC ni umubyimba mwiza cyane ukoreshwa cyane kugirango wongere ubwiza bwibisubizo bitandukanye. Ubushobozi bwayo bwo gukora geles ya thixotropique nayo ituma ihitamo gukundwa mubikorwa byinshi.
Umubyimba wa HPMC
Umubyimba wa HPMC uzwi cyane munganda. HPMC irashobora kongera ubwiza bwigisubizo mugukora umuyoboro wa geli ufata molekile zamazi. HPMC ibice bigize urusobe rwa gel iyo ruyobowe mumazi kandi rukururana binyuze mumigozi ya hydrogen. Umuyoboro ukora matrise-itatu-yongerera ubwiza bwigisubizo.
Imwe mu nyungu zingenzi zo gukoresha HPMC nkibyimbye ni uko ishobora kubyibuha igisubizo itagize ingaruka kubisobanutse cyangwa ibara ryayo. HPMC ni polymer itari ionic, bivuze ko idatanga amafaranga yose kubisubizo. Ibi bituma biba byiza gukoreshwa muburyo busobanutse cyangwa buboneye.
Iyindi nyungu ya HPMC nuko ishobora kongera ibisubizo kubitekerezo bike. Ibi bivuze ko hakenewe umubare muto wa HPMC kugirango ugere kubwiza bwifuzwa. Ibi birashobora kuzigama ibiciro kubabikora no guha abakiriya ibicuruzwa byinshi byubukungu.
Thixotropy ya HPMC
Thixotropy numutungo wibikoresho kugirango ugabanye ubukonje iyo uhuye nimpagarara zogosha no gusubira mubwiza bwarwo mugihe impagarara zavanyweho. HPMC ni ibikoresho bya thixotropique, bivuze ko ikwirakwira cyangwa isuka byoroshye mugihe cyo guhangayika. Ariko, iyo imihangayiko imaze kuvaho, iragaruka gukomera no kongera kubyimba.
Imiterere ya thixotropic ya HPMC ituma biba byiza kubikorwa byinshi. Kurugero, ikoreshwa muburyo bwo gusiga irangi, nkikoti ryijimye hejuru. Imiterere ya thixotropique ya HPMC yemeza ko igifuniko kiguma hejuru yubusa nta kugabanuka cyangwa gukora. HPMC ikoreshwa kandi mubucuruzi bwibiribwa nkibibyimbye byamasosi no kwambara. Imiterere ya thixotropique ya HPMC yemeza ko isosi cyangwa imyambarire idatonyanga ibiyiko cyangwa amasahani, ahubwo bikomeza kuba binini kandi bihamye.
HPMC ni polymer itandukanye hamwe nibisabwa byinshi mubikorwa bitandukanye. Umubyimba wacyo hamwe na thixotropique ituma biba byiza kwisiga, imiti nibiryo. HPMC ni umubyimba mwiza cyane, wongera ubwiza bwigisubizo utagize ingaruka kubisobanutse cyangwa ibara. Imiterere ya thixotropique yemeza ko igisubizo kitaba kinini cyane cyangwa cyoroshye, bitewe na porogaramu. HPMC ni ikintu cyingenzi mubicuruzwa byinshi, kandi inyungu zayo nyinshi bituma ihitamo gukundwa nababikora nabakiriya.
Igihe cyo kohereza: Kanama-25-2023