Thermal Performance Study of Composite Phase Change Material with Polyacrylicand Conformal Coating
The composite PCM was prepared by blending polymethyl methacrylate (PMMA) and myristic acid (MA) in different weight percentages. The MA and PMMA were selected as PCM and supporting material, respectively. As liquid MA may leak out during the phase transition, this study proposes the use of two coat...
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| Language: | English |
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MDPI AG
2017-07-01
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| Series: | Materials |
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| Online Access: | https://www.mdpi.com/1996-1944/10/8/873 |
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| author | Shin Yiing Kee Yamuna Munusamy Kok Seng Ong Hendrik Simon Cornelis Metselaar Swee Yong Chee Koon Chun Lai |
| author_facet | Shin Yiing Kee Yamuna Munusamy Kok Seng Ong Hendrik Simon Cornelis Metselaar Swee Yong Chee Koon Chun Lai |
| author_sort | Shin Yiing Kee |
| collection | DOAJ |
| description | The composite PCM was prepared by blending polymethyl methacrylate (PMMA) and myristic acid (MA) in different weight percentages. The MA and PMMA were selected as PCM and supporting material, respectively. As liquid MA may leak out during the phase transition, this study proposes the use of two coatings, namely a polyacrylic coating and a conformal coating to overcome the leakage problem. Both coatings were studied in terms of the leakage test, chemical compatibility, thermal stability, morphology, and reliability. No leakage was found in the PCMs with coatings compared to those without under the same proportions of MA/PMMA, thus justifying the use of coatings in the present study. The chemically compatibility was confirmed by FTIR spectra: the functional groups of PCMs were in accordance with those of coatings. DSC showed that the coatings did not significantly change the melting and freezing temperatures, however, they improved the thermal stability of composite PCMs as seen in TGA analysis. Furthermore, the composite PCMs demonstrated good thermal reliability after 1000 times thermal cycling. The latent heat of melting reduced by only 0.16% and 1.02% for the PCMs coated with conformal coating and polyacrylic coating, respectively. Therefore, the proposed coatings can be considered in preparing fatty acid/PMMA blends attributed to the good stability, compatibility and leakage prevention. |
| first_indexed | 2024-04-13T09:48:51Z |
| format | Article |
| id | doaj.art-d1d8073fa865405ea0adc102cb25ed81 |
| institution | Directory Open Access Journal |
| issn | 1996-1944 |
| language | English |
| last_indexed | 2024-04-13T09:48:51Z |
| publishDate | 2017-07-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Materials |
| spelling | doaj.art-d1d8073fa865405ea0adc102cb25ed812022-12-22T02:51:38ZengMDPI AGMaterials1996-19442017-07-0110887310.3390/ma10080873ma10080873Thermal Performance Study of Composite Phase Change Material with Polyacrylicand Conformal CoatingShin Yiing Kee0Yamuna Munusamy1Kok Seng Ong2Hendrik Simon Cornelis Metselaar3Swee Yong Chee4Koon Chun Lai5Faculty of Engineering and Green Technology, Universiti Tunku Abdul Rahman, Kampar 31900, MalaysiaFaculty of Engineering and Green Technology, Universiti Tunku Abdul Rahman, Kampar 31900, MalaysiaFaculty of Engineering and Green Technology, Universiti Tunku Abdul Rahman, Kampar 31900, MalaysiaDepartment of Mechanical Engineering and Advanced Material Research Center, University of Malaya, Kuala Lumpur 50603, MalaysiaFaculty of Science, Universiti Tunku Abdul Rahman, Kampar 31900, MalaysiaFaculty of Engineering and Green Technology, Universiti Tunku Abdul Rahman, Kampar 31900, MalaysiaThe composite PCM was prepared by blending polymethyl methacrylate (PMMA) and myristic acid (MA) in different weight percentages. The MA and PMMA were selected as PCM and supporting material, respectively. As liquid MA may leak out during the phase transition, this study proposes the use of two coatings, namely a polyacrylic coating and a conformal coating to overcome the leakage problem. Both coatings were studied in terms of the leakage test, chemical compatibility, thermal stability, morphology, and reliability. No leakage was found in the PCMs with coatings compared to those without under the same proportions of MA/PMMA, thus justifying the use of coatings in the present study. The chemically compatibility was confirmed by FTIR spectra: the functional groups of PCMs were in accordance with those of coatings. DSC showed that the coatings did not significantly change the melting and freezing temperatures, however, they improved the thermal stability of composite PCMs as seen in TGA analysis. Furthermore, the composite PCMs demonstrated good thermal reliability after 1000 times thermal cycling. The latent heat of melting reduced by only 0.16% and 1.02% for the PCMs coated with conformal coating and polyacrylic coating, respectively. Therefore, the proposed coatings can be considered in preparing fatty acid/PMMA blends attributed to the good stability, compatibility and leakage prevention.https://www.mdpi.com/1996-1944/10/8/873phase change materialPMMAmyristic acidpolyacrylic coatingconformal coating |
| spellingShingle | Shin Yiing Kee Yamuna Munusamy Kok Seng Ong Hendrik Simon Cornelis Metselaar Swee Yong Chee Koon Chun Lai Thermal Performance Study of Composite Phase Change Material with Polyacrylicand Conformal Coating Materials phase change material PMMA myristic acid polyacrylic coating conformal coating |
| title | Thermal Performance Study of Composite Phase Change Material with Polyacrylicand Conformal Coating |
| title_full | Thermal Performance Study of Composite Phase Change Material with Polyacrylicand Conformal Coating |
| title_fullStr | Thermal Performance Study of Composite Phase Change Material with Polyacrylicand Conformal Coating |
| title_full_unstemmed | Thermal Performance Study of Composite Phase Change Material with Polyacrylicand Conformal Coating |
| title_short | Thermal Performance Study of Composite Phase Change Material with Polyacrylicand Conformal Coating |
| title_sort | thermal performance study of composite phase change material with polyacrylicand conformal coating |
| topic | phase change material PMMA myristic acid polyacrylic coating conformal coating |
| url | https://www.mdpi.com/1996-1944/10/8/873 |
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