Itandukaniro hagati ya hydroxypropyl krahisi na Hydroxypropyl methyl selulose

Hydroxypropyl krah na hydroxypropyl methyl selulose (HPMC) byombi byahinduwe na polysaccharide ikoreshwa mu nganda zitandukanye, harimo ibiryo, imiti, amavuta yo kwisiga, nubwubatsi. Mugihe basangiye bimwe, bafite itandukaniro ritandukanye mubijyanye nimiterere yimiti, imiterere, nibisabwa. Dore itandukaniro nyamukuru hagati ya hydroxypropyl krahisi na HPMC:

Imiterere ya shimi:

1. Hydroxypropyl Starch:
   • Hydroxypropyl ibinyamisogwe ni ibinyamisogwe byahinduwe byabonetse mugutangiza amatsinda ya hydroxypropyl kuri molekile ya krahisi.
   • Ibinyamisogwe ni polysaccharide igizwe na glucose ibice bihujwe hamwe na glycosidic. Hydroxypropylation ikubiyemo gusimbuza amatsinda ya hydroxyl (-OH) muri molekile ya krahisi hamwe na hydroxypropyl (-CH2CHOHCH3).
2. Hydroxypropyl Methyl Cellulose (HPMC):
   • HPMC ni selile yahinduwe ya selile yabonetse mugutangiza hydroxypropyl na methyl matsinda kuri molekile ya selile.
   • Cellulose ni polysaccharide igizwe na glucose ibice bihujwe hamwe na β (1 → 4) glycosidic. Hydroxypropylation itangiza hydroxypropyl (-CH2CHOHCH3), mugihe methylation itangiza amatsinda ya methyl (-CH3) kumugongo wa selile.

Ibyiza:

1. Gukemura:
   • Hydroxypropyl krahisi isanzwe ibora mumazi ashyushye ariko irashobora kwerekana imbaraga nke mumazi akonje.
   • HPMC irashonga mumazi akonje kandi ashyushye, ikora ibisubizo bisobanutse neza. Ubushobozi bwa HPMC buterwa nurwego rwo gusimbuza (DS) nuburemere bwa molekuline ya polymer.
2. Viscosity:
   • Hydroxypropyl krahisi irashobora kwerekana imiterere-yongerera imbaraga, ariko ubusembwa bwayo buri hasi ugereranije na HPMC.
   • HPMC izwiho kubyimbye cyane no guhinduranya ibintu. Ubwiza bwibisubizo bya HPMC burashobora guhinduka muguhindura polymer yibanze, DS, nuburemere bwa molekile.

Porogaramu:

1. Ibiribwa na farumasi:
   • Hydroxypropyl krahisi ikoreshwa cyane mubyimbye, stabilisateur, hamwe na gelling mubicuruzwa byibiribwa nka soup, isosi, nubutayu. Irashobora kandi gukoreshwa muburyo bwo gufata imiti.
   • HPMC ikoreshwa cyane mubiribwa, imiti, no kwisiga nkibyimbye, emulisiferi, stabilisateur, firime yahoze, hamwe nubushakashatsi bugenzurwa. Bikunze kuboneka mubicuruzwa nkibinini, amavuta, amavuta, nibintu byita kumuntu.
2. Ibikoresho byo kubaka no kubaka:
   • HPMC ikoreshwa cyane mubikorwa byubwubatsi nkinyongera mubicuruzwa bishingiye kuri sima nkibikoresho bya tile, minisiteri, imashini, na plastike. Itanga kubika amazi, gukora, gufatira hamwe, no kunoza imikorere muribi bikorwa.

Umwanzuro:

Mugihe hydroxypropyl krahisi na HPMC zahinduwe polysaccharide zifite imikorere isa, zifite imiterere yimiti itandukanye, imiterere, nibisabwa. Hydroxypropyl krahisi ikoreshwa cyane cyane mubiribwa no gukoresha imiti, mugihe HPMC isanga ikoreshwa cyane mubiribwa, imiti, amavuta yo kwisiga, nibikoresho byubaka. Guhitamo hagati ya hydroxypropyl krahisi na HPMC biterwa nibisabwa byihariye bigenewe porogaramu.