01. Qhov txawv ntawm fake hydroxypropyl methyl thiab high-zoo hydroxypropyl methyl
Cov tsos mob: Pure hmoov txhuv nplej siab HPCM zoo nkaus li homogeneous, ntawm 0.3 thiab 0.4 g / ml. Amylum khi rau cov hmoov txhuv nplej siab yog li HPCM yog cov kua thiab tsis tshua muaj kev ntxhov siab dua li cov tshuaj detoxifiers.
Cov xwm txheej: hmoov txhuv nplej siab tag nrho ntawm cov hmoov txhuv nplej siab, hmoov nplej hmoov nplej, hmoov nplej, fiber ntau nyob rau hauv lub tshuab tsom iav lossis lub iav tsom iav, HPCM ib hom hmoov txhuv nplej siab uas tuaj yeem tswj cov hmoov txhuv nplej siab lossis hmoov txhuv nplej siab thiab lentils.
Cov ntxhiab tsw: ntshiab hydroxypropyl methylcellulose HPMC tsis tuaj yeem hnov qab ammonia, hmoov txhuv nplej siab thiab cawv; HPMC cov tshuaj tua kab mob tsis zoo tuaj yeem hnov ntxhiab tsw, txawm tias nws tsis qab los, nws yuav hnov tsis muaj zog Shen.
Aqueous tov: ntshiab, HPMC methylcellulose demethoxypropyl brinzolamide aqueous tov yog ntshiab, lub teeb dej tuav tus nqi ≥ 97%; diluted hydrolyzed cellulose-diluted HPMC hydrolyzed cellulose yog ntau turbid, dej tuav tus nqi NW nyuam qhuav mus txog 80%.
02. Kev khaws cia ntawm methyl cellulose ntawm qhov kub thiab txias yog qhov ntsuas tseem ceeb los txiav txim siab qhov zoo ntawm methyl cellulose ether. Cov yam ntxwv xws li huab cua kub, huab cua kub thiab cua ceev cuam tshuam rau cov volatility ntawm cement slurry thiab gypsum khoom. Yog li ntawd, ntxiv tib tus nqi ntawm HPMC cov khoom hauv lub caij sib txawv, muaj qee qhov sib txawv ntawm kev txuag dej. Hauv cov txheej txheem ua haujlwm tshwj xeeb, cov nyhuv ntawm moisturizing serosa tuaj yeem raug kho los ntawm kev txo tus nqi ntawm HPMC ntxiv. High-zoo hydroxypropyl methylcellulose HPMC tuaj yeem daws qhov teeb meem ntawm cov dej kub ceev.
Cov khoom zoo methyl cellulose tuaj yeem sib npaug thiab muaj txiaj ntsig zoo hauv cov khoom siv cement mortar thiab plastering, tsim cov yeeb yaj kiab tag nrho, uas maj mam tso tawm ntawm lub hauv paus txheej thiab tsim cov tshuaj tiv thaiv hydrophilic nrog cov ntaub ntawv inorganic curling, yog li ua kom lub 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 cellulose molecular yog zoo ib yam, uas txhim kho cov pa oxygen thiab hydrogen bonding ntawm txhua tus atom tseem ceeb ntawm hydroxyl thiab ether Cov dej tsawg tuaj yeem hloov dej dawb rau hauv cov tawv nqaij-txuag dej, yog li tswj tau cov dej noo-tiv taus, thiab kev sib txuas ntawm hydrogen bonding ntawm txhua tus atom ntawm hydroxyl thiab ether.
Vim yog kev tsim kho kub hauv lub caij ntuj sov, txhawm rau ua tiav cov txiaj ntsig ntawm kev txuag dej, nws yog ib qho tsim nyog yuav tsum tau ntxiv cov khoom zoo HPMC raws li cov qauv, txwv tsis pub nws yuav ua rau muaj teeb meem xws li ziab ntau dhau, tsis muaj zog, tawg, tsis muaj kev poob siab thiab kev poob qis, thiab ua rau muaj kev nyuaj ntawm kev tsim kho rau cov neeg ua haujlwm. Thaum txo qhov kub thiab txias, nws muaj peev xwm maj mam txo tus nqi ntawm HPMC ntxiv thiab tau txais cov txiaj ntsig zoo li qub.
Post lub sij hawm: Apr-21-2023