HydroxyPropyyl Metylcellulose (HPMC) yog ib qho ntau yam siv tau siv nyob rau hauv ntau yam lag luam, suav nrog cov tshuaj, kev tsim kho, thiab tshuaj pleev ib ce, thiab tshuaj pleev ib ce, thiab tshuaj pleev ib ce. Nws yog muab los ntawm cellulose thiab hloov kho los ntawm cov txheej txheem tshuaj lom neeg kom tau txais cov khoom tshwj xeeb tsim rau cov ntawv thov sib txawv. HPMC yog kev nyiam rau nws cov kev sib xyaw ua ke ntawm cov khoom xws li thickening, zaj duab xis-ua, khi, thiab dej khaws cia.
1. Txheem HPMC:
Txheem HPMC yog hom feem ntau siv thiab ua haujlwm ua lub hauv paus rau ntau lwm cov kev ua yeeb yam. Nws muaj cov dej ua kom zoo, ua yeeb yaj kiab ua yeeb yaj kiab, thiab ua raws li tus neeg sawv cev tuab. Txheem HPMC yog siv hauv cov chaw ua tshuaj rau cov ntsiav tshuaj ntawm ntsiav tshuaj, tswj cov khoom tso tawm, thiab hauv cov khoom lag luam rau thickening thiab ruaj khov.
2. Lub Siab Hloov (HS) HPMC:
Hydrified kom tau hloov kho kom muaj qib siab dua ntawm cov pab pawg hydroxypropyl thiab methyl pawg piv rau tus qauv HPMC. Qhov kev hloov kho no tau txhim kho nws lub peev xwm kav dej kom haum, ua rau nws siv cov khoom siv qhuav, cov khoom sib xyaw rau tus kheej hauv kev kho cov ntawv thov.
3. Tus neeg tsawg (LS) HPMC:
Tus nqi qis HPMC muaj qhov qis dua ntawm kev hloov pauv hloov rau tus qauv HPMC. Nws yog feem ntau nyiam rau cov ntawv thov uas yuav tsum tau ua kom sai li sai tau, xws li hauv kev ua kom qhuav cov khoom noj thiab cov tshuaj.
4. MEHOXY Cov ntsiab lus piav qhia ntau yam:
HPMC tseem tuaj yeem raug cais raws li nws cov ntsiab lus methoxy:
Tsawg methoxy HPMC: cov hom HPMC muaj tsawg dua ntawm metrolly hloov chaw. Lawv feem ntau siv nyob rau hauv cov zaub mov khoom noj raws li cov neeg sawv cev, stabilizers, thiab emulsifiers.
Nruab Nrab methoxy HPMC: Hom no feem ntau siv hauv cov kws tshuaj tau siv rau hauv kev tso tawm kev tso tawm, nrog rau kev lag luam khoom noj thickening thiab gelling.
HEEV MEHEBHY HPMC: Hathoxy HPMC yog nquag siv hauv cov tshuaj pleev ib ce thiab cov khoom tu tus kheej rau cov khoom siv ua yeeb yam thiab ua cov ntaub tuab rau cov khoom tu plaub hau.
5. Paus me me variants:
HPMC kuj tseem tuaj yeem raug cais raws nws cov particle loj faib:
Cov nplais zoo me me HPMC: Cov variants no muaj zoo dua thiab muaj kev sib luag, xws li hauv cov tshuaj pleev ib ce thiab ophthalmic npaj.
Co coars Party HPMC: Coars Particle loj HPMC feem ntau siv hauv cov khoom siv cov khoom siv thiab cov khoom siv rau txhim kho cov haujlwm thiab dej khaws cia.
6. Nto-Kho HPMC:
Deg-kho HPMC raug hloov kho nrog cov neeg sawv cev saum npoo av txhawm rau txhim kho nws cov kev tawg thiab sib xyaw nrog lwm cov khoom xyaw. Hom HPMC no feem ntau siv hauv kev sib xyaw qhuav rau kev txhim kho cov khoom ntws thiab txo cov plua plav thaum lub sijhawm tuav.
7. Ph ph-hloov HPMC:
HPMC tuaj yeem hloov kho lub ph-rhiab, tso cai rau nws nthuav tawm cov khoom sib txawv hauv qab varying p tej yam. PH-MEDIFIED HPMC nrhiav tau cov ntawv thov hauv kev tswj hwm cov tshuaj uas tau tso tawm, qhov twg cov nqi tso tawm tuaj yeem tsim kho raws li pH ib puag ncig ntawm lub hom phiaj hauv lub cev.
8. Hla HPMC:
Hla HPMC yog chemically hloov kho los ua ib qho kev sib tw peb-seem, ua rau muaj kev ruaj khov ua kom ruaj khov thiab ua rau enzymatic degradation. Hom HPMC no feem ntau siv nyob rau hauv kev pab txhawb nqa tshuaj thiab hauv cov khoom lag luam kom ntev.
9. Dual-hom phiaj HPMC:
Dual-hom phiaj hpmc sib xyaw cov khoom ntawm HPMC nrog lwm cov kev sib ntxiv ntawm kev sib ntxiv, xws li kev haus dej cawv (PVA) lossis sodium alate,, kom ua tiav cov kev cuam tshuam zoo. Cov qauv no feem ntau siv nyob rau hauv cov ntawv thov tshwj xeeb xws li kev hnav khaub ncaws hnav, qhov twg ob qho tib si ob qho chaw noo khaws thiab biocompatibility yog qhov tseem ceeb.
10. Customized HPMC Blends:
Cov neeg tsim khoom lag luam feem ntau tsim kev sib xyaw ua ke ntawm HPMC ua kom haum rau cov neeg siv khoom tshwj xeeb lossis kev xav tau kev pab. Cov kev sib xyaw no yuav ua ntau qib kawm HPMC nrog rau lwm cov neeg ua haujlwm polymers lossis ntxiv kom ua tiav cov yam ntxwv xav tau.
HydroxyPropyyl methylulose (HPMC) encompasses ntau hom thiab cov variants, txhua tus ua kom tau raws li cov kev ua tau zoo thoob plaws ntau yam kev lag luam. Seb nws puas yog hauv cov khoom noj, khoom noj, cov khoom siv tsim khoom, cov neeg pleev tshuaj ntawm HPMC txuas ntxiv mus rau kev tsim kho tshiab los daws cov kev xav tau kev lag luam tshiab.
Lub Sijhawm Post: Feb-18-2025