Hydroxypropyl Methylcellulose (HPMC) yog ib qho kev siv cellulose ether derivative uas tau siv dav hauv cov tshuaj nplaum.
Thickener:
Hydroxypropyl methylcellulose yog cov thickener zoo uas tuaj yeem txhim kho cov viscosity thiab rheological zog ntawm cov nplaum. Los ntawm kev ua kom cov viscosity ntawm lub cev, HPMC tuaj yeem txhim kho kev ua haujlwm ntawm cov nplaum, tiv thaiv cov kua nplaum los ntawm kev ntws nrawm dhau, xyuas kom meej tias cov kua nplaum tuaj yeem sib npaug ntawm qhov chaw ntawm lub substrate thaum lub sij hawm tsim kho, thiab tsis txhob poob thiab sagging. .
Bonding zog:
HPMC muaj cov khoom sib txuas zoo heev thiab tuaj yeem tsim cov txheej txheem kev sib raug zoo ntawm cov khoom sib txawv. Los ntawm cov qauv molecular ntawm nws cov saw cellulose, nws ua rau lub cev thiab tshuaj lom neeg sib cuam tshuam nrog rau saum npoo ntawm substrate los tsim kom muaj zog sib txuas, yog li txhim kho lub zog sib txuas ntawm cov nplaum.
Kev tuav dej:
HPMC muaj cov dej tuav zoo thiab tuaj yeem khaws cov dej noo hauv cov nplaum nplaum, tiv thaiv cov nplaum los ntawm kev tawg lossis txo lub zog vim dej poob sai thaum lub sijhawm ziab. Qhov no feature yog tshwj xeeb tshaj yog ib qho tseem ceeb nyob rau hauv dej-raws li adhesives, uas yuav ncua lub sij hawm qhib ntawm cov nplaum thiab txhim kho qhov yooj yim ntawm daim ntawv thov.
stability:
HPMC tuaj yeem txhim kho qhov system ruaj khov ntawm cov nplaum thiab tiv thaiv kev daws teeb meem thiab delamination ntawm cov khoom hauv cov qauv. Los ntawm kev ua kom muaj kev sib haum xeeb thiab kev ruaj ntseg ntawm lub cev, HPMC pab tswj lub sijhawm ntev cia thiab kev ua haujlwm ntawm cov nplaum.
Film forming zog:
Hydroxypropyl methylcellulose muaj cov yeeb yaj kiab zoo tsim thiab tuaj yeem tsim cov yeeb yaj kiab zoo ib yam ntawm cov substrate. Cov yeeb yaj kiab no muaj qee yam ntawm elasticity thiab yoog raws thiab tuaj yeem hloov kho me ntsis deformations ntawm substrate, tiv thaiv cov nplaum los ntawm kev tawg lossis tev vim deformation ntawm substrate.
Solubility thiab dispersion:
HPMC muaj dej zoo solubility thiab dispersion, thiab sai sai yaj nyob rau hauv dej txias thiab tsim ib tug pob tshab los yog translucent viscous kua. Nws cov solubility zoo thiab dispersion ua rau HPMC yooj yim rau kev khiav lag luam thiab sib tov thaum lub sij hawm npaj cov nplaum, thiab tuaj yeem ua tiav qhov xav tau viscosity thiab rheological zog.
Huab cua tsis kam:
HPMC muaj kev ruaj ntseg zoo nyob rau hauv ib puag ncig hnyav xws li qhov kub thiab txias, tsis tshua muaj kub, thiab av noo, thiab tuaj yeem ua haujlwm ruaj khov ntawm cov nplaum. Qhov kev tiv thaiv huab cua no ua rau cov nplaum uas muaj HPMC haum rau ntau qhov chaw tsim kho thiab siv sijhawm.
Kev tiv thaiv ib puag ncig:
Raws li lub ntuj cellulose derivative, HPMC muaj biodegradability zoo thiab kev tiv thaiv ib puag ncig. Nws tsis tsim cov tshuaj phem thaum siv thiab pov tseg, yog ib puag ncig tus phooj ywg, thiab yog nyob rau hauv txoj kab nrog txoj kev loj hlob ntawm kev lag luam ntsuab tshuaj ntsuab niaj hnub.
Hydroxypropyl methylcellulose plays ntau lub luag haujlwm tseem ceeb hauv cov ntawv nplaum. Nws nce viscosity, txhim kho cov khoom sib txuas, khaws cov dej noo, stabilizes lub kaw lus, tsim cov yeeb yaj kiab tiv thaiv, txhawb kev tawg thiab tawg, muab huab cua tiv thaiv, thiab yog ib puag ncig zoo. HPMC tau txhim kho kev ua tau zoo tag nrho ntawm cov nplaum thiab tau siv dav hauv kev tsim kho, rooj tog zaum, ntim khoom, tsheb thiab lwm yam, dhau los ua ib qho tseem ceeb thiab tseem ceeb hauv kev tsim cov nplaum.
Post lub sij hawm: Aug-01-2024