Mmetụta siri ike nke cellulose ether

Cellulose etherna-enye ụrọ mmiri mmiri nke nwere ezigbo viscosity, nwere ike ime ka ikike njikọ nke ụrọ mmiri na ala dịkwuo elu, melite arụmọrụ mgbochi sag nke ụrọ, nke a na-ejikarị eme ihe na plaster mort, sistemụ mkpuchi mpụga na brik motrị njikọ. Mmetụta siri ike nke cellulose ether nwekwara ike ime ka ikike ịdị n'otu na mgbochi mgbasa nke ihe ndị e ji simenti ọhụrụ mee dịkwuo mma, iji gbochie nhazi, nkewa na ọbara ọgbụgba nke ụrọ na simenti, enwere ike iji ya na fiber concrete, simenti dị n'okpuru mmiri na simenti na-akpakọ onwe ya.

Cellulose etherna-eme ka ihe ndị e ji simenti mee ka ọ dịkwuo mma site na viscosity nke ihe ngwọta cellulose ether. A na-ejikarị "viscosity" eme ihe a iji nyochaa viscosity nke ihe ngwọta cellulose ether, viscosity nke cellulose ether na-ezo aka na njupụta ụfọdụ (2%) nke ihe ngwọta cellulose ether, okpomọkụ (20 ℃) ​​na ọnụego shear (ma ọ bụ ọsọ ntụgharị, dị ka 20 RPM), yana ndokwa nke ngwa nha, dị ka uru viscosity atụnyere viscometer. Viscosity bụ paramita dị mkpa maka inyocha arụmọrụ nke cellulose ether na cellulose ether, ka viscosity nke ihe ngwọta ahụ dị elu, ka viscosity nke ihe ntọala ciment ka mma, viscosity nke ihe ntọala nwere ike, nguzogide sag na iguzogide ike mgbasa siri ike, mana ọ bụrụ na viscosity buru ibu, nwere ike imetụta ngagharị ihe ntọala simenti na ikike ịnyagharị (dịka owuwu nke plaster mortar gluu plaster). Ya mere, viscosity nke cellulose ether eji na ngwa agha akọrọ na-abụkarị 15,000 ~ 60,000 Mpa. s-1, a chọrọ ka viscosity nke cellulose ether dị ala maka ngwa agha na-agbanwe onwe ya na compactconcrete nwere oke mmiri mmiri. Na mgbakwunye, mmetụta siri ike nke cellulose ether ga-eme ka mmiri chọrọ ihe ndị e ji simenti mee ka mmiri dịkwuo elu, si otú a na-eme ka mmepụta nke mortar dịkwuo elu. viscosity nke ngwọta cellulose ether dabere na ibu molekul (ma ọ bụ ogo nke polymerization) na njupụta nke cellulose ether, okpomọkụ ngwọta, ọnụego shear, na usoro nnwale. Ka ogo polymerization nke cellulose ether dị elu, ka ibu molekul na-abawanye, ka viscosity nke ngwọta mmiri ya dị elu; Ka dose (ma ọ bụ njupụta) nke cellulose ether dị elu, ka viscosity nke ngwọta mmiri ya dị elu, mana n'iji ya kwesịrị ịṅa ntị na nhọrọ nke dose kwesịrị ekwesị, ka ọ ghara ịgwakọta oke elu, na-emetụta arụmọrụ nke mortar na simenti; Dịka ọtụtụ mmiri mmiri, viscosity nke ngwọta cellulose ether ga-ebelata ka okpomọkụ na-abawanye, na ka njupụta nke cellulose ether dị elu, ka mmetụta nke okpomọkụ ka ukwuu; Ngwọta Cellulose ether na-abụkarị ahụ pseudoplastic nwere ihe onwunwe nke shear thinning. Ka oke nha nha ahụ dị elu, otú ahụ ka viscosity ahụ na-ebelata.

Ya mere, ike mpụga ga-ebelata njikọ nke ngwa agha, nke na-enyere aka n'ịkpụcha ngwa agha, na-eme ka ngwa agha nwee ike ịrụ ọrụ nke ọma na njikọta. Agbanyeghị, ngwọta cellulose ether ga-egosi njirimara mmiri Newtonian mgbe ntinye ahụ dị obere nke ukwuu na viscosity dị obere. Mgbe ntinye ahụ na-abawanye, ngwọta ahụ na-egosipụta njirimara mmiri pseudoplastic nwayọ nwayọ, na ka ntinye ahụ na-abawanye, otú ahụ ka pseudoplastic na-apụta ìhè.