HydroxyPropyl cellulose (HPC) yog qhov siv tau dav hauv cov chaw muag tshuaj muaj ntau yam ntawm cov khoom muaj nuj nqi. Nws yog tsuas yog siv nyob rau hauv kev npaj khoom xws li cov ntsiav tshuaj thiab tsiav tshuaj. Raws li ib nrab hluavtaws cellulose cellulose cellulose, HPC yog tsim los ntawm kev qhia txog cov qauv molroulropyl, uas ua rau cov khoom siv hluav taws xob molroxular, ua rau nws versatile hauv ntsiav tshuaj.
1. Thickeners thiab binders
HPC, raws li cov tuab thiab tuav, tuaj yeem pab cov lus cog lus thiab daim ntawv thaum lub sijhawm ua cov ntsiav tshuaj ntub dej ntawm cov ntsiav tshuaj ntau lawm. Nws muaj cov nplaum nplaum muaj zog thiab muaj peev xwm ua tau zoo cov hmoov nplej ua ke los ntawm cov khoom ntub dej nrog cov nplais nrog cov cua zoo thiab kev hloov kho tshiab. Cov lus no yooj yim rau daim ntawv thiab muaj cov ntsiav tshuaj zoo thaum lub sij hawm, ua rau cov ntsiav tshuaj zoo. Hauv cov txheej txheem npaj npaj ntsiav tshuaj, ntxiv rau ntawm kev sib ntxiv tuaj yeem ua kom ntseeg tau lub hardness, tsis kam mus crushing thiab qis brittleness ntawm cov ntsiav tshuaj.
2. Tshuaj Tso Tawm Tso Cai
Cov tswj kev tso tawm nyhuv ntawm HPC hauv cov ntsiav tshuaj yog ib qho ntawm nws cov ntawv thov tseem ceeb tshaj plaws. Vim nws o thiab viscosity cov khoom hauv dej, HPC tuaj yeem tsim cov yeeb yaj kiab hydration nyob rau saum npoo ntawm cov tshuaj, yog li ua tiav cov nyhuv ntawm kev ncua kev tso yeeb. Hauv cov tshuaj tswj-tso tawm, HPC tuaj yeem hloov kho cov tshuaj tso tawm los ntawm kev ua haujlwm ntawm cov tshuaj, xws li kev coj ua tshuaj ntawm cov tshuaj, thiab txhim kho cov neeg mob kev ua raws. Nws cov hydration txheej maj mam ploj zuj zus, thiab cov tshuaj tso tawm Yeeb Nkab, ua rau nws muaj cov kev cia siab ua tau zoo hauv kev tso tawm cov ntsiav tshuaj-tso tawm.
3. Zaj duab xis-ua tus neeg sawv cev
HPC zaj duab xis-tsim cov khoom ua rau nws dav siv nyob rau hauv cov ntsiav tshuaj pleev xim, tshwj xeeb tshaj yog cov khoom siv-soluble txheej. Txheej cov ntsiav tshuaj saum npoo nrog HPC zaj yeeb yaj kiab tuaj yeem tsim cov tshuaj nyias thiab nruj heev, tab sis kuj tiv thaiv cov tshuaj thiab ua kom muaj kev ruaj ntseg ntawm cov tshuaj. Vim tias HPC muaj qhov zoo pob tshab thiab hloov tau, cov yeeb yaj kiab nws cov ntaub ntawv yog cov khaub ncaws hnav thiab du, thiab muaj cov xwm txheej me me rau cov tsos ntawm cov ntsiav tshuaj. Tsis tas li ntawd, HPC zaj duab xis muaj solubility zoo nyob rau hauv lub plab zom mov nyob rau hauv lub plab zom mov thiab yuav tsis muaj kev cuam tshuam tsis zoo ntawm cov tshuaj.
4. Stabilizer
Cov nyhuv tiv thaiv HPC kuj tseem ceeb heev hauv kev siv cov ntsiav tshuaj, tshwj xeeb tshaj yog rau cov tshuaj uas rhiab rau lub teeb thiab av noo. HPC muaj peev xwm ua tau zoo cais cov huab cua thiab ya raws, thiab tiv thaiv cov tshuaj los ntawm kev cuam tshuam oxidating lossis oxidative vim tias noo noo. Tshwj xeeb tshaj yog thaum cov ntsiav tshuaj txheej npaj tau npaj rau hauv Organic kev tawm tsam ntawm HPC tiv thaiv nws cov tshuaj tiv thaiv kev ruaj khov, yog ua kom muaj lub neej ruaj ntseg thiab txee rau ntawm cov tshuaj.
