Kedu ihe dị iche iche nke cellulose dị iche iche na plaster nke Paris nwere?
Enwere ike iji ma carboxymethyl cellulose na methyl cellulose dị ka ihe na-ejide mmiri maka plasta, mana mmetụta nke carboxymethyl cellulose dị ala karịa nke methyl cellulose, carboxymethyl cellulose nwekwara nnu sodium, yabụ ọ dabaraghị maka plasta nke paris. Ọ na-ebelata mmetụta ma na-ebelata ike nke plasta nke paris. Methyl cellulose bụ ngwakọta zuru oke maka ihe simenti gypsum nke na-ejikọta njigide mmiri, ịka nká, ike, na viscosifying, ewezuga na ụfọdụ ụdị nwere mmetụta na-ebelata mgbe dose ahụ buru ibu. Ọ dị elu karịa carboxymethyl cellulose. N'ihi nke a, ọtụtụ ihe gelling gypsum composite na-eji usoro nke njikọtacellulose carboxymethylnamethyl cellulose, nke na-egosipụtaghị naanị njirimara ha (dịka mmetụta nke carboxymethyl cellulose, mmetụta nke methyl cellulose), ma na-egosipụta uru ha (dịka mmetụta ha nke idobe mmiri na mmetụta nke ịdị arọ). N'ụzọ dị otu a, enwere ike imeziwanye arụmọrụ idobe mmiri nke ihe simenti gypsum na arụmọrụ zuru oke nke ihe simenti gypsum, ebe a na-edebe mmụba ọnụ ahịa na ebe kachasị ala.
Kedụ ka viscosity nke methyl cellulose ether dị mkpa maka gypsum mortar?
Viscosity bụ ihe dị mkpa na-egosi arụmọrụ methyl cellulose ether.
N'ikwu ya n'ozuzu, ka viscosity dị elu, otú ahụ ka mmetụta nchekwa mmiri nke gypsum mortar ka mma. Agbanyeghị, ka viscosity dị elu, otú ahụ ka methyl cellulose ether dị elu, na mbelata kwekọrọ na ya na ike ịgbaze ya ga-enwe mmetụta ọjọọ na ike na arụmọrụ owuwu nke mortar ahụ. Ka viscosity dị elu, otú ahụ ka mmetụta ọkpụrụkpụ na mortar ahụ na-apụta ìhè, mana ọ bụghị nha anya kpọmkwem. Ka viscosity dị elu, otú ahụ ka slimt mmiri ga-adịkwu. N'oge owuwu, a na-egosipụta ya dị ka ịrapara na scraper na njikọta dị elu na substrate. Mana ọ baghị uru ịbawanye ike nhazi nke mortar mmiri n'onwe ya. Na mgbakwunye, n'oge owuwu, arụmọrụ mgbochi sag nke mortar mmiri adịghị apụta ìhè. N'ụzọ megidere nke ahụ, ụfọdụ viscosity dị ọkara na obere mana methyl cellulose ethers agbanwere agbanwe nwere arụmọrụ dị mma n'imeziwanye ike nhazi nke mortar mmiri.
Olee otú ịdị mma nke cellulose ether dị na ngwa agha si dị mkpa?
Nchacha bụkwa ihe dị mkpa maka arụmọrụ nke methyl cellulose ether. MC eji eme ihe maka ngwa agha ntụ ntụ akọrọ chọrọ ka ọ bụrụ ntụ ntụ nwere obere mmiri, ịdị nro ahụ chọkwara ka pasent 20 ruo 60 nke nha ihe ndị ahụ ghara ịdị ihe karịrị mita 63. Nchacha ahụ na-emetụta ike ịgbaze nke methyl cellulose ether. Nchacha MC na-abụkarị granular, nke dị mfe ịgbaze ma gbazee na mmiri na-enweghị njikọta, mana ọnụego mgbaze na-adị nwayọ, yabụ ọ dịghị mma maka iji na ngwa agha ntụ ntụ akọrọ. Ụfọdụ ngwaahịa dị n'ụlọ na-agbaze, ọ dịghị mfe ịgbaze ma gbazee na mmiri, ọ dịkwa mfe ịgbaze. Na ngwa agha ntụ ntụ akọrọ, a na-agbasa MC n'etiti ihe ndị e ji simenti mee dị ka mkpokọta, ihe na-ejupụta nke ọma na simenti, naanị ntụ ntụ zuru oke nwere ike izere njikọta methyl cellulose ether mgbe a na-agwakọta ya na mmiri. Mgbe etinyere MC na mmiri iji gbazee agglomerates, ọ na-esiri ike ịgbaze ma gbazee. Nchacha MC na-agbaze na nke na-adịghị mma.MCọ bụghị naanị na ọ na-emefusị ihe, kamakwa ọ na-ebelata ike mpaghara nke ngwa agha ahụ. Mgbe etinyere ngwa agha ntụ ntụ akọrọ dị otú ahụ n'ebe buru ibu, ọsọ ngwa agha ahụ ga-ebelata nke ukwuu, mgbawa ga-apụtakwa n'ihi oge dị iche iche nke ngwa agha ahụ. Maka ngwa agha ahụ a fesara nke nwere owuwu igwe, ihe achọrọ maka ịdị mma dị elu n'ihi obere oge ngwakọta.
Ịdị mma nke MC nwekwara mmetụta ụfọdụ na njigide mmiri ya. N'ozuzu, maka methyl cellulose ethers nwere otu viscosity mana ịdị mma dị iche iche, n'okpuru otu ọnụọgụ mgbakwunye ahụ, ka ọ na-adị mma ka ọ na-eme ka mmetụta njigide mmiri ka mma.
Oge ozi: Eprel-25-2024