Influence of Static Sequences on the Thermal Behavior of Eco-Friendly Pineapple/Ramie Composites

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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=””]11/09/2025 at 3:47 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 : 732 742

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    Manikandan Kannan, Ramesh Velumayil, Suresh Dharman,

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  1. Research Scholar, Assistant Professor, Assistant Professor, Department of Mechanical Engineering, Vel Tech Rangarajan Dr. Sagunthala R&D Institute of Science and Technology, Chennai, Department of Mechanical Engineering, Vel Tech Rangarajan Dr. Sagunthala R&D Institute of Science and Technology, Chennai, Department of Electronics and Communication Engineering, St. Joseph’s Institute of Technology, Chennai, Tamil Nadu, Tamil Nadu, Tamil Nadu, India, India, India

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Abstract

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nThe increasing demand for sustainable and environmentally responsible materials has driven the exploration of natural fiber-reinforced polymer composites as potential alternatives to conventional synthetic materials. Among various natural fibers, pineapple leaf fiber (PALF) and ramie fiber are notable for their complementary characteristics—PALF offers excellent insulating behavior and lightweight structure, while ramie provides high thermal stability and strength. In the field of Eco-friendly composite product manufacturing, the processing temperature holds significant relevance in influencing overall performance. Therefore, the relevant aspects of the thermal properties of composites must be considered, and accurate thermal measurements using composite test methods are necessary. In this study investigates the thermal properties of six composite specimens with different stacking sequences. The specimens were evaluated based on thermal conductivity (CT), heat deflection temperature (HDT), and coefficient of thermal expansion (CTE). Results indicate that stacking sequences PRRPRRP exhibits the highest thermal conductivity (0.345 W/mK), while RPRPRPR has the lowest (0.205 W/mK). The highest HDT (250°C) was observed in stacking sequences PPRRRPP and RPRPRPR, suggesting superior thermal stability. Conversely, stacking sequences RPPRPPR demonstrated the lowest HDT (87.8°C). The coefficient of thermal expansion varied significantly, with stacking sequences RPPRPPR having the lowest CTE (1×10⁻⁶ /°C), indicating minimal dimensional changes under thermal stress, while RPRPRPR showed the highest CTE (2×10⁻⁵ /°C). Overall, the study emphasizes that static stacking sequence plays a crucial role in determining the thermal characteristics of natural fiber composites. These findings highlight the influence of stacking sequence on thermal behavior, providing insights for optimizing composite materials in high-temperature applications, particularly eco-friendly composites for use in construction, automotive, and thermal barrier systems.nn

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Keywords: ramie fiber; Pineapple fiber; ply; thermal expansion; heat, epoxy.

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

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How to cite this article:
nManikandan Kannan, Ramesh Velumayil, Suresh Dharman. [if 2584 equals=”][226 wpautop=0 striphtml=1][else]Influence of Static Sequences on the Thermal Behavior of Eco-Friendly Pineapple/Ramie Composites[/if 2584]. Journal of Polymer and Composites. 28/07/2025; 13(05):732-742.

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How to cite this URL:
nManikandan Kannan, Ramesh Velumayil, Suresh Dharman. [if 2584 equals=”][226 striphtml=1][else]Influence of Static Sequences on the Thermal Behavior of Eco-Friendly Pineapple/Ramie Composites[/if 2584]. Journal of Polymer and Composites. 28/07/2025; 13(05):732-742. Available from: https://journals.stmjournals.com/jopc/article=28/07/2025/view=0

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[if 424 not_equal=””]Special 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 22/03/2025
Accepted 09/05/2025
Published 28/07/2025
Retracted
Publication Time 128 Days

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