Dispersion of alpha-alumina ultrafine powders using 2-phosphonobutane-1,2,4-tricarboxylic acid for the implementation of a DCC process
In this paper, we compare the effectiveness of 2-phosphonobutane-1,2,4-tricarboxylic acid (PBTCA) with that of 4,5-dihydroxy-1,3-benzenedisulfonic acid (Tiron) as electrostatic dispersants for concentrated alpha-alumina ultrafine powder suspensions. Three grades of alpha alumina powders with diamete...
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| Veröffentlicht in: | Journal of the European Ceramic Society 2005-05, Vol.25 (7), p.1109-1118 |
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| creator | Penard, A.-L. Rossignol, F. Nagaraja, H.S. Pagnoux, C. Chartier, T. |
| description | In this paper, we compare the effectiveness of 2-phosphonobutane-1,2,4-tricarboxylic acid (PBTCA) with that of 4,5-dihydroxy-1,3-benzenedisulfonic acid (Tiron) as electrostatic dispersants for concentrated alpha-alumina ultrafine powder suspensions. Three grades of alpha alumina powders with diameters in the range of 100–300
nm are tested. The comparison based upon direct measurements of electrokinetic properties, adsorption isotherms and rheology shows that both PBTCA and Tiron are good candidates for dispersion. In addition, the method of adsorption of PBTCA and Tiron onto the alumina surface is described. Like Tiron, PBTCA is adsorbed as a monolayer through an inner sphere complex. The key contribution of the phosphonate foot of the PBTCA molecule in the adsorption mechanism is demonstrated and the influence of alumina surface chemistry, especially hydroxylation, on adsorption is pointed out. Finally, it is shown that the concentrated suspensions could be used to implement a shaping process by direct coagulation casting (DCC). |
| doi_str_mv | 10.1016/j.jeurceramsoc.2004.05.006 |
| format | Article |
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nm are tested. The comparison based upon direct measurements of electrokinetic properties, adsorption isotherms and rheology shows that both PBTCA and Tiron are good candidates for dispersion. In addition, the method of adsorption of PBTCA and Tiron onto the alumina surface is described. Like Tiron, PBTCA is adsorbed as a monolayer through an inner sphere complex. The key contribution of the phosphonate foot of the PBTCA molecule in the adsorption mechanism is demonstrated and the influence of alumina surface chemistry, especially hydroxylation, on adsorption is pointed out. Finally, it is shown that the concentrated suspensions could be used to implement a shaping process by direct coagulation casting (DCC).</description><identifier>ISSN: 0955-2219</identifier><identifier>EISSN: 1873-619X</identifier><identifier>DOI: 10.1016/j.jeurceramsoc.2004.05.006</identifier><language>eng</language><publisher>Oxford: Elsevier Ltd</publisher><subject>Al 2O 3 ; Alumina ultrafine powders ; Applied sciences ; Building materials. Ceramics. Glasses ; Ceramic industries ; Chemical industry and chemicals ; Direct coagulation casting ; Exact sciences and technology ; Miscellaneous ; Shaping ; Suspensions ; Technical ceramics</subject><ispartof>Journal of the European Ceramic Society, 2005-05, Vol.25 (7), p.1109-1118</ispartof><rights>2004 Elsevier Ltd</rights><rights>2005 INIST-CNRS</rights><rights>Distributed under a Creative Commons Attribution 4.0 International License</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c671t-638d75c590a15bec66b46a18d0be32297ef857e75fb4d4e87ee95a16fd1f777a3</citedby><cites>FETCH-LOGICAL-c671t-638d75c590a15bec66b46a18d0be32297ef857e75fb4d4e87ee95a16fd1f777a3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://dx.doi.org/10.1016/j.jeurceramsoc.2004.05.006$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>230,315,781,785,886,3551,27926,27927,45997</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=16695284$$DView record in Pascal Francis$$Hfree_for_read</backlink><backlink>$$Uhttps://hal.science/hal-00088047$$DView record in HAL$$Hfree_for_read</backlink></links><search><creatorcontrib>Penard, A.-L.</creatorcontrib><creatorcontrib>Rossignol, F.</creatorcontrib><creatorcontrib>Nagaraja, H.S.</creatorcontrib><creatorcontrib>Pagnoux, C.</creatorcontrib><creatorcontrib>Chartier, T.</creatorcontrib><title>Dispersion of alpha-alumina ultrafine powders using 2-phosphonobutane-1,2,4-tricarboxylic acid for the implementation of a DCC process</title><title>Journal of the European Ceramic Society</title><description>In this paper, we compare the effectiveness of 2-phosphonobutane-1,2,4-tricarboxylic acid (PBTCA) with that of 4,5-dihydroxy-1,3-benzenedisulfonic acid (Tiron) as electrostatic dispersants for concentrated alpha-alumina ultrafine powder suspensions. Three grades of alpha alumina powders with diameters in the range of 100–300
