Tasirin haɓakar iska na ether cellulose

Cellulose ethers su ne polymers na roba da aka yi daga cellulose na halitta kuma an gyara su ta hanyar sinadarai. Cellulose ether wani abu ne na cellulose na halitta. Ba kamar polymers na roba ba, samar da ether cellulose yana dogara ne akan cellulose, mafi mahimmancin abu, fili na polymer na halitta. Saboda ƙayyadaddun tsarin tsarin cellulose na halitta, cellulose kanta ba ta da ikon amsawa tare da etherizing jamiái. Duk da haka, bayan maganin solubilizers, haɗin gwiwar hydrogen mai karfi tsakanin da kuma a cikin sassan kwayoyin halitta ya lalace, kuma aikin ƙungiyar hydroxyl yana fitowa cikin alkali cellulose tare da ikon amsawa, kuma bayan amsawa na etherizing wakili an canza kungiyar OH. a cikin ƙungiyar OR don samun ether cellulose.

Cellulose ethers suna da tabbataccen tasiri na motsa iska akan sabbin kayan siminti da aka haɗe. Cellulose ethers suna da duka hydrophilic (hydroxyl, ether) da kuma hydrophobic (methyl, glucose zobe) ƙungiyoyi kuma su ne surfactants da surface aiki da haka suna da wani iska-entraining sakamako. Hanyoyin haɓakar iska na ether cellulose zai haifar da sakamako na "ball", wanda zai iya inganta aikin aiki na sabon abu, irin su ƙara filastik da santsi na turmi yayin aiki, wanda ke da amfani ga yada turmi; zai kuma inganta yawan turmi da rage tsadar turmi; duk da haka, zai ƙara porosity na kayan da aka taurare kuma ya rage ƙarfinsa da kuma na roba, da dai sauransu. Mechanical Properties.

A matsayin surfactant, cellulose ether kuma yana da wani wetting ko lubricating sakamako a kan siminti barbashi, wanda tare da iska-entraining sakamakon yana kara yawan ruwa na siminti kayan, amma ta thickening sakamako rage fluidity, da kuma tasirin cellulose ether a kan fluidity. siminti kayan hade ne na roba da kuma thickening effects. Gabaɗaya magana, lokacin da adadin ether cellulose ya ragu sosai, galibi yana nuna tasirin filastik ko rage ruwa; lokacin da adadin ya yi yawa, tasirin ƙwayar cellulose ether yana ƙaruwa da sauri, kuma tasirin sa na iska yana kula da saturate, don haka yana nuna tasiri mai girma ko ƙara yawan abin da ake bukata na ruwa.