Thermal performances of stearic acid/sepiolite composite form-stable phase change materials with improved thermal conductivity for thermal energy storage
To improve leak-proof performance of phase change materials (PCMs), hydrochloric acid-modified sepiolite (SEP) was used to encapsulate stearic acid (SA), and expanded graphite (EG) was employed as fillers to improve thermal conductivity. A series of form-stable PCMs SA/SEP and SA/SEP/EG were prepare...
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| Veröffentlicht in: | Journal of thermal analysis and calorimetry 2021-03, Vol.143 (5), p.3317-3329 |
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| creator | Hong, Yuxiang Yan, Wentao Du, Juan Li, Wenyu Xu, Tong Ye, Wei-Biao |
| description | To improve leak-proof performance of phase change materials (PCMs), hydrochloric acid-modified sepiolite (SEP) was used to encapsulate stearic acid (SA), and expanded graphite (EG) was employed as fillers to improve thermal conductivity. A series of form-stable PCMs SA/SEP and SA/SEP/EG were prepared by a combination method of direct impregnation and dry pressing with leakage tests being performed. Their crystalline structure, chemical compatibility, microstructure, latent heat, thermal stability and thermal conductivity were characterized by XRD, FT-IR, SEM, DSC, TG and thermal conductivity analysis, respectively. The leakage tests proved that the loaded mass fraction of SA in the SEP/EG could attain to 60%. The DSC experimental results showed that the composite SA60%/SEP/EG (15%) had a relative large melting latent heat of 113.7 J g
−1
. The thermal conductivity analysis demonstrated that the enhanced ratio of thermal conductivity in SA60%/SEP/EG (15%) was about 9 times to that of SA35%/SEP. In addition, the XRD, FT-IR, SEM and TG results indicated that the as-prepared composites were obtained by a physical mixing process with well chemical compatibility and thermal durability. Compared with the previous studies, the shape-stable SA60%/SEP/EG (15%) holds some competitive advantages. |
| doi_str_mv | 10.1007/s10973-020-09299-2 |
| format | Article |
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−1
. The thermal conductivity analysis demonstrated that the enhanced ratio of thermal conductivity in SA60%/SEP/EG (15%) was about 9 times to that of SA35%/SEP. In addition, the XRD, FT-IR, SEM and TG results indicated that the as-prepared composites were obtained by a physical mixing process with well chemical compatibility and thermal durability. Compared with the previous studies, the shape-stable SA60%/SEP/EG (15%) holds some competitive advantages.</description><identifier>ISSN: 1388-6150</identifier><identifier>EISSN: 1588-2926</identifier><identifier>DOI: 10.1007/s10973-020-09299-2</identifier><language>eng</language><publisher>Cham: Springer International Publishing</publisher><subject>Analysis ; Analytical Chemistry ; Chemical compatibility ; Chemical tests and reagents ; Chemistry ; Chemistry and Materials Science ; Control engineering ; Crystals ; Energy storage ; Force and energy ; Heat conductivity ; Heat storage ; Heat transfer ; Hydrochloric acid ; Inorganic Chemistry ; Latent heat ; Leakage ; Measurement Science and Instrumentation ; Phase change materials ; Physical Chemistry ; Polymer Sciences ; Product development ; Saturated fatty acids ; Sepiolite ; Stearic acid ; Structure ; Thermal conductivity ; Thermal energy ; Thermal stability ; X-ray diffraction</subject><ispartof>Journal of thermal analysis and calorimetry, 2021-03, Vol.143 (5), p.3317-3329</ispartof><rights>Akadémiai Kiadó, Budapest, Hungary 2020</rights><rights>COPYRIGHT 2021 Springer</rights><rights>Akadémiai Kiadó, Budapest, Hungary 2020.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c429t-93e1d5f874947e26f30d56a0fc16fe470713c6fb6054ada1bbfb285c5df395f83</citedby><cites>FETCH-LOGICAL-c429t-93e1d5f874947e26f30d56a0fc16fe470713c6fb6054ada1bbfb285c5df395f83</cites><orcidid>0000-0002-6442-4289</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://link.springer.com/content/pdf/10.1007/s10973-020-09299-2$$EPDF$$P50$$Gspringer$$H</linktopdf><linktohtml>$$Uhttps://link.springer.com/10.1007/s10973-020-09299-2$$EHTML$$P50$$Gspringer$$H</linktohtml><link.rule.ids>314,780,784,27924,27925,41488,42557,51319</link.rule.ids></links><search><creatorcontrib>Hong, Yuxiang</creatorcontrib><creatorcontrib>Yan, Wentao</creatorcontrib><creatorcontrib>Du, Juan</creatorcontrib><creatorcontrib>Li, Wenyu</creatorcontrib><creatorcontrib>Xu, Tong</creatorcontrib><creatorcontrib>Ye, Wei-Biao</creatorcontrib><title>Thermal