Ana amfani da ethers na cellulose a matsayin ƙari a cikin kayan gini saboda ikon su na gyara rheological da kayan aikin injiniya na kayan.Musamman, ana haɗa su sau da yawa a cikin turmi na gypsum don inganta ruwa, aiki da mannewa.Duk da haka, takamaiman tasirin cellulose ether danko akan aikin gypsum turmi bai riga ya bayyana ba.Wannan takarda ta sake nazarin wallafe-wallafen da ake da su a kan wannan batu kuma ya tattauna yiwuwar tasirin cellulose ether danko akan kaddarorin gypsum turmi.
Cellulose ethers sune polymers masu narkewa da ruwa waɗanda aka samo daga cellulose, polymer na halitta wanda aka samo a cikin ganuwar tantanin halitta.Yawanci ana amfani da su azaman masu kauri, masu ɗaure da stabilizer a aikace-aikacen masana'antu iri-iri da suka haɗa da abinci, kayan kwalliya, magunguna da kayan gini.A cikin gini, galibi ana haɗa su cikin turmi don haɓaka iya aiki, mannewa da karko.
Gypsum ma'adinai ne na halitta wanda ya ƙunshi calcium sulfate dihydrate.An yi amfani da shi sosai wajen gini don kaddarorin sa masu jure wuta da sauti da kuma kaddarorin da ke da zafi.Turmi gypsum yawanci ana amfani dashi azaman madaidaicin bangon stucco da rufi, da kuma gama aikin ginin bangon busasshen.
Lokacin da aka ƙara ether cellulose zuwa turmi gypsum, zai iya canza halayen rheological na cakuda.Rheology shine nazarin nakasawa da kwararar kayan da ke ƙarƙashin damuwa.Halin kwararar turmi na gypsum ana iya siffanta shi ta danko, wanda shine ma'auni na jurewar kwarara.Dankowar turmi yana tasiri da abubuwa da yawa, ciki har da nau'in da maida hankali na ether cellulose, girman barbashi da rarraba gypsum, da rabon ruwa zuwa siminti.
Mafi girma danko ethers cellulose ayan samun babban tasiri a kan kwarara hali na gypsum turmi fiye da ƙananan danko ethers.Alal misali, nazarin ya nuna cewa ƙara high-viscosity hydroxypropylmethylcellulose (HPMC) zuwa gypsum turmi iya kara danko na cakuda da kuma inganta ta aiki, yayin da low danko HPMC yana da kadan tasiri a kan kwarara hali na turmi.Wannan yana nuna cewa aikin turmi na gypsum ya dogara da takamaiman nau'i da danko na ether cellulose da aka yi amfani da su.
Ɗaya daga cikin manyan fa'idodin haɗawa da ether cellulose a cikin turmi gypsum shine cewa yana inganta yanayin aiki na cakuda.Ƙaddamarwa yana nufin sauƙi wanda za'a iya haɗawa da abu, sanyawa da kuma haɗa shi.Za'a iya amfani da turmi na gypsum mai girma aiki zuwa saman sama da sauƙi, yana haifar da sassauci, ƙarar gamawa.Cellulose ethers na iya inganta aikin haɗin gwiwar ta hanyar rage yawan rarrabuwa da zub da jini, wanda ke faruwa a lokacin da ƙananan ƙwayoyin da ke cikin turmi suka tashi daga haɗuwa a lokacin ginawa.
Bugu da ƙari, yana rinjayar iya aiki, danko na ether cellulose zai kuma shafi aikin m na gypsum turmi.Adhesion shine ikon abu don haɗawa zuwa wani saman.Kasancewar ether cellulose a cikin turmi gypsum zai iya inganta mannewa zuwa saman ta hanyar ƙara wurin hulɗa da kuma rage yawan iska mai kama tsakanin saman.High-viscosity cellulose ethers sun fi tasiri fiye da ƙananan ethers a inganta mannewa saboda suna haifar da haɗin gwiwa mai ƙarfi tsakanin saman.
Wani muhimmin abu na turmi gypsum shine lokacin saita shi, lokacin da ake ɗaukar cakuda don taurare da haɓaka ƙarfi.Za'a iya canza lokacin saitin turmi na gypsum ta ƙara cellulose ether, wanda zai iya rinjayar tsarin hydration na gypsum barbashi.Hydration shine halayen sinadaran da ke faruwa lokacin da aka ƙara ruwa zuwa gypsum, wanda ke haifar da samuwar calcium sulfate dihydrate crystals.
Danko na ether cellulose yana da tasiri mai mahimmanci akan aikin gypsum turmi.Higher danko ethers cellulose iya inganta processability, m Properties da saita lokaci na cakuda, yayin da ƙananan danko ethers iya samun kadan tasiri a kan wadannan kaddarorin.Ƙayyadaddun tasirin cellulose ether danko ya dogara da dalilai masu yawa, ciki har da nau'i da ƙaddamarwa na ether, girman ƙwayar ƙwayar cuta da rarraba gypsum, da rabon ruwa zuwa ciminti.Ana buƙatar ƙarin bincike don cikakken fahimtar alakar da ke tsakanin cellulose ether danko da kaddarorin turmi na gypsum, amma wallafe-wallafen da ke akwai sun nuna cewa wannan muhimmin abu ne da za a yi la'akari da shi lokacin tsara kayan gini.
Lokacin aikawa: Agusta-15-2023