HydroxyPropyl Methylcellllse, bikunze kwitwa FPMC, ni imiti ikoreshwa cyane kandi ibiryo byiyongera. Bitewe no kwikunda neza, guhambira ubushobozi hamwe nubushobozi bwa firime, byakoreshejwe cyane mubikorwa byimiti. HPMC ikunze gukoreshwa munganda zibiribwa nkamagana, Emulifier na stibar. Isuku ya HPMC ihambaye cyane munganda n'ibiribwa nk'ibirimo bigira ingaruka ku mikorere n'umutekano wibicuruzwa. Iyi ngingo izaganira ku cyemezo cya HPMC n'uburyo bwayo.
Hpmcs niyihe?
HydroxyPropylmethylcellcellCellCellse (HPMC) ni ether ether yakomotse kuri methylcellse. Uburemere bwabwo bwa molekile ni 10,000 kugeza 1.000.000 Daltons, kandi ni ifu yera cyangwa yera yera, impumuro nziza kandi itaryoshye. HPMC irashonje byoroshye mumazi, kandi nanone uhungabike mubintu bimwe na bimwe byamagana nka ethanol, Butanol, na chloroform. Ifite imitungo yihariye nko kugumana amazi, kubyimba no guhuza ubushobozi, bituma bigira intego yimiti n'ibiribwa.
Icyemezo cya HPMC
Isuku ya HPMC iterwa nibintu byinshi nkurwego rwo gusimbuza (DS), ibikubiyemo ninkoko. DS igereranya umubare wamatsinda ya hydroxyl yasimbuwe nitsinda rya hydroxyPropyl muri molekile ya selile. Urwego rwo hejuru rwo gusimbuza rwongera igisubizo cya HPMC kandi kikazamura ubushobozi bwo gukora firime. Ibinyuranye, urwego rwo hasi rwo gusimbuza rwavamo kugabanya ibibazo byo kwishyurwa no gukora firime.
Uburyo bwa HPMC Uburyo bwo kwemeza
Hariho uburyo bwinshi bwo kumenya ubuziranenge bwa HPMC, harimo no kwigisha aside, isesengura ryibanze, imikorere-yimikorere ya chromatografiya (HPLC), hamwe na infratkopi (ir). Hano hari ibisobanuro kuri buri buryo:
tid-shingiro
Uburyo bushingiye kubitekerezo byo kutabogama hagati ya aside nibanze muri HPMC. Ubwa mbere, HPMC irashonga mubintu hamwe nubunini buzwi bwa aside cyangwa igisubizo gifatika cyongeraho kwibanda. IGIKORWA CY'IGIHE byakozwe kugeza PH yageraga ku kutabogama. Kuva ku mubare wa aside cyangwa bashimwe, urwego rwo gusimburwa rushobora kubarwa.
Isesengura ryibanze
Isesengura ryibanze ripima ijanisha rya buri kintu kiboneka kurugero, harimo karubone, hydrogen, na ogisijeni. Urwego rwo gusimbuza rushobora kubarwa kuva kuri buri kintu gihari muri sade ya HPMC.
Imikorere minini yamazi ya chromatografiya (HPLC)
HPLC ni tekinike isesengura cyane itandukanya ibice byivanze bishingiye kumikoranire yabo hamwe nicyiciro cyahagaze kandi kigendanwa. Muri HPMC, urwego rwo gusimburwa rushobora kubarwa mugupima igipimo cya hydroxyPropyl kumatsinda ya methyl kurugero.
Ibice bya Infrared (IR)
Ibikoresho bya infrared ni tekiniki isesengura ipima cyangwa kohereza imirasire ya infraft na sample. HPMC ifite impinga zitandukanye kuri hydroxyl, methyl na hydroxyPropyl, ishobora gukoreshwa mukumenya urwego rwo gusimburwa.
Isuku ya HPMC ni ingenzi munganda n'ibiribwa, kandi icyemezo cyacyo ni ngombwa kugira ngo umutekano n'ibicuruzwa byanyuma. Uburyo bwinshi burahari kugirango tumenye ubuziranenge bwa HPMC, harimo no gutwikira imigambi ya aside, gusesengura amashinga, HPLC, na Ir. Buri buryo bufite ibyiza byayo nibibi kandi birashobora gutorwa ukurikije ibisabwa byihariye. Kugirango ukomeze ubuziranenge bwa HPMC, bigomba kubikwa ahantu humye, ubukonje kure yizuba hamwe nabandi banduye.
Igihe cya nyuma: Kanama-25-2023