Novel composite phase change material of high heat storage and photothermal conversion ability

Zhou, Bo; Zhen, Liping; Yang, Yongjie; Ma, Wenli; Fu, Yilin; Duan, Xinping; Wang, Huazhi

doi:10.1016/j.est.2022.104101

Cited by 23 publications

(2 citation statements)

References 37 publications

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“…Common PCMs of the fatty acid group include stearic acid (SA), lauric acid (LA), decanoic acid, myristic acid (MA), and palmitic acid (PA). Fatty acids have the characteristics of high latent heat, good thermal stability, no supercooling, and low costs [ 54 , 55 ].…”

Section: Phase Change Materials (Pcms)mentioning

confidence: 99%

A Review of Composite Phase Change Materials Based on Biomass Materials

et al. 2022

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Phase change materials (PCMs) can store/release heat from/to the external environment through their own phase change, which can reduce the imbalance between energy supply and demand and improve the effective utilization of energy. Biomass materials are abundant in reserves, from a wide range of sources, and most of them have a natural pore structure, which is a good carrier of phase change materials. Biomass-based composite phase change materials and their derived ones are superior to traditional phase change materials due to their ability to overcome the leakage of phase change materials during solid–liquid change. This paper reviews the basic properties, phase change characteristics, and binding methods of several phase change materials (polyethylene glycols, paraffins, and fatty acids) that are commonly compounded with biomass materials. On this basis, it summarizes the preparation methods of biomass-based composite phase change materials, including porous adsorption, microencapsulation based on biomass shell, and grafting by copolymerization and also analyzes the characteristics of each method. Finally, the paper introduces the latest research progress of multifunctional biomass-based composite phase change materials capable of energy storage and outlines the challenges and future research and development priorities in this field.

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Section: Phase Change Materials (Pcms)mentioning

confidence: 99%

A Review of Composite Phase Change Materials Based on Biomass Materials

et al. 2022

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“…Encapsulating PCMs inside three-dimensional networks of porous materials, such as expanded graphite, − carbon foam, − mesoporous silica, − aerogel, − and metal–organic framework, , has been demonstrated to be an accessible and attractive strategy to fabricate form-stable PCM composites. Among various porous materials, natural wood is considered the most promising candidate for a supporting material for PCM encapsulation due to its favorable characteristics, such as a distinctive anisotropic porous structure, admirable mechanical strength, excellent renewability and recyclability, and low cost .…”

Section: Introductionmentioning

confidence: 99%

Flame-Retardant and Form-Stable Delignified Wood-Based Phase Change Composites with Superior Energy Storage Density and Reversible Thermochromic Properties for Visual Thermoregulation

Wang

Yue

et al. 2023

ACS Sustainable Chem. Eng.

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The development of form-stable phase change materials (PCMs) with flame retardancy and the visual thermal storage process is crucial for their application in building energy conservation. Herein, an active phosphorus/ammonium-containing non-formaldehyde flame retardant (APA) was synthesized based on the natural compound phytic acid. Then, wood-based form-stable PCM composites (PTPCMs) with high energy storage density, excellent flame retardancy, and real-time and visual reversible thermochromic properties were successfully fabricated by impregnating the thermochromic compound into the APA-grafted delignified wood. The delignified wood well supports the solid–liquid PCMs and avoids their liquid leakage during phase transition due to the high surface tension and strong capillary effect. The differential scanning calorimetry (DSC) results showed that the PTPCMs possessed high thermal energy storage density (165.3–198.6 J/g) and reliable thermal stability. With the concentration of the flame-retardant APA increased, the peak heat release rate (pHRR) and total heat release (THR) of PTPCMs reduced noticeably, demonstrating the enhanced flame retardancy of PTPCMs. Moreover, PTPCM composites had good thermoregulation properties and the visualization of the phase transition process was made possible by the reversible thermochromic properties. In summary, the novel PTPCMs show tremendous application potential for efficient building energy conservation.

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