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01. Kuyambitsa cellulose Cellulose ndi polysaccharide yayikulu yopangidwa ndi shuga. Sisungunuka m'madzi ndi zinthu zina zachilengedwe. Ndi gawo lalikulu la khoma la maselo a zomera, komanso ndi polysaccharide yofalikira kwambiri komanso yochuluka kwambiri m'chilengedwe. Cellulose ndiye mos...Werengani zambiri»
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Mu matope osakaniza bwino, bola ngati ether ya cellulose ingawongolere kwambiri magwiridwe antchito a matope onyowa, zitha kuwoneka kuti ether ya cellulose ndi chowonjezera chachikulu chomwe chimakhudza magwiridwe antchito a matope. "Kusankha mitundu yosiyanasiyana, kukhuthala kosiyana, kusiyana...Werengani zambiri»
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Mtondo woteteza kutentha wa EPS ndi chinthu chopepuka choteteza kutentha chomwe chimasakanizidwa ndi zomangira zopanda organic, zomangira zachilengedwe, zosakaniza, zowonjezera ndi zomangira zopepuka mu gawo linalake. Pakati pa zomangira zoteteza kutentha za EPS zomwe zikufufuzidwa ndikugwiritsidwa ntchito pano, zitha kubwezeretsedwanso...Werengani zambiri»
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Cellulose ether ndi polima yopanda ionic semi-synthetic, yomwe imasungunuka m'madzi komanso imasungunuka ndi zosungunulira. Ili ndi zotsatira zosiyanasiyana m'mafakitale osiyanasiyana. Mwachitsanzo, mu zipangizo zomangira mankhwala, ili ndi zotsatira zotsatirazi: ①Chosungira madzi ②Chokhuthala ③Kulinganiza ④Kupanga filimu...Werengani zambiri»
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Mbiri Yofufuza Monga chuma chachilengedwe, chochuluka komanso chobwezerezedwanso, cellulose imakumana ndi zovuta zazikulu pakugwiritsa ntchito chifukwa cha mphamvu zake zosasungunuka komanso zochepa zosungunulira. Ma crystallinity apamwamba komanso ma hydrogen bond apamwamba mu kapangidwe ka cellulose zimapangitsa kuti iwonongeke koma osati ine...Werengani zambiri»
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Monga chinthu chofunikira kwambiri popanga zinthu zouma zosakaniza ndi matope, cellulose ether imagwira ntchito yofunika kwambiri pakugwira ntchito ndi mtengo wa matope ouma. Pali mitundu iwiri ya ma cellulose ether: imodzi ndi ionic, monga sodium carboxymethyl cellulose (CMC), ndipo inayo si ionic, monga methyl ...Werengani zambiri»
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Cellulose ether ndi polima yopanda ionic semi-synthetic, yomwe imasungunuka m'madzi komanso imasungunuka ndi zosungunulira. Ili ndi zotsatira zosiyanasiyana m'mafakitale osiyanasiyana. Mwachitsanzo, mu zipangizo zomangira mankhwala, ili ndi zotsatira zotsatirazi: ① chosungira madzi ② chokhuthala ③ choleza ④ filimu-...Werengani zambiri»
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Kukonzanso kwa matope kumakhudzanso zotsatira zosiyanasiyana. Pakadali pano, matope ambiri opangidwa ndi miyala ndi pulasitala ali ndi magwiridwe antchito osasunga madzi, ndipo matope amadzi amalekanitsidwa patatha mphindi zochepa atayima. Chifukwa chake ndikofunikira kwambiri kuwonjezera ether ya cellulose mu matope a simenti. Tiyeni ...Werengani zambiri»
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Cellulose ether ndi polima ya molekyulu yopanda ionic yopangidwa ndi semi-synthetic, yomwe imasungunuka m'madzi komanso imasungunuka ndi zosungunulira. Imakhala ndi zotsatira zosiyanasiyana m'mafakitale osiyanasiyana. Mwachitsanzo, mu zipangizo zomangira mankhwala, imakhala ndi zotsatira zotsatirazi: ①Chosungira madzi ②Chokhuthala ③Chothandizira...Werengani zambiri»
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Hydroxypropyl methylcellulose ndi ether ya cellulose yosakhala ionic yomwe imapezeka kuchokera ku thonje loyengedwa bwino, chinthu chachilengedwe cha polima, kudzera mu njira zingapo zamakemikolo. Amagwiritsidwa ntchito makamaka mumakampani omanga: ufa wa putty wosalowa madzi, putty phala, putty wofewa, guluu wa utoto, matope opaka pulasitala...Werengani zambiri»
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1. Ufa wa putty umauma mwachangu Yankho: Izi zimagwirizana kwambiri ndi kuwonjezera calcium ya phulusa ndi kuchuluka kwa ulusi wosunga madzi, komanso zokhudzana ndi kuuma kwa khoma. 2. Ufa wa putty umasenda ndi kuzunguliza Yankho: Izi zimagwirizana ndi kuchuluka kwa madzi osunga, komwe kumakhala kosavuta kuchitika pamene ...Werengani zambiri»
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Methylcellulose (MC) Fomula ya molekyulu ya methylcellulose (MC) ndi iyi: [C6H7O2(OH)3-h(OCH3)n\]x Njira yopangira ndi kupanga cellulose ether kudzera muzochita zingapo thonje loyengedwa litakonzedwa ndi alkali, ndipo methyl chloride imagwiritsidwa ntchito ngati etherification. Kawirikawiri, degr...Werengani zambiri»