Influence of Silica on Polymerization of Chromate Coating
The influence of the amount of silica added to dry-in-place chromate and of drying temperature were analysed by thermal analysis and mass analysis. The interaction between silica and chromium is estimated further. At temperatures of 80-200°C, two reaction were observed: dehydration condensation of t...
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| Veröffentlicht in: | Hyōmen gijutsu 1995/03/01, Vol.46(3), pp.265-269 |
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| creator | SUDA, Arata KAWAGUCHI, Jun OGINO, Takao |
| description | The influence of the amount of silica added to dry-in-place chromate and of drying temperature were analysed by thermal analysis and mass analysis. The interaction between silica and chromium is estimated further. At temperatures of 80-200°C, two reaction were observed: dehydration condensation of the silanol group and polymerization of the chromate constituent. When silica was added, the polymerization enthalpy of the chromate constituent decreased. This was caused by a reduction in the chance of bonding between the ions of the chromate constituent due to the dilution effect of silica particles in dried coating. This demonstrates that polymerization of the chromate coating is obstructed by the addition of silica. Change in chromium fixation rate in aqueous solution is good agreement with the enthalpy and the polymerization behavior of chromate constituent. Silica in the coating forms coordination cross-linking, and the anions in the chromate constituent work as a bridging group in this case. Thus it is postulated that silica particles are combined with each other by the chromate constituent. |
| doi_str_mv | 10.4139/sfj.46.265 |
| format | Article |
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The interaction between silica and chromium is estimated further. At temperatures of 80-200°C, two reaction were observed: dehydration condensation of the silanol group and polymerization of the chromate constituent. When silica was added, the polymerization enthalpy of the chromate constituent decreased. This was caused by a reduction in the chance of bonding between the ions of the chromate constituent due to the dilution effect of silica particles in dried coating. This demonstrates that polymerization of the chromate coating is obstructed by the addition of silica. Change in chromium fixation rate in aqueous solution is good agreement with the enthalpy and the polymerization behavior of chromate constituent. Silica in the coating forms coordination cross-linking, and the anions in the chromate constituent work as a bridging group in this case. Thus it is postulated that silica particles are combined with each other by the chromate constituent.</description><identifier>ISSN: 0915-1869</identifier><identifier>EISSN: 1884-3409</identifier><identifier>DOI: 10.4139/sfj.46.265</identifier><language>eng ; jpn</language><publisher>Tokyo: The Surface Finishing Society of Japan</publisher><subject>Dry-in-place Chromate ; Mass Analysis ; Polymerization Enthalpy ; Silica ; Thermal Analysis</subject><ispartof>Journal of The Surface Finishing Society of Japan, 1995/03/01, Vol.46(3), pp.265-269</ispartof><rights>The Surface Finishing Society of Japan</rights><rights>1995 INIST-CNRS</rights><rights>Copyright Japan Science and Technology Agency 1995</rights><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c2865-fef095c8a76b4c37eca0fe6070b73a0b986aa6a941ef18e335e7404c0c7604473</citedby></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,776,780,27903,27904</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=3566671$$DView record in Pascal Francis$$Hfree_for_read</backlink></links><search><creatorcontrib>SUDA, Arata</creatorcontrib><creatorcontrib>KAWAGUCHI, Jun</creatorcontrib><creatorcontrib>OGINO, Takao</creatorcontrib><title>Influence of Silica on Polymerization of Chromate Coating</title><title>Hyōmen gijutsu</title><addtitle>Journal of The Surface Finishing Society of Japan</addtitle><description>The influence of the amount of silica added to dry-in-place chromate and of drying temperature were analysed by thermal analysis and mass analysis. The interaction between silica and chromium is estimated further. At temperatures of 80-200°C, two reaction were observed: dehydration condensation of the silanol group and polymerization of the chromate constituent. When silica was added, the polymerization enthalpy of the chromate constituent decreased. This was caused by a reduction in the chance of bonding between the ions of the chromate constituent due to the dilution effect of silica particles in dried coating. This demonstrates that polymerization of the chromate coating is obstructed by the addition of silica. Change in chromium fixation rate in aqueous solution is good agreement with the enthalpy and the polymerization behavior of chromate constituent. Silica in the coating forms coordination cross-linking, and the anions in the chromate constituent work as a bridging group in this case. Thus it is postulated that silica particles are combined with each other by the chromate constituent.