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Indradeep Kumar,
Sathiyamoorthy Margabandu,
M. Chitra,
L.Saravanakumar,
T. Magesh,
Dhiren Patel,
S Richard,
M Anusuya,
Sapthagirivasan.V,
- Assistant Professor, Amity Institute of Technology, Amity University, Noida, Uttar Pradesh, India
- Assistant Professor, Department of Mechanical Engineering, Easwari Engineering College, Ramapuram, Chennai, Tamil Nadu, India
- Assistant Professor, Department of Chemistry, Chellammal Womens College, Guindy, Chennai, Tamil Nadu, India
- Professor, Department of Mechanical Engineering, Sri Sairam Engineering College, West Tambaram, Chennai, Tamil Nadu, India
- Professor, Department of Electrical and Electronics Engineering, R.M.K. Engineering College, Kavaraipettai, Chennai, Tamil Nadu, India
- Assistant Professor, Department of Mechanical Engineering, Indus University, Rancharda, Ahmedabad, Gujarat, India
- Professor, Department of Mechanical Engineering, Grace College of Engineering, Thoothukudi, Tamil Nadu, India
- Professor, Department of Physics, Indra Ganesan College of Engineering, Trichy, Tamil Nadu, India
- Research Scholar, Department of mechanical Engineering, Arizona State University, , United States
Abstract
This study explores the performance enhancement and characterization of polymer-based phase change material (PCM) composites reinforced with graphite nanoplatelets (GNPs) for thermal management applications. The integration of GNPs significantly improved thermal conductivity, which increased from 0.38 W/m·K in pure PCM to 2.60 W/m·K with 10 wt% GNPs, marking a 580% improvement. Differential Scanning Calorimetry (DSC) analysis revealed a reduction in latent heat capacity from 180 J/g to 150 J/g—approximately 16.7%—attributed to the volume displacement of non-phase-changing GNPs. Despite this, the composites exhibited a 35% reduction in supercooling, suggesting enhanced crystallization efficiency and thermal cycling stability.Thermogravimetric Analysis (TGA) confirmed the composites’ enhanced thermal stability, with the onset decomposition temperature increasing from 320°C to 380°C. The residual mass at 700°C rose from 3% (pure PCM) to 10% (GNP composite), indicating increased thermal resistance. Mechanical testing showed a substantial 80% increase in tensile strength, from 15 MPa to 27 MPa, although elongation at break decreased by 26.7%, reflecting increased brittleness due to GNP reinforcement.These findings highlight the potential of GNP-reinforced PCM composites for advanced thermal energy storage and management, particularly in electronics cooling, building insulation, and renewable energy systems. The enhanced thermal conductivity, reduced supercooling, improved thermal stability, and mechanical reinforcement make these composites promising candidates for efficient and durable thermal applications.
Keywords: Mechanical Strength, Phase Change Material (PCM), Thermal Conductivity, Graphite Nanoplatelets (GNPs), Super-cooling Reduction
Indradeep Kumar, Sathiyamoorthy Margabandu, M. Chitra, L.Saravanakumar, T. Magesh, Dhiren Patel, S Richard, M Anusuya, Sapthagirivasan.V. Enhancing Thermal and Mechanical Performance of Polymer-Based Phase Change Materials with Graphite Nanoplatelets: A High-Efficiency Approach for Energy Storage Applications. Journal of Polymer and Composites. 2025; 13(02):-.
Indradeep Kumar, Sathiyamoorthy Margabandu, M. Chitra, L.Saravanakumar, T. Magesh, Dhiren Patel, S Richard, M Anusuya, Sapthagirivasan.V. Enhancing Thermal and Mechanical Performance of Polymer-Based Phase Change Materials with Graphite Nanoplatelets: A High-Efficiency Approach for Energy Storage Applications. Journal of Polymer and Composites. 2025; 13(02):-. Available from: https://journals.stmjournals.com/jopc/article=2025/view=208712
References
- Sharma A, Tyagi VV, Chen CR, Buddhi D. Review on thermal energy storage with phase change materials and applications. Renew Sustain Energy Rev. 2009;13(2):318-345.
- Zhang X, Jia H, Wu H, et al. Optimization of magnesium-doped lithium metal anode for high performance lithium metal batteries through modeling and experiment. Angew Chem Int Ed Engl. 2021;60(30):16506-16513.
- Su W, Darkwa J, Kokogiannakis G. Review of solid–liquid phase change materials and their encapsulation technologies. J Therm Anal Calorim. 2015;120(1):447-460.
- Kim J, Cote LJ, Huang J. Two dimensional soft material: new faces of graphene oxide. Acc Chem Res. 2012;45(8):1356-1364.
- Xu Y, Fisher TS. Enhanced thermal contact conductance using carbon nanotube array interfaces. IEEE Trans Compon Packag Technol. 2006;29(2):261-267.
- Huang X, Zhi C, Lin Y, et al. Thermally conductive nanocomposites with boron nitride nano-fillers. Energy Environ Sci. 2013;6(4):958-964.
- Wang H, Yang Y, Liang Y, et al. Rechargeable Li-O2 batteries with a covalently coupled MnCo2O4–graphene hybrid as an oxygen cathode catalyst. Nano Lett. 2011;11(7):2644-2647.
- Li Y, Li Y, Pei A, et al. Atomic structure of sensitive battery materials and interfaces revealed by cryo–electron microscopy. Science. 2017;358(6362):506-510.
