01. Qhov txawv ntawm hydroxypropyl methyl cuav thiab hydroxypropyl methyl zoo
Tsos: Hmoov txhuv nplej siab HPCM zoo li sib xws dhau, ntawm 0.3 thiab 0.4 g/ml. Amylum khi rau hmoov txhuv nplej siab yog li HPCM yog kua thiab tsis tshua muaj kev ntxhov siab dua li cov tshuaj detoxifiers ib txwm muaj.
Cov xwm txheej: hmoov txhuv nplej siab puv nrog hmoov txhuv nplej siab, hpm hmoov, fiber ntau hauv qab lub tshuab tsom iav lossis lub iav loj, HPCM ib hom hmoov txhuv nplej siab uas tuaj yeem tswj cov hmoov txhuv nplej siab lossis hmoov txhuv nplej siab thiab taum pauv.
Tsw: Hydroxypropyl methylcellulose HPMC ntshiab tsis tuaj yeem hnov tsw ammonia, hmoov txhuv nplej siab thiab cawv; adulterated hydroxypropyl methylcellulose HPMC tuaj yeem hnov txhua yam ntxhiab tsw, txawm tias nws tsis muaj saj, nws yuav xav tias tsis muaj zog Shen.
Cov kua dej: ntshiab, HPMC methylcellulose demethoxypropyl brinzolamide cov kua dej yog pob tshab, lub teeb dej khaws cia tus nqi ≥ 97%; diluted hydrolyzed cellulose-diluted HPMC hydrolyzed cellulose yog turbid ntau, lub dej khaws cia tus nqi tsuas yog ncav cuag 80%.
02. Kev khaws cia ntawm methyl cellulose ntawm qhov kub siab yog qhov qhia tseem ceeb los txiav txim siab qhov zoo ntawm methyl cellulose ether. Cov yam xws li qhov kub thiab txias ntawm huab cua, qhov kub thiab txias ntawm huab cua thiab cua ceev cuam tshuam rau qhov volatility ntawm cov cement slurry thiab cov khoom gypsum. Yog li ntawd, ntxiv tib yam ntawm cov khoom HPMC hauv ntau lub caij sib txawv, muaj qee qhov sib txawv hauv kev txuag dej. Hauv cov txheej txheem ua haujlwm tshwj xeeb, cov nyhuv ntawm moisturizing serosa tuaj yeem kho tau los ntawm kev txo qhov ntau ntawm HPMC ntxiv. Cov hydroxypropyl methylcellulose HPMC zoo tuaj yeem daws tau qhov teeb meem ntawm kev khaws cia dej kub siab.
Cov methyl cellulose zoo tuaj yeem faib tau zoo thiab zoo hauv cov cement mortar thiab plastering cov khoom, tsim cov zaj duab xis khov kho, uas maj mam tso tawm ntawm cov txheej hauv paus thiab tsim cov tshuaj hydrophilic nrog cov ntaub ntawv inorganic curling, yog li ua kom muaj zog thiab tawv. HPMC cellulose methyl propoxylate yog qhov zoo thiab sib xws, thiab cov pa oxygen ntawm ethyl bromide thiab propionic acid pawg raws li cov saw molecular cellulose yog sib xws, uas txhim kho cov pa oxygen thiab hydrogen sib txuas ntawm txhua lub atom tseem ceeb ntawm hydroxyl thiab ether Cov dej qis tuaj yeem hloov cov dej dawb mus rau hauv cov dej txuag tawv, yog li tswj tau cov dej evaporation, tsim kom muaj cua sov, thiab cov dej noo siab.
Vim yog qhov kub siab ntawm kev tsim kho thaum lub caij ntuj sov, txhawm rau kom ua tiav cov txiaj ntsig ntawm kev txuag dej, nws yog qhov tsim nyog los ntxiv cov khoom lag luam HPMC zoo raws li cov mis, txwv tsis pub nws yuav ua rau muaj teeb meem xws li qhuav dhau, tsis muaj zog, tawg, tsis ua haujlwm thiab tso tseg, thiab ua rau muaj teeb meem ntawm kev tsim kho rau cov neeg ua haujlwm. Thaum txo qhov kub thiab txias, nws muaj peev xwm maj mam txo cov nyiaj ntawm HPMC ntxiv thiab tau txais cov txiaj ntsig txuag dej zoo ib yam.
Lub sijhawm tshaj tawm: Plaub Hlis-21-2023