Fabrication of hard-shell microcapsules containing inorganic materials
•Hard-shell microcapsules containing Na2HPO4∙12H2O were fabricated.•Microcapsules depressed the supercooling of the inorganic hydrates.•Effects of the parameters in the process of fabrication on the microcapsule size were investigated.•The surfactants reduction in the process realized high void frac...
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| Veröffentlicht in: | International journal of refrigeration 2017-10, Vol.82, p.97-105 |
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| container_title | International journal of refrigeration |
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| creator | Tamaru, Masato Suzuki, Hiroshi Hidema, Ruri Komoda, Yoshiyuki Suzuki, Kosuke |
| description | •Hard-shell microcapsules containing Na2HPO4∙12H2O were fabricated.•Microcapsules depressed the supercooling of the inorganic hydrates.•Effects of the parameters in the process of fabrication on the microcapsule size were investigated.•The surfactants reduction in the process realized high void fraction of hollow microcapsules.
The fabrication method of silica hard shell microcapsules containing disodium hydrogen phosphate dodecahydrate (Na2HPO4⋅12H2O) has been developed. The effects of the mixing rates for the emulsification, of the volume ratios of solutions and of surfactant concentrations on the size of hollow microcapsules have been also studied. From the results, it was confirmed that silica hard shell microcapsules can contains Na2HPO4⋅12H2O with the present method using hollow microcapsules. The present micro-encapsulated Na2HPO4⋅12H2O was also found to cause the supercooling depression effect. As the fabricated microcapsules have no flammability, the present microcapsule was concluded to be a promising item not only for latent heat transportation media but also for the static thermal storage materials for architectural structures. From the studies on the fabrication parameters, it was concluded that the control of the surfactant concentration is effective for controlling the size of microcapsule. |
| doi_str_mv | 10.1016/j.ijrefrig.2017.06.036 |
| format | Article |
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The fabrication method of silica hard shell microcapsules containing disodium hydrogen phosphate dodecahydrate (Na2HPO4⋅12H2O) has been developed. The effects of the mixing rates for the emulsification, of the volume ratios of solutions and of surfactant concentrations on the size of hollow microcapsules have been also studied. From the results, it was confirmed that silica hard shell microcapsules can contains Na2HPO4⋅12H2O with the present method using hollow microcapsules. The present micro-encapsulated Na2HPO4⋅12H2O was also found to cause the supercooling depression effect. As the fabricated microcapsules have no flammability, the present microcapsule was concluded to be a promising item not only for latent heat transportation media but also for the static thermal storage materials for architectural structures. From the studies on the fabrication parameters, it was concluded that the control of the surfactant concentration is effective for controlling the size of microcapsule.</description><identifier>ISSN: 0140-7007</identifier><identifier>EISSN: 1879-2081</identifier><identifier>DOI: 10.1016/j.ijrefrig.2017.06.036</identifier><language>eng</language><publisher>Paris: Elsevier Ltd</publisher><subject>Chaleur latente ; Cooling ; Flammability ; Heat transfer ; Hydrate inorganique ; Hydrogen storage ; Inorganic chemistry ; Inorganic hydrate ; Inorganic materials ; Latent heat ; Matériau à changement de phase ; Microcapsule ; Microencapsulation ; Phase change material ; Silica ; Silicon dioxide ; Sodium hydrogen phosphate ; Supercooling ; Surfactants ; Thermal storage</subject><ispartof>International journal of refrigeration, 2017-10, Vol.82, p.97-105</ispartof><rights>2017 Elsevier Ltd and IIR</rights><rights>Copyright Elsevier Science Ltd. Oct 2017</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c465t-4f1f784ffeb5af5d0338e02c3b19bb9e4e433697548fce593bb628694f8fdaf83</citedby><cites>FETCH-LOGICAL-c465t-4f1f784ffeb5af5d0338e02c3b19bb9e4e433697548fce593bb628694f8fdaf83</cites><orcidid>0000-0003-1570-0029</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://dx.doi.org/10.1016/j.ijrefrig.2017.06.036$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,780,784,3548,27922,27923,45993</link.rule.ids></links><search><creatorcontrib>Tamaru, Masato</creatorcontrib><creatorcontrib>Suzuki, Hiroshi</creatorcontrib><creatorcontrib>Hidema, Ruri</creatorcontrib><creatorcontrib>Komoda, Yoshiyuki</creatorcontrib><creatorcontrib>Suzuki, Kosuke</creatorcontrib><title>Fabrication of hard-shell microcapsules containing inorganic materials</title><title>International journal of refrigeration</title><description>•Hard-shell microcapsules containing Na2HPO4∙12H2O were fabricated.•Microcapsules depressed the supercooling of the inorganic hydrates.•Effects of the parameters in the process of fabrication on the microcapsule size were investigated.•The surfactants reduction in the process realized high void fraction of hollow microcapsules.
