1. Hydroxypropyl methylcellulose (HPMC)bụ ihe na-abụghị ionic cellulose ether ọtụtụ ebe na-ewu ụlọ ọrụ, tumadi dị ka a dispersant, thickener na ihe nkedo. Ọ nwere mma mmiri solubility, ndim, njide mmiri na mmanu mmanu, na nwere ike budata mma ewu arụmọrụ na ikpeazụ mmetụta nke ihe owuwu. Ya mere, a na-eji HPMC eme ihe n'ọtụtụ ebe n'ihe eji ewu ụlọ dịka ngwa ngwa ciment, nrapado taịlị, ntụ ntụ, ngwa ngwa na-edozi onwe ya, wdg.
2. Ọrụ HPMC dị ka onye na-ekesa
Isi ọrụ nke dispersant bụ evenly kesaa siri ike irighiri na aqueous usoro, gbochie urughuru agglomeration, na melite nkwụsi ike nke ihe owuwu. Dị ka onye na-ekesa nke ọma nke ọma, HPMC na-arụ ọrụ ndị a n'ime ihe owuwu ụlọ:
Mgbochi urughuru sedimentation: HPMC nwere ike n'ụzọ dị irè ibelata sedimentation ọnụego nke irighiri na simenti ma ọ bụ gypsum slurry, na-eme ka ngwakọta ọzọ edo, si otú mma fluidity na uniformity nke ihe owuwu.
Meziwanye arụmọrụ nke ihe: N'ịrụ ngwa agha, uzuzu putty na ihe ndị ọzọ, HPMC nwere ike imeziwanye mgbasa nke ntụ ntụ, mee ka ngwa ihe dị nro n'oge a na-ewu ụlọ, ma zere agglomeration na agglomeration.
Melite mmeghachi omume hydration ciment: HPMC na-enyere aka kesaa irighiri ciment n'otu n'otu, kwalite usoro mmeghachi omume hydration, ma melite ike na nkwụsi ike nke tapawa ciment.
3. Ọrụ nke HPMC dị ka thickener
Isi ọrụ nke thickener bụ ịbawanye viscosity nke usoro ahụ ka ihe ụlọ ahụ nwee ike ịrụ ọrụ nke ọma n'oge usoro ihe owuwu. Dị ka onye na-agbapụta nke ọma, HPMC bụ isi ọrụ na ụlọ ọrụ ihe owuwu gụnyere:
Mee ka viscosity nke ngwa agha dịkwuo elu: HPMC nwere ike ịbawanye viscosity nke ọma na ngwa ngwa, ntụ ntụ ntụ, nrapado tile na ihe ndị ọzọ na-ewu ụlọ, na-eme ka ọ dịkwuo mfe ịmepụta na ibelata sagging, karịsịa maka ihe owuwu kwụ ọtọ, dị ka mkpuchi mgbidi.
Mee ka njide mmiri dịkwuo elu: HPMC nwere ike imeziwanye ikike njide mmiri nke ciment mortar, belata mmiri ozuzo, gbochie mgbawa nke oke mmiri na-efunahụ, ma melite ịdịte aka nke ihe ụlọ.
Na-ebuli ịrụ ọrụ ihe owuwu: N'ime ngwa ndị dị ka ngwa agha na-ebuli onwe ya, HPMC nwere ike imeziwanye mmiri mmiri ma hụ na viscosity kwesịrị ekwesị, si otú ahụ hụ na mgbasa nke otu ihe n'oge a na-ewu ma na-eme ka ala dị larịị.
4. Ọrụ nke HPMC dị ka ihe nkedo
Isi ọrụ nke ihe nkedo bụ imeziwanye njikọ dị n'etiti ihe ma hụ na ihe owuwu siri ike. Dị ka ihe nkedo, ngwa HPMC n'ihe eji arụ ụlọ gụnyere:
Mee ka ike njikọ nke tile adhesives dịkwuo elu: HPMC na-enye adhesives taịlị ihe njikọ dị elu, na-eme ka njikọ dị n'etiti taịlị na oyi akwa isi sie ike ma na-ebelata ohere nke taịl nile dapụ.
Melite adhesion nke putty ntụ ntụ: Na mgbidi putty, HPMC nwere ike welie ike nke njikọ dị n'etiti putty na isi oyi akwa, meziwanye nkwụsi ike na mgbape mgbape nke putty, ma hụ na mgbidi mgbidi dị larịị.
Na-ebuli nkwụsi ike nke ngwa agha na-ebuli onwe ya: HPMC na-eme ka ike njikọ nke ngwa agha na-ebuli onwe ya elu site n'ịchịkwa ọnụ mmiri nke evaporation, igbochi stratification na cracking, na-eme ka ọ kwụsie ike n'oge a na-ewu ụlọ.
Hydroxypropyl methylcellulose (HPMC) na-arụ ọrụ dị mkpa dị ka onye na-ekesa, thickener na ihe nkedo na ihe owuwu ụlọ. Ọ bụghị naanị na ọ na-eme ka arụ ọrụ ụlọ nke ihe owuwu ụlọ dịkwuo mma, kamakwa ọ na-eme ka mmetụta ikpeazụ na-eme ihe. HPMC na-eme ka mmiri dị ọcha na ịdị n'otu nke ngwa agha dị mma site n'ịgbasa ihe siri ike na igbochi sedimentation; ọ na-eme ka viscosity na njigide mmiri nke ihe ndị dị na ya na-eme ka ọ dịkwuo mma, na-ebelata mgbawa na sagging; dị ka ihe nkedo, ọ na-eme ka adhesion nke ihe ndị dị ka ihe ntanye tile na putty powder, na-eme ka nkwụsi ike na ịdịte aka nke ihe owuwu. Ya mere, HPMC abụrụla ihe mgbakwunye na-arụ ọrụ dị mkpa na ụlọ ọrụ ihe owuwu nke oge a, na-enye nkwado siri ike maka ịkwalite ogo ụlọ na ịrụ ọrụ nke ọma.
Oge nzipu: Mar-25-2025