Amfani da Cellulose Ether

A cikin abun da ke ciki na busasshen turmi na foda,cellulose etherwani muhimmin ƙari ne mai ƙarancin adadin ƙari, amma yana iya inganta haɗawa da aikin ginin turmi sosai. A taƙaice dai, kusan dukkan halayen haɗa turmi da ake iya gani da ido tsirara ana samar da su ne ta hanyar cellulose ether. Yana da sinadarin cellulose da aka samo ta hanyar amfani da cellulose daga itace da auduga, yana amsawa da soda mai kauri, sannan kuma yana fitar da sinadarin etherifying da wani abu mai kauri.

Nau'ikan cellulose ethers

A. Hydroxypropyl methyl cellulose (HPMC), wanda aka fi yin sa da auduga mai tsafta a matsayin kayan da aka sarrafa, ana yin sa ne musamman a ƙarƙashin yanayin alkaline.
B. Hydroxyethyl methylcellulose (HEMC), wani sinadari mai suna cellulose ether wanda ba ionic ba ne, foda ne mai launin fari, ba shi da ƙamshi kuma ba shi da ɗanɗano.
C. Hadin Hydroxyethyl cellulose (HEC), wani abu mai kama da surfactant mara ionic, fari a kamanninsa, mara ƙamshi, mara ɗanɗano kuma mai sauƙin gudana.

Abubuwan da ke sama sune ƙwayoyin cellulose marasa ionic, da kuma ƙwayoyin cellulose ionic (kamar carboxymethyl cellulose CMC).

A lokacin amfani da busasshen turmi na foda, saboda ionic cellulose (CMC) ba shi da ƙarfi a gaban ions na calcium, ba kasafai ake amfani da shi a tsarin gelling mara tsari tare da siminti da lemun tsami mai laushi a matsayin kayan siminti ba. A wasu wurare a China, Wasu putties na ciki na bango da aka sarrafa da sitaci mai gyara a matsayin babban kayan siminti kuma foda Shuangfei a matsayin cika suna amfani da CMC a matsayin mai kauri. Duk da haka, saboda wannan samfurin yana da saurin kamuwa da mildew kuma ba ya jure ruwa, kasuwa tana kawar da shi a hankali. A halin yanzu, cellulose ether da ake amfani da shi a China shine HPMC.

Ana amfani da Cellulose ether galibi azaman wakilin riƙe ruwa da kuma mai kauri a cikin kayan da aka yi da siminti

Aikin riƙe ruwa na iya hana substrate shan ruwa da yawa da kuma hana fitar ruwa, don tabbatar da cewa simintin yana da isasshen ruwa lokacin da aka shayar da shi. Misali, aikin shafa siminti. Idan aka shafa simintin yau da kullun a saman tushe, busasshen kuma mai ramuka zai sha ruwa mai yawa daga slurry ɗin, kuma Layer ɗin slurry na siminti kusa da Layer ɗin tushe zai rasa ruwan da ake buƙata don sha ruwa cikin sauƙi. , don haka ba wai kawai ba zai iya samar da gel ɗin siminti mai ƙarfin haɗuwa a saman substrate ɗin ba, har ma yana iya jujjuyawa da zubewa, don haka Layer ɗin slurry na simintin saman yana da sauƙin faɗuwa. Lokacin da grout ɗin da aka shafa ya yi siriri, yana da sauƙin samar da tsagewa a cikin dukkan grout ɗin. Saboda haka, a aikin shafa simintin saman da ya gabata, yawanci ana amfani da ruwa don jika substrate da farko, amma wannan aikin ba wai kawai yana ɗaukar aiki da lokaci ba ne, har ma yana da wahalar sarrafawa.

Gabaɗaya dai, riƙe ruwa na siminti yana ƙaruwa tare da ƙaruwar sinadarin cellulose ether. Yayin da yawan danko na sinadarin cellulose ether da aka ƙara, haka nan riƙon ruwa zai fi kyau.

Baya ga riƙe ruwa da kauri, cellulose ether yana kuma shafar wasu halaye na turmi na siminti, kamar rage gudu, shigar da iska cikin iska, da kuma ƙara ƙarfin haɗin gwiwa. Cellulose ether yana rage saurin saitawa da taurarewar siminti, don haka yana tsawaita lokacin aiki. Saboda haka, wani lokacin ana amfani da shi azaman coagulant.

Tare da haɓaka turmi mai gauraye da busasshe,cellulose etherya zama muhimmin haɗin turmi na siminti. Duk da haka, akwai nau'ikan da ƙayyadaddun bayanai na cellulose ether, kuma ingancin tsakanin rukunoni har yanzu yana canzawa.