The fabrication method of silica hard shell microcapsules containing disodium hydrogen phosphate dodecahydrate (Na2HPO4⋅12H2O) has been developed. The effects of the mixing rates for the emulsification, of the volume ratios of solutions and of surfactant concentrations on the size of hollow microcapsules have been also studied. From the results, it was confirmed that silica hard shell microcapsules can contains Na2HPO4⋅12H2O with the present method using hollow microcapsules. The present micro-encapsulated Na2HPO4⋅12H2O was also found to cause the supercooling depression effect. As the fabricated microcapsules have no flammability, the present microcapsule was concluded to be a promising item not only for latent heat transportation media but also for the static thermal storage materials for architectural structures. From the studies on the fabrication parameters, it was concluded that the control of the surfactant concentration is effective for controlling the size of microcapsule.</description><subject>Chaleur latente</subject><subject>Cooling</subject><subject>Flammability</subject><subject>Heat transfer</subject><subject>Hydrate inorganique</subject><subject>Hydrogen storage</subject><subject>Inorganic chemistry</subject><subject>Inorganic hydrate</subject><subject>Inorganic materials</subject><subject>Latent heat</subject><subject>Matériau à changement de phase</subject><subject>Microcapsule</subject><subject>Microencapsulation</subject><subject>Phase change material</subject><subject>Silica</subject><subject>Silicon dioxide</subject><subject>Sodium hydrogen phosphate</subject><subject>Supercooling</subject><subject>Surfactants</subject><subject>Thermal storage</subject><issn>0140-7007</issn><issn>1879-2081</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2017</creationdate><recordtype>article</recordtype><recordid>eNqFkE9LwzAYxoMoOKdfQQqeW980aZrelOFUGHjRc0jTN1vKlsykE_z2ZkzPnp7L84fnR8gthYoCFfdj5caINrp1VQNtKxAVMHFGZlS2XVmDpOdkBpRD2QK0l-QqpRGyERo5I8ul7qMzenLBF8EWGx2HMm1wuy12zsRg9D4dtpgKE_yknXd-XTgf4lp7Z4qdnjA6vU3X5MJmwZtfnZOP5dP74qVcvT2_Lh5XpeGimUpuqW0ltxb7RttmAMYkQm1YT7u-75AjZ0x0bcOlNdh0rO9FLUXHrbSDtpLNyd2pdx_D5wHTpMZwiD5Pqhq4gLrtapFd4uTKB1LKbNQ-up2O34qCOjJTo_pjpo7MFAiVmeXgwymI-cOXw6iScegNDi6imdQQ3H8VPw05eak</recordid><startdate>20171001</startdate><enddate>20171001</enddate><creator>Tamaru, Masato</creator><creator>Suzuki, Hiroshi</creator><creator>Hidema, Ruri</creator><creator>Komoda, Yoshiyuki</creator><creator>Suzuki, Kosuke</creator><general>Elsevier Ltd</general><general>Elsevier Science Ltd</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7TB</scope><scope>8FD</scope><scope>FR3</scope><orcidid>https://orcid.org/0000-0003-1570-0029</orcidid></search><sort><creationdate>20171001</creationdate><title>Fabrication of hard-shell microcapsules containing inorganic materials</title><author>Tamaru, Masato ; Suzuki, Hiroshi ; Hidema, Ruri ; Komoda, Yoshiyuki ; Suzuki, Kosuke</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c465t-4f1f784ffeb5af5d0338e02c3b19bb9e4e433697548fce593bb628694f8fdaf83</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2017</creationdate><topic>Chaleur latente</topic><topic>Cooling</topic><topic>Flammability</topic><topic>Heat transfer</topic><topic>Hydrate inorganique</topic><topic>Hydrogen storage</topic><topic>Inorganic chemistry</topic><topic>Inorganic hydrate</topic><topic>Inorganic materials</topic><topic>Latent heat</topic><topic>Matériau à changement de phase</topic><topic>Microcapsule</topic><topic>Microencapsulation</topic><topic>Phase change