M'matope osakanizika, osakanizika, kutalika kwa cellulose pang'ono kumatha kusintha matope onyowa, amatha kuwona kuti ma ethelu owonjezera omwe amakhudza matope omanga.
Kusankhidwa kwa mitundu yosiyanasiyana, ma viscosies osiyanasiyana, kukula kwa tinthu osiyanasiyana, madigiri osiyanasiyana okutira komanso kuwonjezera kwa cellulose et alinso ndi zovuta zina pa matope a ufa wa ufa wa ufa. Pakadali pano, matope ambiri ndi matope okhala ndi magwiridwe antchito osawoneka bwino, ndipo madziwo amalekanitsa atangoimirira pang'ono, motero ndikofunikira kwambiri kuwonjezera matope a ether.
1. Kusunga kwa cellulo - kusungidwa kwamadzi
Kusungidwa kwamadzi ndikofunikira pakugwiritsa ntchito methyl cellulose ether ether, ndipo ndi ntchito yomwe ambiri amawuma opanga matope, makamaka iwo akumwera kum'mwera ndi kutentha kwakukulu, samalani. Popanga zida zomangira, makamaka matope a ufa, cellulose ether imagwira ntchito yosasinthika, makamaka popanga matope apadera (matope osinthika), ndi chinthu chofunikira komanso chofunikira.
Maonekedwe, Mlingo, kutentha kwa ma cellulose ether kukhala ndi mphamvu kwambiri pamayendedwe ake osungira madzi. Pansi pazomwezo, mafashoni ambiri a ethel ether, kusungitsa kwamadzi kuli bwinobwino; Mlingo wapamwamba, kusungitsa kwamadzi. Nthawi zambiri, etherse yochepa kwambiri imatha kusintha madzi osungira matope. Mlingo ukafika pamlingo wina pomwe madzi osungidwa amadzi amawonjezeka, zomwe zimachitika kwa madzi osunga madzi amachepetsa; Pamene kutentha kwa kutentha kumakwera, kusungira kwamadzi kwa ethel nthawi zambiri kumachepetsa, koma cellusese yosinthika imakhalanso ndi madzi osungidwa bwino otentha; Mitundu yokhala ndi madigiri otsika a vegage ethen ether ali ndi magwiridwe antchito abwino.
Gulu la hydroxyl pa cellulose ethel Molekyu ndi Oxygen Colect Commet Commuenge Commet Comment Country Commet Conser the water molecule and the cellulose ether molecular chain Interdiffusion allows water molecules to enter the interior of the cellulose ether macromolecular chain and is subject to strong binding forces, thereby forming free water, entangled water, and improving the water retention of cement slurry; cellulose ether imathandizirani simenti yatsopano yazachilengedwe, kapangidwe kake ndi kupanikizika kwa osmotic kapena kagwiritsidwe ka kama filimu ya cellulose ether ether imalepheretsa kusokonekera kwa madzi.
2. Cellose etter - kukula ndi thixotropy
Cellulose ether amataya matope onyowa ndi mawonekedwe abwino kwambiri, omwe amatha kuwonjezera luso pakati pa matope ndi malo osanjikiza a matope. Amagwiritsidwa ntchito kwambiri mu matope, njerwa zimagwirizanitsa matope ndi khoma lakunja khoma. Mphamvu ya etherse ether ether amathanso kuwononga mphamvu zotsutsa, kupewa kufooka kwakunja, tsankho komanso kutuluka konkriti.
Mphamvu ya kukula kwa cellulose pazinthu za simenti zimachokera ku mamasukidwe a eleeuse ether. M'mikhalidwe yomweyi, mafayilo apamwamba a ether ether, ma virus abwino kwambiri osinthika, koma ngati ma viruwo ndiwokwera kwambiri, koma ). Matope okhathamira komanso konkriti wodziletsa, zomwe zimafuna kuti madzi am'mwamba, amafunikira mafayilo otsika a cellulose. Kuphatikiza apo, kusintha kwa kukula kwa cellulose ether kumakulitsa kuchuluka kwa zinthu za simenti ndikuwonjezera zokolola za matope.
Mawonekedwe apamwamba kwambiri cellulose a mu chixotropy ali ndi hixotropy, yomwe ilinso chinthu chachikulu cha cellulose ether ether. Mankhwala am'madzi a methyl cellulose nthawi zambiri amakhala ndi madzi amtunda pansi pa kutentha kwake, koma onetsetsani katundu wa Newtonian pa mitengo yotsika. Pseudoplation imachulukana ndi kulemera kwa maselo kapena ndende ya ethel ether, mosasamala mtundu wa gawo la mpweya wolowa m'malo mwake. Chifukwa chake, cellulose edi ya kalasi ya ma visce yomwe ija, ziribe kanthu mc, hpmc, hemc, nthawi zonse imawonetsa zomwezo ngati kuchuluka kwa zomwe zimachitika nthawi zonse. Ma gels amapangidwa kuti kutentha kukuwukitsidwa, komanso kutulutsa kambiriko kwambiri.
Kukhazikika kwambiri komanso kutsika kwa ma vinclose yotsika cellulose kumawonetsa thixotropy ngakhale pansi pa kutentha kwa gel. Katunduyu ndi phindu lalikulu pakusintha kwa malo opangira matope omanga. Iyenera kufotokozedwa pano kuti kukwera kwa ethel ethel ethel ether, mamasukidwe abwinowo, koma okwera kwambiri olemera kwambiri, ndipo amachepetsa mosiyanasiyana, omwe ali ndi mavuto ake pazachilengedwe komanso zomanga.
3.
Cellulose ether ili ndi zowoneka bwino za mpweya pazinthu zatsopano za simenti. Cellulose ether ili ndi magulu onse a hydrophilic (magulu a hydroxyl) ndi magulu a Hydrophobic) (Magulu a methyl, mphete za glucose), ndipo ndizothandiza kwambiri. Mphamvu ya mpweya wa ethel ethel ether imatulutsa "mpira", zomwe zingakuthandizireni magwiridwe antchito osakanikirana, monga kuwonjezera pulasitiki ndi mawonekedwe a matope ndi kuwonongedwa kwa matope ; Ikuwonjezeranso kutulutsa kwa matope, kuchepetsa mtengo wopanga matope; Koma imawonjezera chidwi chouma ndi kuchepetsa mphamvu zake monga mphamvu ndi zotanulira.
Monga wowonjezera, cellulose ether ilinso yonyowa kapena kuthira mafuta onyowa pazinthu za simenti, zomwe zimawonjezera madzi opangidwa ndi simenti pamodzi ndi mphamvu zake zochokera pansi, koma zotsatira zake zakumwamba zimachepetsa madzi. Mphamvu yamadzimadzi ndi kuphatikiza kwa pulasitiki komanso kukula. Nthawi zambiri, pamene cellulose ether ether ndi yotsika kwambiri, ntchito yayikulu ndiyoponyedwa ndi mapulasitiki kapena madzi; Zomwe zili ndizokwera, kukula kwambiri kwa cellulose ether ether kumachulukitsa mwachangu, ndipo zotsatira zake zokopa mpweya zimawoneka zokhuta. Chifukwa chake zimawoneka ngati kukula kapena kuchuluka kwa madzi.
4. Ma cellulose ether - kubwezeretsanso zotsatira
Cellulose ether ikulanda nthawi yanthawi ya simenti kapena matope, ndikuchepetsa kusintha kwa matope, koma kuwonongeka kwa matope Komanso tsitsani kuchedwetsa kupita patsogolo kwa zomangamanga.
Post Nthawi: Meyi-04-2023