Flexible polyethylene glycol/polyvinylpyrrolidone composite phase change fibres: Preparation, characterization, and thermal conductivity enhancement

Zhang, Wuri; Zhang, Xiaoguang; Xu, Yingming; Xu, Yunfei; Qiao, Jiaxin; Shi, Tengteng; Huang, Zhaohui; Liu, Yangai; Fang, Minghao; Min, Xin; Wu, Xiaowen

doi:10.1016/j.polymer.2020.123258

Cited by 37 publications

(11 citation statements)

References 23 publications

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“…Professor Huang Zhaohui’s research group at China University of Geosciences (Beijing) has conducted long-term fruitful research in centrifugal spinning to prepare flexible composite PCMs. ,− In one study, PVP/PEG flexible composite PCMs fibers were prepared, which exhibited good thermal properties and preserved fibrous morphology well. PAN/PEG flexible composite PCMs fibers, with PEG as the PCMs and PAN as the supporting material, were fabricated by centrifugal spinning.…”

Section: Synthesis Strategies For Flexible Composite Pcmsmentioning

confidence: 99%

“…Therefore, the relationship between heat storage capacity and the mechanical properties of flexible composite PCMs needs to be explored to determine its application scenario. Numerous approaches have been employed to develop flexible composite PCMs (Table ), and their preparation processes mainly include the physical adsorption of porous materials and spinning. ,,− However, systematic reviews summarizing these methods are still lacking in the literature.…”

Section: Introductionmentioning

confidence: 99%

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Minireview on Design of Flexible Composite Phase Change Materials to Various Energy Applications: Progresses and Perspectives

et al. 2023

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With the continuous expansion of the research and development and application fields of phase change materials (PCMs), more and more attention has been paid to shape-tunable flexible composite PCMs, which have become a research hotspot in recent years. Flexible composite PCMs can be attached strongly to objects under a certain degree of deformation, thereby giving them great potential in smart applications. This paper reviews the design and fabrication strategies of flexible composite PCMs. The applications of flexible composite PCMs in various fields, such as temperature control of electrical equipment, the textile industry, and multifunctional applications, are introduced in detail. Finally, the challenges, gaps, and perspectives are put forward and discussed. This insightful review aims to provide an in-depth understanding and constructive guidance on flexible composite PCMs.

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Section: Synthesis Strategies For Flexible Composite Pcmsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Minireview on Design of Flexible Composite Phase Change Materials to Various Energy Applications: Progresses and Perspectives

et al. 2023

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“…K at ~11.6 vol% GNP. Zhang et al [ 13 ] reported a new flexible composite including phase change fibers based on PEG and Polyvinylpyrrolidone (PVP) by using centrifugal spinning. In addition, carbon nanotubes have been acted as thermally conductive fillers to enhance flexible composite phase change fibers thermal conductivity.…”

Section: Introductionmentioning

confidence: 99%

Effect of expanded graphite surface modification on phase change materials nanocomposites thermal protection efficiency

et al. 2022

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In order to investigate phase change materials (PCMs) thermal energy storage capacity as well as shape stability, PCM nanocomposites were fabricated by employing modified expanded graphite (EG) as a conductive filler and polyethylene glycol (PEG) PCM. To improve PCM composite shape stability, EG surface has been modified by utilizing Toluene 2 and 4 diisocyanate (TDI), ethylene glycol and PEG 600, respectively. Findings have illustrated that for PEG PCM/modified EG nanocomposites, shape stability was achieved at 5 wt.% of modified EG filler with less than 10% of melt leakage for all prepared samples as a consequence of surface adsorption capacity increment as well as adequate compatibility. Furthermore, phase change efficiency was calculated as 98% and in addition, thermal diffusion at PCM melting temperature range was negligible and approximately equal to zero. To conclude, it could be declared that, fabricated phase change material composite had desirable characteristics along with adequate shape stability for thermal energy storage applications.

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“…% by maintaining a constant PEG and PVP concentration enhances the thermal conductivity, but a further increase leads to CNT agglomeration. The concentration of PVP did not seem to have an impact on the CNTs beyond a certain concentration and, eventually, the relation between the concentration of PVP and CNTs tend to have an impact on the thermal outcome of the overall composite [ 35 ].…”

Section: Introductionmentioning

confidence: 99%

A Comparative Study on the Role of Polyvinylpyrrolidone Molecular Weight on the Functionalization of Various Carbon Nanotubes and Their Composites

2021

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Polyvinylidene fluoride (PVDF) nanocomposites filled with polyvinylpyrrolidone (PVP) wrapped carbon nanotubes were prepared via a solution casting technique. The effect of the molecular weight (polymer chain length) of the PVP on the ability to wrap different nanotube structures and its impact towards nanotube dispersibility in the polymer matrix was explored. The study was conducted with PVP of four different molecular weights and nanotubes of three different structures. The composites that exhibit an effective nanotube dispersion lead to a nanotube network that facilitates improved thermal, electrical, and mechanical properties. It was observed that nanotubes of different structures exhibit stable dispersions in the polymer matrix though PVP functionalization of different molecular weights, but the key is achieving an effective nanotube dispersion at low PVP concentrations. This is observed in MWNT and AP-SWNT based composites with PVP of low molecular weight, leading to a thermal conductivity enhancement of 147% and 53%, respectively, while for P3-SWNT based composites, PVP of high molecular weight yields an enhancement of 25% in thermal conductivity compared to the non-functionalized CNT-PVDF composite.

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Flexible polyethylene glycol/polyvinylpyrrolidone composite phase change fibres: Preparation, characterization, and thermal conductivity enhancement

Cited by 37 publications

References 23 publications

Minireview on Design of Flexible Composite Phase Change Materials to Various Energy Applications: Progresses and Perspectives

Minireview on Design of Flexible Composite Phase Change Materials to Various Energy Applications: Progresses and Perspectives

Effect of expanded graphite surface modification on phase change materials nanocomposites thermal protection efficiency

A Comparative Study on the Role of Polyvinylpyrrolidone Molecular Weight on the Functionalization of Various Carbon Nanotubes and Their Composites

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