A wajen samar da kayan gini, musamman busasshen turmi.cellulose etheryana taka muhimmiyar rawa, musamman wajen samar da turmi na musamman (gyaran turmi), wani muhimmin bangare ne. Muhimmin rawar cellulose ether mai narkewa da ruwa a cikin turmi shine mafi kyawun ƙarfin riƙe ruwa. Tasirin riƙewar ruwa na ether cellulose ya dogara ne akan shayar da ruwa na tushe mai tushe, abun da ke cikin turmi, kauri na turmi, buƙatar ruwa na turmi, da lokacin saitin kayan saiti.
Yawancin masonry da plastering turmi ba sa riƙe ruwa da kyau, kuma ruwan da slurry zai rabu bayan ƴan mintuna kaɗan na tsaye. Riƙewar ruwa muhimmin aiki ne na methyl cellulose ether, kuma yana aiki ne da yawancin masana'antun bushe-bushe na gida, musamman waɗanda ke yankunan kudu da yanayin zafi, suna kula da su. Abubuwan da ke tasiri tasirin riƙewar ruwa na busassun busassun turmi sun haɗa da adadin ƙari, danko, fineness na barbashi, da zafin jiki na yanayin amfani.
Riƙewar ruwa nacellulose etherkanta ya fito ne daga solubility da dehydration na cellulose ether kanta. Kamar yadda muka sani, duk da cewa sarkar kwayar halitta ta cellulose ta ƙunshi adadi mai yawa na ƙungiyoyin OH masu ɗorewa, ba mai narkewa cikin ruwa ba, saboda tsarin cellulose yana da babban matakin crystallinity. Ƙarfin hydration na ƙungiyoyin hydroxyl kadai bai isa ya rufe ƙaƙƙarfan haɗin hydrogen da van der Waals ba tsakanin kwayoyin halitta. Don haka sai kawai ta kumbura amma ba ta narke cikin ruwa. Lokacin da aka shigar da wanda zai maye gurbinsa a cikin sarkar kwayoyin halitta, ba kawai abin da zai maye gurbinsa yana lalata sarkar hydrogen ba, har ma da haɗin gwiwar hydrogen ɗin yana lalata saboda ƙulla abin da zai maye gurbin tsakanin sarƙoƙi da ke kusa. Girman abin da zai maye gurbin, mafi girman nisa tsakanin kwayoyin halitta. Mafi girman nisa. Mafi girman tasirin lalata haɗin gwiwar hydrogen, ether cellulose ya zama mai narkewar ruwa bayan ɗigon cellulose ya faɗaɗa kuma maganin ya shiga, yana samar da mafita mai zurfi. Lokacin da zafin jiki ya tashi, hydration na polymer ya raunana, kuma ana fitar da ruwa tsakanin sarƙoƙi. Lokacin da sakamakon rashin ruwa ya isa, kwayoyin sun fara haɗuwa, suna samar da gel ɗin tsarin cibiyar sadarwa mai girma uku kuma suna nannade waje.
Gabaɗaya magana, mafi girman danko, mafi kyawun tasirin riƙewar ruwa. Duk da haka, mafi girman danko kuma mafi girman nauyin kwayoyin halitta, raguwa mai dacewa a cikin solubility zai yi mummunan tasiri akan ƙarfin da aikin ginin turmi. Mafi girma da danko, mafi bayyananne tasirin thickening akan turmi, amma ba daidai ba ne kai tsaye. Mafi girma da danko, da karin danko da rigar turmi zai zama, wato, a lokacin ginawa, an bayyana shi a matsayin mai mannewa ga scraper da babban mannewa ga substrate. Amma ba taimako ba ne don ƙara ƙarfin tsarin jika da kanta. A lokacin gini, aikin anti-sag ba a bayyane yake ba. Akasin haka, wasu matsakaici da ƙananan danko amma an gyara methylcellulose etherssuna da kyakkyawan aiki wajen inganta ƙarfin tsarin jika.
Lokacin aikawa: Afrilu-25-2024