material</topic><topic>Silica</topic><topic>Silicon dioxide</topic><topic>Sodium hydrogen phosphate</topic><topic>Supercooling</topic><topic>Surfactants</topic><topic>Thermal storage</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Tamaru, Masato</creatorcontrib><creatorcontrib>Suzuki, Hiroshi</creatorcontrib><creatorcontrib>Hidema, Ruri</creatorcontrib><creatorcontrib>Komoda, Yoshiyuki</creatorcontrib><creatorcontrib>Suzuki, Kosuke</creatorcontrib><collection>CrossRef</collection><collection>Mechanical & Transportation Engineering Abstracts</collection><collection>Technology Research Database</collection><collection>Engineering Research Database</collection><jtitle>International journal of refrigeration</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Tamaru, Masato</au><au>Suzuki, Hiroshi</au><au>Hidema, Ruri</au><au>Komoda, Yoshiyuki</au><au>Suzuki, Kosuke</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Fabrication of hard-shell microcapsules containing inorganic materials</atitle><jtitle>International journal of refrigeration</jtitle><date>2017-10-01</date><risdate>2017</risdate><volume>82</volume><spage>97</spage><epage>105</epage><pages>97-105</pages><issn>0140-7007</issn><eissn>1879-2081</eissn><abstract>•Hard-shell microcapsules containing Na2HPO4∙12H2O were fabricated.•Microcapsules depressed the supercooling of the inorganic hydrates.•Effects of the parameters in the process of fabrication on the microcapsule size were investigated.•The surfactants reduction in the process realized high void fraction of hollow microcapsules.
The fabrication method of silica hard shell microcapsules containing disodium hydrogen phosphate dodecahydrate (Na2HPO4⋅12H2O) has been developed. The effects of the mixing rates for the emulsification, of the volume ratios of solutions and of surfactant concentrations on the size of hollow microcapsules have been also studied. From the results, it was confirmed that silica hard shell microcapsules can contains Na2HPO4⋅12H2O with the present method using hollow microcapsules. The present micro-encapsulated Na2HPO4⋅12H2O was also found to cause the supercooling depression effect. As the fabricated microcapsules have no flammability, the present microcapsule was concluded to be a promising item not only for latent heat transportation media but also for the static thermal storage materials for architectural structures. From the studies on the fabrication parameters, it was concluded that the control of the surfactant concentration is effective for controlling the size of microcapsule.</abstract><cop>Paris</cop><pub>Elsevier Ltd</pub><doi>10.1016/j.ijrefrig.2017.06.036</doi><tpages>9</tpages><orcidid>https://orcid.org/0000-0003-1570-0029</orcidid><oa>free_for_read</oa></addata></record> |
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| ispartof | International journal of refrigeration, 2017-10, Vol.82, p.97-105 |
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| language | eng |
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| source | ScienceDirect Journals (5 years ago - present) |
| subjects | Chaleur latente Cooling Flammability Heat transfer Hydrate inorganique Hydrogen storage Inorganic chemistry Inorganic hydrate Inorganic materials Latent heat Matériau à changement de phase Microcapsule Microencapsulation Phase change material Silica Silicon dioxide Sodium hydrogen phosphate Supercooling Surfactants Thermal storage |
| title | Fabrication of hard-shell microcapsules containing inorganic materials |
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