Yuav siv hydroxypropyl methylcellulose li cas thiab ceev faj

1. Taw qhia txog hydroxypropyl methylcellulose

Hydroxypropyl methylcellulose (HPMC)yog ib qho uas tsis yog-ionic cellulose ether ua los ntawm ntuj polymer cov ntaub ntawv los ntawm kev hloov tshuaj. Nws yog dav siv hauv kev tsim kho, tshuaj, khoom noj, tshuaj pleev ib ce, txheej thiab lwm yam, thiab muaj ntau yam haujlwm xws li thickening, dej tuav, tsim zaj duab xis, thiab adhesion.

2. Yuav siv hydroxypropyl methylcellulose li cas

Dej txias dissolution
AnxinCel®HPMC tuaj yeem faib ncaj qha rau hauv cov dej txias, tab sis vim nws cov hydrophilicity, nws yooj yim los tsim cov pob. Nws raug nquahu kom maj mam nphoo HPMC rau hauv cov dej txias txias kom ntseeg tau tias muaj kev sib cais tsis sib xws thiab tsis txhob sib sau ua ke.

Cov dej kub dissolution
Tom qab ua ntej ntub dej HPMC nrog dej kub, ntxiv dej txias kom swell nws los tsim ib qho kev daws teeb meem. Txoj kev no yog tsim rau high-viscosity HPMC.

Qhuav hmoov sib tov
Ua ntej siv HPMC, nws tuaj yeem sib tov sib npaug nrog lwm cov khoom siv hmoov, thiab tom qab ntawd nplawm thiab yaj nrog dej.

Kev tsim kho kev lag luam
Hauv mortar thiab putty hmoov, qhov sib ntxiv ntawm HPMC feem ntau yog 0.1% ~ 0.5%, uas yog siv los txhim kho dej tuav, kev tsim kho kev ua haujlwm thiab kev ua haujlwm tiv thaiv sagging.

Kev lag luam kws tshuaj
HPMC feem ntau yog siv rau hauv cov ntsiav tshuaj txheej thiab sustained-tso matrix, thiab nws cov koob tshuaj yuav tsum tau kho raws li cov qauv tshwj xeeb.

Kev lag luam zaub mov
Thaum siv los ua cov thickener lossis emulsifier hauv cov zaub mov, qhov ntau npaum li cas yuav tsum ua raws li cov qauv kev nyab xeeb, feem ntau 0.1% ~ 1%.

Txheej
Thaum HPMC siv rau hauv cov txheej txheem dej, nws tuaj yeem txhim kho cov thickening thiab dispersibility ntawm txheej thiab tiv thaiv cov xim los nag.

Tshuaj pleev ib ce
HPMC yog siv los ua tus stabilizer hauv tshuaj pleev ib ce los txhim kho qhov kov thiab ductility ntawm cov khoom.

3. Kev ceev faj rau kev siv hydroxypropyl methylcellulose

Lub sij hawm dissolution thiab kub tswj
HPMC yuav siv sij hawm qee lub sij hawm kom yaj, feem ntau yog 30 feeb mus rau 2 teev. Qhov kub siab dhau los yog qis dhau yuav cuam tshuam rau tus nqi tawg, thiab qhov tsim nyog kub thiab nplawm yuav tsum raug xaiv raws li qhov xwm txheej tshwj xeeb.

Tsis txhob agglomeration
Thaum ntxiv HPMC, nws yuav tsum tau tawg maj mam thiab nplawm kom huv si kom tsis txhob muaj kev sib tsoo. Yog tias agglomeration tshwm sim, nws yuav tsum tau muab tso rau ib leeg rau ib lub sijhawm thiab nplawm tom qab nws o tag.

Kev cuam tshuam ntawm ib puag ncig humidity
HPMC yog rhiab heev rau cov av noo thiab nws yooj yim rau ya raws thiab agglomeration nyob rau hauv ib tug high humidity ib puag ncig. Yog li ntawd, kev saib xyuas yuav tsum tau them rau qhov qhuav ntawm qhov chaw cia thiab ntim yuav tsum tau muab kaw.

Acid thiab alkali tsis kam
HPMC yog qhov ruaj khov rau cov kua qaub thiab alkalis, tab sis nws yuav ua rau muaj zog acid lossis alkali ib puag ncig, cuam tshuam rau nws txoj haujlwm. Yog li ntawd, huab cua pH yuav tsum zam kom ntau li ntau tau thaum siv. 

Kev xaiv cov qauv sib txawv
HPMC muaj ntau yam qauv (xws li viscosity siab, viscosity tsawg, dissolving ceev, thiab lwm yam), thiab lawv cov kev ua tau zoo thiab kev siv sib txawv. Thaum xaiv, tus qauv tsim nyog yuav tsum raug xaiv raws li qhov tshwj xeeb daim ntawv thov scenario (xws li cov khoom siv hauv tsev, tshuaj, thiab lwm yam) thiab xav tau.

Kev tu cev thiab kev nyab xeeb
Thaum siv AnxinCel®HPMC, cov khoom siv tiv thaiv yuav tsum hnav kom tsis txhob nqus plua plav.

Thaum siv cov khoom noj thiab tshuaj, nws yuav tsum ua raws li cov kev cai thiab cov qauv ntawm cov kev lag luam uas cuam tshuam.

Compatibility nrog lwm yam additives

Thaum sib xyaw nrog lwm cov ntaub ntawv hauv cov mis, yuav tsum tau them nyiaj rau nws txoj kev sib raug zoo kom tsis txhob muaj nag lossis daus, coagulation lossis lwm yam teebmeem tshwm sim.

4. Kev khaws cia thiab kev thauj mus los

Cia
HPMCyuav tsum tau muab cia rau hauv qhov chaw txias, qhuav, tsis txhob kub thiab av noo. Cov khoom siv tsis siv yuav tsum tau muab kaw.

Kev thauj mus los
Thaum lub sij hawm kev thauj mus los, nws yuav tsum tau tiv thaiv los ntawm nag, noo noo thiab kub kub kom tsis txhob muaj kev puas tsuaj rau lub ntim.

Hydroxypropyl methylcellulose yog cov khoom siv tshuaj ntau yam uas yuav tsum muaj kev tshawb fawb thiab tsim nyog kev sib cais, ntxiv thiab khaws cia rau hauv kev siv tswv yim. Ua tib zoo saib kom tsis txhob agglomeration, tswj dissolution tej yam kev mob, thiab xaiv tus qauv tsim nyog thiab ntau npaum li cas raws li sib txawv daim ntawv thov scenarios kom maximize nws cov kev ua tau zoo. Nyob rau tib lub sijhawm, cov qauv kev lag luam yuav tsum tau ua raws li nruj me ntsis kom ntseeg tau tias muaj kev nyab xeeb thiab siv tau zoo ntawm HPMC.