Shape Stability of Polyethylene Glycol/Acetylene Black Phase Change Composites for Latent Heat Storage
Sufficient shape stability is essential for a high-performance phase change material (PCM). Although significant advances have been made to develop form-stable composites, technical development in the field of polymer-based PCMs is currently limited by an incomplete understanding of the shape stabil...
Saved in:
| Main Authors: | , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Wiley
2018-01-01
|
| Series: | Advances in Materials Science and Engineering |
| Online Access: | http://dx.doi.org/10.1155/2018/3954163 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1850211840883163136 |
|---|---|
| author | Jingjing Zhang Hairong Li Junyang Tu Ruonan Shi Zhiping Luo Chuanxi Xiong Ming Jiang |
| author_facet | Jingjing Zhang Hairong Li Junyang Tu Ruonan Shi Zhiping Luo Chuanxi Xiong Ming Jiang |
| author_sort | Jingjing Zhang |
| collection | DOAJ |
| description | Sufficient shape stability is essential for a high-performance phase change material (PCM). Although significant advances have been made to develop form-stable composites, technical development in the field of polymer-based PCMs is currently limited by an incomplete understanding of the shape stability. Form-stable polyethylene glycol/acetylene black (PEG/AB) PCMs containing PEGs with different average molecular weights have been obtained by melt mixing to investigate the shape stability of the PEG/AB composites. It was found that the phase change behaviors of the PEG/AB composites were not only attributed to the interactions between the AB and PEG, but also to the intermolecular interactions of the PEG chains, depending on the varying molecular weights of the PEGs. Physically crosslinked structure with temporary junctions was formed through hydrogen bonding, capillary, surface tension forces, intermolecular friction, and macromolecular entanglement, which contributed to the constrained chain motion and thus the solid-solid phase change behavior of the PEG/AB composites. The physically crosslinked structure was more stable with longer length of the PEG molecular chains, resulting in higher critical impregnated contents of the PEG into the AB and thus improved latent heat. |
| format | Article |
| id | doaj-art-8fc16df4a3b6482ea2d1f29d8b05b995 |
| institution | OA Journals |
| issn | 1687-8434 1687-8442 |
| language | English |
| publishDate | 2018-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Materials Science and Engineering |
| spelling | doaj-art-8fc16df4a3b6482ea2d1f29d8b05b9952025-08-20T02:09:28ZengWileyAdvances in Materials Science and Engineering1687-84341687-84422018-01-01201810.1155/2018/39541633954163Shape Stability of Polyethylene Glycol/Acetylene Black Phase Change Composites for Latent Heat StorageJingjing Zhang0Hairong Li1Junyang Tu2Ruonan Shi3Zhiping Luo4Chuanxi Xiong5Ming Jiang6School of Materials Science and Engineering, State Key Lab for New Textile Materials and Advanced Processing Technology, Wuhan Textile University, Wuhan 430200, ChinaMechanical Metrology Division, Hubei Institute of Measurement and Testing Technology, Wuhan 430223, ChinaSchool of Materials Science and Engineering, State Key Lab for New Textile Materials and Advanced Processing Technology, Wuhan Textile University, Wuhan 430200, ChinaSchool of Materials Science and Engineering, State Key Lab for New Textile Materials and Advanced Processing Technology, Wuhan Textile University, Wuhan 430200, ChinaSchool of Materials Science and Engineering, State Key Lab for New Textile Materials and Advanced Processing Technology, Wuhan Textile University, Wuhan 430200, ChinaSchool of Materials Science and Engineering, State Key Lab for New Textile Materials and Advanced Processing Technology, Wuhan Textile University, Wuhan 430200, ChinaSchool of Materials Science and Engineering, State Key Lab for New Textile Materials and Advanced Processing Technology, Wuhan Textile University, Wuhan 430200, ChinaSufficient shape stability is essential for a high-performance phase change material (PCM). Although significant advances have been made to develop form-stable composites, technical development in the field of polymer-based PCMs is currently limited by an incomplete understanding of the shape stability. Form-stable polyethylene glycol/acetylene black (PEG/AB) PCMs containing PEGs with different average molecular weights have been obtained by melt mixing to investigate the shape stability of the PEG/AB composites. It was found that the phase change behaviors of the PEG/AB composites were not only attributed to the interactions between the AB and PEG, but also to the intermolecular interactions of the PEG chains, depending on the varying molecular weights of the PEGs. Physically crosslinked structure with temporary junctions was formed through hydrogen bonding, capillary, surface tension forces, intermolecular friction, and macromolecular entanglement, which contributed to the constrained chain motion and thus the solid-solid phase change behavior of the PEG/AB composites. The physically crosslinked structure was more stable with longer length of the PEG molecular chains, resulting in higher critical impregnated contents of the PEG into the AB and thus improved latent heat.http://dx.doi.org/10.1155/2018/3954163 |
| spellingShingle | Jingjing Zhang Hairong Li Junyang Tu Ruonan Shi Zhiping Luo Chuanxi Xiong Ming Jiang Shape Stability of Polyethylene Glycol/Acetylene Black Phase Change Composites for Latent Heat Storage Advances in Materials Science and Engineering |
| title | Shape Stability of Polyethylene Glycol/Acetylene Black Phase Change Composites for Latent Heat Storage |
| title_full | Shape Stability of Polyethylene Glycol/Acetylene Black Phase Change Composites for Latent Heat Storage |
| title_fullStr | Shape Stability of Polyethylene Glycol/Acetylene Black Phase Change Composites for Latent Heat Storage |
| title_full_unstemmed | Shape Stability of Polyethylene Glycol/Acetylene Black Phase Change Composites for Latent Heat Storage |
| title_short | Shape Stability of Polyethylene Glycol/Acetylene Black Phase Change Composites for Latent Heat Storage |
| title_sort | shape stability of polyethylene glycol acetylene black phase change composites for latent heat storage |
| url | http://dx.doi.org/10.1155/2018/3954163 |
| work_keys_str_mv | AT jingjingzhang shapestabilityofpolyethyleneglycolacetyleneblackphasechangecompositesforlatentheatstorage AT hairongli shapestabilityofpolyethyleneglycolacetyleneblackphasechangecompositesforlatentheatstorage AT junyangtu shapestabilityofpolyethyleneglycolacetyleneblackphasechangecompositesforlatentheatstorage AT ruonanshi shapestabilityofpolyethyleneglycolacetyleneblackphasechangecompositesforlatentheatstorage AT zhipingluo shapestabilityofpolyethyleneglycolacetyleneblackphasechangecompositesforlatentheatstorage AT chuanxixiong shapestabilityofpolyethyleneglycolacetyleneblackphasechangecompositesforlatentheatstorage AT mingjiang shapestabilityofpolyethyleneglycolacetyleneblackphasechangecompositesforlatentheatstorage |