- Zhang Y, Zhang N, Jia H, et al. A polymer-in-salt electrolyte with enhanced oxidative stability for lithium metal polymer batteries. ACS Appl Mater Interfaces. 2021;13(27):31583-31593.
- Wei W, Cui X, Chen W, et al. Manganese oxide-based materials as electrochemical supercapacitor electrodes. Chem Soc Rev. 2011;40(3):1697-1721.
- Luo J, Sun M, Xu L, et al. Recent advances in organic electrode materials for lithium and sodium batteries. Energy Environ Sci. 2020;13(3):662-684.
- Ding Y, Cano ZP, Yu A, et al. Solid-state lithium–sulfur batteries: advances, challenges, and perspectives. Adv Mater. 2019;31(20):1807712.
- Hu X, Zhang W, Liu X, et al. Graphene-based monolithic 3D architectures for advanced energy storage devices. Chem Soc Rev. 2015;44(8):2376-2404.
- Fang Y, Lv Y, Gong F, et al. Two-dimensional mesoporous carbon nanosheets and their derived graphene nanosheets: synthesis and efficient lithium ion storage. Adv Funct Mater. 2014;24(3):379-386.
- Ren W, Cheng HM. The global growth of graphene. Nat Nanotechnol. 2014;9(10):726-730.
- Zeng X, Huang X, Wang R, et al. Thermal conductivity enhancement of boron nitride/polyimide nanocomposites via electro-spinning-hot press technology. Compos Part A Appl Sci Manuf. 2018;107:561-569.
- Song S, Yu S, Wu P. Enhanced thermal conductivity of phase change materials via electrospun three-dimensional nano-fibrous network for thermal energy storage. Nano Energy. 2017;31:183-189.
- Yang J, Tang L-S, Bao R-Y, et al. Hybrid boron nitride@graphene oxide aerogels/epoxy composites with enhanced thermal conductivity for electronic packaging. Compos Part A Appl Sci Manuf. 2018;110:11-19.
- Li M, Wu Z, Cao W, et al. Enhanced thermal conductivity of phase change materials by functionalized graphene nano-platelets. Appl Therm Eng. 2017;112:1517-1522.
- Wang W, Yang X, Fang Y, et al. Enhanced thermal conductivity and thermal performance of form-stable composite phase change materials by using β-Aluminum nitride. Appl Energy. 2017;191:166-174.
- Li W, Yu W, Wu Y, et al. Enhanced thermal conductivity of PEG/SiO₂ composite PCM by in situ doping of Ag nanoparticles. Appl Therm Eng. 2018;129:1404-1412.
- Zhou D, Zhao CY, Tian Y. Review on thermal energy storage with phase change materials (PCMs) in building applications. Appl Energy. 2012;92:593-605.
- Wang J, Xie H, Xin Z, et al. Enhancing thermal conductivity of palmitic acid based phase change materials with carbon nanotubes as fillers. Sol Energy. 2010;84(2):339-344.
- Fan L, Khodadadi JM. Thermal conductivity enhancement of phase change materials for thermal energy storage: a review. Renew Sustain Energy Rev. 2011;15(1):24-46.
- Zhang H, Wang X, Wu D. Silicon carbide nano-wires reinforced silicon nitride ceramics with improved thermal conductivity. J Eur Ceram Soc. 2018;38(4):1658-1664.
- Rafiee MA, Rafiee J, Wang Z, Song H, Yu Z-Z, Koratkar N. Enhanced mechanical properties of nanocomposites at low graphene content. ACS Nano. 2009;3(12):3884-3890.
- Jiang X, Drzal LT. Multifunctional high-density polyethylene nanocomposites produced by incorporation of exfoliated graphene nano-platelets. Polymer Composites. 2012;33(4):636-642.
- Kuilla T, Bhadra S, Yao D, Kim NH, Bose S, Lee JH. Recent advances in graphene-based polymer composites. Progress in Polymer Science. 2010;35(11):1350-1375.
- Young RJ, Liu M, Kinloch IA, Li S, Zhao X, Cooper AI. The mechanics of reinforcement of polymers by graphene nano-platelets. Composites Science and Technology. 2018;154:110-116.
- Wang, Z., et al. (2023). “Designing Graphene–Polymer Interfaces for Enhanced Thermal Conductivity in Energy Storage Applications.” Advanced Functional Materials, 33(4), 2207894.
- Li, B., et al. (2022). “Phase Change Materials Enhanced by Hybrid Nanostructures: Toward High-Efficiency Thermal Regulation.” Nano Energy, 95, 107008.
- Kumar, S., et al. (2021). “Graphene-based Polymer Composites: Recent Advances in Thermal Conductivity.” Composites Part A, 150, 106602.
- Zhang, J., & Huang, Y. (2020). “Multifunctional Phase Change Composites for Solar Thermal Energy Storage.” Journal of Energy Chemistry, 51, 366–375.
- Yang, Q., et al. (2023). “Thermal Management in Electronics: Advances in PCM Composites with Carbon Nanomaterials.” Journal of Materials Chemistry C, 11(5), 1403–1416.

Journal of Polymer and Composites
Volume | 13 |
02 | |
Received | 15/03/2025 |
Accepted | 17/04/2025 |
Published | 24/04/2025 |
Publication Time | 40 Days |