The Impact of Ultraviolet Radiation on the Mechanical and Physical Properties of Wood Plastic Composite Using Waste Polypropylene Matrix
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Abstract
Indonesia has an abundance of wood sawdust waste and polypropylene (PP) plastic waste, which remain underutilized. This study aims to investigate the effects of ultraviolet (UV) radiation on the mechanical and physical properties of wood plastic composite (WPC) made from recycled polypropylene. WPC specimens were fabricated using injection molding with 40-mesh pine and teak wood particles at 10% weight fraction. The samples were exposed to UV radiation for 0, 240, and 750 hours, respectively. Mechanical properties were assessed through impact toughness using the Izod test, while physical properties were evaluated based on density and thickness swelling. The results indicated that prolonged UV exposure significantly reduced the impact strength and density of WPC while increasing its thickness swelling. Notably, teak-based WPC exhibited greater resistance to UV degradation compared to pine-based WPC. These findings highlight the importance of UV stability in WPC applications for outdoor environments and suggest potential improvements through material modifications or protective coatings.
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N. Karthi, K. Kumaresan, S. Sathish, S. Gokulkumar, L. Prabhu, and N. Vigneshkumar, “An overview: Natural fiber reinforced hybrid composites, chemical treatments and application areas,” in Materials Today: Proceedings, 2019, vol. 27, pp. 2828–2834.
A. Haryanto et al., “Valorization of indonesian wood wastes through pyrolysis: A review,” Energies, vol. 14, no. 5, 2021.
D. Aydemir, M. Alsan, A. Can, E. Altuntas, and H. Sivrikaya, “Accelerated weathering and decay resistance of heat-treated wood reinforced polypropylene composites,” Drv. Ind., vol. 70, no. 3, pp. 279–285, 2019.
E. Kuka et al., “Weathering properties of wood-plastic composites based on heat-treated wood and polypropylene,” Compos. Part A Appl. Sci. Manuf., vol. 139, no. July, p. 106102, 2020.
S. Durmaz, Y. Z. Erdil, and O. Ozgenc, “Accelerated weathering performance of wood-plastic composites reinforced with carbon and glass fibre-woven fabrics,” Color. Technol., vol. 138, no. 1, pp. 71–81, 2022, doi: 10.1111/cote.12572.
J. Kajaks, K. Kalnins, and J. Matvejs, “Accelerated aging of WPCs based on polypropylene and birch plywood sanding dust,” Open Eng., vol. 11, no. 1, pp. 319–328, 2021.
P. Hirsch and T. Theumer, “Effects of UV Aging, Water Storage and Recycling on Mechanical Properties of Biogenic Wood-Plastic Composites from Polyamide 11,” Macromol. Symp., vol. 403, no. 1, pp. 1–5, 2022.
Y. Martinez-Lopez, J. B. Paes, F. G. Gonçalves, E. Martínez-Rodríguez, and P. N. de Medeiros Neto, “Physico-mechanical properties of wood-plastic produced with forest species and thermoplastic materials,” Floresta e Ambient., vol. 27, no. 2, pp. 1–9, 2020.
J. S. Fabiyi and A. G. McDonald, “Degradation of polypropylene in naturally and artificially weathered plastic matrix composites,” Maderas Cienc. y Tecnol., vol. 16, no. 3, pp. 275–290, 2014.
A. H. Elsheikh, H. Panchal, S. Shanmugan, T. Muthuramalingam, A. M. El-Kassas, and B. Ramesh, “Recent progresses in wood-plastic composites: Pre-processing treatments, manufacturing techniques, recyclability and eco-friendly assessment,” Clean. Eng. Technol., vol. 8, no. March, p. 100450, 2022.
A. Delviawan, S. Suzuki, Y. Kojima, and H. Kobori, “The influence of filler characteristics on the physical and mechanical properties of wood plastic composite(s),” Rev. Agric. Sci., vol. 7, no. April, pp. 1–9, 2019.
M. Ramesh et al., “A Critical Review on Wood-Based Polymer Composites: Processing, Properties, and Prospects,” Polymers (Basel)., vol. 14, no. 3, pp. 1–35, 2022.
H. Fathi, S. Kazemirad, and V. Nasir, “Mechanical degradation of wood under ultraviolet radiation characterized by Lamb wave propagation,” Struct. Control Heal. Monit., vol. 28, no. 6, pp. 1–17, 2021.
