Assessing the direct interaction of asphalt binder with stearic acid/palmitic acid binary eutectic phase change material

2022 ◽  
Vol 320 ◽  
pp. 126251
Author(s):  
Jiasheng Dai ◽  
Feng Ma ◽  
Zhen Fu ◽  
Chen Li ◽  
Di Wu ◽  
...  
Keyword(s):  
Stearic Acid ◽  
Palmitic Acid ◽  
Phase Change ◽  
Phase Change Material ◽  
Asphalt Binder ◽  
Direct Interaction ◽  
Eutectic Phase ◽  
Binary Eutectic ◽  
Change Material

scholarly journals Palmitic Acid-Stearic Acid/Expanded Graphite as Form-Stable Composite Phase-Change Material for Latent Heat Thermal Energy Storage

2020 ◽  
Vol 2020 ◽  
pp. 1-9 ◽  
Author(s):  
Dongyi Zhou ◽  
Yuhong Zhou ◽  
Jiawei Yuan ◽  
Yicai Liu
Keyword(s):  
Stearic Acid ◽  
Palmitic Acid ◽  
Phase Change ◽  
Latent Heat ◽  
Thermal Energy ◽  
Eutectic Mixture ◽  
Expanded Graphite ◽  
The Novel ◽  
Binary Eutectic ◽  
Change Material

The aim of this study is to prepare a novel form-stable phase-change material (PCM), palmitic acid-stearic acid/expanded graphite (PA-SA/EG) PCM, for latent heat thermal energy. A eutectic mixture of palmitic acid and stearic acid is incorporated with expanded graphite (EG). The thermal properties and microstructure of the novel PCMs were studied. The optimal mass ratio of PA-SA in composite PCM is approximately 92.8%. DSC results showed that the novel PCMs had suitable phase-change temperature (Tm: 55.18°C, Tf: 54.91°C) and high latent heat (Hm: 176.2 J/g, Hf: 175.6 J/g), and good thermal performance was maintained after 1500 times thermal cycling. The PA-SA binary eutectic mixture was uniformly distributed in the porous structure of EG, and the PCM did not leak even in molten state. EG had little effect on the thermal properties of the PA-SA binary eutectic mixture and remarkably improved the thermal conductivity of the composite PCMs. TGA test indicated that the composite PCM had nice thermostability in the range of operating temperature. Based on all these results, the PA-SA/EG composite PCM is a promising material for low-temperature thermal energy storage applications.

A Novel Solid-Solid Phase Change Material Based on Poly(styrene-co-acrylonitrile) Grafting With Palmitic Acid Copolymers

2015 ◽  
Vol 52 (8) ◽  
pp. 617-624 ◽  
Author(s):  
Siyang Mu ◽  
Jing Guo ◽  
Chunfang Yu ◽  
Yuanfa Liu ◽  
Yumei Gong ◽  
...  
Keyword(s):  
Palmitic Acid ◽  
Phase Change ◽  
Phase Change Material ◽  
Solid Phase ◽  
Change Material
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