Viscosity bụ ihe dị mkpa na-egosi etu cellulose ether si arụ ọrụ.
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 molekul nke cellulose ether dị elu, na mbelata kwekọrọ na ya na ike ya ga-enwe mmetụta ọjọọ na ike na arụmọrụ owuwu nke slot ahụ. Ka viscosity dị elu, otú ahụ ka mmetụta thickness na slot ahụ na-apụta ìhè, mana ọ bụghị kpọmkwem nhata.
Ka viscosity dị elu, otú ahụ ka slam mmiri ga-adị ka viscous. N'oge a na-arụ ya, a na-egosipụta ya dị ka ịrapara na scraper na njikọta dị elu na substrate. Mana ọ baghị uru ịbawanye ike nhazi nke slam mmiri n'onwe ya. Na mgbakwunye, n'oge a na-arụ ya, arụmọrụ mgbochi sag nke slam mmiri anaghị apụta ìhè. N'ụzọ megidere nke ahụ, ụfọdụ viscosity dị n'etiti na nke dị ala mana methyl cellulose ethers agbanwere agbanwe nwere arụmọrụ dị mma n'imeziwanye ike nhazi nke slam mmiri.
Ihe ndị e ji arụ mgbidi ụlọ bụ ihe ndị nwere oghere dị n'ime ha, ha niile nwekwara ike ịmịkọrọ mmiri nke ọma. Agbanyeghị, a na-akwadebe ihe e ji arụ mgbidi gypsum site n'itinye mmiri na mgbidi ahụ, mmiri ahụ na-abanyekwa n'ime mgbidi ahụ ngwa ngwa, nke na-eme ka mmiri ghara ịdị mkpa maka ịmịnye gypsum ahụ, na-ebute nsogbu n'iwu ụlọ na mbelata ike njikọ, na-ebute mgbawa. Nsogbu dị mma dịka oghere na ịkpụcha. Imeziwanye njigide mmiri nke ihe e ji arụ ụlọ gypsum nwere ike ime ka mma owuwu na ike njikọ ya dịkwuo mma na mgbidi ahụ. Ya mere, ihe na-ejide mmiri aghọọla otu n'ime ihe ndị dị mkpa nke ihe e ji arụ ụlọ gypsum.
A na-eji gypsum plastering, gypsum bonded, gypsum caulking, gypsum putty na ihe ndị ọzọ e ji eme ntụ ntụ owuwu. Iji mee ka ọ dị mfe ịrụ ọrụ, a na-agbakwụnye ihe mgbochi gypsum n'oge mmepụta iji mee ka oge owuwu nke gypsum slurry dị ogologo. N'ihi na a na-agwakọta gypsum na Retarder, nke na-egbochi usoro mmiri nke gypsum hemihydrate. A ga-edebe ụdị gypsum slurry a na mgbidi ruo awa 1 ruo 2 tupu ọ daa. Ọtụtụ n'ime mgbidi nwere ihe ndị na-amịkọrọ mmiri, karịsịa mgbidi brik na simenti aerated. Mgbidi, osisi mkpuchi oghere na ihe ndị ọzọ dị mfe maka mgbidi, yabụ a ga-eme ọgwụgwọ mmiri na gypsum slurry iji zere mbufe akụkụ nke mmiri dị na slurry na mgbidi, na-ebute ụkọ mmiri na mmiri zuru oke mgbe gypsum slurry siri ike. Mee ka nkewa na mkpụcha nke nkwonkwo dị n'etiti gypsum na elu mgbidi dị mfe. Mgbakwunye nke ihe na-ejide mmiri bụ iji nọgide na-enwe mmiri dị na gypsum slurry, iji hụ na mmeghachi omume mmiri nke gypsum slurry na njikọ ahụ, iji hụ na ike njikọ ahụ siri ike. Ihe ndị a na-ejikarị eme ihe maka idobe mmiri bụ cellulose ethers, dịka: methyl cellulose (MC), hydroxypropyl methyl cellulose (HPMC), hydroxyethyl methyl cellulose (HEMC), wdg. Na mgbakwunye, enwere ike iji polyvinyl alcohol, sodium alginate, modified starch, diatomaceous earth, rare earth powder, wdg. iji melite arụmọrụ idobe mmiri.
Oge ozi: Febụwarị-28-2023