Magulu a hydroxylcellulose etherMamolekyu ndi maatomu a oxygen panjira ya ether azikhala ndi mamolekyulu amadzi, kutembenuka madzi osalowa m'madzi omanga, motero amasewera bwino m'madzi osungidwa; Kuphatikizika pakati pa mamolekyulu ogwirizana ndi ma cellulose ethex ma unyolo amalola ma mamolekyulu amadzi kuti alowe mkati mwa ma cellulose ethel ether ether ether ether ether ether ether ether ether ether ether ether ether ether ether ether ether ether ether ether ether ether ether ether ether ether ether ether cellulose ether imathandizira kukhala ndi ziphuphu, kuphatikiza pa intaneti ndi kuponderezedwa kwa simenti yatsopano kapena njira yopanga mafilimu a cellulose ethel ethel etheluse.
Kusunga kwamadzi kwa maselo a cellulose kumachokera ku sulubility ndi madzinjeme a cellulose e okha. Kutha kwa hydrobyl kwa magulu a hydroxyl sikukwanira kulipira zomangira za haidrogen ndi van der Waals magulu ankhondo pakati pa mamolekyulu, kotero zimangotupa koma sizikutha komanso sizikusungunuka m'madzi. Pamene magimiti amayambitsidwa mu ma molecular tcheni, osati kokha magawo omwe akuwononga unyolo wa hydcgen, komanso magwiridwe antchito a hydchain amawonongedwa chifukwa cha maunyolo omwe ali ndi maunyolo oyandikana nawo. Zokulirapo m'malo oyang'anira, mtunda wokulirapo pakati pa mamolekyulu, komanso zotsatira zazikulu zowononga zomangira za hydrogen. Pambuyo pa celluul itupa, yankho limalowa, ndipo cellulose ether imakhala yosungunuka madzi, ndikupanga yankho lalitali, lomwe limapangitsa kuti pasungunuke madzi.
Zinthu Zomwe Zimakhudza Kusunga Madzi:
Mawonekedwe a EtherCose, kuchuluka kwa ma cellulose, magwiridwe antchito am'madzi, koma ma virus, omwe amapezeka moledyo wolemera kwambiri, ndipo solubility yake amachepetsa, zomwe zimasokoneza kwambiri matope. Nthawi zambiri, zomwe zimapangidwanso, zotsatira za mafayilo zimayesedwa ndi njira zosiyanasiyana zimasiyana kwambiri, kotero poyerekeza mafayilo, ziyenera kuchitika pakati pa njira zomwezi (kuphatikizapo kutentha, rotor, etc.).
Kubwereza kuchuluka: kuchuluka kwakukulu kwa cellulose ether ether ether ether owonjezera matope, abwinowo osunga madzi. Nthawi zambiri, etherse yochepa kwambiri imatha kusintha madzi osunga madzi a matope. Ndalama zikafika pamlingo winawake, zomwe zimachitika kuti madzi osunga madzi athe.
Ubwino wa tinthu: Omaliza, malo omwe amasungidwa amadzi. Tikakhala tinthu tating'onoting'ono ta ether timalumikizana ndi ma cellulose tikakumana ndi madzi, malowo amasungunuka ndipo amapanga gel kuti mukulungitse mamolekyulu amadzi kuti apewe. Nthawi zina, ngakhale kusunthika kwa nthawi yayitali sikungapangitse kupezeka kwa yunifolomu, ndikupanga yankho la maluwa kapena kuphatikizika, zomwe zimakhudza kwambiri chitetezo chamadzi cha ethel ether. Solubility ndi imodzi mwazinthu zomwe zimasankha ma etheluuse ether. Ubwino ndichizindikiro chofunikira cha methyl cellulose ether. Kuchita bwino kumakhudza kusungunuka kwa methyl cellulose ether. Coarsder Mc nthawi zambiri imakhala yosungunuka mosavuta m'madzi popanda kuphatikizika, koma kufooka kwa chilengedwe kumakhala kocheperako ndipo sioyenera kugwiritsa ntchito matope owuma.
Kutentha kwa kutentha kumakwera, kusungira kwamadzi kwa cellulose kumachepa, koma cellusese yosinthika imakhalanso ndi madzi abwino otentha; Kutentha kukakwera, hydration of ma polima ma polima, ndipo madzi pakati pa maunyolo amachotsedwa. Kuchepetsa madzi kumakhala kokwanira, mamolekyulu amayamba kuphatikizika kuti apange mawonekedwe a mitundu itatu ya gel.
