Thermal Conductivity and Energy Storage Performance of Paraffin Wax-Based Composites Reinforced with Amine Functionalized Graphene as a Nanofiller

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nThis is an unedited manuscript accepted for publication and provided as an Article in Press for early access at the author’s request. The article will undergo copyediting, typesetting, and galley proof review before final publication. Please be aware that errors may be identified during production that could affect the content. All legal disclaimers of the journal apply.n

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Year : 2025 [if 2224 equals=””]15/09/2025 at 4:34 PM[/if 2224] | [if 1553 equals=””] Volume : 13 [else] Volume : 13[/if 1553] | [if 424 equals=”Regular Issue”]Issue : [/if 424][if 424 equals=”Special Issue”]Special Issue[/if 424] [if 424 equals=”Conference”][/if 424] 05 | Page : 355 374

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    Daya Shankar Prasad, Pradeep Kumar Singh,

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  1. Assistant Professor, Assistant Professor, Department of Mechanical Engineering, MVN University, Palwal, Department of Mechanical Engineering, GLA University, Mathura, Haryana, Uttar Pradesh, India, India

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Abstract

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nIn this study, amine-functionalized graphene (AFG) was employed as a nanofiller/nanomaterial to enhance the thermal and structural properties of a paraffin wax (PW)-based polymeric composite, formulated as a phase change material (PCM). The PW/AFG composite was synthesized with varying nanofiller volume fractions (0.20%, 0.40%, 0.80%, and 1.60%), and its thermal conductivity, stability, and energy storage performance were systematically analyzed. The incorporation of AFG into the polymer matrix significantly improved the composite’s thermal conductivity, achieving enhancements of 13.58% to 46.42%. The experimental results confirmed the duration of composite charging time reduced by 61.5% and discharging time extended by 62.5% with increasing the concentration of nanofiller in PW. The rheological and morphological behavior of the composites was also studied to understand filler-matrix interactions. The composite exhibited enhanced thermal stability and latent heat storage, confirming effective dispersion and compatibility of AFG within the paraffin matrix. It has been observed that the optimal concentration is 0.8 vol% based on a comparative analysis of thermal conductivity, charging/discharging times, and stability across various concentrations. These results highlight the potential of polymer-based composite PCMs for advanced thermal energy storage applications.nn

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Keywords: Nanocomposite; polymer; phase change material (PCM); amine-functionalized graphene; thermal stability.

n[if 424 equals=”Regular Issue”][This article belongs to Journal of Polymer and Composites ]

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How to cite this article:
nDaya Shankar Prasad, Pradeep Kumar Singh. [if 2584 equals=”][226 wpautop=0 striphtml=1][else]Thermal Conductivity and Energy Storage Performance of Paraffin Wax-Based Composites Reinforced with Amine Functionalized Graphene as a Nanofiller[/if 2584]. Journal of Polymer and Composites. 28/08/2025; 13(05):355-374.

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How to cite this URL:
nDaya Shankar Prasad, Pradeep Kumar Singh. [if 2584 equals=”][226 striphtml=1][else]Thermal Conductivity and Energy Storage Performance of Paraffin Wax-Based Composites Reinforced with Amine Functionalized Graphene as a Nanofiller[/if 2584]. Journal of Polymer and Composites. 28/08/2025; 13(05):355-374. Available from: https://journals.stmjournals.com/jopc/article=28/08/2025/view=0

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[if 424 not_equal=””]Regular Issue[else]Published[/if 424] Subscription Original Research

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Journal of Polymer and Composites

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[if 344 not_equal=””]ISSN: 2321–2810[/if 344]

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Volume 13
[if 424 equals=”Regular Issue”]Issue[/if 424][if 424 equals=”Special Issue”]Special Issue[/if 424] [if 424 equals=”Conference”][/if 424] 05
Received 09/07/2025
Accepted 12/08/2025
Published 28/08/2025
Retracted
Publication Time 50 Days

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