4 Ibikorwa Byibanze byubuhanga nuburyo bwa HPMC, Ntucikwe!

Hydroxypropyl methylcellulose (HPMC) ni polymer itandukanye ikoreshwa cyane mu nganda zitandukanye, harimo ubwubatsi, imiti, n'inganda. HPMC ikorwa hifashishijwe ikoranabuhanga ritandukanye ribyara umusaruro, ukurikije porogaramu igenewe. Muri iki kiganiro, tuzasesengura uburyo bune bwibanze bwo gukora nuburyo bwa HPMC utagomba kubura.

1. Ikoranabuhanga rya Etherification Ikoranabuhanga rya etherification nubuhanga bukoreshwa cyane muri HPMC. Muri ubu buryo, selile ivurwa na alkali, nka sodium hydroxide, kugirango ikore selile. Alkali selulose noneho ikorwa na oxyde ya propylene na methyl chloride kugirango ikore HPMC. Urwego rwo gusimbuza (DS) rwa HPMC rushobora kugenzurwa no guhindura igipimo cya oxyde ya propylene na methyl chloride mugihe cyo kubyitwaramo.

Inzira ya HPMC yakozwe ikoresheje tekinoroji ya etherification ni:

Cellulose + Alkali → Alkali Cellulose Alkali Cellulose + Oxide ya Propylene + Methyl Chloride → HPMC

2. Ikariso yumye ya tekinoroji yo kumisha spray nubuhanga bugezweho bwo gukora HPMC. Muri ubu buryo, selile irashonga mumuti wa alkali hanyuma igahita ikorwa na oxyde ya propylene na methyl chloride. Igisubizo cya HPMC noneho gitera spray yumye kugirango itange ifu ya HPMC.

Inzira ya HPMC yakozwe ikoresheje tekinoroji yo kumisha spray ni:

Cellulose + Alkali → Alkali Cellulose Alkali Cellulose + Propylene Oxide + Methyl Chloride → Umuti wa HPMC HPMC Umuti + Gusasa Kuma → Ifu ya HPMC

3. Ikoreshwa rya tekinoroji ya polimerisiyoneri Ihagarikwa rya tekinoroji ya polymerisiyasi nubundi buryo bwo gukora HPMC. Muri ubu buryo, selile ihagarikwa mumashanyarazi hanyuma igahita ikorwa na oxyde ya propylene na methyl chloride imbere yabatangije polymerisation kugirango HPMC ibe.

Inzira ya HPMC yakozwe ikoresheje tekinoroji yo guhagarika polymerisation ni:

Cellulose + Solvent + Initiateur Polymerisation → Guhagarika Cellulose Guhagarika Cellulose Guhagarika + Oxide ya Propylene + Methyl Chloride → HPMC

4. Ikorana buhanga rya Polymerisiyonike Igisubizo Ikoranabuhanga rya polymerisiyonike nubuhanga bushya bwo gukora umusaruro kuri HPMC. Muri ubu buryo, selile irashonga mumashanyarazi hanyuma igahita ikorwa na okiside ya propylene na methyl chloride imbere yabatangije polymerisation kugirango babe HPMC.

Inzira ya HPMC yakozwe hakoreshejwe tekinoroji ya polymerisation ni:

Cellulose + Solvent + Initiateur Polymerisation → Umuti wa Cellulose Umuti wa Cellulose + Oxide ya Propylene + Methyl Chloride → HPMC

Mu gusoza, HPMC ni polymer itandukanye ikorwa hifashishijwe ikoranabuhanga ritandukanye ribyara umusaruro, bitewe nibisabwa. Tekinoroji enye yibanze yumusaruro hamwe na formula ya HPMC harimo tekinoroji ya etherification, tekinoroji yo kumisha spray, tekinoroji yo guhagarika polymerisation, hamwe na tekinoroji ya polymerisation. Gusobanukirwa ikorana buhanga hamwe na formula ya HPMC birashobora gufasha ababikora guhitamo ibicuruzwa byiza bya HPMC kubikorwa byabo byihariye.