Kusankhidwa kwa maselo: Cellulose etrars okhala ndi malire ali ndi chitetezo chamadzi.
Kukula ndi thixotropy
Kukula:
Zotsatira za kuthekera kogwiritsira ntchito ndi magwiridwe antchito: Cellulose etter imapereka matope abwino kwambiri matope owoneka bwino ndi matope osanjikiza matope ndikuwongolera matope a matope. Amagwiritsidwa ntchito kwambiri patavala matope, matayala amandangani matope ndi khoma lakunja la khoma 3.
Zotsatira pa zakukhosi: Kukula kwa cellulose edeluse kungakulitse luso la otsutsa komanso kusungunuka kwazinthu zatsopano, ndikusakanizira konkriti yamadzi, konkriti konkriti .
Gwero Lakukula Kwambiri: Mphamvu ya kukula kwa cellulose zopangidwa ndi simenti zimachokera ku mafayilo a elefase ether. M'mikhalidwe yomweyo, mafayilo apamwamba a ethel ether, kukhala ndi chidwi chazinthu zosinthidwa, koma ngati zikuwoneka bwino ). Matope okhathamira komanso konkriti yodzipangira nokha ndi madzi ambiri amafunikira mafayilo otsika kwambiri kwa cellulose ether ether. Kuphatikiza apo, mphamvu yakumwamba ya etheluse ether idzakulitsanso kuchuluka kwa zinthu za simenti ndikuwonjezera zomwe zidatulutsa matope.
Thixotropy:
Mawonekedwe apamwamba kwambiri cellulose a mu chixotropy ali ndi hixotropy, yomwe ilinso chinthu chachikulu cha cellulose ether ether. Madzi am'madzi a methyl cellulose nthawi zambiri amakhala ndi matenda a pseudopropric komanso osachira pansi pa kutentha kwake, koma kumawonetsa kuchepa kwatsopano kwatsopano. Pseudoplastity imachulukana ndi kuchuluka kwa kulemera kwa celluse etherser kapena ndende, ndipo sikugwirizana ndi mtundu wa mpweya wapansi komanso mulingo wambiri. Chifukwa chake, cellulose ed ars, kaya MC, hpmc, kapena hemc, nthawi zonse amawonetsa zofananira monga momwe zimakhalira ndi chidwi komanso kutentha. Kutentha kukakwera, gel yosakaniza imapangidwa, ndipo kutuluka kwa thixotropic kumachitika. Cellulose ed ndi ndende kwambiri komanso mafayilo otsika amawonetsa thixotropy ngakhale pansi pa kutentha kwa gel. Katunduyu ndi wopindulitsa kwambiri chifukwa cha kusinthaku ndikusambira matope pomanga.
Mpweya
Mfundo ndi Zothandiza Kugwira Ntchito: Ma cellulose ether ali ndi mphamvu yophunzitsira ya mpweya pazinthu zatsopano za simenti. Cellulose ether ili ndi magulu onse a hydrophilic (magulu a hydroxyl, madera a Ether) ndi magulu a hydrophobic (magulu a methyl, mphete za shuga). Ndiosasintha kwambiri ndi ntchito yapamwamba, motero kukhala ndi mpweya wabwino. Mphamvu ya mpweya imabala mankhwala osokoneza bongo, omwe amatha kusintha magwiridwe antchito osakanikirana mwatsopano, monga kuwonjezera pulasitiki ndi kusalala kwa matope, komwe kumakhala kothandiza pakufalikira kwa matope; Ikuwonjezeranso kutulutsa kwa matope ndikuchepetsa mtengo wa matope.
Zotsatira pa makina opanga: Mphamvu yakuimyo imawonjezera chida chouma ndikuchepetsa mphamvu zake ngati mphamvu ndi zotanulira.
Zotsatira zamadzimadzi: monga kuchuluka kwa ma cell Mphamvu ya maselo a cellulose pa madzi amtundu wa simenti ndi kuphatikiza kwa ma pulasitiki ndi kukula. Nthawi zambiri, kuchuluka kwa celluuse ndi kotsika kwambiri, kumawonekera kwambiri ngati kupopera kapena madzi kuchepetsa; Mlingowo utakwera, kusintha kwakukula kwa cellulose ethel ethel ethel ethel kumachulukitsa mwachangu, ndipo mphamvu yake yovala mpweya imakonda kukhuta, kotero zimawonekera ngati kukula kwamphamvu kapena kukulira madzi.
Post Nthawi: Disembala 23-2024