performances of stearic acid/sepiolite composite form-stable phase change materials with improved thermal conductivity for thermal energy storage</title><title>Journal of thermal analysis and calorimetry</title><addtitle>J Therm Anal Calorim</addtitle><description>To improve leak-proof performance of phase change materials (PCMs), hydrochloric acid-modified sepiolite (SEP) was used to encapsulate stearic acid (SA), and expanded graphite (EG) was employed as fillers to improve thermal conductivity. A series of form-stable PCMs SA/SEP and SA/SEP/EG were prepared by a combination method of direct impregnation and dry pressing with leakage tests being performed. Their crystalline structure, chemical compatibility, microstructure, latent heat, thermal stability and thermal conductivity were characterized by XRD, FT-IR, SEM, DSC, TG and thermal conductivity analysis, respectively. The leakage tests proved that the loaded mass fraction of SA in the SEP/EG could attain to 60%. The DSC experimental results showed that the composite SA60%/SEP/EG (15%) had a relative large melting latent heat of 113.7 J g
−1
. The thermal conductivity analysis demonstrated that the enhanced ratio of thermal conductivity in SA60%/SEP/EG (15%) was about 9 times to that of SA35%/SEP. In addition, the XRD, FT-IR, SEM and TG results indicated that the as-prepared composites were obtained by a physical mixing process with well chemical compatibility and thermal durability. Compared with the previous studies, the shape-stable SA60%/SEP/EG (15%) holds some competitive advantages.</description><subject>Analysis</subject><subject>Analytical Chemistry</subject><subject>Chemical compatibility</subject><subject>Chemical tests and reagents</subject><subject>Chemistry</subject><subject>Chemistry and Materials Science</subject><subject>Control engineering</subject><subject>Crystals</subject><subject>Energy storage</subject><subject>Force and energy</subject><subject>Heat conductivity</subject><subject>Heat storage</subject><subject>Heat transfer</subject><subject>Hydrochloric acid</subject><subject>Inorganic Chemistry</subject><subject>Latent heat</subject><subject>Leakage</subject><subject>Measurement Science and Instrumentation</subject><subject>Phase change materials</subject><subject>Physical Chemistry</subject><subject>Polymer Sciences</subject><subject>Product development</subject><subject>Saturated fatty acids</subject><subject>Sepiolite</subject><subject>Stearic acid</subject><subject>Structure</subject><subject>Thermal conductivity</subject><subject>Thermal energy</subject><subject>Thermal stability</subject><subject>X-ray diffraction</subject><issn>1388-6150</issn><issn>1588-2926</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2021</creationdate><recordtype>article</recordtype><recordid>eNp9Uctu1TAQjRBIlMIPsLLEikVaP2InXlYVj0qVKkFZW44zznWVxMH2Lb2fwt8yt6lA3SAvfOQ558x4TlW9Z_SMUdqeZ0Z1K2rKaU0117rmL6oTJruu5pqrl4gFYsUkfV29yfmOUqo1ZSfV79sdpNlOZIXkI6LFQSbRk1zApuCIdWE4z7CGOIUCxMV5jfmIjuw6F9tPQNadzVjb2WUEMtsCKdgpk1-h7EiY1xTvYSDlqZOLy7B3JdyHcji6_C3AAmk8YOeY7Ahvq1ceTeDd031a_fj86fbya3198-Xq8uK6dg3XpdYC2CB91za6aYErL-gglaXeMeWhaWnLhFO-V1Q2drCs733PO-nk4IVGnTitPmy-OObPPeRi7uI-LdjS8AaXpKRiCllnG2u0E5iw-FiSdXgGmAP-CHzA9wslG6GaTgoUfHwmQE6BhzLafc7m6vu351y-cV2KOSfwZk1htulgGDXHfM2Wr8F8zWO-hqNIbKKMZNx7-jf3f1R_APljq8I</recordid><startdate>20210301</startdate><enddate>20210301</enddate><creator>Hong, Yuxiang</creator><creator>Yan, Wentao</creator><creator>Du, Juan</creator><creator>Li, Wenyu</creator><creator>Xu, Tong</creator><creator>Ye, Wei-Biao</creator><general>Springer International Publishing</general><general>Springer</general><general>Springer Nature B.V</general><scope>AAYXX</scope><scope>CITATION</scope><scope>ISR</scope><orcidid>https://orcid.org/0000-0002-6442-4289</orcidid></search><sort><creationdate>20210301</creationdate><title>Thermal performances of stearic acid/sepiolite composite form-stable phase change materials with improved thermal conductivity for thermal energy storage</title><author>Hong, Yuxiang ; Yan, Wentao ; Du, Juan ; Li, Wenyu ; Xu, Tong ; Ye, Wei-Biao</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c429t-93e1d5f874947e26f30d56a0fc16fe470713c6fb6054ada1bbfb285c5df395f83</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2021</creationdate><topic>Analysis</topic><topic>Analytical