nm are tested. The comparison based upon direct measurements of electrokinetic properties, adsorption isotherms and rheology shows that both PBTCA and Tiron are good candidates for dispersion. In addition, the method of adsorption of PBTCA and Tiron onto the alumina surface is described. Like Tiron, PBTCA is adsorbed as a monolayer through an inner sphere complex. The key contribution of the phosphonate foot of the PBTCA molecule in the adsorption mechanism is demonstrated and the influence of alumina surface chemistry, especially hydroxylation, on adsorption is pointed out. Finally, it is shown that the concentrated suspensions could be used to implement a shaping process by direct coagulation casting (DCC).</description><subject>Al 2O 3</subject><subject>Alumina ultrafine powders</subject><subject>Applied sciences</subject><subject>Building materials. Ceramics. Glasses</subject><subject>Ceramic industries</subject><subject>Chemical industry and chemicals</subject><subject>Direct coagulation casting</subject><subject>Exact sciences and technology</subject><subject>Miscellaneous</subject><subject>Shaping</subject><subject>Suspensions</subject><subject>Technical ceramics</subject><issn>0955-2219</issn><issn>1873-619X</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2005</creationdate><recordtype>article</recordtype><recordid>eNqNkl2L1DAUhosoOK7-hyAoCNvxJG2-vFtm1BUWvFHwLqTpqZOhbWrSru4f8HebYdaPO3sRAuHJec45vEXxnMKWAhWvj9sjLtFhtEMKbssA6i3wLYB4UGyoklUpqP7ysNiA5rxkjOrHxZOUjgBUgtab4ufepwlj8mEkoSO2nw62tP0y-NGSpZ-j7fyIZArf20yRJfnxK2HldAgpnzE0y2xHLOklu6zLOXpnYxN-3PXeEet8S7oQyXxA4oepxwHH2c6_VWS_25EpBocpPS0edbZP-Oz-vig-v3v7aXdd3nx8_2F3dVM6Ielcikq1kjuuwVLeoBOiqYWlqoUGK8a0xE5xiZJ3Td3WqCSi5paKrqWdlNJWF8Wrc92D7c0U_WDjnQnWm-urG3N6AwCloJa3NLMvz2zu8duCaTaDTw77Pg8clmSYZpWqOFsDMsVArgGhplKtAKlWWtb_BxUHCdU6sOZ0DVhnszj1-OYMuhhSitj92ScFcwqnOZp_w2lO4TTA84pF_vzi3mKTs30X7eh8-ltBCM2zKXP7M4c5FLceo0nO4-iw9RHdbNrg1-h-AZdfAUc</recordid><startdate>20050501</startdate><enddate>20050501</enddate><creator>Penard, A.-L.</creator><creator>Rossignol, F.</creator><creator>Nagaraja, H.S.</creator><creator>Pagnoux, C.</creator><creator>Chartier, T.</creator><general>Elsevier Ltd</general><general>Elsevier</general><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7SR</scope><scope>8FD</scope><scope>JG9</scope><scope>7QQ</scope><scope>H8D</scope><scope>L7M</scope><scope>7TB</scope><scope>FR3</scope><scope>7QF</scope><scope>1XC</scope></search><sort><creationdate>20050501</creationdate><title>Dispersion of alpha-alumina ultrafine powders using 2-phosphonobutane-1,2,4-tricarboxylic acid for the implementation of a DCC process</title><author>Penard, A.-L. ; Rossignol, F. ; Nagaraja, H.S. ; Pagnoux, C. ; Chartier, T.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c671t-638d75c590a15bec66b46a18d0be32297ef857e75fb4d4e87ee95a16fd1f777a3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2005</creationdate><topic>Al 2O 3</topic><topic>Alumina ultrafine powders</topic><topic>Applied sciences</topic><topic>Building materials. 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Three grades of alpha alumina powders with diameters in the range of 100–300
nm are tested. The comparison based upon direct measurements of electrokinetic properties, adsorption isotherms and rheology shows that both PBTCA and Tiron are good candidates for dispersion. In addition, the method of adsorption of PBTCA and Tiron onto the alumina surface is described. Like Tiron, PBTCA is adsorbed as a monolayer through an inner sphere complex. The key contribution of the phosphonate foot of the PBTCA molecule in the adsorption mechanism is demonstrated and the influence of alumina surface chemistry, especially hydroxylation, on adsorption is pointed out. Finally, it is shown that the concentrated suspensions could be used to implement a shaping process by direct coagulation casting (DCC).</abstract><cop>Oxford</cop><pub>Elsevier Ltd</pub><doi>10.1016/j.jeurceramsoc.2004.05.006</doi><tpages>10</tpages></addata></record> |
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| subjects | Al 2O 3 Alumina ultrafine powders Applied sciences Building materials. Ceramics. Glasses Ceramic industries Chemical industry and chemicals Direct coagulation casting Exact sciences and technology Miscellaneous Shaping Suspensions Technical ceramics |
| title | Dispersion of alpha-alumina ultrafine powders using 2-phosphonobutane-1,2,4-tricarboxylic acid for the implementation of a DCC process |
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