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Hydroxypropyl methylcellulose – matope omangira Limbikitsani kumatira pamwamba pa matope, ndikuwonjezera kusunga madzi, kuti mphamvu ya matopewo ikhale yabwino. Kupaka mafuta bwino komanso kusinthasintha kwabwino kuti zinthu zigwiritsidwe ntchito bwino, kugwiritsa ntchito mosavuta kumasunga nthawi ndikukonza...Werengani zambiri»
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Cellulose hydroxypropyl methyl ether imapangidwa kuchokera ku cellulose yoyera kwambiri ya thonje kudzera mu etherification yapadera pansi pa mikhalidwe ya alkaline. zotsatira: 1. Makampani omanga: Monga chosungira madzi komanso choletsa matope a simenti, imatha kupangitsa matopewo kupopedwa. Mu pulasitala, gypsum, putty powder kapena...Werengani zambiri»
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1. Kutentha kwa gel (0.2% yankho) 50-90°C. 2. Sungunuka m'madzi ndi polar c yambiri komanso gawo loyenera la ethanol/madzi, propanol/madzi, dichloroethane, ndi zina zotero, osasungunuka mu ether, acetone, absolute ethanol, ndipo amatupa kukhala clear kapena turbid pang'ono mu colloidal solution yamadzi ozizira. Madzi ...Werengani zambiri»
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MC ndi methyl cellulose, yomwe imapangidwa ndi cellulose ether pochiza thonje loyengedwa ndi alkali, pogwiritsa ntchito methane chloride ngati etherification, ndikudutsa muzochitika zingapo. Kawirikawiri, mlingo wa kusintha ndi 1.6 ~ 2.0, ndipo kusungunuka kumasiyananso ndi madigiri osiyanasiyana a...Werengani zambiri»
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Hydroxypropyl methylcellulose ya mankhwala a tsiku ndi tsiku ndi polima yopangidwa kuchokera ku thonje lachilengedwe la cellulose kudzera mu kusintha kwa etherification. Cellulose ether ndi yochokera ku cellulose yachilengedwe. Kupanga kwa cellulose ether ndi kosiyana ndi ma polima opangidwa. Ndi chinthu chofunikira kwambiri...Werengani zambiri»
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Kuonjezera hydroxypropyl methylcellulose kuti apange ufa wa putty, kukhuthala kwake sikophweka kukhala kwakukulu kwambiri, kukhuthala kwambiri kungayambitse kusagwira ntchito bwino, ndiye kodi kukhuthala kotani komwe hydroxypropyl methylcellulose imafunika pa ufa wa putty? Tiyeni tiwunikenso kwa aliyense. Ndi bwino kuwonjezera hydroxypropyl methylc...Werengani zambiri»
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Mu simenti ndi matope okhala ndi gypsum, hydroxypropyl methylcellulose imagwira ntchito makamaka posunga ndi kukhuthala kwa madzi, ndipo imatha kukonza bwino kukana kwa matope ndi kukana kutsika. Zinthu monga kutentha kwa mpweya, kutentha ndi liwiro la kuthamanga kwa mphepo zimakhudza kusinthasintha...Werengani zambiri»
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1. Mavuto omwe amapezeka mu ufa wa putty Kuuma mwachangu: Izi zimachitika makamaka chifukwa cha kuchuluka kwa ufa wa calcium wa lime womwe umawonjezeredwa (wochuluka kwambiri, kuchuluka kwa ufa wa calcium wa lime womwe umagwiritsidwa ntchito mu fomula ya putty kumatha kuchepetsedwa moyenera) kumagwirizana ndi kuchuluka kwa madzi omwe amasungidwa mu ulusi, ndipo kumagwirizananso ndi dry...Werengani zambiri»
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Kuuma mwachangu Izi zimachitika makamaka chifukwa cha kuwonjezera kwambiri ufa wa calcium wa phulusa (kuchuluka kwa ufa wa calcium wa phulusa womwe umagwiritsidwa ntchito mu fomula ya putty kumatha kuchepetsedwa moyenera) kumagwirizana ndi kuchuluka kwa madzi omwe amasungidwa mu hydroxypropyl methylcellulose, komanso kumagwirizana ndi kuuma kwa khoma. Kuchotsa...Werengani zambiri»
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Hydroxypropyl methylcellulose ndi ether ya cellulose yosakhala ionic yomwe imakonzedwa kuchokera ku thonje loyengedwa kudzera muzochita zosiyanasiyana za mankhwala. Ndi chinthu choyera chopanda fungo, chopanda poizoni chomwe chimasungunuka m'madzi ndikupereka yankho loyera kapena lamtambo pang'ono la colloidal. Lili ndi makhalidwe a t...Werengani zambiri»
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Dzina lachi China la HPMC ndi hydroxypropyl methylcellulose. Si ionic ndipo nthawi zambiri imagwiritsidwa ntchito ngati chosungira madzi mu matope osakanikirana ndi madzi. Ndi chinthu chosungira madzi chomwe chimagwiritsidwa ntchito kwambiri mu matope. Chopangidwa ndi ether chochokera ku polysaccharide chomwe chimapangidwa ndi alkalization ndi etherification. Sichili ndi...Werengani zambiri»
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1. Mavuto omwe amapezeka mu ufa wa putty umauma mwachangu Izi zimagwirizana kwambiri ndi kuchuluka kwa ufa wa calcium wowonjezeredwa (wochuluka kwambiri, kuchuluka kwa ufa wa calcium wogwiritsidwa ntchito mu fomula ya putty kumatha kuchepetsedwa moyenera) komanso kuchuluka kwa madzi osungira hydroxypropyl methylcellulose (HPMC), ndipo imapangidwanso...Werengani zambiri»