1. Ngwakọta ngwakọta mmiri mmiri: ngwakọta ngwakọta bụ ụdị simenti, ngwakọta dị mma, ngwakọta na mmiri, yana dịka ihe onwunwe nke ihe dị iche iche si dị, dịka oke ụfọdụ si dị, mgbe a tụchara ya n'ebe a na-agwakọta ya, gwakọta ya, buru ya gaa ebe a na-eji gwongworo ahụ, wee banye n'ime ebe pụrụ iche Chekwaa akpa ahụ ma jiri ngwakọta mmiri emechara maka oge akọwapụtara.
2. A na-eji hydroxypropyl methyl cellulose eme ihe dị ka ihe na-ejide mmiri maka simenti na ihe na-egbochi mmiri maka ịgbapụ mmiri. N'ihe gbasara gypsum dị ka ihe na-ejikọ iji melite ojiji na ịgbatị oge ọrụ, njigide mmiri nke HPMC na-egbochi slurry ịgbawa ngwa ngwa mgbe ọ kpọrọ nkụ, ma na-eme ka ike dịkwuo mma mgbe ọ siri ike. Nchekwa mmiri bụ ihe dị mkpa nke hydroxypropyl methyl cellulose HPMC, ọ bụkwa ihe na-echegbu ọtụtụ ndị na-emepụta mortar mmiri mmiri n'ụlọ. Ihe ndị na-emetụta mmetụta njigide mmiri nke mortar mmiri mmiri gụnyere ọnụọgụ HPMC agbakwunyere, viscosity nke HPMC, ịdị mma nke ihe ndị ahụ na okpomọkụ nke gburugburu ebe eji.
3. Ọrụ ndị bụ isi nke hydroxypropyl methyl celluloseHPMCN'ime ngwa agha a gwakọtara mmiri, ihe atọ dị mkpa bụ isi ihe dị na ya, otu bụ ikike ijide mmiri nke ọma, nke ọzọ bụ mmetụta dị na nguzosi ike na thixotropy nke ngwa agha a gwakọtara mmiri, nke atọ bụ mmekọrịta ya na simenti. Njide mmiri nke cellulose ether dabere na ọnụego nnabata mmiri nke ntọala ahụ, ihe mejupụtara ngwa agha ahụ, ọkpụrụkpụ nke oyi akwa ngwa agha ahụ, mkpa mmiri nke ngwa agha ahụ, na oge ntọala. Ka nghọta nke hydroxypropyl methyl cellulose dị elu, otú ahụ ka njide mmiri ka mma.
4. Ihe ndị na-emetụta njide mmiri nke ihe e ji mmiri gwakọta mmiri gụnyere viscosity cellulose ether, ọnụọgụ mgbakwunye, nha ihe na okpomọkụ. Ka viscosity nke cellulose ether na-abawanye, otú ahụ ka njide mmiri ka mma. Viscosity bụ paramita dị mkpa nke arụmọrụ HPMC. Maka otu ngwaahịa ahụ, nsonaazụ nke iji ụzọ dị iche iche tụọ viscosity dị iche iche nke ukwuu, ụfọdụ nwekwara oghere abụọ. Ya mere, a ga-eme ntụnyere nke viscosity n'otu usoro nnwale ahụ, gụnyere okpomọkụ, spindle, wdg.
5. N'ikwu ya n'ozuzu, ka viscosity dị elu, otú ahụ ka nchekwa mmiri si ka mma. Agbanyeghị, ka viscosity dị elu, otú ahụ ka ibu molekul nke HPMC dị elu na obere ike ịgbaze nke HPMC dị ala, nke nwere mmetụta ọjọọ na ike na arụmọrụ owuwu nke slaịtọ. Ka viscosity dị elu, otú ahụ ka mmetụta slaịtọ nke slaịtọ ahụ si apụta ìhè, mana ọ bụghị ihe jikọrọ ya kpọmkwem. Ka viscosity dị elu, otú ahụ ka slaịtọ mmiri si apụta, otú ahụ ka arụmọrụ owuwu ka mma, arụmọrụ nke slaịtọ viscous na nrapado dị elu na substrate. Agbanyeghị, ike nhazi nke slaịtọ mmiri ahụ n'onwe ya anaghị enyere aka. Ihe owuwu abụọ ahụ enweghị arụmọrụ doro anya na-egbochi sag. N'ụzọ dị iche, ụfọdụ viscosity dị ala na nke dị ala mana hydroxypropyl methyl cellulose agbanwere nwere arụmọrụ dị mma n'imeziwanye ike nhazi nke slaịtọ mmiri.
6. Ka ọnụọgụgụ cellulose ether a na-etinye na ngwa mmiri HPMC na-abawanye, otú ahụ ka njide mmiri ka mma, na ịdị elu nke viscosity, otú ahụ ka njide mmiri ka mma. Ịdị mma bụkwa ihe dị mkpa maka arụmọrụ nke hydroxypropyl methyl cellulose.
7. Ịdị mma nke hydroxypropyl methyl cellulose nwekwara mmetụta ụfọdụ na njigide mmiri ya. N'ozuzu, maka hydroxypropyl methyl cellulose nwere otu viscosity na ịdị mma dị iche iche, ịdị mma ahụ pere mpe, otú ahụ ka mmetụta njigide mmiri dị obere n'okpuru otu ego mgbakwunye ahụ. Ka mma.
8. N'ime ngwa agha agwakọtara mmiri, ọnụọgụgụ cellulose ether HPMC dị obere nke ukwuu, mana ọ nwere ike ime ka arụmọrụ owuwu nke ngwa agha mmiri ka mma nke ukwuu, ọ bụkwa ihe mgbakwunye bụ isi na-emetụta arụmọrụ nke ngwa agha. Nhọrọ ezi uche dị na ya nke hydroxypropyl methyl cellulose, arụmọrụ nke ngwa agha mmiri na-emetụta nke ukwuu.
Oge ozi: Eprel-28-2024