Chemistry</topic><topic>Chemical compatibility</topic><topic>Chemical tests and reagents</topic><topic>Chemistry</topic><topic>Chemistry and Materials Science</topic><topic>Control engineering</topic><topic>Crystals</topic><topic>Energy storage</topic><topic>Force and energy</topic><topic>Heat conductivity</topic><topic>Heat storage</topic><topic>Heat transfer</topic><topic>Hydrochloric acid</topic><topic>Inorganic Chemistry</topic><topic>Latent heat</topic><topic>Leakage</topic><topic>Measurement Science and Instrumentation</topic><topic>Phase change materials</topic><topic>Physical Chemistry</topic><topic>Polymer Sciences</topic><topic>Product development</topic><topic>Saturated fatty acids</topic><topic>Sepiolite</topic><topic>Stearic acid</topic><topic>Structure</topic><topic>Thermal conductivity</topic><topic>Thermal energy</topic><topic>Thermal stability</topic><topic>X-ray diffraction</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Hong, Yuxiang</creatorcontrib><creatorcontrib>Yan, Wentao</creatorcontrib><creatorcontrib>Du, Juan</creatorcontrib><creatorcontrib>Li, Wenyu</creatorcontrib><creatorcontrib>Xu, Tong</creatorcontrib><creatorcontrib>Ye, Wei-Biao</creatorcontrib><collection>CrossRef</collection><collection>Gale In Context: Science</collection><jtitle>Journal of thermal analysis and calorimetry</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Hong, Yuxiang</au><au>Yan, Wentao</au><au>Du, Juan</au><au>Li, Wenyu</au><au>Xu, Tong</au><au>Ye, Wei-Biao</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Thermal performances of stearic acid/sepiolite composite form-stable phase change materials with improved thermal conductivity for thermal energy storage</atitle><jtitle>Journal of thermal analysis and calorimetry</jtitle><stitle>J Therm Anal Calorim</stitle><date>2021-03-01</date><risdate>2021</risdate><volume>143</volume><issue>5</issue><spage>3317</spage><epage>3329</epage><pages>3317-3329</pages><issn>1388-6150</issn><eissn>1588-2926</eissn><abstract>To improve leak-proof performance of phase change materials (PCMs), hydrochloric acid-modified sepiolite (SEP) was used to encapsulate stearic acid (SA), and expanded graphite (EG) was employed as fillers to improve thermal conductivity. A series of form-stable PCMs SA/SEP and SA/SEP/EG were prepared by a combination method of direct impregnation and dry pressing with leakage tests being performed. Their crystalline structure, chemical compatibility, microstructure, latent heat, thermal stability and thermal conductivity were characterized by XRD, FT-IR, SEM, DSC, TG and thermal conductivity analysis, respectively. The leakage tests proved that the loaded mass fraction of SA in the SEP/EG could attain to 60%. The DSC experimental results showed that the composite SA60%/SEP/EG (15%) had a relative large melting latent heat of 113.7 J g
−1
. The thermal conductivity analysis demonstrated that the enhanced ratio of thermal conductivity in SA60%/SEP/EG (15%) was about 9 times to that of SA35%/SEP. In addition, the XRD, FT-IR, SEM and TG results indicated that the as-prepared composites were obtained by a physical mixing process with well chemical compatibility and thermal durability. Compared with the previous studies, the shape-stable SA60%/SEP/EG (15%) holds some competitive advantages.</abstract><cop>Cham</cop><pub>Springer International Publishing</pub><doi>10.1007/s10973-020-09299-2</doi><tpages>13</tpages><orcidid>https://orcid.org/0000-0002-6442-4289</orcidid></addata></record> |
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| subjects | Analysis Analytical Chemistry Chemical compatibility Chemical tests and reagents Chemistry Chemistry and Materials Science Control engineering Crystals Energy storage Force and energy Heat conductivity Heat storage Heat transfer Hydrochloric acid Inorganic Chemistry Latent heat Leakage Measurement Science and Instrumentation Phase change materials Physical Chemistry Polymer Sciences Product development Saturated fatty acids Sepiolite Stearic acid Structure Thermal conductivity Thermal energy Thermal stability X-ray diffraction |
| title | Thermal performances of stearic acid/sepiolite composite form-stable phase change materials with improved thermal conductivity for thermal energy storage |
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