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 a cikin alkali cellulose tare da ikon amsawa, kuma bayan amsawar wakili na etherizing an canza ƙungiyar OH zuwa 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 matsayinsa na surfactant, cellulose ether shima yana da tasirin jika ko lubricating akan barbashi na siminti, wanda tare da tasirin sa na iska yana kara yawan ruwan siminti, amma tasirinsa na kauri yana rage yawan ruwa, kuma tasirin ether na cellulose akan ruwan simintin kayan yana hade ne da yin filastik da kuma kauri. 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.