Mu kapangidwe ka matope a ufa,cellulose etherChowonjezera chofunikira ndi kuchuluka kwa zowonjezera zowonjezera, koma kumatha kusintha mapangidwe omanga matope. Kuyika pang'ono, pafupifupi kuthira katundu wonse kwa matope omwe amatha kuwoneka ndi diso lamaliseche kumaperekedwa ndi etherse. Ndi cellulose yopezeka pogwiritsa ntchito cellulose pogwiritsa ntchito nkhuni ndi thonje, onjezerani ndi sousda yosungunuka, kenako ndikumverera ndi wothandizila.
Mitundu ya cellulose et
A. Hydroxypropyl methyl cellulose (hpmc), zomwe zimapangidwa makamaka ndi thonje loyera kwambiri ngati zopangidwa, zimayesedwa mwapadera pansi pa milkingine.
B. Hydroxyethyl methylcelulose (hemc), ma celluose osakhala a celluse, ndi ufa woyera, wopanda fungo, wopanda fungo komanso wopanda pake.
C. Hydroxyethyl cellulose (hec), mawonekedwe osakhala ochepera, oyera, opanda fungo, osavuta komanso osavuta.
Zomwe zili pamwambazi ndizosagwirizana ndi cellulose yokhazikika, ndi ionic cellulose et (monga carboxymethyl celc).
Mukamagwiritsa ntchito matope a ufa, chifukwa ionic cellulose (cmc) ndi yosakhazikika pamaso pa calcium ions, sizigwiritsidwa ntchito kawirikawiri m'magulu a simenti ndi sime ngati zida. M'malo ena ku China, malo ena amkati mwathu okonzedwa ndi wosinthika wosinthidwa ngati chinthu chachikulu chokhazikika ndi shuangfei ufa wa shuaangfei monga filler gwiritsani ntchito cmc ngati wokulirapo. Komabe, chifukwa izi zimakonda kupsa ndipo sizingathe kugonjetsedwa ndi madzi, pang'onopang'ono imachotsedwa pamsika. Pakadali pano, ma cellulose omwe amagwiritsidwa ntchito kwambiri ku China ndi HPMC.
Cellulose ether imagwiritsidwa ntchito makamaka ngati osunga madzi ndi Thicker mu zinthu za simenti
Ntchito yake yosungidwa yamadzi imatha kuletsa madzi ambiri ndikulepheretsa madzi okwanira, kuti awonetsetse kuti simenti ili ndi madzi okwanira pomwe amathira madzi. Tengani ntchito yojambulidwa monga chitsanzo. Pamene simenti wamba imagwiritsidwa ntchito pamtunda, gawo louma komanso lotentha lidzayamwa mwachangu madzi osanjikiza, ndipo simenti slurry wosanjikiza utataya madzi ofunikira. , kotero silingathe kupanga simenti gel ndi mphamvu yolimba pamwamba pa gawo la gawo lapansi, koma limakondanso kuwononga ndi kutsika kwamadzi, kotero kuti simenti yotsetsereka yocheperako ndiyosavuta kugwa. Wofuula akamagwiritsa ntchito ndi yoonda, ndikosavuta kupanga ming'alu yopuma yonse. Chifukwa chake, m'mbuyomu kugwirira ntchito, madzi nthawi zambiri amagwiritsidwa ntchito kunyowetsa kaye gawo lalikulu, koma opaleshoni iyi si ntchito yongogwira ntchito yogwira ntchito komanso nthawi yambiri, komanso mtunduwo ndiwovuta kuwongolera.
Nthawi zambiri, kusungidwa kwamadzi kwa simenti kumawonjezeka ndi kuwonjezeka kwa zomwe zili ndi cellulose ether ether. Makutu owonjezereka a etherse yowonjezera, malo abwino osungitsa madzi.
Kuphatikiza pa kusungidwa kwamadzi ndikukula, cellulose ether imakhudzanso zinthu zina za matope a simenti, monga kubwezeretsanso, mpweya wopatsa, ndikuwonjezera mphamvu. Cellulose ether amachepetsa makilomita ndikuwumitsa simenti, ndikuyang'ana nthawi yogwira ntchito. Chifukwa chake, nthawi zina imagwiritsidwa ntchito ngati coagunt.
Ndi chitukuko cha matope osakanikirana,cellulose etheryakhala njira yofunika ya simenti ya simenti. Komabe, pali mitundu yambiri yosiyanasiyana ya ether ya cellulose, ndipo mtundu pakati pa mabatani amafulumirebe.
Post Nthawi: Apr-25-2024