Hydroxypropylmethylcellulose (HPMC) yog cov khoom siv dav siv nrog ntau yam kev lag luam, kev lag luam, thiab kev siv kho mob. HPMC yog ib qho tsis muaj ntxhiab, tsis qab, thiab tsis muaj tshuaj lom uas tau los ntawm cellulose. Nws yog ib qho dej-soluble compound siv nyob rau hauv ntau yam khoom noj, tshuaj pleev ib ce, tshuaj, thiab tshuaj. HPMC paub txog nws txoj kev ua yeeb yaj kiab zoo heev, cov khoom nplaum thiab cov dej tuav tau. Nws tseem paub txog nws zoo heev viscosity, stability thiab compatibility nrog ntau yam khoom.
Hom HPMC:
Muaj ntau hom HPMC nyob rau hauv kev ua lag luam, txhua tus muaj lub cev thiab tshuaj lom neeg tshwj xeeb. Nov yog qee hom HPMC:
1. Tsawg viscosity HPMC:
Tsawg viscosity HPMC yog tus cwj pwm los ntawm qhov hnyav molecular thiab tsis tshua muaj kev hloov pauv. Vim nws txoj kev khi zoo heev, nws feem ntau yog siv los ua cov ntawv khi thiab disintegrant hauv cov ntsiav tshuaj.
2. Medium viscosity HPMC:
Nruab nrab viscosity HPMC muaj qhov hnyav nruab nrab molecular thiab qib hloov pauv. Nws yog feem ntau siv los ua kom ruaj khov emulsions, tshem tawm thiab foams hauv kev lag luam zaub mov thiab dej haus.
3. High viscosity HPMC:
High viscosity HPMC yog tus cwj pwm los ntawm qhov hnyav molecular thiab qib siab hloov pauv. Nws yog feem ntau siv los ua cov thickener thiab gelling tus neeg sawv cev hauv cov khoom noj thiab tshuaj pleev ib ce.
4. Kev kho saum npoo HPMC:
Nto kho HPMC yog kho nrog ntau yam tshuaj los hloov nws cov khoom nto. Nws yog feem ntau siv los ua ib qho ntxiv hauv kev tsim kho kev lag luam los txhim kho cov khoom ntawm cov khoom siv cement.
Qhov zoo ntawm HPMC:
HPMC coj ntau yam txiaj ntsig rau ntau yam kev lag luam. Nov yog qee qhov txiaj ntsig zoo ntawm HPMC:
1. Muaj kev nyab xeeb thiab tsis muaj tshuaj lom:
Ib qho txiaj ntsig tseem ceeb ntawm HPMC yog nws txoj kev nyab xeeb thiab tsis muaj tshuaj lom. HPMC yog muab los ntawm cellulose, ib tug natural compound. Nws kuj tseem tsis ua rau tawv nqaij, qhov muag thiab cov mucous daim nyias nyias, ua rau nws muaj kev nyab xeeb ntawm ntau yam khoom.
2. Dej solubility:
HPMC yog cov dej soluble heev, ua rau nws muaj cov khoom muaj txiaj ntsig zoo rau ntau yam khoom uas xav tau dej tuav thiab adhesion. Nws yog feem ntau siv los ua ib qho kev sib khi thiab disintegrant hauv cov khoom noj thiab tshuaj lag luam.
3. Film-forming peev xwm:
HPMC muaj peev xwm tsim cov yeeb yaj kiab zoo heev, ua rau nws muaj cov khoom zoo heev rau ntau yam khoom uas xav tau cov txheej txheem tiv thaiv. Nws yog feem ntau siv hauv kev lag luam kws tshuaj rau txheej ntsiav tshuaj thiab tshuaj ntsiav.
4. Viscosity thiab thickening zog:
HPMC muaj viscosity zoo heev thiab thickening zog, ua rau nws yog ib qho zoo heev muaj nyob rau hauv ntau yam khoom uas yuav tsum tau ib tug tuab, du zoo nkauj. Nws yog feem ntau siv nyob rau hauv cov zaub mov thiab tshuaj pleev ib ce industries kom thicken sauces thiab lotions.
5. Stability thiab compatibility:
HPMC muaj kev ruaj ntseg zoo thiab kev sib raug zoo nrog ntau yam khoom, ua rau nws muaj cov khoom zoo heev hauv ntau yam khoom uas xav tau kev ruaj ntseg thiab kev sib raug zoo. Nws yog feem ntau siv nyob rau hauv kev lag luam kws tshuaj kom stabilize tshuaj formulations.
HPMC yog cov khoom siv ntau yam uas coj tau ntau yam txiaj ntsig rau ntau yam kev lag luam suav nrog zaub mov, tshuaj pleev ib ce thiab tshuaj. Nws cov khoom tshwj xeeb lub cev thiab tshuaj lom neeg ua rau nws muaj txiaj ntsig zoo hauv ntau yam khoom, suav nrog cov khoom sib txuas, cov khoom sib cais, emulsions, tshem tawm cov neeg ua haujlwm, foams, thickeners, gelling agents, thiab zaj duab xis qub. HPMC tseem muaj kev nyab xeeb thiab tsis muaj tshuaj lom, ua rau nws muaj cov khoom zoo heev hauv ntau yam khoom uas xav tau kev nyab xeeb thiab tsis muaj tshuaj lom. Ntau hom HPMC muaj nyob rau hauv kev ua lag luam muab ntau yam kev lag luam nrog ntau yam kev xaiv los xaiv raws li lawv cov kev xav tau tshwj xeeb thiab cov kev xav tau.
Post lub sij hawm: Sep-13-2023