HydroxyPropyl methylcellse (HPMC) ni umubyingenzi wa selile ya kaliki yakoreshejwe cyane mu mirima myinshi yinganda kubera imitungo idasanzwe yumubiri na shimi. Ibyiza byayo byagaragaye ni kimwe mu bintu by'ingenzi bya HPMC, bigira ingaruka mu buryo butaziguye imikorere yayo mu manza zitandukanye.
1. Imiterere y'ibanze ya HPMC
HPMC ni ether ya selile yabonetse mugusimbuza igice cyamatsinda ya hydroxyl (-Oh) muri molekile ya selile hamwe na memoxy. Ifite ibibazo byiza mumazi hamwe na kama ukabije, gushiraho ibintu bisobanutse bya Colloidal. Ibyatsi bya HPMC bigenwa ahanini nuburemere bwayo, urwego rwo gusimbuza (DS, urwego rwo gusimbuza) no gukwirakwiza isi.
2. Kugena visosity ya HPMC
Ubukwe bwibisubizo bya HPMC mubisanzwe bipimwa ukoresheje vicometer izunguruka cyangwa capillary vicometer. Mugihe upima, hagomba kwitabwaho kugirango wishyure kwibanda, ubushyuhe nigituba cyumuti wigisubizo, kuko ibyo bintu bishobora kugira ingaruka ku buryo bugaragara agaciro.
Igisubizo Cyimico: Urubyiruko rwa HPMC rwiyongera hamwe no kongera igisubizo. Iyo kwibanda kubisubizo bya HPMC biri hasi, imikoranire iri hagati ya molekile ifite intege nke kandi viscosity iri hasi. Mugihe kwibanda kwiyongera, kwishora hamwe nubufatanye hagati ya molekiri byiyongera, bigatera ubwiyongere bukomeye muri vino.
Ubushyuhe: Viscozetity yo ibisubizo bya HPMC yunvikana cyane ubushyuhe. Mubisanzwe, uko ubushyuhe bwiyongera, viscosiya igisubizo cya HPMC kizagabanuka. Ibi biterwa nubushyuhe buganisha ku kwiyongera kwa molekile kandi bagabana imikoranire yimikorere. Twabibutsa ko HPMC ifite impamyabumenyi zitandukanye zo gusimbuza nuburemere bwa molekile bifite ibitekerezo bitandukanye kubushyuhe.
Igipimo cyo gusigayo: Ibisubizo bya HPMC byerekana imyitwarire ya pseudoplastique (inanga yoroheje), ni ukuvuga uruzinduko ruri hejuru cyane ku giciro cy'iminsi no kugabanuka ku giciro cy'iminsi mike. Iyi myitwarire iterwa n'imbaraga zo gukomera guhuza iminyururu ya moleculari ku cyerekezo cy'amasako, bityo bikagabanya inleinglement n'imikoranire hagati ya molekile.
3. Ibintu bigira ingaruka kuri vicosity ya HPMC
Uburemere bwa molekile: Uburemere bwa moleclar ya HPMC nimwe mubintu byingenzi byerekana urujijo rwayo. Muri rusange, ingano nini yuburemere bwa molekile, hejuru ya virusire yigisubizo. Ni ukubera ko molekile ya hpmc ifite uburemere bwinshi bushobora gukora imiyoboro yiziritseho, bityo yongera guterana kwimbere.
Urwego rwo gusimbuza no gukwirakwiza mukwirakwiza: Umubare no gukwirakwiza uburyo na hydroxyPropyl muri HPMC bigira ingaruka kuri viscosity. Mubisanzwe, urwego rwo hejuru rwubu buryo (DS), hepfo visosity ya HPMC, kuko gutangiza uburyo bizagabanya imbaraga zimitako iri hagati ya molekile. Kumenyekanisha hydroxyproyl eydroxppeexexyl bizongera imikoranire yimikorere, bityo yongera viscosiya. Byongeye kandi, isaranganya rimwe zisimbuye rifasha gukora sisitemu ihamye kandi yongera viscosiya.
PH agaciro k'igisubizo: Nubwo HPMC ari polymer itari polymer hamwe na visosity ntabwo yunvikana ku giciro cya PH agaciro, indangagaciro zikabije (acide cyane cyangwa alkaline cyane cyangwa alkaline cyane cyangwa alkaline cyane cyangwa alkaline cyane HPMC, rero igira ingaruka kuri viscosiya.
4. Gusaba imirima ya HPMC
Bitewe nuburyo bwiza bwo kwerekana ibintu, HPMC ikoreshwa cyane mumirima myinshi:
Ibikoresho byo kubaka: Mu bikoresho byo kubaka, HPMC ikoreshwa nk'uburebure n'amazi agumana umukozi wo kuzamura imikorere yubwubatsi no kongera indwara ya crack.
Inganda za farumasi: Mu nganda za farumasi, HPMC ikoreshwa nka fagitire kubinini, umukozi ushinga filime kuri capsules hamwe nuwitwara kubiyobyabwenge byakomeje.
Inganda zibiribwa: HPMC ikoreshwa nkuwabyimbye kandi uhagaze mu nganda zibiribwa kugirango umusaruro wa ice cream, ibikomoka kuri jelly namata.
Ibicuruzwa bya buri munsi: Mubicuruzwa bya buri munsi, HPMC ikoreshwa nkuwabyimbye kandi stabilizer kugirango umusaruro wa Shampoo, Gel, amenyo, nibindi.
Ibiranga viscosity bya HPMC nibyo shingiro ryimikorere myiza yabyo muburyo butandukanye. Mugucunga uburemere bwa molekile, urwego rwo gusimbuza, hamwe nigisubizo cya HPMC, ubushyuhe bwayo burashobora guhinduka kugirango bubahirize ibikenewe bitandukanye. Mu bihe biri imbere, ubushakashatsi bwimbitse ku mibanire iri hagati y'imiterere ya HPMC izafasha guteza imbere ibicuruzwa bya HPMC bifite imikorere myiza kandi bikomeza kwagura imirima ya porogaramu.
Igihe cyo kohereza: Jul-20-2024