Hypromellose thiab HPMC (hydroxypropyl methylcellulose) yog qhov sib xyaw ua ke, txawm tias paub los ntawm ntau lub npe. Ob lub ntsiab lus yog siv sib hloov mus rau kev xa mus rau cov tshuaj sib xyaw uas pom muaj kev siv dav hauv ntau yam lag luam, suav nrog tshuaj, khoom noj, tshuaj pleev ib ce, thiab kev tsim kho.
Chemical Structure:
Hypromellose: Qhov no yog semi-synthetic, inert, viscoelastic polymer muab tau los ntawm cellulose. Nws yog chemically tsim ntawm cellulose hloov nrog hydroxypropyl thiab methyl pawg. Cov kev hloov kho no txhim kho nws cov solubility, viscosity, thiab lwm yam khoom tsim nyog rau ntau yam kev siv.
HPMC (Hydroxypropyl Methylcellulose): Qhov no yog tib yam li hypromellose. HPMC yog cov lus siv los hais txog qhov sib xyaw no, sawv cev rau nws cov qauv tshuaj muaj xws li hydroxypropyl thiab methyl cellulose pawg.
Khoom:
Solubility: Ob leeg hypromellose thiab HPMC yog soluble hauv dej thiab cov kuab tshuaj organic, nyob ntawm seb qhov kev hloov pauv thiab qhov hnyav molecular ntawm cov polymer.
Viscosity: Cov polymers no muaj ntau yam viscosities nyob ntawm lawv qhov hnyav molecular thiab qib hloov pauv. Lawv tuaj yeem siv los tswj cov viscosity ntawm kev daws teeb meem thiab txhim kho kev ruaj ntseg ntawm cov qauv hauv ntau daim ntawv thov.
Zaj duab xis tsim: Hypromellose / HPMC tuaj yeem tsim cov yeeb yaj kiab thaum nrum los ntawm kev daws teeb meem, ua rau lawv muaj txiaj ntsig hauv kev siv tshuaj pleev xim, qhov chaw uas lawv tuaj yeem muab cov khoom tso tawm los yog tiv thaiv cov khoom xyaw nquag ntawm ib puag ncig.
Thickening Agent: Ob leeg hypromellose thiab HPMC feem ntau yog siv los ua cov khoom ua kom tuab hauv ntau yam khoom, suav nrog zaub mov, tshuaj pleev ib ce, thiab tshuaj. Lawv muab cov kev ntxhib los mos thiab txhim kho kev ruaj ntseg ntawm emulsions thiab ncua kev kawm ntawv.
Daim ntawv thov:
Pharmaceuticals: Hauv kev lag luam kws tshuaj, hypromellose / HPMC yog dav siv los ua cov khoom siv hauv qhov ncauj ntau npaum li cov ntsiav tshuaj, tshuaj ntsiav, thiab granules. Nws ua hauj lwm ntau yam xws li binder, disintegrant, thiab tswj-tso tus neeg saib xyuas.
Kev lag luam khoom noj khoom haus: Hypromellose / HPMC yog siv rau hauv kev lag luam khoom noj khoom haus ua cov thickener, emulsifier, thiab stabilizer hauv cov khoom xws li kua ntses, hnav khaub ncaws, thiab cov khoom ci. Nws tuaj yeem txhim kho kev ntxhib los mos, viscosity, thiab txee lub neej ntawm cov khoom noj.
Tshuaj pleev ib ce: Nyob rau hauv cov tshuaj pleev ib ce, hypromellose / HPMC yog siv nyob rau hauv formulations ntawm cream, lotions, thiab gels los muab viscosity tswj, emulsification, thiab noo noo retention zog.
Kev tsim kho: Hauv cov ntaub ntawv tsim kho, hypromellose / HPMC yog siv los ua cov thickener thiab dej tuav tus neeg sawv cev hauv cov khoom siv cement xws li pobzeb nplaum, mortars, thiab renders.
hypromellose thiab HPMC xa mus rau tib lub ntsiab lus - cellulose derivative hloov nrog hydroxypropyl thiab methyl pawg. Lawv nthuav tawm cov khoom zoo sib xws thiab pom cov ntawv thov dav thoob plaws hauv kev lag luam suav nrog tshuaj, khoom noj, tshuaj pleev ib ce, thiab kev tsim kho. Kev sib hloov ntawm cov ntsiab lus no tuaj yeem ua rau muaj kev tsis sib haum xeeb, tab sis lawv sawv cev rau tib yam khoom siv polymer nrog ntau hom kev siv.
Post lub sij hawm: Apr-17-2024