Dej khaws cia: HPMC, raws li dej rov qab tus neeg saib xyuas, tuaj yeem tiv thaiv ntau dhau evaporation thiab poob dej thaum lub sij hawm kho. Qhov kub hloov tau cuam tshuam rau cov dej tuav tseg ntawm HPMC. Qhov siab dua qhov kub, qhov tsis zoo ntawm cov dej khaws cia. Yog tias cug cug Kub tshaj 40 ° C, dej tuav tseg ntawm HPMC yuav ua neeg pluag, uas yuav cuam tshuam rau kev ua haujlwm ntawm lub cug. Yog li ntawd, nyob rau hauv high-kub lub caij ntuj sov, txhawm rau ua tiav cov khoom siv nyiaj khaws dej kom tau txais txiaj ntsig HPMC yuav tsum tau ntxiv rau hauv cov qauv. Txwv tsis pub, muaj teeb meem zoo xws li co cawv, txo qis, tawg, hollowing, thiab hnav los ntawm kev ziab ntau dhau yuav tshwm sim. Lus Nug.
Tsevneeg cuab yeej ua ntawv cog lus: HPMC muaj qhov cuam tshuam tseem ceeb rau kev ua haujlwm thiab cov nplaum ntawm cug. Ntau dua cov nplaum ua rau muaj ntau dua shear tsis kam thiab yuav tsum muaj ntau zog thaum lub sijhawm kev tsim kho, ua rau txo cov haujlwm ua haujlwm. Raws li cov kws cellulose ether yog cov khoom lag luam, HPMC cov khoom pov thawj me me.
Flowerability thiab workability: HPMC tuaj yeem txo kev sib txhuam ntawm cov khoom siv, ua kom yooj yim rau kev thov. Qhov kev txhim kho mateuverity ua rau cov txheej txheem kev tsim kho tau zoo dua.
Tawg kuj: HPMC ua ib qho kev sib xyaw ua ke nyob rau hauv cov kab cug, txo cov kev ntxhov siab sab hauv thiab txo qhov tshwm sim ntawm shrinkage cracks. Qhov no nce tag nrho cov kev siv tshuaj tag nrho ntawm cov tshuaj khib, ua kom muaj txiaj ntsig ntev.
Compressive thiab Flexural zog muaj zog: HPMC nce lub zog flexural lub zog ntawm culture ntawm matrix thiab txhim kho txoj kev sib khi ntawm cov khoom. Qhov no yuav ua rau tiv thaiv sab nraud sab nraud thiab ua kom cov qauv kev ruaj ntseg ntawm lub tsev.
Thermal Performance: Ntxiv rau HPMC tuaj yeem tsim cov khoom siv cov khoom sib zog thiab txo qhov hnyav. Qhov kev piv txwv siab no pab nrog cov rwb thaiv tsev thermal thiab tuaj yeem txo cov hluav taws xob kev ua haujlwm thaum muaj kev kub ntxhov thaum raug cov cua sov. kom muaj nuj nqis. Qhov tsis kam mus rau tshav kub hloov mus los ntawm lub vaj huam sib txawv ntawm HPMC ntxiv, nrog kev sib txuam ntawm Hermc ntxiv rau hauv kev siv hluav taws xob ntxiv rau cov khoom sib xyaw.
Cua-Entraining Cov nyhuv: huab cua-nkag cov nyhuv ntawm HPMC hais txog cov kev sib cais ntawm cov npuas dej, thiab txhim kho cov kab ke ntawm npuas thiab cov tawv nqaij tawv ntawm cov dej npuas ntshiab. Nws yog qhov tseem ceeb thiab nyuaj rau kev tawm.
Gel kub: lub gel kub ntawm HPMC hais txog qhov kub ntawm HPMC lwg me me ua ib qho kev daws teeb meem hauv qee qhov kev xav thiab tus nqi PH. Gel kub yog ib qho ntawm cov tsis tseem ceeb rau HPMC daim ntawv thov, cuam tshuam rau kev ua tau zoo thiab nyhuv ntawm HPMC hauv ntau daim teb. Lub gel kub ntawm HPMC nce nrog qhov nce hauv siab. Qhov nce hauv kev hnyav hauv molecular hnyav thiab txo qis hauv qib degree yuav ua rau cov khoom kub kom nce ntxiv.
HPMC muaj qhov cuam tshuam tseem ceeb rau cov yam ntxwv ntawm collch ntawm ntau qhov kub. Cov kev cuam tshuam no koom nrog kev ua haujlwm hauv dej, kev sib raug zoo, tawg tawm, lub zog ntawm compressive, kev ua haujlwm ntawm lub zog thiab cua nkag. Cov. Los ntawm kev tsim kho cov tshuaj thiab kev tsim kho ntawm HPMC, kev ua yeeb yam ntawm collch tuaj yeem ua tau zoo thiab ua kom muaj zog ntawm ntau qhov kub thiab txias tuaj yeem txhim kho.
Lub Sijhawm Post: Oct-26-2024