FREULTIING NTAWM HydroxyPropyyl Metylropenose HPMC Kev Paub

HydroxyPropyl methylcellose HPMC yog cov tsis-ionic cellulose ither ua los ntawm cov ntaub ntawv polymer los ntawm kev ua yeeb yam polymer los ntawm kev ua yeeb yam polymer. Lawv yog cov ntxhiab tsw, cov hmoov nplej thiab tsis muaj qab zib uas swells hauv dej txias kom muaj cov tshuaj txias lossis me ntsis colloidal tov. Nws muaj cov khoom ntawm thickening, khi, emulsifying, zaj duab xis, nquag, tuav dej noo, tuav noo thiab tiv thaiv kev tiv thaiv thiab tiv thaiv kev tiv thaiv. HydroxyPropyyl methylulose, methylcellulose tuaj yeem siv nyob rau hauv cov ntaub ntawv tsim tsev, kho cov tshuaj, tshuab ceramile, ua liaj ua teb, txhua yam tshuaj lom zem, ua liaj ua teb txhua hnub thiab lwm yam kev lag luam.

Cov dej khaws cov txiaj ntsig thiab cov ntsiab cai ntawm hydroxyprropal methylcellose hpmc

Cellulose ether hpmc feem ntau yog cov dej tuav thiab thillening nyob rau hauv xis mas redeed slurry, uas tuaj yeem txhim kho cov cohesion thiab sag tiv thaiv cov slurry.

Yam xws li cua kub, ntsuas kub cuam tshuam rau cov dej colatilization thiab cov khoom lag luam gypsum. Yog li ntawd, nyob rau lub caij sib txawv, muaj qee qhov sib txawv ntawm cov dej ua kom ruaj khov ntawm cov khoom lag luam nrog tib tus nqi HPMC ntxiv. Hauv kev tsim kho tshwj xeeb, cov dej khaws cov nyhuv khaws cia ntawm cov slurry tuaj yeem hloov kho los ntawm nce lossis txo tus HPMC ntxiv. Cov dej tuav tseg ntawm methyl cellulose ntawm qhov ntsuas kub ntawm qhov ntsuas kub yog qhov ntsuas qhov tseem ceeb ntawm methyl cellulose ether. Cov khoom lag luam HPMC zoo dua tuaj yeem daws qhov teeb meem ntawm dej rov qab nyob hauv qab kub. Hauv cov caij nyoog kub, tshwj xeeb tshaj yog nyob rau hauv cov chaw kub thiab qhuav thiab nyias txheej HPMC yuav tsum txhim kho cov dej khaws cia ntawm cov slurry. Cov kev ua haujlwm siab HPMC, nrog cov metroly thiab hydrogy colins, thiaj li tuaj yeem ua kom cov pa roj av los ua kom cov pa roj av thiab cov huab cua kub thiab ua tiav cov dej siab.

HIGHT HEEV CELULULOSE HPMC tuaj yeem sib xyaw thiab cov khoom siv ntub dej, thiab cov khoom ntub dej, thiab cov khoom ntub dej, thiab cov dej noo hauv lub hauv paus yog maj mam tso tawm lub sijhawm ntev. Cov tshuaj tua dej ntawm cov khoom siv coagulating tshwm sim, yog li ua kom muaj zog ntawm lub zog thiab compressive lub zog ntawm cov khoom. Yog li ntawd, hauv kev siv kub lub caij ntuj sov, txhawm rau ua tiav cov txiaj ntsig ntawm cov dej, nws yuav tsum tau ntxiv, kev tawg, tsis muaj zog, hollowing thiab poob tawm los ntawm kev ziab khaub ncaws dhau ntawd. Nws kuj tseem nce qhov nyuaj ntawm kev tsim kho rau cov neeg ua haujlwm. Raws li qhov ntsuas kub tsawg dua, qhov nyiaj ntxiv ntawm HPMC tuaj yeem txo qis, thiab tib cov nyhuv retentely tuaj yeem ua tiav.

Cov dej tuav tseg ntawm hydroxypropyl methylcellose HPMC khoom nws tus kheej feem ntau cuam tshuam los ntawm cov hauv qab no:

1. Cellulose ether HPMC homogeneity
Lub cev muaj kev cuam tshuam HPMC muaj cov kev faib tawm ntawm methoxy thiab hydroxyprropoxy pawg thiab dej siab khaws cia.

2. Cellulose ether HPMC thermal gel kub
Qhov siab dua cov thermal gel kub, ntau dua cov dej rov qab tswj; Txwv tsis pub, qis dua cov dej khaws cia.

3. Cellulose ether HPMC viscosity
Thaum lub viscos ntawm HPMC nce, cov dej tswj kav ntxiv kuj nce ntxiv; Thaum lub viscosity mus txog ib theem, kev nce ntawm cov dej khaws cov nqi tswj hwm qis npaum li cas yog maj mam.

4. Cellulose ether HPMC Ntxiv Qhov Nyiaj
Qhov loj dua ntxiv tus nqi ntawm cellulose ether HPM, ntau dua cov dej khaws cia thiab qhov zoo dua cov dej ua kom ruaj khov. Nyob rau hauv cov thaj tsam ntawm 0.25-0.6%, dej khaws dej ua kom nrawm dua nrog kev nce ntxiv; Thaum qhov kev ntxiv ntxiv nce ntxiv, ua kom nce zuj zus ntawm cov dej rov qab los ua qeeb dua.