5. Raug Ntaus
Txawm hais tias HPC feem ntau yog siv los ua tus tswj hwm kev tso tawm, nws kuj tseem siv tau ua tus tsis muaj kev ua txhaum hauv qee cov tshuaj tam sim ntawd. Tsawg-viscosity HPC tuaj yeem ua kom sai sai ploj thiab swedoting nrog cov ntsiav tshuaj, ua rau cov tshuaj tsis tu ncua thiab kev nqus ntawm cov tshuaj nyob rau hauv lub plab zom mov. Daim ntawv thov no yog tsim rau qee cov tshuaj uas yuav tsum tau siv cov nyhuv sai. HPC tuaj yeem ua tiav cov yam ntxwv sib txawv hauv cov ntaub ntawv sib txawv los ntawm kev kho nws qhov hnyav molecular, ntxiv qhov nqi thiab lwm yam kev ua kom zoo.
6. Cov ntawv thov hauv cov ntsiav tshuaj fintegrating
Cov dej solubility thiab viscosity ntawm HPC kuj pom zoo cuam tshuam hauv kev sib raug zoo hauv kev sib cais (ODT). Hauv cov ntsiav tshuaj no, HPC tuaj yeem txhim kho txoj kev xaus ntawm cov ntsiav tshuaj hauv qhov ncauj, ua rau nws mob siab dua, tshwj xeeb, kom nqos. Cov dej ua kua ntawm HPC ua rau nws yaj thiab tsis sib xws hauv lub sijhawm luv, thaum txwv tsis pub ua kom tawg thaum lub sijhawm ua khoom thiab chaw cia khoom.
7. Syergy nrog rau lwm yam kev zam
HPC kuj muaj qhov zoo zam tau zoo nyob rau hauv cov ntsiav tshuaj ua qauv thiab tuaj yeem syserging nrog rau lwm yam kev ua kom muaj micbrotalline, xws li micbiymethyl cellulose, thiab lwm yam) txhawm rau txhim kho cov ntsiav tshuaj. Piv txwv li, thaum siv hauv kev sib xyaw ua ke nrog microcrystalline cellulose, HPC tuaj yeem txhim kho cov ntsiav tshuaj thiab kev sib txuam ntawm cov ntsiav tshuaj thaum ua kom muaj kev tawv tawv ntawm cov ntsiav tshuaj; Thaum siv ua ke nrog lwm cov nplaum, nws tuaj yeem txhawb nqa cov nplaum ntawm cov ntsiav tshuaj, txhim kho cov granulation zoo thiab zaws moulding effect.
8. Txom Rau Cov Lus Qhia thiab Kev Txwv
Txawm hais tias HPC muaj ntau yam zoo hauv cov ntsiav tshuaj, nws siv cov nyhuv tseem cuam tshuam los ntawm HPC, ntau dua li cov viscosity, thiab muaj zog dua lub peev xwm los tswj lub tus nqi tso yeeb tshuaj; Nyob rau tib lub sijhawm, cov av noo ntau zaus yuav ua rau cov ntsiav tshuaj kom nqus dej noo, cuam tshuam nws ruaj ntseg. Yog li ntawd, thaum siv HPC, nws yog qhov tsim nyog xaiv cov tsis tsim nyog los xyuas kom meej qhov zoo tshaj plaws hauv cov ntsiav tshuaj tsim.
Hydroxypropyl cellulose muaj ntau lub zog nyob rau hauv cov ntsiav tshuaj hauv cov ntaub ntawv tuab, duab qhia, uas tuaj yeem txhim kho cov ntsiav tshuaj thiab kev tso tshuaj yeeb tshuaj. Raws li cov yeeb tshuaj tshwj xeeb thiab cov qauv tsim, muaj kev sib txawv ntawm HPC tuaj yeem hloov kho lub viscosity, ua kom nws muaj cov ntawv thov tseem ceeb hauv kev lag luam kws tshuaj.
Lub sijhawm Post: NOV-04-2024