Hydroxypropyl methylcellulose (HPMC)yog ntau yam polymer uas feem ntau siv rau ntau yam kev siv, suav nrog tshuaj, khoom noj khoom haus, tshuaj pleev ib ce, thiab kev lag luam siv. Qhov zoo ntawm HPMC tuaj yeem sib txawv nyob ntawm cov yam ntxwv xws li qhov hnyav molecular, viscosity, degree ntawm kev hloov pauv (DS), thiab purity, uas cuam tshuam ncaj qha rau nws cov kev ua tau zoo hauv cov ntawv thov tshwj xeeb.
Cov ntsiab lus tseem ceeb cuam tshuam rau qhov zoo ntawm Hydroxypropyl Methylcellulose
Molecular Luj
Molecular hnyav (MW) yog hais txog qhov loj ntawm AnxinCel®HPMC molecule thiab ua lub luag haujlwm tseem ceeb hauv kev txiav txim siab nws cov viscosity thiab solubility. Lub cev hnyav dua molecular HPMC nyhav kom muaj viscosity ntau dua, uas yog qhov muaj txiaj ntsig zoo hauv cov ntawv thov xws li tshuaj tso tawm lossis ua tus neeg sawv cev thickening hauv ntau cov qauv.
Tsawg Molecular Luj (LMW): Kev tawg sai sai, qis viscosity, tsim nyog rau cov ntawv thov xws li txheej txheej thiab zaj duab xis-tsim.
High Molecular Luj (HMW): Tsawg dissolution, viscosity ntau dua, haum rau thickening, gelling, thiab tswj cov tshuaj tso tawm tshuab.
Degree of Hloov (DS)
Qib ntawm kev hloov pauv yog hais txog qhov twg cov pab pawg hydroxyl ntawm cov pob txha cellulose tau hloov los ntawm methyl thiab hydroxypropyl pawg. Qhov zoo tshaj plaws no cuam tshuam rau solubility thiab rheological zog ntawm cov polymer.
Low DS: Txo dej solubility, siab zog gel.
Siab DS: Ua kom dej solubility, txo cov gel zog, thiab tswj kev tso tawm zoo dua hauv cov tshuaj.
viscosity
Viscosity yog ib qho tseem ceeb hauv kev txiav txim siab seb HPMC tuaj yeem ua tau zoo npaum li cas hauv kev ua kom tuab, ruaj khov, thiab gelling daim ntawv thov. High viscosity HPMC yog siv rau hauv daim ntawv thov xws li emulsions, ncua kev kawm ntawv, thiab hydrogels, thaum qis viscosity qib yog zoo tagnrho rau cov zaub mov thiab tshuaj formulations.
Tsawg viscosity: Feem ntau yog siv rau hauv cov khoom noj, kev saib xyuas tus kheej, thiab cov khoom siv tshuaj rau kev tsim cov yeeb yaj kiab thiab khi.
Siab viscosity: Siv nyob rau hauv cov tshuaj tswj-tso formulations, high-strength gels, thiab ua thickeners nyob rau hauv industrial cov khoom.
Purity
Qib ntawm impurities, xws li cov kuab tshuaj seem, cov ntsev inorganic, thiab lwm yam kab mob, tuaj yeem cuam tshuam rau kev ua haujlwm ntawm AnxinCel®HPMC. Cov qib purity siab dua feem ntau xav tau hauv kev siv tshuaj thiab khoom noj.
Pharmaceutical Qib: Ntau dua purity, feem ntau nrog kev tswj nruj dua ntawm cov kuab tshuaj seem thiab cov khoom paug.
Qib Industrial: Tsawg purity, siv tau rau kev siv tsis siv lossis tsis siv tshuaj kho.
Solubility
Lub solubility ntawm HPMC nyob rau hauv dej nyob ntawm ob qho tib si nws qhov hnyav molecular thiab qib ntawm kev hloov. Feem ntau, HPMC yog soluble hauv dej txias, ua rau nws yog ib qho kev xaiv zoo tshaj plaws rau ntau yam kev siv uas yuav tsum tau muaj dej-raws li formulations.
Tsawg Solubility: Tsawg soluble, siv rau kev tswj-tso tshuab.
Siab Solubility: Ntau dua soluble, zoo tagnrho rau cov ntawv thov uas xav tau sai sai.
Thermal stability
Lub thermal stability ntawm HPMC yog qhov tseem ceeb, tshwj xeeb tshaj yog nyob rau hauv kev lag luam uas koom nrog kev ua haujlwm ntawm qhov kub thiab txias. Cov thermal stability siab dua tuaj yeem yog qhov tseem ceeb hauv cov ntawv thov xws li cov ntsiav tshuaj txheej thiab hauv kev lag luam khoom noj.
Gel zog
Gel zog yog hais txog lub peev xwm ntawm HPMC los tsim ib lub gel thaum tov nrog dej. Lub zog gel siab dua yog xav tau hauv daim ntawv thov xws li kev tswj hwm-tso tshuaj xa cov tshuab, thiab lub zog gel tsis tshua muaj feem ntau nyiam hauv cov ntawv thov xws li kev ncua thiab emulsions.
