Admixtures suna taka muhimmiyar rawa wajen inganta aikin ginin busasshen turmi. Abubuwan da ke biyowa suna yin nazari da kwatanta ainihin kaddarorin latexr foda da cellulose, da kuma nazarin aikin busassun kayan turmi da aka yi amfani da su ta hanyar amfani da addmixtures.
Redispersible latex foda
Redispersible latexr foda ana sarrafa ta feshi bushewa na musamman polymer emulsion. Abubuwan da aka bushe Lawxr foda shine wasu ƙwayoyin spherical na 80 ~ 100mal sun hallara tare. Wadannan barbashi ne mai narkewa a cikin ruwa da kuma samar da wani barga watsawa dan kadan ya fi girma fiye da na asali emulsion barbashi, wanda samar da wani fim bayan dehydration da bushewa.
Matakan gyare-gyare daban-daban suna sa foda na latex wanda za'a iya rarrabawa yana da kaddarorin daban-daban kamar juriya na ruwa, juriya na alkali, juriya na yanayi da sassauci. latexr foda da aka yi amfani da shi a cikin turmi na iya inganta juriya mai tasiri, dorewa, juriya, sauƙi na ginawa, ƙarfin haɗin gwiwa da haɗin kai, juriya na yanayi, juriya-narke, rashin ruwa, ƙarfin lanƙwasa da ƙarfin sassauƙa na turmi.
Cellulose ether
Cellulose ether shine kalma na gaba ɗaya don jerin samfurori da aka samar ta hanyar amsawar alkali cellulose da etherifying wakili a ƙarƙashin wasu yanayi. Alkali cellulose an maye gurbinsu da daban-daban etherifying jamiái don samun daban-daban cellulose ethers. Dangane da kaddarorin ionization na masu maye, ana iya raba ethers cellulose zuwa kashi biyu: ionic (kamar carboxymethyl cellulose) da wadanda ba ionic (kamar methyl cellulose). Dangane da nau'in maye gurbin, ana iya raba ether cellulose zuwa monoether (kamar methyl cellulose) da ether gauraye (kamar hydroxypropyl methyl cellulose). A cewar daban-daban solubility, shi za a iya raba ruwa-soluble (kamar hydroxyethyl cellulose) da Organic sauran ƙarfi-soluble (kamar ethyl cellulose), da dai sauransu Dry-mixed turmi ne yafi ruwa-soluble cellulose, da ruwa-soluble cellulose ne. an raba zuwa nau'in nan take da nau'in jinkirin da aka jiyya da shi.
Hanyar aikin ether cellulose a cikin turmi shine kamar haka:
(1) Bayan da cellulose ether a cikin turmi aka narkar da a cikin ruwa, da tasiri da kuma uniform rarraba siminti abu a cikin tsarin da aka tabbatar saboda da surface aiki, da kuma cellulose ether, a matsayin m colloid, "nannade" m. barbashi da kuma wani Layer na lubricating fim da aka samu a kan ta waje surface, wanda ya sa tsarin turmi ya fi kwanciyar hankali, da kuma inganta ruwa na turmi a lokacin hadawa tsari da kuma santsi na gini.
(2) Saboda tsarinsa na kwayoyin halitta, maganin cellulose ether ya sa ruwan da ke cikin turmi ba shi da sauƙi a rasa, kuma a hankali ya sake shi na tsawon lokaci, yana ba da turmi mai kyau na ruwa da kuma aiki.
itace fiber
Ana yin fiber na itace da tsire-tsire a matsayin babban kayan da aka sarrafa kuma ana sarrafa shi ta hanyar fasahar fasaha, kuma aikin sa ya bambanta da na ether cellulose. Manyan kaddarorin sune:
(1) Ba a narkewa a cikin ruwa da abubuwan kaushi, da kuma rashin narkewa a cikin raunin acid da raunin tushe
(2) Aiwatar a cikin turmi, zai zoba cikin tsari mai girma uku a cikin wani tsayayyen yanayi, ƙara juriya na thixotropy da sag na turmi, kuma inganta haɓakawa.
(3) Saboda tsarin nau'i uku na fiber na itace, yana da dukiya na "kulle ruwa" a cikin turmi mai gauraye, kuma ruwan da ke cikin turmi ba zai zama mai sauƙi ba ko cirewa. Amma ba shi da babban riƙewar ruwa na ether cellulose.
(4) Kyakkyawan sakamako mai kyau na fiber na itace yana da aikin "gudanar ruwa" a cikin turmi, wanda ya sa saman da kuma danshi na ciki na turmi ya kasance daidai, ta haka ne ya rage raguwa da lalacewa ta hanyar rashin daidaituwa.
(5) Fiber na itace na iya rage damuwa na nakasar turmi mai tauri da rage raguwa da fashewar turmi.
Lokacin aikawa: Maris-10-2023