Matope, ma cellulose ether amayamba kukhala ndi gawo la kusungidwa kwamadzi, kukulitsa, kuchedwa mphamvu ya simenti hymary, ndikusintha magwiridwe antchito. Kutha kwa madzi kumapangitsa simenti hydration kwambiri, kumatha kukonza mafashoni onyowa matope, onjezerani mphamvu ya matope, ndikusintha nthawi. Kuonjezera ma cellulose ether to matope opopera matope amatha kukonza ma spory kapena kupopera ntchito ndi mphamvu yamatope. Cellulose imagwiritsidwa ntchito kwambiri ngati zowonjezera zofunikira m'matope osakanikirana. Kutenga gawo la zomanga monga chitsanzo, cellulose ether ali ndi chinthu chabwino kwambiri monga kukula, kusungidwa kwamadzi, ndikubweza. Chifukwa chake, kugulitsa kalasi ya cellulose ether amagwiritsidwa ntchito kwambiri kukonza matope osakanizika - kuphatikiza matope osakanizika ndi matope osakanizika, ndi zina, ndi zina zotero zopangidwa ndi zinthu zakuthupi.
Cellulose amatha kuchedwetsa ma hydration a simenti. Cellulose ether amavala matope ndi zinthu zosiyanasiyana zopindulitsa, komanso amachepetsa kutentha koyambirira kwa simenti ndikuchepetsa mphamvu ya simenti. Izi ndizosavuta kugwiritsa ntchito matope m'malo ozizira. Kubweza kumeneku kumachitika chifukwa cha Adsorption ya ma cellulose ether mamolekyulu pazinthu zopatsa mphamvu monga Chs ndi Ca (O) 2. Chifukwa chakuwonjezereka kwa mawonekedwe a core, cellulose emeulse yochepetsera kusuntha kwa ma ions mu yankho, poyerekeza ndi hydration njira. Kukwera kwambiri kwa cellulose ether mu mchere gel osakaniza, zomwe zimaperekedwa pakuchepetsa hydration. Cellulose ether osakhala kuchedwa, komanso kuchepetsedwa ndikulimba kwa matope a simenti. Kubwezeretsanso zotsatira za cellulose ethel ether kumatengera zochepa kokha pazomwe zimachitika m'gulu la gel, komanso pa mankhwala. Kukwera kwambiri kwa methylation ya hemc, yabwinobwino yobwezera kwa cellulose ether ether. Chiwerengero cha hydrophilic chogwiritsira ntchito madzi powonjezera madzi ndikubwezera. Komabe, mamasukidwe a cellulose ether ali ndi mphamvu pang'ono pa simenti hydration kinetics.
Ndi kuwonjezeka kwa zomwe zili hydroxypypyl methylcellulose ether, ndikukhazikitsa nthawi ya matope idakwera kwambiri. Pali mawonekedwe abwino osagwirizana pakati pa nthawi yoyamba ya matope ndi zomwe zili mu cellulose ether, komanso kulumikizana kwabwino pakati pa nthawi yomaliza komanso kuchuluka kwa cellulose ether. Titha kuwongolera nthawi ya matope mwa kusintha kuchuluka kwa maselo a cellulose.
Post Nthawi: Mar-09-2023