Hydroxypropyl methylcellulose (HPMC) ni selile itandukanye ya selile ikoreshwa cyane mubikorwa byubwubatsi, cyane cyane mumashanyarazi yumye. Imiterere yihariye izamura imikorere nogukoresha za minisiteri, bigira uruhare runini mubikorwa byabo.
Imiterere ya Shimi na Synthesis
HPMC ikomoka kuri selile, polymer karemano iboneka murukuta rw'ibimera. Ihinduranya binyuze muri etherification ya selile hamwe na methyl chloride na oxyde ya propylene. Ubu buryo busimbuza amwe mu matsinda ya hydroxyl muri molekile ya selile na mikorobe (-OCH₃) na hydroxypropyl (-OCH₂CH (OH) CH₃). Urwego rwo gusimbuza no kugereranya imikorere ya hydroxypropyl matsinda bigena imiterere yihariye ya HPMC, nko kwikemurira ibibazo, ibishishwa, hamwe nubushyuhe bwumuriro.
Ibyiza bya HPMC muri Kuma-Kuvanga Mortar
1. Kubika Amazi
HPMC ifite akamaro kanini mukugumana amazi mvange ya minisiteri. Uyu mutungo wo gufata amazi ni ngombwa kuko utanga amazi meza ya sima, ukongerera uburyo bwo gukira. Gufata neza amazi biganisha ku mikorere myiza nigihe kinini cyo gufungura, bikagabanya ibyago byo gukama imburagihe, bishobora gutera kugabanuka no gucika. Byongeye kandi, itanga amazi ahoraho yo gutanga sima, igateza imbere imashini nimbaraga za minisiteri.
2. Guhindura imvugo
HPMC ihindura cyane rheologiya yumye-ivanze ya minisiteri. Ikora nkibyimbye, byongera ubwiza bwimvange ya minisiteri. Uyu mutungo ningirakamaro mugucunga imigendekere nogukwirakwizwa kwa minisiteri, byoroshye gushira kumurongo uhagaze utanyeganyega. Ifasha kandi kugera kumurongo woroshye kandi umwe mugihe cyo gusaba, kwemeza neza no guhuriza hamwe. Guhindura imvugo ya HPMC itezimbere imikorere rusange hamwe nibiranga minisiteri.
3. Gutezimbere
HPMC yongerera imbaraga zifatika za minisiteri yumye. Itezimbere imbaraga zubusabane hagati ya minisiteri nubutaka butandukanye nkamatafari, beto, na tile. Ibi nibyingenzi byingenzi mubisabwa nka tile yometse hamwe na sisitemu yo hanze yubushyuhe. Gutezimbere neza bigabanya amahirwe yo gusibanganya kandi bikarebera kuramba kuramba.
4. Gukora no Guhoraho
Imwe mu nyungu zibanze za HPMC ni ugutezimbere imikorere no guhoraho kwa minisiteri yumye. Iremera kuvanga byoroshye no gukoresha neza, itanga amavuta yimyenda yoroshye gukwirakwizwa no gushushanya. Imikorere yongerewe imbaraga igabanya imbaraga zisabwa mugihe cyo gusaba, bigatuma inzira ikora neza kandi ntigabanye akazi. Iremeza kandi gukwirakwiza kimwe cya minisiteri, biganisha ku bwiza bwiza.
5. Ubushyuhe bwa Thermal
HPMC yerekana imiterere yubushyuhe bwumuriro, bivuze ko ikora gel iyo ishyushye. Uyu mutungo ni ingirakamaro mubisabwa aho hakenewe kurwanya ubushyuhe. Mugihe cyo gukoresha minisiteri, ubushyuhe bwakozwe bushobora gutera kwiyongera kwigihe gito kwijimye, bifasha mukubungabunga imiterere no gutuza kwa minisiteri ikoreshwa. Ubushyuhe bumaze kugabanuka, gel isubira uko yari imeze, bituma ikomeza gukora.
6. Kwinjira mu kirere
HPMC irashobora kumenyekanisha no guhagarika microscopique yo mu kirere ivanze na minisiteri. Uku guhumeka ikirere kunoza ubukonje bwa minisiteri itanga umwanya wa kirisiti ya barafu yaguka, kugabanya umuvuduko wimbere no kwirinda kwangirika. Byongeye kandi, umwuka winjiye utezimbere imikorere nubushobozi bwa minisiteri, byoroshye gukoreshwa mubihe bitandukanye.
7. Guhuza nibindi Byongeweho
HPMC irahujwe nurwego runini rwinyongera zikoreshwa mubisanzwe byumye-bivanze na minisiteri, nka superplasticizers, retarders, na yihuta. Uku guhuza kwemerera gukora imvange ya minisiteri ivanze kugirango yuzuze ibisabwa byihariye. Kurugero, HPMC irashobora gukorana hamwe na superplasticizers kugirango iteze imbere mugihe ikomeza ubwiza bwifuzwa.
8. Gushiraho Filime
HPMC ikora firime yoroheje, yoroheje iyo yumutse, igira uruhare mubutaka bwa minisiteri. Iyi firime ikora ifasha mukugenzura umwuka wamazi kandi ikongerera imbaraga zubuso nigihe kirekire cya minisiteri. Itanga kandi urwego rukingira rushobora kunoza ikirere no kurwanya abrasion ya minisiteri ikoreshwa.
9. Kurwanya Ibidukikije
HPMC itanga imbaraga zo kurwanya ibidukikije bitandukanye, harimo ubushuhe, ihindagurika ry'ubushyuhe, hamwe n’imiti. Uku kurwanya ni ingenzi cyane kuramba no kuramba kwa minisiteri yumye, cyane cyane mubihe bidukikije cyangwa bihindagurika. Ifasha mukubungabunga imikorere nigaragara rya minisiteri yikirenga, kugabanya ibikenewe kubungabungwa kenshi cyangwa gusanwa.
10. Igipimo nogukoresha
Igipimo cya HPMC muri minisiteri yumye-ivanze mubusanzwe iri hagati ya 0.1% na 0.5% kuburemere bwuruvange rwumye. Igipimo cyihariye giterwa nibintu byifuzwa nubwoko bwa porogaramu. Kurugero, ibipimo byinshi birashobora gukoreshwa mugufata tile kugirango tunonosore kandi bikore, mugihe dosiye yo hasi irashobora kuba ihagije kubisanzwe-minisiteri. Kwinjiza HPMC mubuvange bwumye biroroshye, kandi birashobora gutatana byoroshye mugihe cyo kuvanga.
HPMC ni ikintu cy'ingenzi mu bikoresho byumye-bivanze na minisiteri bitewe n'imikorere yayo myinshi. Ubushobozi bwayo bwo kugumana amazi, guhindura rheologiya, kunoza imiterere, kongera imikorere, no gutanga ibidukikije birwanya ibidukikije bituma iba inyongera yingirakamaro mubikorwa bitandukanye byubwubatsi. Mugusobanukirwa no gukoresha neza ibintu shingiro bya HPMC, abayikora barashobora gukora imikorere-yumye-ivanze ya minisiteri yujuje ibyifuzo bitandukanye byubwubatsi bugezweho.
Igihe cyo kohereza: Jun-14-2024