HydroxyPropyyl methylcellose (HPMC) yog ib feem siv dej-soluble polymer cellulose cellulose uas tau siv dav hauv kev tsim kho, chaw muag tshuaj, khoom noj khoom haus, khoom noj. HPMC muaj cov dej kom zoo, thickening, zaj duab xis-ua thiab ruaj khov ntawm cov yam ntxwv, thiab nws txoj kev xav tau muaj kev cuam tshuam tseem ceeb rau kev tuav dej.
1. Cov ntsiab cai tseem ceeb ntawm HPMC dej tuav
HPMC ua ib qho cuab yeej muaj peb-seem ntawm kev sib txuas thiab kev sib txuas ntawm lub cev, uas tuaj yeem ntes thiab khaws noo noo. Nws cov dej khaws cia yog qhov tseem ceeb ntawm cov hauv qab no:
Lub cev adsorption: Cov pab pawg hydroxyl ntawm HPMC molecular charts tuaj yeem tsim cov lwg me me, thiab nqus thiab nqus dej thiab khaws cov noo noo.
Viscosity nyhwv: HPMC nce viscos ntawm txoj kev daws teeb meem thiab txo cov dej ntawm dej, yog li txo cov dej evaporation thiab nkag mus.
Zaj duab xis tsim muaj peev xwm: HPMC tuaj yeem tsim cov yeeb yaj kiab tiv thaiv tsis zoo los thaiv cov evaporation ntawm ya raws.
2. Cov nyhuv ntawm kev pom zoo ntawm dej khaws cia HPMC
Cov dej khaws cia hauv HPMC muaj feem cuam tshuam nrog nws cov kev xav hauv kev daws teeb meem, thiab cov dej ua kom sib txawv kom muaj ntau yam.
2.1 Qes Siab Ntau Ntau Yam
Ntawm cov qis qis dua (feem ntau hauv qab 0.1%), HPMC lwg me me tsis ua ib qho kev ua haujlwm txaus hauv dej. Txawm hais tias muaj qee qhov peev xwm nqus dej thiab cov nyhuv thickening, cov dej khaws cia yog txwv vim kev sib txuas lus tsis muaj zog. Nyob rau lub sijhawm no, cov dej khaws cov kev daws teeb meem tsuas yog nyob ntawm qhov muaj peev xwm ua tiav lub cev ntawm cov molecular txoj saw nws tus kheej.
2.2 nruab nrab ntawm thaj tsam
Thaum cov concentration ntawm HPMC nce mus rau ntawm 0.1% thiab 2%, cov kev sib txuam sib cuam tshuam yog txhim kho cov qauv network kom ruaj khov. Nyob rau lub sijhawm no, lub hom phiaj viscosity ntawm cov kev daws teeb meem nce siab, uas txhim kho cov dej ntes muaj peev xwm thiab dej khaws cia. HPMC Molecules tsim ib lub denser network los ntawm kev sib txuas ntawm lub cev sib txuas, ua kom qeeb qeeb ntws thiab evaporation ntawm dej. Yog li ntawd, cov dej khaws cia ntawm HPMC tau txhim kho hauv nruab nrab kev xav tau ntau yam.
2.3 siab siab ntau yam
Ntawm ntau dua cov kev sib haum (feem ntau tshaj li 2%), HPMC Molecules tau tsim cov qauv siv ntom nti heev thiab tab tom mus txog cov gel lub xeev. Hauv lub xeev no, HPMC muaj peev xwm ntes thiab khaws cov dej noo rau qhov loj tshaj plaws tau. Lub siab siab ntawm HPMC tseem ceeb nce lub peev xwm kav dej, pub nws ua pov thawj kev ua tau zoo hauv cov ntawv thov kom muaj dej siab.
3. Cov ntaub ntawv thov ntawm HPMC concentration thiab dej khaws cia
3.1 Kev Tsim Kho Vaj
Hauv kev tsim kab cug, HPMC txhim kho kev ua haujlwm, txo cov dej poob thaum lub sijhawm kev tsim kho, txuas lub sijhawm qhib ntawm cug. HPMC feem ntau yog siv nyob rau hauv cov neeg nplua nuj ntawm kev ua kom muaj 0.1% rau 1.0%, ntau uas sib tw ua kom muaj zog tso dej thiab cov tshuaj viscosity.
3.2 Daim Duab
Hauv cov ntsiav tshuaj, HPMC yog siv los ua cov khoom siv hluav taws xob Cov concentration ntawm cov kws tshuaj hauv chaw muag tshuaj feem ntau yog li 1% rau 5%, uas muab cov dej ua kom tsim nyog thiab siv yeeb tshuaj los ntawm cov ntsiav tshuaj.
3.3 teb cov zaub mov
Hauv kev lag luam khoom noj khoom haus, HPMC yog siv los ua cov tuab thiab ruaj khov thiab stabilizer txhawm rau txhim kho kev ntxhib los mos thiab dej khaws cia. Piv txwv li, ntxiv HPMC mus rau qhob cij tuaj yeem txhim kho cov dej khaws cia thiab softness ntawm lub khob noom cookie, feem ntau ntawm ntau ntawm 0.2% thiab 1%.
4. Kev ua kom ua tau zoo ntawm cov dej khaws cia los ntawm HPMC concentration
Ua kom zoo HPMC concentration rau kev ua kom zoo dua qub yuav tsum tau txiav txim siab txog kev sim ua kom muaj kev cuam tshuam nrog kev ua haujlwm thiab lwm yam ntawm kev daws teeb meem.
Cov concentration ntawm HPMC muaj qhov cuam tshuam tseem ceeb rau cov dej khaws cia ntawm txoj kev daws teeb meem. Ntawm cov kev ua kom muaj ntau, cov dej khaws cia; Ntawm nruab nrab kev sib haum, ib qho qauv siv network ruaj khov yog tsim los txhim kho cov dej khaws cia; Ntawm cov kev muaj siab, qhov siab tshaj plaws dej khaws cia ua tiav tau tiav. Cov qauv kev thov sib txawv muaj cov kev xav tau sib txawv rau HPMC kev saib xyuas, uas yuav tsum tau ua kom tiav raws li qhov kev sib npaug ntawm cov txiaj ntsig zoo tshaj plaws thiab ua haujlwm.
Lub Sijhawm Post: Feb-17-2025