Encapsulation of Phase Change Materials Using Layer-by-Layer Assembled Polyelectrolytes
Phase change materials absorb the thermal energy when changing their phases (e.g., solid-to-liquid) at constant temperatures to achieve the latent heat storage. The major drawbacks such as limited thermal conductivity and leakage prevent the PCMs from wide application in desired areas. In this work,...
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| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2015-01-01
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| Series: | International Journal of Polymer Science |
| Online Access: | http://dx.doi.org/10.1155/2015/756237 |
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| author | Qiangying Yi Gleb B. Sukhorokov Jin Ma Xiaobo Yang Zhongwei Gu |
| author_facet | Qiangying Yi Gleb B. Sukhorokov Jin Ma Xiaobo Yang Zhongwei Gu |
| author_sort | Qiangying Yi |
| collection | DOAJ |
| description | Phase change materials absorb the thermal energy when changing their phases (e.g., solid-to-liquid) at constant temperatures to achieve the latent heat storage. The major drawbacks such as limited thermal conductivity and leakage prevent the PCMs from wide application in desired areas. In this work, an environmentally friendly and low cost approach, layer-by-layer (LbL) assembly technique, was applied to build up ultrathin shells to encapsulate the PCMs and therefore to regulate their changes in volume when the phase change occurs. Generally, the oppositely charged strong polyelectrolytes Poly(diallyldimethylammonium chloride) (PDADMAC) and Poly(4-styrenesulfonic acid) sodium salt (PSS) were employed to fabricate multilayer shells on emulsified octadecane droplets using either bovine serum albumin (BSA) or sodium dodecyl sulfate (SDS) as surfactant. Specifically, using BSA as the surfactant, polyelectrolyte encapsulated octadecane spheres in size of ∼500 nm were obtained, with good shell integrity, high octadecane content (91.3% by mass), and good thermal stability after cycles of thermal treatments. |
| format | Article |
| id | doaj-art-b70e9bff258d4ba7971fc624c8734d13 |
| institution | Kabale University |
| issn | 1687-9422 1687-9430 |
| language | English |
| publishDate | 2015-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | International Journal of Polymer Science |
| spelling | doaj-art-b70e9bff258d4ba7971fc624c8734d132025-08-20T03:39:28ZengWileyInternational Journal of Polymer Science1687-94221687-94302015-01-01201510.1155/2015/756237756237Encapsulation of Phase Change Materials Using Layer-by-Layer Assembled PolyelectrolytesQiangying Yi0Gleb B. Sukhorokov1Jin Ma2Xiaobo Yang3Zhongwei Gu4National Engineering Research Center for Biomaterials, Sichuan University, 29 Wangjiang Road, Chengdu 610064, ChinaSchool of Engineering and Materials Science, Queen Mary University of London, Mile End Road, London E1 4NS, UKNational Engineering Research Center for Biomaterials, Sichuan University, 29 Wangjiang Road, Chengdu 610064, ChinaSchool of Engineering and Materials Science, Queen Mary University of London, Mile End Road, London E1 4NS, UKNational Engineering Research Center for Biomaterials, Sichuan University, 29 Wangjiang Road, Chengdu 610064, ChinaPhase change materials absorb the thermal energy when changing their phases (e.g., solid-to-liquid) at constant temperatures to achieve the latent heat storage. The major drawbacks such as limited thermal conductivity and leakage prevent the PCMs from wide application in desired areas. In this work, an environmentally friendly and low cost approach, layer-by-layer (LbL) assembly technique, was applied to build up ultrathin shells to encapsulate the PCMs and therefore to regulate their changes in volume when the phase change occurs. Generally, the oppositely charged strong polyelectrolytes Poly(diallyldimethylammonium chloride) (PDADMAC) and Poly(4-styrenesulfonic acid) sodium salt (PSS) were employed to fabricate multilayer shells on emulsified octadecane droplets using either bovine serum albumin (BSA) or sodium dodecyl sulfate (SDS) as surfactant. Specifically, using BSA as the surfactant, polyelectrolyte encapsulated octadecane spheres in size of ∼500 nm were obtained, with good shell integrity, high octadecane content (91.3% by mass), and good thermal stability after cycles of thermal treatments.http://dx.doi.org/10.1155/2015/756237 |
| spellingShingle | Qiangying Yi Gleb B. Sukhorokov Jin Ma Xiaobo Yang Zhongwei Gu Encapsulation of Phase Change Materials Using Layer-by-Layer Assembled Polyelectrolytes International Journal of Polymer Science |
| title | Encapsulation of Phase Change Materials Using Layer-by-Layer Assembled Polyelectrolytes |
| title_full | Encapsulation of Phase Change Materials Using Layer-by-Layer Assembled Polyelectrolytes |
| title_fullStr | Encapsulation of Phase Change Materials Using Layer-by-Layer Assembled Polyelectrolytes |
| title_full_unstemmed | Encapsulation of Phase Change Materials Using Layer-by-Layer Assembled Polyelectrolytes |
| title_short | Encapsulation of Phase Change Materials Using Layer-by-Layer Assembled Polyelectrolytes |
| title_sort | encapsulation of phase change materials using layer by layer assembled polyelectrolytes |
| url | http://dx.doi.org/10.1155/2015/756237 |
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