A cikin abun da ke ciki na busassun foda turmi.cellulose etherƙari ne mai mahimmanci tare da ƙaramin adadin ƙari, amma yana iya inganta haɓakar haɗawa da aikin ginin turmi. Don sanya shi a sauƙaƙe, kusan dukkanin kayan haɗin rigar turmi da 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, sa'an nan kuma ya ba da izini tare da wakili mai lalata.
Nau'in ethers cellulose
A. Hydroxypropyl methyl cellulose (HPMC), wanda aka fi yin shi da auduga mai tsabta mai tsabta a matsayin kayan albarkatun kasa, an sanya shi musamman a ƙarƙashin yanayin alkaline.
B. Hydroxyethyl methylcellulose (HEMC), Ba-ionic cellulose ether, shi ne farin foda a bayyanar, rashin wari da m.
C. Hydroxyethyl cellulose (HEC), Surfactant ba na ionic ba, fari a bayyanar, mara wari, mara daɗi da foda mai sauƙi.
Na sama su ne wadanda ba na 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 azaman babban kayan siminti da Shuangfei foda kamar yadda mai filler ke amfani da CMC azaman thickener. Duk da haka, saboda wannan samfurin yana da sauƙi ga mildew kuma ba shi da tsayayya ga ruwa, kasuwa yana kawar da shi a hankali. 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
Aikinsa na rike ruwa na iya hana na’urar shan ruwa da yawa 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 zuwa saman tushe, busassun busassun busassun busassun za su sha ruwa mai yawa daga slurry, kuma slurry na siminti kusa da tushe na tushe zai iya rasa ruwan da ake buƙata don hydration. , don haka ba kawai ba zai iya samar da wani ciminti gel tare da bonding ƙarfi a kan surface na substrate, amma shi ne kuma yiwuwa ga warping da ruwa seepage, sabõda haka, surface ciminti slurry Layer yana da sauki fada a kashe. Lokacin da grout da aka yi amfani da shi yana da bakin ciki, yana da sauƙi don samar da fasa a cikin dukan grout. Saboda haka, a cikin aikin plastering da ya gabata, ana amfani da ruwa don fara jika mashin ɗin, amma wannan aikin ba wai kawai aiki ne da ɗaukar lokaci ba, amma 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 raguwa da saitin da tsarin aiki na ciminti, don haka tsawaita lokacin aiki. Saboda haka, a wasu lokuta ana amfani da shi azaman coagulant.
Tare da haɓaka busassun turmi mai gauraya.cellulose etherya zama mahimmancin turmi siminti admixture. Duk da haka, akwai nau'o'in iri da ƙayyadaddun bayanai na ether cellulose, kuma ingancin tsakanin batches har yanzu yana canzawa.
Lokacin aikawa: Afrilu-25-2024