Qhov txawv ntawm instant hypromellose thiab kub soluble hypromellose

Tam sim no, hydroxypropyl methylcellulose nyob rau hauv lub lag luam hauv domestic feem ntau yog muab faib ua kub-dissolving hom (tseem hu ua slow-dissolving type) thiab instant-dissolving hom, thiab cov kub-dissolving hom kuj yog cov pa thiab feem ntau siv hom cellulose.

Hot-melt (slow-melt) hydroxypropyl methylcellulose HPMC tsis tau kho nrog glyoxal.Yog hais tias tus nqi ntawm glyoxal loj, qhov dispersion yuav ceev, tab sis lub viscosity yuav nce maj mam, thiab yog hais tias tus nqi yog me me, qhov opposite yuav muaj tseeb.Hydroxypropyl methylcellulose HPMC yuav clump ua ke thaum nws ntsib dej txias (tab sis qhov xwm txheej no kuj yuav maj mam yaj, tab sis nws yuav siv sij hawm ntev.), tab sis nws yuav sai sai diffuse nyob rau hauv dej nyob rau hauv dej kub kom txog thaum nws ploj tag nrho nyob rau hauv dej, thiab nws viscosity nce. maj mam thaum qhov kub thiab txias me ntsis kom txog thaum nws dhau los ua cov kua nplaum pob tshab.Nws qhov tshwm sim clumping zoo ib yam li kev sib cais ntawm high-viscosity sodium carboxymethyl cellulose.Thaum cov hmoov cellulose sab nraum cov dej dissolves, nws ua nkig, thiab tom qab ntawd qhwv cov cellulose hauv uas tsis tau kov cov dej, tab sis qhov xwm txheej no kuj yuav maj mam yaj, tab sis nws yuav siv sij hawm ntev.

Instant-type hydroxypropyl methylcellulose HPMC yog nto-kho nrog glyoxal.Nws disperses sai sai nyob rau hauv dej txias, tab sis nws yeej tsis yaj.Nws yuav siv sij hawm rau nws viscosity nce, vim hais tias nws tsuas yog diffuses hauv dej thaum ntxov, uas tsis yog qhov tseem ceeb.Rau qhov kev sib cais saum toj no, viscosity nce mus txog tus nqi siab tshaj plaws hauv li plaub caug feeb.Thaum cov viscosity nce, cov tshuaj aqueous ua kom pom tseeb thiab pob tshab, uas yog qhov sib cais tiag tiag.Instant-type hydroxypropyl methylcellulose HPMC yog siv rau hauv ib qho kev lag luam tshwj xeeb thiab yuav tsis tov nrog cov hmoov qhuav, los yog thaum nws yuav tsum tau yaj thiab dej kub tsis tuaj yeem siv vim cov khoom siv thiab lwm yam laj thawj, instant-type hypromellose Cellulose-based solution rau tej teeb meem nyuaj.