Usuku lwePost: 12, Aug, 2024
1. I-eAgent esuselwa ku-polycarboxyylic acid acid esuselwa ku-agent-aciving acicing esuselwa ku-ejenti yokunciphisa amanzi ephezulu kakhulu kulokho:
Owokuqala ukwahlukahluka kanye nokushintsha kwesakhiwo samangqamuzana; Okwesibili ukuqhubeka nokugxila futhi kuthuthukise izinzuzo zokunciphisa amanzi anyuse amandla aphezulu, futhi kufinyelelwe izinqubo eziluhlaza nokungcola.
Ukusuka kwinqubo yokusebenza, ukwakheka kwamangqamuzana kwe-polycarboxbylic acid-e-agent ekhuthazayo yamanzi kuhlanganiswa. Iqembu eliqinile le-polar anionic "i-anching" ku-main chain isetshenziselwa i-adcerb kwizinhlanzi zokonga. I-com ye-comb yangaphandle isekelwa amaketanga amaningi egatsha. Isakhiwo sezinyo sinikeza umphumela owanele wendawo yokuhlakazwa kokuhlakazeka okwengeziwe kwezinhlayiya zosenyusi. Uma kuqhathaniswa nokuphindwa kukagesi ungqimba kagesi ophindwe kabili wama-naphthalene-based amanzi anciphisa ama-ejenti, izithiyo ezibucayi zigcina ukuhlakazeka kube isikhathi eside kakhulu.
Ngokushintsha okufanele ukwakheka kwesakhiwo se-polycarboxylate enciphisa amanzi kanye nokushintsha okulungile kokushintshana kwamaketanga aseceleni, i-ejenti ephezulu yokunciphisa amanzi kanye nokunciphisa amandla okunciphisa amanzi afanelekile afanele.
Ama-polycarboxxyylic acid acid acicing agents angashintshwa futhi aguqulwe ngokuya ngezidingo zokuthola inhloso yokushintsha ukusebenza, kunokuba usebenzise okulula ukuguqulwa. Ngokusekelwe kulokhu kuqonda, kungasikhuthaza ukuba sithuthukise ubuchwepheshe bethu besicelo ngokuzayo.
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Izinhlobo ezahlukene zikasimende zinezindawo ezihluke kakhulu ze-polycarboxylic acid superplastizers acid, ngakho-ke kubaluleke kakhulu ukuthola amaphuzu wokugcwaliswa kwamamitha ahlukile. Kodwa-ke, uma umsebenzisi ubeka ukuthi kuphela i-1.0% ivunyelwa ukungezwa, uma kukhethwe usimende, kungaba nzima ngokuhambisana nomhlinzeki wokuzibandakanya, futhi indlela ehlanganisiwe ivame ukungabi namphumela omncane.
Umlotha Wezinga Lokuqala unokuzivumelanisa nezimo okuhle, kanti umlotha weleveli wesibili kanye nesithathu uvame ukungabilungeli. Ngalesi sikhathi, noma ngabe inani le-polycarboxylic acid likhuphukile, umphumela awubonakali. Imvamisa lapho uhlobo oluthile lwesimende noma umlotha ongemuhle lunokuguquguquka okumpofu kakhulu ku-admixtures, futhi awuseneliseke ngokuphelele lapho ushintsha komunye umphikisi, ekugcineni ungahle uthathe indawo ye-centential.
I- 3.Inkinga yokuqukethwe kodaka esihlabathini:
Lapho okuqukethwe kwe-maud kwesihlabathi kuphezulu, izinga lokunciphisa lamanzi le-ejenti ye-polycarboxylate esuselwa ku-polycarboxylate azoncishiswa kakhulu. Ukusetshenziswa kwama-naphthalene-based agents anciphisa amanzi kuvame ukuxazululwa ngokwandisa umthamo, ngenkathi ama-polycarboxylic acid acid acid agents Agents aguquki kakhulu lapho umthamo ukhuphuka. Ezimweni eziningi, lapho uxhaso lungafikanga kuleli zinga elidingekayo, ukhonkolo usuqalile ukopha. Ngalesi sikhathi, umphumela wesilinganiso sokulungiswa kwesihlabathi, okwandayo okuqukethwe komoya noma ukwengeza okukhulu ngeke kube kuhle kakhulu. Indlela engcono kakhulu ukunciphisa okuqukethwe kodaka.
Isikhathi sePosi: Aug-12-2024
