Preparation, characterization and performance of paraffin/sepiolite composites as novel shape-stabilized phase change materials for thermal energy storage

Luo, Yue; Xiong, Su‐Ya; Huang, Jintao; Zhang, Feng; Li, Chongchong; Min, Yonggang; Peng, Ruitao; Liu, Yidong

doi:10.1016/j.solmat.2021.111300

Cited by 89 publications

(16 citation statements)

References 49 publications

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“…The PPG films exhibited exceptional η values; specifically, the η value of PPG8 reached 98.7%, which was higher than that reported in many previous works (Figure g). − In general, larger v and η values represent a better energy storage ability. Furthermore, the PPG8 film maintained the original DSC curve and approximately the same enthalpy after 100 and 200 thermal cycles under the program of 10–90–10 °C (Figures h and i).…”

Section: Resultsmentioning

confidence: 64%

Bioinspired Micro/Nanostructured Polyethylene/Poly(Ethylene Oxide)/Graphene Films with Robust Superhydrophobicity and Excellent Antireflectivity for Solar–Thermal Power Generation, Thermal Management, and Afterheat Utilization

et al. 2022

ACS Nano

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The rational utilization and circulation of multiple energy sources is an effective way to address the crises of energy shortages and environmental pollution. Herein, microextrusion compression molding, an industrialized polymer molding technology that combines melt blending and compression molding, is proposed for the mass production of a bioinspired micro/nanostructured polyethylene/poly(ethylene oxide)/graphene (MN-PPG) film. The MN-PPG film exhibits robust shape stability, high storage energy density, and excellent thermal management capability owing to the cocontinuous network formed by poly(ethylene oxide) and the polyethylene matrix. The MN-PPG film has sufficient photothermal property due to the uniformly dispersed graphene nanosheets and the bioinspired surface micro/nanostructures. Interestingly, the MN-PPG film surface exhibits durable superhydrophobicity, acid/alkali resistance, and active deicing performance. Further, a multifunctional energy harvesting and circulation system was established by integrating the MN-PPG film, an LED chip, and a thermoelectric module. The hybrid system produced an open-circuit voltage of 315.4 mV and power output of 2.5 W m–2 under 3 sun irradiation. Furthermore, the afterheat generated by the LED chips at night can be converted into electricity through thermoelectric conversion. The proposed method enables the large-scale fabrication of multifunctional phase change composites for energy harvesting in harsh environments.

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Section: Resultsmentioning

confidence: 64%

Bioinspired Micro/Nanostructured Polyethylene/Poly(Ethylene Oxide)/Graphene Films with Robust Superhydrophobicity and Excellent Antireflectivity for Solar–Thermal Power Generation, Thermal Management, and Afterheat Utilization

et al. 2022

ACS Nano

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“…The inferred starting temperatures of the CPCM melting stage ( T o m ) and the solidification stage ( T o f ) are 38.07 and 31.04 °C, while the inferred starting temperatures of the CPCF-M8 melting stage ( T o m ) and solidification stage ( T o f ) are 36.98 and 30.00 °C, indicating the MgO@PS fibers do not affect the preregulated phase transition process. Figure b compares the thermophysical properties of the phase change fabrics in this work with PCMs in other reported work. − The developed CPCF-M8 has obvious competitive advantages: it has the proper phase change temperature and comparable latent heat, which ensure the practical application for daily thermoregulation. The thermal conductivity of CPCF-MgO@PS fabrics is much larger than the original CPCM, and it increases with the increased MgO@PS fiber loading, Figure c.…”

Section: Results and Discussionmentioning

confidence: 85%

Robust Smart Fabrics Composed of MgO Nanostructures Encapsulated in Hollow Polystyrene Fibers for Efficient Thermoregulation

Zhang

Dong

et al. 2022

ACS Appl. Nano Mater.

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Functionalized smart fabrics based on phase change materials (PCMs) are potential candidates for adaptive temperature regulation. In this work, composite PCM (CPCM) was first designed with optimized thermophysical properties and antileakage performance. Magnesium oxide (MgO) whiskers were used as the thermal filler to enhance the heat conduction of the CPCM. To improve the compatibility between the filler and the matrix, the whiskers were encapsulated by polystyrene (PS) hollow fibers, forming nanostructured MgO@PS fibers, accompanied by reduced interfacial thermal resistance (ITR). The composite phase change fabric (CPCF) with uniformly distributed internal composition was prepared by the vacuum impregnation method. Owing to the optimized CPCM matrix and specifically designed MgO@PS nanostructure, the final developed fabric (CPCF-M8) showed favorable phase change properties, good stability and mechanical properties, and excellent thermal conductivity of 1.34 W/mK (a 434% improvement compared to the original CPCM). The efficient thermoregulation capability of the CPCF-M8 was further confirmed by performing the practical human thermal management tests with a maximum temperature adjustment of 2.3 °C. In addition, the outdoor temperature adaption tests revealed that the CPCF-M8 was able to provide self-cooling and self-heating, resulting in a maximum 4.2 °C temperature adjustment.

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“…In addition, the latent heat performance of the LS/EP CPCM can be effectively evaluated by four indices: effective adsorption rate ( R ), effective heat storage and release percentage ( E ), relative heat storage efficiency ( μ ), and crystallinity ( F ). The calculation method is shown in eqn (1)–(4) , 33,34 and the calculation results are shown in Table 2 . where H m,CPCM and H f,CPCM refer to the latent heat of melting and freezing of LS/EP, respectively; H m,PCM and H f,PCM refer to the latent heat of melting and freezing of L–S eutectics, respectively; ω refers to the optimal mass fraction of L–S.…”

Section: Resultsmentioning

confidence: 99%

Section: Phase Change Properties Analysismentioning

confidence: 99%

Preparation and characterization of lauric acid–stearic acid/expanded perlite as a composite phase change material

et al. 2022

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Preparation, characterization and performance of paraffin/sepiolite composites as novel shape-stabilized phase change materials for thermal energy storage

Cited by 89 publications

References 49 publications

Bioinspired Micro/Nanostructured Polyethylene/Poly(Ethylene Oxide)/Graphene Films with Robust Superhydrophobicity and Excellent Antireflectivity for Solar–Thermal Power Generation, Thermal Management, and Afterheat Utilization

Bioinspired Micro/Nanostructured Polyethylene/Poly(Ethylene Oxide)/Graphene Films with Robust Superhydrophobicity and Excellent Antireflectivity for Solar–Thermal Power Generation, Thermal Management, and Afterheat Utilization

Robust Smart Fabrics Composed of MgO Nanostructures Encapsulated in Hollow Polystyrene Fibers for Efficient Thermoregulation

Preparation and characterization of lauric acid–stearic acid/expanded perlite as a composite phase change material

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