1.Wet ngwakọta ngwa agha: ngwa ngwa agwakọta bụ ụdị simenti, nchịkọta dị mma, admixture na mmiri, na dị ka ihe onwunwe nke ihe dị iche iche dị iche iche si dị, dị ka otu akụkụ, mgbe a tụrụ ya na ebe a na-agwakọta, agwakọta, na-ebuga ya na ebe a na-eji gwongworo ahụ eme ihe, wee banye n'ime ụlọ ahịa pụrụ iche na-echekwa akpa ahụ ma jiri ngwakọta mmiri gwụchara maka oge a kapịrị ọnụ.
A na-eji 2.Hydroxypropyl methyl cellulose mee ihe dị ka onye na-ejide mmiri maka ciment mortar na retarder maka mgbapụta ngwa agha. N'ihe banyere gypsum dị ka ihe nkedo iji meziwanye ngwa na ịgbatị oge ọrụ, njigide mmiri nke HPMC na-egbochi slurry ngwa ngwa ngwa ngwa mgbe ihichachara, ma na-eme ka ike dịkwuo ike mgbe ọ gbasasịrị. Njide mmiri bụ ihe dị mkpa nke hydroxypropyl methyl cellulose HPMC, ọ bụkwa ihe na-eche banyere ọtụtụ ndị na-emepụta ngwa agha mmiri-agwakọta mmiri. Ihe ndị na-emetụta mmetụta njide mmiri nke mmiri mmiri gwakọtara ọnụ gụnyere ọnụọgụ HPMC agbakwunyere, viscosity nke HPMC, ịdị mma nke ihe ndị ahụ na okpomọkụ nke gburugburu ebe obibi.
3.The isi ọrụ nke hydroxypropyl methyl celluloseHPMCna mmiri-agwakọta ngwa agha tumadi na-agụnye atọ akụkụ, otu bụ magburu onwe mmiri na-ejide ikike, nke ọzọ bụ mmetụta na agbanwe agbanwe na thixotropy nke mmiri-agwakọta ngwa agha, na nke atọ bụ mmekọrịta na ciment. Njide mmiri nke cellulose ether na-adabere na ọnụego mmịpụta mmiri nke isi, ihe mejupụtara nke ngwa agha ahụ, ọkpụrụkpụ nke akwa akwa akwa, mmiri chọrọ ngwa ngwa, na oge nhazi. Ka nghọta nke hydroxypropyl methyl cellulose dị elu, ka mma na-ejigide mmiri.
4.Ihe na-emetụta njide mmiri nke mmiri mmiri na-ejikọta mmiri na-agụnye viscosity cellulose ether, ego mgbakwunye, nha nha na okpomọkụ. Ka viscosity nke cellulose ether dị ukwuu, otú ahụ ka njigide mmiri dị mma. Viscosity bụ oke dị mkpa nke arụmọrụ HPMC. Maka otu ngwaahịa ahụ, nsonaazụ nke iji ụzọ dị iche iche iji tụọ viscosity dịgasị iche iche, ụfọdụ na-enwekwa oghere abụọ. Ya mere, ntụnyere nke viscosity ga-emerịrị n'otu usoro ule, gụnyere okpomọkụ, spindle, wdg.
5.Generally na-ekwu okwu, elu nke viscosity, mma na-ejigide mmiri. Otú ọ dị, ka viscosity dị elu, ịdị arọ nke HPMC dị elu ma na-ebelata solubility nke HPMC, nke nwere mmetụta na-adịghị mma na ike na ịrụ ọrụ nke ngwa agha. Nke dị elu nke viscosity, otú ahụ ka ọ na-apụta ìhè nke ọma mmetụta nke ngwa agha ahụ, ma ọ dịghị ihe jikọrọ ya na ya. Nke dị elu nke viscosity, ka viscous nke mmiri mmiri na-eme ka ọ dịkwuo mma, na-arụ ọrụ nke ọma na-arụ ọrụ nke ọma, ịrụ ọrụ nke scraper viscous na nke dị elu na-ejikọta ya na mkpụrụ. Otú ọ dị, ụbara ike nhazi nke ngwa agha mmiri n'onwe ya adịghị enyere aka. Ihe owuwu abụọ ahụ enweghị ọrụ mgbochi sag doro anya. N'ụzọ dị iche, ụfọdụ viscosity dị obere na obere ma gbanwee hydroxypropyl methyl cellulose nwere ọmarịcha arụmọrụ n'ịkwalite ike nhazi nke ngwa agha mmiri.
6.Ka ukwuu nke cellulose ether agbakwunyere na mmiri mmiri mmiri HPMC, ka mma na-ejigide mmiri, na elu viscosity, ka mma na-ejigide mmiri. Ịdị mma bụkwa ihe nrịbama arụmọrụ dị mkpa nke hydroxypropyl methyl cellulose.
7.The fineness nke hydroxypropyl methyl cellulose nwekwara mmetụta ụfọdụ na ya mmiri njide. N'ozuzu, maka hydroxypropyl methyl cellulose nwere otu viscosity na ịdị mma dị iche iche, nke dị ntakịrị ntakịrị, na-ebelata mmetụta njide mmiri n'okpuru otu ego mgbakwunye. nke ka mma.
8.In mmiri-mixed ngwa agha, ihe mgbakwunye ego nke cellulose ether HPMC bụ nnọọ ala, ma ọ nwere ike budata mma na-ewu arụmọrụ nke mmiri ngwa agha, na ọ bụ isi ihe mgbakwunye na tumadi 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 nzipu: Eprel-28-2024