Preparation and Characteristics of Microencapsulated Lauric Acid as Composite Thermal Energy Storage Materials
A novel microencapsulated phase change material was prepared by sol-gel method using lauric acid (LA) as core material and titanium dioxide (TiO2) as shell material. The composites were characterized by field emission scanning electron microscope (FE-SEM), Fourier transformation infrared spectromete...
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| Format: | Article |
| Language: | English |
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Kaunas University of Technology
2019-11-01
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| Series: | Medžiagotyra |
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| Online Access: | http://matsc.ktu.lt/index.php/MatSc/article/view/21303 |
| _version_ | 1819265728199524352 |
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| author | Yanghua CHEN Yuan LIU Zhaohe WANG |
| author_facet | Yanghua CHEN Yuan LIU Zhaohe WANG |
| author_sort | Yanghua CHEN |
| collection | DOAJ |
| description | A novel microencapsulated phase change material was prepared by sol-gel method using lauric acid (LA) as core material and titanium dioxide (TiO2) as shell material. The composites were characterized by field emission scanning electron microscope (FE-SEM), Fourier transformation infrared spectrometer (FT-IR), differential scanning calorimeter (DSC) and thermogravimetric analyzer (TGA). The results of the FE-SEM and FT-IR indicated that LA was well coated in the shell of TiO2 and no chemical reaction occurred between them. The results of the DSC denoted that the composites with 43.5 % encapsulation ratio of the LA melted at 44.39 ℃ with the melting enthalpy of 67.54 J/g and solidified at 43.64 ℃ with the solidification enthalpy of 65.17 J/g. The results of the TGA signified that the thermal stability and fire resistance of the microcapsules were greatly enhanced under the protection barrier of TiO2. The thermal decomposition of the microencapsulated LA with TiO2 shell hardly occurred under 200 ℃. That is to say, the composites possess good thermal stability in the operating temperature range. In conclusion, the prepared microencapsulated composites can be incorporated into solar energy storage like solar air heaters and into electronic devices as heat sinks. |
| first_indexed | 2024-12-23T20:49:59Z |
| format | Article |
| id | doaj.art-6b30c6f242424e248624ac404b990378 |
| institution | Directory Open Access Journal |
| issn | 1392-1320 2029-7289 |
| language | English |
| last_indexed | 2024-12-23T20:49:59Z |
| publishDate | 2019-11-01 |
| publisher | Kaunas University of Technology |
| record_format | Article |
| series | Medžiagotyra |
| spelling | doaj.art-6b30c6f242424e248624ac404b9903782022-12-21T17:31:42ZengKaunas University of TechnologyMedžiagotyra1392-13202029-72892019-11-01261889310.5755/j01.ms.26.1.2130321303Preparation and Characteristics of Microencapsulated Lauric Acid as Composite Thermal Energy Storage MaterialsYanghua CHENYuan LIUZhaohe WANGA novel microencapsulated phase change material was prepared by sol-gel method using lauric acid (LA) as core material and titanium dioxide (TiO2) as shell material. The composites were characterized by field emission scanning electron microscope (FE-SEM), Fourier transformation infrared spectrometer (FT-IR), differential scanning calorimeter (DSC) and thermogravimetric analyzer (TGA). The results of the FE-SEM and FT-IR indicated that LA was well coated in the shell of TiO2 and no chemical reaction occurred between them. The results of the DSC denoted that the composites with 43.5 % encapsulation ratio of the LA melted at 44.39 ℃ with the melting enthalpy of 67.54 J/g and solidified at 43.64 ℃ with the solidification enthalpy of 65.17 J/g. The results of the TGA signified that the thermal stability and fire resistance of the microcapsules were greatly enhanced under the protection barrier of TiO2. The thermal decomposition of the microencapsulated LA with TiO2 shell hardly occurred under 200 ℃. That is to say, the composites possess good thermal stability in the operating temperature range. In conclusion, the prepared microencapsulated composites can be incorporated into solar energy storage like solar air heaters and into electronic devices as heat sinks.http://matsc.ktu.lt/index.php/MatSc/article/view/21303microencapsulated compositeslauric acidtitanium dioxide shellsol-gelthermal properties |
| spellingShingle | Yanghua CHEN Yuan LIU Zhaohe WANG Preparation and Characteristics of Microencapsulated Lauric Acid as Composite Thermal Energy Storage Materials Medžiagotyra microencapsulated composites lauric acid titanium dioxide shell sol-gel thermal properties |
| title | Preparation and Characteristics of Microencapsulated Lauric Acid as Composite Thermal Energy Storage Materials |
| title_full | Preparation and Characteristics of Microencapsulated Lauric Acid as Composite Thermal Energy Storage Materials |
| title_fullStr | Preparation and Characteristics of Microencapsulated Lauric Acid as Composite Thermal Energy Storage Materials |
| title_full_unstemmed | Preparation and Characteristics of Microencapsulated Lauric Acid as Composite Thermal Energy Storage Materials |
| title_short | Preparation and Characteristics of Microencapsulated Lauric Acid as Composite Thermal Energy Storage Materials |
| title_sort | preparation and characteristics of microencapsulated lauric acid as composite thermal energy storage materials |
| topic | microencapsulated composites lauric acid titanium dioxide shell sol-gel thermal properties |
| url | http://matsc.ktu.lt/index.php/MatSc/article/view/21303 |
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