Qhov sib txawv ntawm hydroxypropyl methylcellulose thiab hydroxyethyl cellulose

HydroxyPropyyl Methylcellulose (HPMC)thiabHydroxyethyl cellulose (HEC)yog ob feem ntau siv cellulose derivatives. Lawv tau siv dav siv hauv kev tsim kho, cov tshuaj tshuaj, tshuaj pleev ib ce, khoom noj thiab lwm yam kev lag luam vim lawv cov khoom ntiag tug thiab siv. Txawm hais tias lawv yog ob qho tib si dej-soluble cov ntaub ntawv muab tau los ntawm cov xov tooj ntawm ntuj, muaj qhov sib txawv ntawm ob leeg hauv cov qauv tshuaj, kev ua tau zoo thiab cov ntawv thov.

1. Qhov sib txawv hauv cov qauv tshuaj

HPMC (HydroxyPropyyl methylcellulose)

Nws yog ib qho tsis-ionic cellulose cellulose ether tau los ntawm reacting cellulose nrog tshuaj methanol thiab propylene oxide tom qab alkalization. Nws cov qauv molecular muaj methoxy (-och3) thiab hydroxyprropoxy (-ch2chohch3) hloov chaw. Cov degree ntawm HPMC tuaj yeem hloov kho raws li kev siv sib txawv.

HEC (Hydroxyethyl cellulose)

Nws yog cov khoom lag luam tau los ntawm Ehereification cov tshuaj tiv thaiv ntawm cov cellulge nrog ethylene oxide tom qab qauv molroxyethyl (-ch2ch2oh) chaw hloov. HEC yog cov dej tsis-ionic-soluble cellulose ether, thiab nws cov kev kawm tiav kuj tseem tuaj yeem hloov kho raws li cov kev xav tau.

2. Kev ua tau zoo sib txawv

So

Kimacell® Tus neeg tuaj yeem ua rau cov dej txias los ua cov pa lossis cov tshuaj pleev xim tsis huv, uas tiv thaiv kom sov siab. Nws muaj ntsev zoo thiab alkali tsis kam thiab tuaj yeem muaj nyob hauv cov dav dav (3-11).

Kimacell®c kuj yog soluble hauv dej txias, tab sis kev sib cais yog qeeb, thiab qhov ruaj khov nyob rau hauv qhov kub siab lossis qib ntsev tsis zoo. Tsis tas li ntawd, HEC yog tsawg rhiab rau PH thiab tuaj yeem siv hauv Ph Yeej ntawm 2-12.

Thickening nyhuv

HPMC muaj cov nyhuv tuab tuab tuab thiab muaj cov dej kom zoo thiab ruaj khov.

HEC tseem muaj cov nyhuv zoo heev, tab sis nws viscosity tau cuam tshuam heev los ntawm cov shear tus nqi thiab qhia shear uas muaj cov yam ntxwv.

Nto Ua Si

HPMC muaj qee qhov kev ua si saum npoo av thiab tuaj yeem tsim cov emulsification zoo thiab ua yeeb yaj kiab ua yeeb yam.

HEC muaj cov khoom ua si tsawg thiab tsis muaj qhov pom tseeb emulsification, tab sis muaj cov khoom siv ua yeeb yaj kiab zoo.

3. Daim ntawv thov sib txawv

Siv teb

HPMC tau siv dav hauv cov ntaub ntawv hauv tsev, xws li hmoov muag, tshuaj khib nyiab, feem ntau yog siv los txhim kho dej khaws cia, tawg kom tsis kam thiab kev tsim kho.

Hec yog feem ntau siv nyob rau hauv looj xim thiab dej pleev xim raws li cov tuab dej thiab stabenilizer kom nce viscosity thiab anti-sagging cov yam ntxwv ntawm cov xim.

Kws Tshuaj

HPMC tsuas yog siv los ua cov khoom siv txheej, tswj cov ntaub ntawv tso tawm thiab capskule plhaub rau cov ntsiav tshuaj hauv cov tshuaj hauv lub chaw muag tshuaj.

HEC yog tsis tshua muaj siv nyob rau hauv cov chaw muag tshuaj tau thiab qee zaum ua ib qho ua kom tuab rau kev siv tshuaj yeeb.

Cov tshuaj pleev ib ce thiab cov khoom siv chemical txhua hnub

HPMC yog siv rau hauv cov khoom tu tawv nqaij thiab tshuaj ntxuav kom muab cov khoom lag luam zoo dua thiab emulsification ruaj khov.

HEC tau dav siv nyob rau hauv zawv zawv plaub hau, da dej gel, thiab lwm yam los muab cov teebmeem tuab thiab raug tshem tawm.

Khoom Noj Khoom Haus

HPMC yog siv los ua cov tuab dua, emulsifier thiab stabilizer nyob rau hauv cov zaub mov thiab yog siv dav hauv jelly, kua txiv thiab khoom ci.

HEC yog tsis tshua siv siv hauv kev lag luam khoom noj khoom haus, tab sis tuaj yeem siv ua cov ntaub tuab hauv cov dej haus thiab cov khoom nyiam.

4. Nqe thiab Khw

HPMC feem ntau kim dua Hec vim nws cov txheej txheem nyuaj thiab ntau ntawm kev siv. Tus txheej txheem ntau lawm yog qhov yooj yim thiab yog siv rau thickening thiab ruaj khov, yog li tus nqi qis.

HydroxyPropyyl methylulose (HPMC) thiab hydroxyethyl cellulose (HEC) txhua tus muaj lawv tus kheej cov qauv tshuaj thiab cov khoom ntiag tug. Kimacell® Tus Tswv Yim Haum rau cov xwm txheej nrog cov kev xav tau siab, muaj cov khoom sib npaug zoo dua thiab ua yeeb yaj kiab ntawm cov ntawv thov. HEC, ntawm qhov tod tes, feem ntau yog siv rau hauv cov tsho tiv no, siv tshuaj txhua hnub thiab lwm yam uas yuav tsum tau siv dua tshiab thiab raug ncua thiab cov nyhuv txo qis. Hauv kev xaiv tiag tiag, muaj kev txiav txim siab kom zoo tshaj plaws yuav tsum tau ua raws li cov kev xav tau ua tau zoo thiab cov nqi nyiaj txiag tshwj xeeb.