Phello e matla ea cellulose ether

Cellulose etherE fana ka seretse se metsi se nang le viscosity e ntle haholo, e ka eketsa haholo bokhoni ba tlamahano ea seretse se metsi le grassroots, ea ntlafatsa ts'ebetso ea anti-sag ea seretse, e sebelisoang haholo ho seretse sa plaster, sistimi ea ho kenya kantle le seretse se tlamang litene. The thickening phello ea selulose ether ka boela eketsa ho tšoana le-ba khahlanong le hasana bokhoni ba thepa e ncha samente thehiloeng, ho thibela stratification, karohano le ho tsoa mali a seretse le konkreite, e ka sebelisoa ka faeba konkreite, ka tlas'a metsi konkreite le ho intša compacting konkreite.

Cellulose ethereketsa viscosity ea thepa e thehiloeng samente ho tloha viscosity ea selulose ether tharollo. Hangata sebelisa "viscosity" metric ena ho hlahloba selulose ether tharollo viscosity, viscosity ea selulose ether ka kakaretso e bua ka mahloriso a itseng (2%) ea selulose ether tharollo, mocheso (20 ℃) ​​le ho kuta lebelo (kapa potoloha lebelo, tse kang 20 RPM) maemo a, ka litokisetso tsa metha e joalo ea metha ea visco rotating. Viscosity ke paramethara ea bohlokoa ea ho lekola ts'ebetso ea cellulose ether le cellulose ether, ho phahama ha viscosity ea tharollo, ho ntlafala ha viscosity ea thepa ea motheo ea samente, viscosity ea thepa ea motheo e ka khona, ho hanyetsa le ho hanyetsa matla a matla a ho qhalakanngoa, empa haeba viscosity e le khōlō haholo, e ka ama bokhoni ba samente ea ho haha ​​​​mohaho le ho tsamaea ha samente. Ka hona, viscosity ea cellulose ether e sebelisoang ka seretse se omileng se omileng hangata ke 15,000 ~ 60,000 Mpa. s-1, 'me viscosity ea cellulose ether e hlokahala hore e be tlase bakeng sa seretse sa ho ikemela le sekontiri se ikemetseng se nang le litlhoko tse phahameng tsa mokelikeli. Ho phaella moo, phello e matla ea cellulose ether e tla eketsa tlhokahalo ea metsi ea thepa e entsoeng ka samente, kahoo e eketsa tlhahiso ea seretse. The viscosity ea tharollo ea cellulose ether e itšetlehile ka boima ba molek'hule (kapa tekanyo ea polymerization) le mahloriso a cellulose ether, mocheso oa tharollo, sekhahla sa ho kuta, le mokhoa oa teko. Ha tekanyo ea polymerization ea cellulose ether e phahame, boima ba molek'hule bo boholo, bo phahamisa viscosity ea tharollo ea eona ea metsi; E phahameng ea tekanyo (kapa mahloriso) ea cellulose ether, e phahameng ea viscosity ea tharollo ea eona ea metsi, empa ha e sebelisoa e lokela ho ela hloko khetho ea litekanyetso tse loketseng, e le hore e se ke ea kopanya holimo haholo, e ama ts'ebetso ea seretse le konkreite; Joalo ka lino tse ngata, viscosity ea tharollo ea cellulose ether e tla fokotseha ka ho eketseha ha mocheso, 'me ha mocheso oa cellulose ether o phahame, phello ea mocheso e tla ba e kholoanyane; Tharollo ea cellulose ether hangata ke 'mele oa pseudoplastic o nang le thepa ea ho kuta moriri. Ha sekhahla sa ho kuta se phahame, se theola viscosity.

Ka hona, ho kopana ha seretse ho tla fokotsoa ke matla a ka ntle, e leng se loketseng ho hahoa ha seretse, ho etsa seretse ho ka ba le ts'ebetso e ntle le momahano. Leha ho le joalo, tharollo ea cellulose ether e tla bontša litšobotsi tsa mokelikeli oa Newtonian ha mahloriso a le tlaase haholo 'me viscosity e nyenyane haholo. Ha mahloriso a ntse a eketseha, tharollo butle-butle e hlahisa litšobotsi tsa mokelikeli oa pseudoplastic, 'me ha mahloriso a phahame, ho hlakile hore pseudoplastic e bonahala haholoanyane.