V. D. Nguyen, J. Hao, and W. Wang, “Ultraviolet weathering performance of high-density polyethylene/wood-flour composites with a basalt-fiber-included shell,” Polymers (Basel)., vol. 10, no. 8, pp. 12–16, 2018.
K. Bhaskar, D. Jayabalakrishnan, M. Vinoth Kumar, S. Sendilvelan, and M. Prabhahar, “Analysis on mechanical properties of wood plastic composite,” Mater. Today Proc., vol. 45, no. xxxx, pp. 5886–5891, 2020.
A. A. A. Rahman, O. J. Adeboye, A. Adebayo, and M. R. Salleh, “Behaviour and Some Properties of Wood Plastic Composite Made from Recycled Polypropylene and Rubberwood,” Jordan J. Mech. Ind. Eng., vol. 17, no. 2, pp. 281–287, 2023.
M. N. Siddiqui, H. H. Redhwi, A. L. Andrady, S. A. Furquan, and S. Hussain, “Effect of Extensive Solar Ultra-Violet Irradiation on the Durability of High-Density Polyethylene- and Polypropylene-Based Wood–Plastic Composites,” Polymers (Basel)., vol. 17, no. 1, pp. 1–16, 2025.
S. Ci, B. Wang, C. Di, M. Wang, B. Zhu, and K. Qiao, “Effect of Ultraviolet Aging on Properties of Epoxy Resin and Its Pultruded Fiber-Reinforced Composite,” Polymers (Basel)., vol. 17, no. 3, 2025.
L. O. Vasiljevs et al., “Changes in Wood Plastic Composite Properties After Natural Weathering and Potential Microplastic Formation,” Forests, vol. 15, p. 2102, 2024.
C. Budiyantoro and F. Yudhanto, “Enhancing mechanical properties of waste expanded polystyrene composites through varied coupling agents and wood powder formulations,” J. Polimesin, vol. 21, no. 6, p. 589, 2023.
M. Kiaei, B. Kord, and R. Vaysi, “Influence of residual lignin content on physical and mechanical properties of kraft pulp / PP composites,” Maderas Cienc. y Tecnol., vol. 16, no. 4, pp. 495–503, 2014.
Fatkhurrohman, H. S. Budi Rochardjo, A. Kusumaatmaja, and F. Yudhanto, “Extraction and effect of vibration duration in ultrasonic process of cellulose nanocrystal (CNC) from ramie fiber,” AIP Conf. Proc., vol. 2262, no. September, 2020.
F. Alavi, A. H. Behravesh, and M. Mirzaei, “Effect of temperature on the fracture mechanism of wood-plastic composites in situ,” J. Thermoplast. Compos. Mater., vol. 29, no. 1, pp. 3–15, 2016.
M. Baig, B. Almeshari, A. Aabid, H. Junaedi, and A. Almajid, “The effect of maleic anhydride grafted polypropylene addition on the degradation in the mechanical properties of the PP/wood composites,” Heliyon, vol. 10, no. 9, p. e30510, 2024.
E. Farotti and M. Natalini, “Injection molding. Influence of process parameters on mechanical properties of polypropylene polymer. A first study.,” in Procedia Structural Integrity, 2018, vol. 8, pp. 256–264.
A. P. Golhin, C. Srivastava, A. Strandlie, A. S. Sole, and S. Grammatikos, “Effects of accelerated aging on the appearance and mechanical performance of materials jetting products,” Mater. Des., vol. 228, no. April, p. 111863, 2023.
Q. T. H. Shubhra, A. K. M. M. Alam, and M. A. Quaiyyum, “Mechanical properties of polypropylene composites: A review,” J. Thermoplast. Compos. Mater., vol. 26, no. 3, pp. 362–391, 2013.
S. L. Belcher, Applied Plastics Engineering Handbook. Chadds Ford, 2011.
J. Bhaskar, S. Haq, A. K. Pandey, and N. Srivastava, “Evaluation of properties of propylene-pine wood plastic composite,” J. Mater. Environ. Sci., vol. 3, no. 3, pp. 605–612, 2012.
A. L. Andrady et al., “Effects of UV radiation on natural and synthetic materials,” Photochem. Photobiol. Sci., vol. 22, no. 5, pp. 1177–1202, 2023.
T. Lu, E. Solis-Ramos, Y. Yi, and M. Kumosa, “UV degradation model for polymers and polymer matrix composites,” Polym. Degrad. Stab., vol. 154, pp. 203–210, 2018.
