Dab tsi yog qhov sib txawv ntawm HPMC E5 thiab E15?

HydroxyPropyyl Metylcellulose (HPMC) yog kev siv hluavtaws zoo nkauj suav nrog kev lag luam, vencoelictic polymer, kev tsim kho, khoom noj khoom haus, thiab tshuaj pleev noj, thiab tshuaj pleev ib ce, thiab tshuaj pleev noj, thiab tshuaj pleev ib ce, thiab tshuaj pleev noj, thiab tshuaj pleev ib ce, thiab tshuaj pleev noj, thiab tshuaj pleev ib ce. Nws yog muab tau los ntawm cellulose los ntawm kev hloov kho tshuaj lom neeg. HPMC muaj nyob rau hauv cov qib sib txawv los ntawm cov qib hloov pauv (DS) ntawm cov pab pawg ntawm hydroxyropyl thiab methoxy pab pawg, nrog rau ntawm viscosity ntawm kev daws. Cov qhab nia yog hais txog los ntawm kev sib xyaw ntawm cov tsiaj ntawv thiab tus lej, xws li E5 thiab E15.

1. Molecular qauv:
HPMC E5:
HPMC E5 yog hais txog qib HPMC nrog qis dua kev hloov pauv ntawm hydroxypropyl thiab methoxy pawg piv rau E15.
Cov qib qis dua ntawm kev hloov pauv ntawm hydroxypropyl thiab methoxy pawg ib pawg cellulose chav nyob hauv polymer saw.
HPMC E15:
HPMC E15, ntawm qhov tod tes, muaj qib siab dua hloov chaw ntawm hydroxypropyl thiab methoxy pawg sib piv rau E5.
Qhov no txhais tau ntau dua tus naj npawb ntawm hydroxypropyl thiab mexoxy pawg ib pawg cellulose nyob rau hauv cov saw polymer.

2. Viscosity:
HPMC E5:
HPMC E5 feem ntau muaj qhov qis viscosity rau E15.
Cov qib qis viscosity zoo li E5 feem ntau siv thaum qis dua cov nyhuv thickening yog xav tau cov qauv.
HPMC E15:
HPMC E15 muaj viscosity ntau dua piv rau E5.
Qib vaccosity zoo li E15 yog nyiam thaum tuab li ib txwm muaj lossis zoo dua dej khaws cia cov khoom siv.

3. Dej Solubility:
HPMC E5:
Ob tus HPMC E5 thiab E15 yog cov dej-soluble polymers.
Txawm li cas los xij, cov solubility yuav txawv txav txawv ntawm lwm cov txheej txheem thiab ib puag ncig.
HPMC E15:
Zoo li E5, HPMC E15 yog yooj yim soluble hauv dej.
Nws ua cov tshuaj kom pom tseeb, cov tshuaj pleev xim rau kev sib cais.

4. Daim Ntawv Thov:
HPMC E5:
HPMC E5 feem ntau siv hauv cov ntawv thov uas qis viscosity thiab muaj cov nyhuv thickened.
Piv txwv ntawm cov ntawv thov muaj xws li:
Kws tsim qauv tshuaj (raws li cov nyom, dismitabrants, lossis tswj xyuas cov neeg sawv cev).
Cov khoom siv saib xyuas tus kheej (raws li cov khoom siv thickenters hauv cov tshuaj pleev, cream, thiab tshuaj zawv plaub hau).
Khoom noj khoom haus kev lag luam (raws li ib txheej tus neeg sawv cev lossis tuab dua).
Kev tsim kho kev tsim kho (ua cov khoom ntxiv hauv cov khoom siv cov cement-raws rau kev txhim kho cov haujlwm ua haujlwm thiab dej rov qab).
HPMC E15:
HPMC E15 yog nyiam nyob rau hauv cov ntawv thov uas xav tau cov viscosity ntau dua thiab muaj zog thicking cov khoom.
Cov ntawv thov ntawm HPMC E15 suav nrog:
Kws Tshuaj Kho Mob (raws li cov neeg sawv cev, viscosity modifiers, lossis kev tso tawm-tso tawm cov neeg sawv cev).
Cov ntaub ntawv tsim tsev (raws li cov tuab dua lossis phau ntawv nyob rau hauv cov nplais nplaum, plaster, lossis grouts).
Cov khoom noj khoom haus kev lag luam (raws li tus neeg sawv cev ua kom tuab ntawm cov kua ntses, puddings, lossis cov khoom noj mis).
Kev lag luam kom hniav zoo (hauv cov khoom uas yuav tsum muaj viscosity siab, xws li cov kua pleev plaub hau lossis cov nyom uas muaj stypses).

5. Kev tsim qauv tsim:
HPMC E5 thiab E15:
Kev tsim qauv rau ob qho tib si HPMC E5 thiab E15 koom nrog lub Erice ntawm cellulose nrog cov tshuaj pleev cov areClene thiab methyl chloride.
Cov degree ntawm kev hloov pauv tau raug tswj tau thaum lub sijhawm synthesis kom ua tiav cov khoom xav tau.
Ntau yam tsis xws li cov tshuaj tiv thaiv lub sijhawm, ntsuas kub, thiab qhov sib piv ntawm reactants yog qhov zoo tshaj plaws los tsim HPMC nrog cov yam ntxwv tshwj xeeb.

Lub ntsiab sib txawv ntawm HPMC E5 thiab E15 nyob hauv lawv cov qauv molecular, viscosity, thiab kev siv. Thaum ob qib kawm yog dej-soluble polymers tau los ntawm cellulose los ntawm cellulose los ntawm cellulose, HPMC E5 muaj qhov qis dua kev hloov kho thiab viscosity piv rau HPMC E15. Yog li, E5 haum rau cov ntawv thov uas yuav tsum tau ua kom qis viscosity thiab muaj cov E15 xav tau ntau dua cov kev siv tau xav tau ntau dua thiab muaj zog dua cov teebmeem. Nkag siab cov kev sib txawv no yog qhov tseem ceeb rau kev xaiv cov qib kawm ntawm HPMC tsim nyog thiab cov ntawv thov.