Leej twg yog tus tsim khoom ntawm hypromellose?

Kima Chemical muaj ntau yam khoom hypromellose kom tau raws li qhov xav tau ntawm ntau daim ntawv thov. Lub tuam txhab cov khoom hypromellose muaj nyob rau hauv cov qib viscosity sib txawv thiab qib kev hloov pauv (DS), nrog rau cov qauv tsim kho kom tau raws li cov neeg siv khoom tshwj xeeb.

Kima Chemical cov khoom siv hypromellose yog tsim los siv cov cuab yeej siv ntau lawm thiab kev tswj xyuas nruj kom ntseeg tau tias qhov zoo thiab ua haujlwm tau zoo. Lub tuam txhab cov khoom hypromellose kuj tau ua raws li ntau yam kev cai thoob ntiaj teb, suav nrog USP, EP, JP, thiab FCC.

Hypromellose yog ntau yam polymer uas siv nyob rau hauv ntau yam kev lag luam. Kima Chemical yog ib lub chaw tsim khoom ntawm hypromellose, muab ntau qib thiab cov lus qhia tshwj xeeb kom tau raws li qhov xav tau ntawm ntau yam kev siv. Kima Chemical cov khoom siv hypromellose yog tsim los siv cov cuab yeej siv ntau lawm thiab kev tswj xyuas nruj kom ntseeg tau tias qhov zoo thiab ua haujlwm tau zoo. Nrog nws cov khoom zoo heev thiab ntau yam kev siv, hypromellose yog cov khoom muaj txiaj ntsig zoo hauv ntau cov khoom lag luam thiab kev lag luam.

Hypromellose, tseem hu ua hydroxypropyl methylcellulose (HPMC), yog ib tug semi-synthetic polymer uas yog siv nyob rau hauv ntau yam kev lag luam. Nws yog tsim los ntawm chemically modifying cellulose, ib tug natural polymer pom nyob rau hauv cov nroj tsuag. Hypromellose feem ntau yog siv los ua cov thickener, emulsifier, thiab stabilizer nyob rau hauv cov khoom noj khoom haus, thiab raws li ib tug binder, zaj duab xis-yav dhau los, thiab roj nplua nyeem nyob rau hauv cov tshuaj kev lag luam. Kima Chemical yog ib lub chaw tsim khoom ntawm hypromellose, muab ntau qib thiab cov lus qhia tshwj xeeb kom tau raws li qhov xav tau ntawm ntau yam kev siv.

Chemical Structure ntawm Hypromellose

Hypromelloseyog ib qho dej-soluble polymer uas tau los ntawm cellulose. Nws yog tsim los ntawm reacting cellulose nrog propylene oxide thiab methyl chloride. Cov txiaj ntsig polymer muaj qhov hnyav molecular ntau ntawm 10,000 txog 1,000,000 Daltons, nyob ntawm qhov kev hloov pauv (DS) thiab qib viscosity.

Cov qauv tshuaj ntawm hypromellose muaj cov pob txha cellulose nrog hydroxypropyl thiab methyl pawg txuas mus rau cov chav tsev anhydroglucose. Qhov degree ntawm kev hloov pauv (DS) yog hais txog qhov nruab nrab ntawm cov hydroxypropyl thiab methyl pawg hauv ib chav tsev anhydroglucose. DS tuaj yeem nyob ntawm 0.1 txog 2.5, nyob ntawm seb cov khoom xav tau ntawm hypromellose.

Cov txiaj ntsig ntawm Hypromellose

Hypromellose yog cov hmoov dawb mus rau dawb uas tsis muaj ntxhiab thiab tsis qab. Nws yog soluble hauv dej thiab ntau cov kuab tshuaj organic, tab sis nws yog insoluble nyob rau hauv feem ntau nonpolar cov kuab tshuaj. Hypromellose muaj viscosity siab nyob rau hauv tsawg concentrations, uas ua rau nws ib tug zoo thickener thiab binder. Nws kuj muaj cov cuab yeej ua yeeb yaj kiab zoo heev, uas ua rau nws muaj txiaj ntsig zoo hauv kev tsim cov coatings thiab cov yeeb yaj kiab.

Cov khoom ntawm hypromellose nyob ntawm qhov kev hloov pauv (DS) thiab qib viscosity. Cov qib DS siab dua muaj cov dej solubility ntau dua thiab qis dua gelation, thaum cov qib DS qis dua muaj qhov kub thiab txias dua thiab thermal stability zoo dua. Qib viscosity txiav txim siab qhov tuab ntawm cov tshuaj hypromellose thiab nws lub peev xwm los tsim cov gels.

Kev siv ntawm Hypromellose

Hypromellose yog siv nyob rau hauv ntau yam kev lag luam, nrog rau cov khoom noj, tshuaj, tshuaj pleev ib ce, thiab kev tsim kho. Hauv kev lag luam khoom noj khoom haus, hypromellose yog siv los ua cov thickener, emulsifier, thiab stabilizer nyob rau hauv ntau yam khoom, xws li ice cream, sauces, thiab ci khoom. Hauv kev lag luam kws tshuaj, hypromellose yog siv los ua ib daim ntawv khi, zaj duab xis-yav dhau los, thiab roj nplua nyeem hauv cov ntsiav tshuaj, tshuaj ntsiav, thiab tshuaj pleev. Nws kuj yog siv los ua tus neeg sawv cev txheej hauv kev tswj-tso formulations.

Hauv kev lag luam tshuaj pleev ib ce, hypromellose yog siv los ua cov thickener, emulsifier, thiab zaj duab xis-yav dhau los hauv cov tshuaj pleev ib ce, cream, thiab pleev cov khoom. Hauv kev tsim kho kev lag luam, hypromellose yog siv los ua cov thickener thiab khi hauv cov khoom siv cement, xws li mortars thiab grouts.