HydroxyPropyyl methylcellulose (HPMC)yog cov neeg nonionic cellulose ether nrog ntau cov ntawv thov. Cov hauv qab no yog cov yam ntxwv tseem ceeb ntawm HPMC:
1. Tshuaj lom neeg
HPMC yog cov ntaub ntawv nonionic ether ether refined los ntawm cov khoom siv polymer los ntawm cov khoom siv alkalization thiab etherification kev tiv thaiv. Nws tsuas yog sib xyaw ntawm methoxy (-ochiv) thiab hydroxyprropoxy (-och₂hohch₃) hloov pab pawg hydroxyl. Cov qib degree txiav txim siab nws solubility, gelation ntsuas kub, viscosity thiab lwm yam ntxwv.
2. Dej Solubility Thiab Thermal Gelation
HPMC tawg nyob rau hauv dej txias los tsim lub pob tshab lossis cov tshuaj tsis muaj kev daws teeb meem, tab sis gels hauv dej kub. Raws li qhov kub nce, lub Kimacell® A aqueous maj mam poob qis viscosity thiab ua ib gel. Cov cuab yeej no tau siv dav hauv kev tsim kho, tshuaj thiab khoom noj. Piv txwv li, hauv cov ntaub ntawv hauv tsev, HPMC tuaj yeem txhim kho cov dej khib nyiab, thaum nyob hauv kev lag luam khoom noj khoom haus nws tuaj yeem siv los ua cov thickener thiab stabilizer.
3. Thickening cov cuab yeej
HPMC kev daws teeb meem tau muaj cov khoom zoo heev thickening thiab tuaj yeem muab viscosity ntau dua ntawm kev txo qis. Nws yog dav siv rau cov tsho tiv no, ci ntsa iab, tsev mortars thiab lwm thaj teb. Lub viscos ntawm HPMC nyob ntawm nws qib ntawm polymerization thiab hloov. Cov neeg siv tuaj yeem xaiv cov khoom uas muaj viscosities txawv raws li lawv cov kev xav tau.
4. Dej Tuav
Lub luag haujlwm ntawm HPMC hauv kev tsim kho yog txhawm rau txhim kho cov dej sib tov thiab cov khoom siv roj av, txo qis kev ua haujlwm thiab lub zog ua haujlwm zaum kawg. Hauv kev lag luam txheej sib kev lag luam, HPMC pab tiv thaiv cov xim nag lossis kev txhim kho cov khoom sib dhos.
5. Zaj duab xis-ua cov cuab yeej
HPMC tuaj yeem tsim cov pob tshab thiab hloov tau zaj duab xis nyob rau saum npoo. Cov cuab yeej no ua rau nws tseem ceeb hauv cov txheej txheem tshuaj, khoom noj txheej txheej, kev ua lag luam ceramic thiab lwm daim teb. Nws tuaj yeem txhim kho kev ruaj ntseg ntawm cov ntsiav tshuaj, tiv thaiv cov tshuaj kom tsis ntub, thiab muab cov saj zoo.
6. Lubricity thiab rhuaology
HPMC tuaj yeem txhim kho cov khoom siv hluav taws xob hauv cov tshuaj khib, pleev xim thiab lwm yam kev siv, ua kom cov khoom siv yooj yim los tsim. Piv txwv li, hauv cov nplais nplaum, HPMC tuaj yeem txhim kho lubricity, txo kev ua haujlwm tiv thaiv thiab txhim kho kev tsim kho kev tsim kho.
7. PHEEJ YEEM
HPMC tseem nyob ruaj khov nyob rau hauv lub Ph Thaj Tsam ntawm 3-11 thiab tsis yooj yim cuam tshuam los ntawm kua qaub thiab alkali, yog li nws tuaj yeem siv rau hauv ib puag ncig sib txawv. Txawm li cas los xij, nws viscosity tuaj yeem hloov lossis ua rau muaj cov kua qaub los yog alkali.
8. Cov kev ua si saum npoo
HPMC muaj qee qhov kev ua si ntawm cov nplaim dej thiab tuaj yeem siv rau emulsification, dispersion thiab ruaj khov ntawm cov tshuab ncua. Nws yog dav siv nyob rau hauv LowX txheej, tshuaj pleev ib ce thiab khoom noj khoom haus.
9. biocompatibility thiab kev nyab xeeb
HPMC muaj cov biocompatibility zoo thiab muaj kuab lom, yog li nws tau siv dav hauv tshuaj, khoom noj thiab cov tshuaj pleev ib ce thiab tshuaj pleev ib ce. Piv txwv li, hauv kev npaj tshuaj, HPMC tuaj yeem siv los ua cov ntsiav tshuaj binder, txhawb nqa tus neeg sawv cev-tso tawm, txheej txheem tus neeg sawv cev, thiab lwm yam.
10. Ntsev tsis kam
KimaCell® Tus neeg siv ntsev zoo rau cov ntsev (xws li sodium chloride, soc.cume, uas tso cai rau nws siv cov tshuab hluav taws xob, uas tso cai rau nws siv cov tshuab hluav taws xob.
Chaw thov
Cov ntaub ntawv hauv tsev: Siv hauv cov nplaum cug, gypsum khoom, siv cov hmoov av nplaum, ua kom muaj hmoov thiab dej rov ua haujlwm.
Kws Tshuaj Kev Lag Luam: Raws li cov tshuaj khaws cia, siv nyob rau hauv cov ntsiav tshuaj txheej, txhawb nqa tus neeg sawv cev, gel, thiab lwm yam.
Kev lag luam khoom noj khoom haus: Ua tuab, emulsifier, stabilizer, siv hauv cov khoom noj siv mis, ci, jelly, thiab lwm yam.
Cov xim pleev xim thiab cov xim tha xim: txhim kho rheology, thillening, kev ruaj khov, thiab txhim kho kev tsim kho kev ua haujlwm.
Cov khoom siv tshuaj txhua hnub: Siv hauv tshuaj zawv plaub hau, cov khoom tu tawv nqaij, tshuaj txhuam hniav, thiab lwm yam.
HPMCUa lub luag haujlwm tseem ceeb hauv ntau qhov kev lag luam vim nws cov khoom siv sudubility zoo, thickening, dej tuav thiab biocompatibility.
Lub sijhawm Post: Feb-09-2025