Yuav ua li cas kom phim cellulose ether fydroxypropyl cellulose hpmc los ntawm viscosity?

Sib txuam hydroxypropyl cellulose (HPMC) los ntawm cov khoom uas ua kom haum thiab cov yam ntxwv ua tau zoo rau cov ntawv thov tshwj xeeb. Viscosity yog ib qho chaw tseem ceeb uas cuam tshuam rau qhov ntws, ua haujlwm, thiab lwm yam kev daws teeb meem ntawm HPMC daws teeb meem lossis kev tawg. Ntawm no yog cov lus qhia ib qib zuj zus los ntawm kev yuav ua li cas kom phim cellulose ether HPMC los ntawm visccosity:

1. Txhais daim ntawv thov yuav tsum muaj:

Txheeb xyuas cov kev cai tshwj xeeb ntawm koj daim ntawv thov. Xav txog yam zoo xws li:

• Xav tau haujlwm thiab yooj yim ntawm daim ntawv thov.
• Rheological cov khoom xav tau rau daim ntawv thov (piv txwv li, thickening, dej tuav, thiab lwm yam).
• Cov lus qhia tshwj xeeb rau Adhesion, Zaj duab xis tsim, lossis lwm yam kev ua tau zoo.

2. Nkag siab cov viscosity qib:

HPMC muaj nyob rau hauv ntau hom neeg txawv teb chaws, ntsuas qib, ntsuas hauv Centipoise (CP) lossis MpaNA. Cov qhab nia sib txawv muaj cov qauv viscosity sib txawv, thiab cov kws tsim khoom lag luam feem ntau ua rau lawv txawv (piv txwv li, qis viscosity, nruab nrab viscosity, siab viscosity). Txhua qib viscosity muaj cov ntawv thov tshwj xeeb uas nws ua tau zoo.

3. Xa mus rau cov chaw tsim khoom cov ntaub ntawv:

Tham nrog cov ntaub ntawv ntaub ntawv cov ntaub ntawv muab los ntawm HPMC cov tuam ntxhab. Cov ntaub ntawv no feem ntau suav nrog cov ntaub ntawv ntawm viscosity ranges rau txhua qib, ntxiv rau lwm cov khoom muaj kev cuam tshuam xws li qib me me, thiab solubility. Cov neeg tsim khoom feem ntau pom cov qib tshwj xeeb rau qee cov ntawv thov.

4. Ntsag viscosity rau daim ntawv thov:

Xaiv qib HPMC nrog qib viscosity uas phim cov kev cai ntawm koj daim ntawv thov. Piv txwv li:

• Rau cov ntawv thov uas xav tau viscosity thiab txhim kho kev ua haujlwm (piv txwv li, plastering), xav txog cov qib qis hpmc.
• Rau cov ntawv thov siab viscosity thiab dej khaws cia (piv txwv li, xaiv cov nplaum uas siab ntsws high-viscos.

5. Txiav txim siab tsim thiab ntau npaum li cas:

Coj mus rau hauv tus account cov qauv ntawm koj cov khoom thiab cov tshuaj ntawm HPMC. Cov viscosity yuav tsum tau ua tiav los ntawm kev kho cov tshuaj ntawm HPMC hauv kev tsim qauv. Nws yog ib qho tseem ceeb kom nyob hauv qhov kev pom zoo muab cov kev pom zoo muab los ntawm cov chaw tsim tshuaj paus kom ntseeg tau tias kev ua tau zoo.

6. Ua cov kev kuaj sim (lab):

Ua ntej kev tsim khoom loj heev, ua cov kev kuaj sim (lab) Qib kawm qib HPMC los ntsuas lawv cov kev ua tau zoo hauv koj cov qauv tshwj xeeb. Cov kauj ruam no tso cai rau koj saib seb txhua qib cuam tshuam li cas cov khoom xws li kev ua haujlwm, thiab lwm yam kev cai tshwj xeeb.

7. Nrog kev txhawb nqa nrog kev pab txhawb kev:

Yog tias koj muaj cov ntawv thov uas muaj cov ntaub ntawv nyuaj lossis kev xav txog kev sab laj nrog pab neeg txhawb nqa kev lag luam HPMC. Lawv tuaj yeem muab cov kev taw qhia ntawm cov qib viscosity uas tsim nyog tshaj plaws raws li koj cov kev xav tau thiab tuaj yeem muab cov kev pom zoo ntxiv rau hauv kev kho kom haum.

8. Xav txog cov khoom ntxiv:

Thaum viscosity yog qhov tseem ceeb ntsuas, xav txog lwm yam khoom ntawm HPMC uas tej zaum yuav cuam tshuam kev ua haujlwm hauv koj daim ntawv thov. Qhov no yuav suav nrog cov khoom xws li gelation kub, particle loj, thiab sib xyaw nrog lwm cov khoom xyaw hauv koj cov qauv.

9. Kev lees paub zoo:

Xaiv HPMC los ntawm cov npe nrov nrog cov ntaub ntawv sau ua cov ntaub ntawv uas ua tau cov kev ua kom zoo. Xav txog yam zoo li xws li xws li kev sib xws, muaj kev coj dawb huv, thiab kev yoog raws rau cov qauv kev lag luam.

Xaus:

Sib phimCellulose ether HPMCLos ntawm viscosity cuam tshuam nrog kev nkag siab cov cai thov, sab laj cov ntaub ntawv kev sib tham, thiab txiav txim siab kev kuaj sim ntawm cov chaw tsim khoom. Ua tib zoo txiav txim siab ntawm cov xwm txheej no yuav pab koj xaiv HPMC haum rau HPMC haum rau cov kev xav tau ntawm koj daim ntawv thov.