</description><subject>Dry-in-place Chromate</subject><subject>Mass Analysis</subject><subject>Polymerization Enthalpy</subject><subject>Silica</subject><subject>Thermal Analysis</subject><issn>0915-1869</issn><issn>1884-3409</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>1995</creationdate><recordtype>article</recordtype><recordid>eNptkE9LwzAYh4MoOKcXP0FBT0LnmyZNmqMU_wwGCuo5vAvJltG1M-kO89Ob2bGDeElI3uf3S3gIuaYw4ZSp--hWEy4mhShPyIhWFc8ZB3VKRqBomdNKqHNyEeMKgLFSyBFR09Y1W9sam3Uue_eNN5h1bfbWNbu1Df4be5-OaVYvQ7fG3mZ1l-7axSU5c9hEe3XYx-Tz6fGjfslnr8_T-mGWm6ISZe6sA1WaCqWYc8OkNQjOCpAwlwxhriqBKFBxah2tbPqWlRy4ASMFcC7ZmNwMvZvQfW1t7PWq24Y2PakpVxRUAYVK1N1AmdDFGKzTm-DXGHaagt6r0UmN5kInNQm-PVRiNNi4gK3x8ZhIZoSQNGHwp9P4_tdHH9A3_zfXQ2QVe1zYYyWG3pvG7lGqKrXH2bCk1HFqlhi0bdkPTuaKgQ</recordid><startdate>19950301</startdate><enddate>19950301</enddate><creator>SUDA, Arata</creator><creator>KAWAGUCHI, Jun</creator><creator>OGINO, Takao</creator><general>The Surface Finishing Society of Japan</general><general>Hyomen Gijutsu Kyokai</general><general>Japan Science and Technology Agency</general><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7SR</scope><scope>8BQ</scope><scope>8FD</scope><scope>JG9</scope></search><sort><creationdate>19950301</creationdate><title>Influence of Silica on Polymerization of Chromate Coating</title><author>SUDA, Arata ; KAWAGUCHI, Jun ; OGINO, Takao</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c2865-fef095c8a76b4c37eca0fe6070b73a0b986aa6a941ef18e335e7404c0c7604473</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng ; jpn</language><creationdate>1995</creationdate><topic>Dry-in-place Chromate</topic><topic>Mass Analysis</topic><topic>Polymerization Enthalpy</topic><topic>Silica</topic><topic>Thermal Analysis</topic><toplevel>online_resources</toplevel><creatorcontrib>SUDA, Arata</creatorcontrib><creatorcontrib>KAWAGUCHI, Jun</creatorcontrib><creatorcontrib>OGINO, Takao</creatorcontrib><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>Engineered Materials Abstracts</collection><collection>METADEX</collection><collection>Technology Research Database</collection><collection>Materials Research Database</collection><jtitle>Hyōmen gijutsu</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>SUDA, Arata</au><au>KAWAGUCHI, Jun</au><au>OGINO, Takao</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Influence of Silica on Polymerization of Chromate Coating</atitle><jtitle>Hyōmen gijutsu</jtitle><addtitle>Journal of The Surface Finishing Society of Japan</addtitle><date>1995-03-01</date><risdate>1995</risdate><volume>46</volume><issue>3</issue><spage>265</spage><epage>269</epage><pages>265-269</pages><artnum>265</artnum><issn>0915-1869</issn><eissn>1884-3409</eissn><abstract>The influence of the amount of silica added to dry-in-place chromate and of drying temperature were analysed by thermal analysis and mass analysis. The interaction between silica and chromium is estimated further. At temperatures of 80-200°C, two reaction were observed: dehydration condensation of the silanol group and polymerization of the chromate constituent. When silica was added, the polymerization enthalpy of the chromate constituent decreased. This was caused by a reduction in the chance of bonding between the ions of the chromate constituent due to the dilution effect of silica particles in dried coating. This demonstrates that polymerization of the chromate coating is obstructed by the addition of silica. Change in chromium fixation rate in aqueous solution is good agreement with the enthalpy and the polymerization behavior of chromate constituent. Silica in the coating forms coordination cross-linking, and the anions in the chromate constituent work as a bridging group in this case. 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| issn | 0915-1869 1884-3409 |
| language | eng ; jpn |
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| source | J-STAGE Free; Elektronische Zeitschriftenbibliothek - Frei zugängliche E-Journals |
| subjects | Dry-in-place Chromate Mass Analysis Polymerization Enthalpy Silica Thermal Analysis |
| title | Influence of Silica on Polymerization of Chromate Coating |
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