A cikin abun da ke ciki na busassun busassun turmi, methyl cellulose yana da ƙananan ƙananan adadin adadin, amma yana da wani abu mai mahimmanci wanda zai iya inganta haɓakawa da aikin ginin turmi. Don sanya shi a sauƙaƙe, kusan dukkanin abubuwan haɗin rigar turmi waɗanda za a iya gani da ido tsirara ana samar da su ta hanyar ether cellulose. Samfurin cellulose ne da aka samu ta hanyar amfani da cellulose daga itace da auduga, yana amsawa da soda caustic, da kuma kawar da shi tare da wakili mai hana ruwa.
Nau'in Methyl Cellulose Ether
A. Hydroxypropyl methylcellulose (HPMC) an yi shi ne da auduga mai tsafta mai tsafta a matsayin ɗanyen abu, wanda aka keɓe musamman a ƙarƙashin yanayin alkaline.
B. Hydroxyethyl methyl cellulose (HEMC), ether wanda ba na ionic cellulose ba, fari ne mai fari, mara wari kuma maras ɗanɗano.
C. Hydroxyethylcellulose (HEC) wani nau'in surfactant ne wanda ba na ionic ba, fari a bayyanarsa, mara wari da rashin ɗanɗano kuma foda mai sauƙi.
Na sama su ne wadanda ba ionic cellulose ethers, da ionic cellulose ethers (irin su carboxymethyl cellulose (CMC)).
Lokacin amfani da busassun turmi foda, saboda ionic cellulose (CMC) ba shi da kwanciyar hankali a gaban ions alli, da wuya a yi amfani da shi a cikin tsarin gelling na inorganic tare da siminti da lemun tsami a matsayin kayan siminti. A wasu wurare a kasar Sin, Wasu bangon bangon ciki da aka sarrafa tare da sitaci da aka gyara a matsayin babban kayan siminti da Shuangfei foda kamar yadda filler ke amfani da CMC a matsayin thickener, amma saboda wannan samfurin yana da sauƙi ga mildew kuma ba shi da ruwa, an cire shi a hankali. ta kasuwa . A halin yanzu, ether cellulose da aka fi amfani dashi a kasar Sin shine HPMC.
Ana amfani da ether na cellulose galibi azaman wakili mai riƙe ruwa da kauri a cikin kayan tushen siminti.
Aikin kiyaye ruwa nasa na iya hana na’urar shan ruwa da yawa da sauri da kuma hana fitar ruwa, ta yadda simintin ya samu isasshen ruwa idan ya sha ruwa. Ɗauki aikin plastering a matsayin misali. Lokacin da aka yi amfani da slurry na siminti na yau da kullun a saman ƙasan, busassun busassun busassun busassun za su sha ruwa mai yawa daga slurry ɗin da sauri, kuma simintin slurry ɗin da ke kusa da substrate zai iya rasa hydration cikin sauƙi. Sabili da haka, ba wai kawai ba zai iya samar da gel ɗin ciminti tare da ƙarfin mannewa a saman ƙasa ba, amma kuma cikin sauƙi yana haifar da warping da zubar da ruwa, don haka saman ciminti slurry Layer yana da sauƙin faɗuwa. Lokacin da grout da aka yi amfani da shi yana da bakin ciki, yana da sauƙi don samar da fasa a cikin dukan grout. Don haka, a cikin aikin gyare-gyaren da ya gabata, ana jika kayan tushe da ruwa da farko, amma wannan aikin yana da ƙwazo kuma yana ɗaukar lokaci, kuma ingancin aiki yana da wuyar sarrafawa.
Gabaɗaya magana, riƙewar ruwa na siminti slurry yana ƙaruwa tare da haɓaka abun ciki na ether cellulose. Mafi girman danko na ƙarar ether cellulose, mafi kyawun riƙewar ruwa.
Baya ga riƙe ruwa da kauri, cellulose ether kuma yana shafar sauran kaddarorin siminti turmi, kamar ja da baya, shigar iska, da ƙara ƙarfin haɗin gwiwa. Cellulose ether yana rage saiti da tsarin aikin siminti, ta haka yana tsawaita lokacin aiki, don haka ana amfani da shi a wasu lokuta azaman mai daidaitawa.
Tare da haɓakar busassun busassun turmi, ether cellulose ya zama mahimmancin simintin siminti admixture. Duk da haka, akwai nau'o'in iri da ƙayyadaddun bayanai na ether cellulose, kuma ingancin tsakanin batches har yanzu yana canzawa.
Hakanan kuna buƙatar kulawa lokacin amfani:
1. Halayen aiki na turmi da aka gyara suna da alaƙa da haɓakar danko na ether cellulose. Ko da yake samfuran da ke da ɗanko mai ƙima suna da ɗanƙon ɗanko na ƙarshe, saboda jinkirin rushewa, yana ɗaukar lokaci mai tsawo don samun ɗanko na ƙarshe; Bugu da kari , The cellulose ether tare da m barbashi daukan lokaci mai tsawo don samun karshe danko, don haka samfurin tare da mafi girma danko ba dole ba ne da mafi alhẽri aiki halaye.
2. Saboda iyakancewar digiri na polymerization na cellulose ether albarkatun kasa, matsakaicin danko na ether cellulose kuma yana iyakance.
3. Wajibi ne don duba sayan, tsarin samarwa da kuma binciken masana'anta don kauce wa haɓakar inganci.
Lokacin aikawa: Maris 29-2023