Cov lus sib piv: Cov yam ntxwv zoo ntawm Hydroxypropyl Methylcellulose
| Qhov xwm txheej | Tsis zoo HPMC | High Quality HPMC | Kev cuam tshuam rau kev ua haujlwm |
| Molecular Luj | Tsawg molecular hnyav (LMW) | Siab molecular hnyav (HMW) | LMW yaj sai dua, HMW muab cov viscosity ntau dua thiab cov gels tuab dua. |
| Degree of Hloov (DS) | Tsawg DS (tsawg hloov pauv) | High DS (ntau hloov) | Tsawg DS muab cov gel zoo zog, siab DS txhim kho solubility. |
| viscosity | Tsawg viscosity, dissolving ceev | High viscosity, thickening, gel-forming | Tsawg viscosity haum rau yooj yim dispersion, siab viscosity rau stabilization thiab kev tso tawm kom ruaj khov. |
| Purity | Ntau theem ntawm impurities (inorganic ntsev, kuab tshuaj) | Siab purity, tsawg tsawg residual impurities | High purity ua kom muaj kev nyab xeeb thiab ua tau zoo, tshwj xeeb tshaj yog nyob rau hauv cov tshuaj thiab zaub mov. |
| Solubility | Solubility tsis zoo nyob rau hauv dej txias | Zoo solubility nyob rau hauv dej txias | Kev solubility siab yog qhov muaj txiaj ntsig zoo rau cov txheej txheem thiab kev tso tawm sai. |
| Thermal stability | Tsawg thermal stability | Ntau dua thermal stability | High thermal stability nyiam nyob rau hauv high-temperature ib puag ncig. |
| Gel zog | Tsawg gel zog | Siab gel zog | High gel zog tsim nyog rau kev tswj kev tso tawm thiab gelling tshuab. |
| Qhov tshwm sim | Yellowish los yog tawm-dawb, inconsistent kev ntxhib los mos | Dawb mus rau dawb, du kev ntxhib los mos | High-quality HPMC yuav muaj cov tsos zoo ib yam, qhia txog kev sib xws hauv kev tsim khoom. |
Daim ntawv thov-raws li kev txiav txim siab zoo
Kev lag luam kws tshuaj: Nyob rau hauv cov tshuaj formulations, lub purity, viscosity, molecular hnyav, thiab gel lub zog yog ib qho tseem ceeb rau kev ua tau zoo ntawm HPMC. Kev tswj hwm kev tso tawm ntawm cov khoom xyaw tshuaj nquag (APIs) yog nyob ntawm cov khoom ntawm HPMC, qhov twg qhov hnyav molecular thiab qib tsim nyog ntawm kev hloov pauv tso cai rau cov qauv tsim tawm-tso tawm zoo dua.
Kev lag luam zaub mov: Rau cov khoom noj khoom haus, tshwj xeeb tshaj yog nyob rau hauv daim ntawv thov xws li cov zaub mov coatings, texturizing agents, thiab emulsifiers, HPMC ntawm qis viscosity thiab me ntsis solubility feem ntau nyiam. Cov zaub mov zoo-qib HPMC ua kom cov neeg siv khoom muaj kev nyab xeeb thiab ua tau raws li cov qauv kev noj haus.
Tshuaj pleev ib ce thiab kho tus kheej: Hauv tshuaj pleev ib ce, AnxinCel®HPMC yog siv rau emulsification, thickening, thiab film-forming. Ntawm no, viscosity thiab solubility yog qhov tseem ceeb los tsim cov qauv ruaj khov xws li tshuaj pleev, tshuaj pleev, thiab cov khoom siv plaub hau.
Kev Siv Hluav Taws Xob: Hauv cov ntawv thov kev lag luam, xws li hauv cov xim, cov nplaum, thiab cov coatings, cov qib siab viscosity HPMC feem ntau yog siv rau thickening thiab tsim zaj duab xis. Kev tsom mus rau thermal stability, purity, thiab viscosity yog qhov tseem ceeb hauv kev ua kom pom cov khoom lag luam zoo hauv cov xwm txheej hnyav.
Qhov zoo ntawmHydroxypropyl Methylcellulosetuaj yeem cuam tshuam nws qhov kev ua tau zoo thoob plaws kev lag luam sib txawv. Los ntawm kev nkag siab txog yam uas ua rau nws zoo-xws li qhov hnyav molecular, qib ntawm kev hloov pauv, viscosity, purity, solubility, thiab thermal stability-koj tuaj yeem xaiv qib zoo rau txhua daim ntawv thov. Txawm hais tias siv tshuaj, khoom noj khoom haus, lossis kev tsim khoom lag luam, kom ntseeg tau tias qib zoo ntawm HPMC raug xaiv yuav txhim khu kev ua tau zoo thiab kev ua tau zoo ntawm cov khoom kawg.
Post lub sij hawm: Jan-27-2025