HydroxyPropyyl Methylcellose HPMC E3, E5, E6, E15, E50, E4M

HydroxyPropyyl Metylcellulose (HPMC) yog lub cellulose ether uas muaj ntau qib, txhais tau los ntawm cov tsiaj ntawv thiab lej. Cov kab lus no sawv cev cov lus tshwj xeeb sib txawv, suav nrog kev hloov pauv txawv hauv cov ntsiab lus molecular, hydroxypropropyl cov ntsiab lus, thiab viscosity. Ntawm no yog kev sib tawg ntawm HPMC cov qib koj tau hais tseg:

1. HPMC E3:
   • Qhov kev kawm qib no yuav hais txog HPMC nrog cov viscosity tshwj xeeb 2.4-3.6cps. Tus lej 3 qhia txog qhov viscosity ntawm 2 lub aqueous daws, thiab cov lej ntau dua feem ntau qhia txog viscosity ntau dua.
2. HPMC E5:
   • Zoo ib yam li E3, HPMC E5 sawv cev rau qib viscosity txawv. Tus lej 5 qhia tau kwv yees kwv yees viscosity 4.0 lub cps ntawm 2% kev daws teeb meem.
3. HPMC E6:
   • HPMC E6 yog ib qib twg uas muaj viscosity profile. Tus lej 6 qhia tias Viscosity 4.8-7.2 CPS ntawm 2% kev daws teeb meem.
4. HPMC E15:
   • HPMC E15 yuav sawv cev rau qib viscosity ntau dua piv rau E3, E5, lossis E6. Tus naj npawb 15 qhia txog cov viscosity 12.0-18.0cps ntawm 2% kev daws teeb meem, hais kom tuab ib txwm muaj.
5. HPMC E50:
   • HPMC E50 qhia txog qib viscosity ntau dua, nrog tus lej 50 sawv cev rau viscosity 40.0-60.0 CPS ntawm 2% kev daws teeb meem. Cov qib kawm no zoo li muaj lub homphosity ntau ntau dua piv rau E3, E5, E6, lossis E15.
6. HPMC E4M:
   • Tus "m" hauv e4m feem ntau txhais tau nruab nrab viscosity 3200-4800CP. HPMC E4M sawv cev rau qib nrog qib viscosity. Nws yuav tsim nyog rau cov ntawv thov uas yuav tsum tau sib npaug ntawm cov nplaim thiab thickness.

Thaum xaiv cov qhab nia HPMC rau ib daim ntawv teev npe HPMC, kev txiav txim siab suav nrog qhov xav tau, solubility, thiab lwm yam kev ua tau zoo. HPMC feem ntau siv hauv kev lag luam xws li kev tsim kho, chaw muag tshuaj, tshuaj pleev ib ce, thiab khoom noj.

Nyob rau hauv cov zaub mov, HPMC feem ntau siv raws li kev ntxiv nyob rau hauv cov khoom lag luam tsis yog chaw ua haujlwm los txhim kho cov khoom siv dej zoo li cov dej ua haujlwm zoo li cov dej ua haujlwm, ua haujlwm, thiab cov tshuaj nplaum. Hauv cov chaw tshuaj thiab cov tshuaj pleev ib ce, HPMC yog siv rau nws cov yeeb yaj kiab-ua yeeb yaj kiab thiab thickening cov khoom.

Nws yog qhov tseem ceeb los sab laj nrog cov chaw tsim khoom lossis cov chaw muag khoom kom tau txais cov ncauj lus qhia ntxaws thiab cov ntawv thov pom zoo rau txhua qib HPMC. Cov ntaub ntawv tsim khoom feem ntau muab cov ntaub ntawv cov ntaub ntawv thiab cov khoom lag luam los coj cov neeg siv hauv kev xaiv cov neeg tsim nyog tshaj plaws rau lawv cov kev xav tau tshwj xeeb.