HydroxyPropyyl methylcellulose, da dej, tshuaj ntxuav tes, khoom siv tshuaj lom neeg niaj hnub, thiab muaj cov nyhuv ntawm thickening thiab tiv thaiv kev ua kua.
Cov khoom lag luam zoo ib yam rau Hydroxymethyl cellulose Cellulose Hydropropyl cellulose mhpc, hydroxyethyl cellulose Hec. Ntawm cov tshuaj no, hydroxyethyl cellulose ether muaj qhov zoo tshaj plaws hauv kev ua haujlwm txhua hnub. Vim li cas? Lub tsev saib xyuas kev ua raws li cov lus qhia hauv qab no.
Cov tshuaj txhua hnub 200,000 s viscrocosity holroxyprropylulose yog ib qho dawb lossis me ntsis hmoov daj, thiab tsis muaj ntxhiab thiab tsis muaj tshuaj lom. Nws yog soluble nyob rau hauv dej txias thiab tov nrog organic cov kuab tshuaj los tsim cov tshuaj pleev pob tshab. Cov kua roj aque muaj cov kev ua si saum npoo av, High Transparency, muaj zog ruaj khov, thiab tsis cuam tshuam los ntawm pH thaum yaj hauv dej. Txhua hnub tshuaj lom neeg qib hydroxypropyl muaj cov tshuaj zawv plaub hau thiab cov tshuaj tiv thaiv da dej, thiab muaj cov dej tuav cia rau cov plaub hau thiab tawv nqaij. Nrog rau cov txiaj ntsig nce ntau ntxiv hauv cov ntaub ntawv nyoos, cellulose (tshuaj tiv thaiv tuab) kuj tuaj yeem siv hauv cov nqi zawv plaub hau thiab lub cev ntxuav kom txo cov nqi thiab ua tiav cov txiaj ntsig. Hais txog kev ruaj ntseg thiab kev ua tau zoo, HEC muaj zog dua li lwm cov khoom lag luam hauv daim ntawv thov tshuaj txhua hnub.
HydroxyPropyyl methylulose li tsis yog-ionic surfactant. Nws muaj cov haujlwm ntawm thickening, kev sib raug zoo, flotation, zaj duab xis-forming, retaining dej thiab muab kev tiv thaiv dej thiab muab kev tiv thaiv kev tiv thaiv. Ntawm cov khoom no yog cov kev tiv thaiv thiab dej-khaws cov kev cuam tshuam ntawm colloids. Nws yog ib qho tseem ceeb heev hauv daim ntawv thov ntawm daim teb tshuaj txhua hnub.
Txhua hnub tshuaj qib ua haujlwm tshwj xeeb 200,000 s viscubosity yog soluble nyob rau hauv dej txias thiab dej txias, thiab insoluble nyob rau hauv feem ntau cov kuab tshuaj muaj xwm txheej. Kev kub siab lossis npau npau tsis daus, muab nws ntau qhov solubility thiab viscosity cov khoom. Kuj tsis-thermogelling. Post-thickening cov teebmeem yog tsawg heev. HPMC stability yog qhov zoo heev.
Nyob rau hauv daim ntawv thov ntawm hydroxypropyl cellulose ether hauv kev ua tshuaj txhua hnub, vim tias HPMC muaj cov ntaub ntawv saum toj no txhua hnub, emulsifier thiab pulsifier thiab binder nyob rau hauv txhua yam tsim nyog. Thaum tus niam dej cawv yog siv, HPMC yuav tsum yog sieved mus rau qee qhov nyiaj ntawm cov dej thaum lub sij hawm cov txheej txheem stirringed, thiab yuav tsum tsis txhob duav lossis nchuav. Tsis txhob nres nplawm kom txog rau thaum muaj kev paub niam zoo thiab du thiab du. Tsis txhob ntxiv lwm yam tshuaj, kom tsis txhob cuam tshuam rau tus nqi ntawm lub system. Xav kom zoo dua txhim kho qhov zoo ntawm cov khoom. Nws raug nquahu kom tsim nyog rau qhov kub thiab txias thiab ph ntawm lub system.
Lub Sijhawm Post: Feb-20-2025