Hydroxypropyl Methylcellulose (HPMC) bụ ngwakọta polymer eke eke ejiri mee ihe na-ewu, ọgwụ, nri na ubi ndị ọzọ. N'ụlọ ọrụ simenti, a na-ejikarị AnxinCel®HPMC eme ihe dị ka mgbakwunye iji melite arụmọrụ ciment nke ọma, ma kwalite nhazi, ịrụ ọrụ na ike ikpeazụ nke ngwakọta ciment.
1. Basic e ji mara na usoro nke omume nke HPMC
HPMC bụ ihe kemịkalụ enwetara site n'ịgbanwe cellulose site na ethylation, hydroxypropylation na methylation. Usoro ihe omimi ya gụnyere otutu hydrophilic na hydrophobic, nke na-enyere ya aka ịrụ ọtụtụ ọrụ na sistem ciment. HPMC na-arụ ọrụ ndị a na ciment:
Mmetụta siri ike
HPMC nwere mmetụta siri ike nke ukwuu ma nwee ike melite viscosity nke tapawa ciment, na-eme ka ngwakọta ciment dịkwuo otu n'oge agwakọta ma na-ezere stratification ma ọ bụ sedimentation. Nke a dị oké mkpa maka imeziwanye mmiri na nkwụsi ike nke tapawa ciment, karịsịa na kọmpat na-arụ ọrụ dị elu ma ọ bụ ihe ndị ọzọ na-achọsi ike, na-ahụ na ọ na-emeju ihe dị mma ma nwee njupụta dị elu.
Melite njide mmiri
HPMC nwere ike chịkwaa oke ikuku nke mmiri n'ime simenti mado ma gbuo oge ntọala mbụ nke ciment. Karịsịa na elu okpomọkụ ma ọ bụ akọrọ gburugburu, ọ nwere ike ịnọgide na-wettability nke ciment mado ma gbochie akaghi aka ihicha, si otú ahụ na-emeziwanye ihe owuwu. Ịdebe mmiri bụ ihe dị oké mkpa na-arụ ọrụ nke ihe ciment ma nwee ike igbochi nguzobe nke mgbawa nke ọma.
Melite adhesion ma welie mmiri mmiri
A na-agbakwunyekarị ihe mgbakwunye kemịkalụ ndị ọzọ na tapawa ciment, dị ka polymers, mineral admixtures, wdg, nke nwere ike imetụta mmiri nke tapawa ciment. HPMC nwere ike ịbawanye ike nke simenti, na-eme ka slurry dịkwuo plastik na mmiri mmiri, si otú ahụ na-eme ka arụmọrụ ụlọ dịkwuo mma. Tụkwasị na nke ahụ, HPMC nwekwara ike ime ka adhesion dị n'etiti ciment na ihe ndị ọzọ e ji ewu ụlọ (dị ka ájá na gravel) ma belata ihe omume nkewa.
Melite nguzogide mgbape
Ebe ọ bụ na AnxinCel®HPMC nwere ike melite njide mmiri nke ciment ma na-egbu oge usoro hydration, ọ nwekwara ike imeziwanye nkwụsị nke ihe simenti nke ọma. Karịsịa na mmalite mmalite mgbe ike ciment adịghị eru ọkwa zuru oke, ihe simenti na-adịkarị mfe mgbawa. Site na iji HPMC, enwere ike ibelata ọnụ ọgụgụ ciment nke mbelata na nguzobe mgbawa nke mmiri na-efu ngwa ngwa kpatara nwere ike ibelata.
2. Mmetụta nke HPMC na ngwa ciment
Melite ịrụ ọrụ ciment
Mmetụta dị arọ nke HPMC na-eme ka tapawa ciment dịkwuo mma. Maka ụdị simenti dị iche iche (dị ka ciment Portland nkịtị, ciment na-ekpo ọkụ ngwa ngwa, wdg), HPMC nwere ike ịkwalite mmụba nke slurry ma kwado ịwụsa na ịkpụzi n'oge a na-ewu ya. Na mgbakwunye, HPMC nwere ike ime ka tapawa simenti kwụsie ike n'oge a na-arụ ọrụ, belata ntinye ikuku, ma melite ogo nrụpụta n'ozuzu ya.
Melite ike ciment
Mgbakwunye nke HPMC nwere ike melite arụmọrụ ciment ike ruo n'ókè ụfọdụ. Ọ na-agbanwe nkesa nke mmiri na ciment, na-akwalite mmeghachi omume hydration nke otu ciment, ma si otú a na-eme ka ike siri ike nke ciment dịkwuo mma. N'ime ngwa bara uru, ịgbakwunye HPMC kwesịrị ekwesị nwere ike ịkwalite mmeghachi omume hydration mbụ nke ciment ma melite mkpakọ, mgbanwe na ike ike nke ciment.
Ọdịnaya emelitere
Mgbakwunye nke HPMC na-enyere aka melite ịdịte aka nke ciment. Karịsịa mgbe simenti na-ekpughe corrosive gburugburu (dị ka acid, alkali, saline, wdg), HPMC nwere ike welie kemịkalụ iguzogide na permeability eguzogide nke ciment, si otú ịgbatị ọrụ ndụ nke ciment owuwu. Na mgbakwunye, HPMC nwere ike ibelata porosity capillary nke ngwakọta ciment ma mee ka njupụta nke ciment dịkwuo, si otú ahụ belata ọ̀tụ̀tụ̀ ire ya na gburugburu ebe ọjọọ.
Melite mgbanwe gburugburu ebe obibi
N'okpuru ọnọdụ ihu igwe dị oke egwu, arụ ọrụ ciment na-emetụtakarị mgbanwe nke okpomọkụ na iru mmiri. HPMC nwere ike igbu oge nhazi oge nke ciment slurry wee belata nsogbu nke ihicha ngwa ngwa ma ọ bụ hydration gabigara ókè. Ya mere, ọ dị mma maka gburugburu ebe obibi na oke okpomọkụ, obere okpomọkụ na nnukwu iru mmiri mgbanwe.
3. kacha mma ojiji nke HPMC
Ọ bụ ezie na itinye HPMC na ciment nwere ike ime ka arụmọrụ ya dịkwuo mma, ojiji ya kwesịrị ịkpachara anya, karịsịa na ego agbakwunyere. Mgbakwunye HPMC nke ukwuu nwere ike ime ka viscosity nke tapawa ciment dị elu nke ukwuu, na-ebute ngwakọta na-enweghị isi ma ọ bụ ihe isi ike ụlọ. N'ozuzu, ego nke HPMC agbakwunyere kwesịrị ịchịkwa n'etiti 0.1% na 0.5% nke ciment uka, na uru a kapịrị ọnụ kwesịrị ka edozi ya dịka ụdị ciment, ngwa na gburugburu ebe obibi.
Isi mmalite dị iche iche, nkọwapụta na ogo mgbanwe nkeHPMC nwekwara ike inwe mmetụta dị iche iche na njirimara ciment. Ya mere, mgbe ị na-ahọrọ HPMC, ihe ndị dị ka molekụla arọ, hydroxypropyl na methylation ogo kwesịrị ịtụle nke ọma iji nweta mgbanwe kacha mma. Mmetụta.
Dị ka ihe dị mkpa ngbanwe ciment, AnxinCel®HPMC na-eme ka arụ ọrụ, ike, ịdịte aka na ngbanwe gburugburu ebe obibi nke ciment site na ịgbasa, na-eme ka njide mmiri dịkwuo mma, na-eme ka adhesion na nkwụsị mgbawa. Ngwa ya sara mbara na ụlọ ọrụ ciment ọ bụghị nanị na-eme ka ọrụ ciment na-arụ ọrụ n'ozuzu ya, ma na-enyekwa nkwado siri ike maka nyocha na mmepe nke ngwaahịa ciment ọhụrụ dị ka ihe na-arụ ọrụ dị elu na ihe eji ewu gburugburu ebe obibi. Ka ọrụ owuwu na-aga n'ihu na-abawanye ihe ha chọrọ maka ịrụ ọrụ ihe, HPMC nwere atụmanya ngwa sara mbara na ụlọ ọrụ ciment ma ga-anọgide na-abụ ihe mgbakwunye ciment dị mkpa.
Oge nzipu: Jan-16-2025