Material Development and Properties of Medium-Density Board from Low and High-Density Polyethylene

Angeline Baldapan Elegio

doi:10.46604/aiti.2025.15280

Authors

Angeline Baldapan Elegio College of Engineering, Architecture and Industrial Design, Bohol Island State University, Bohol, Philippines

DOI:

https://doi.org/10.46604/aiti.2025.15280

Keywords:

polymers, material development, properties, medium-density

Abstract

This study aims to develop a material from waste low-density polyethylene (LDPE) and high-density polyethylene (HDPE) into a medium-density board and assess its mechanical and physical properties. The development starts with degreasing the upcycled plastic sheets, stacking using premixed polyester resin as an adhesive, pressing, and laminating. The specimens are sent to the Department of Science and Technology Industrial Technology Development Institute (DOST-ITDI) standards and testing division to determine the material’s mechanical and physical properties. The findings reveal that the medium-density board successfully combines LDPE and HDPE waste, achieving tensile, flexural, and compressive strengths of 12.1 MPa, 24.2 MPa, and 14.5 MPa, respectively. The board is suitable for shaded outdoor use but not for continuous immersion as it shows a heat deflection temperature of 57.8 ℃ and 1.27% water absorption after 24 hours. Therefore, it is a potential substitute for furniture, home decor, and light construction materials.

References

J. Payne, P. McKeown, and M. D. Jones, “A Circular Economy Approach to Plastic Waste,” Polymer Degradation and Stability, vol. 165, pp. 170-181, 2019.

R. Kumar, A. Verma, A. Shome, R. Sinha, S. Sinha, P. K. Jha, et al., “Impacts of Plastic Pollution on Ecosystem Services, Sustainable Development Goals, and Need to Focus on Circular Economy and Policy Intervention,” Sustainability, vol. 13, no. 17, article no. 9963, 2021.

Y. Yu and M. Flury, “Unlocking the Potentials of Biodegradable Plastics with Proper Management and Evaluation at Environmentally Relevant Concentrations,” npj Materials Sustainability, vol. 2, article no. 9, 2024.

H. L. Chen, T. K. Nath, S. Chong, V. Foo, C. Gibbins, and A. M. Lechner, “The Plastic Waste Problem in Malaysia: Management, Recycling and Disposal of Local and Global Plastic Waste,” SN Applied Sciences, vol. 3, no. 4, article no. 437, 2021.

S. Kubowicz and A. M. Booth, “Biodegradability of Plastics: Challenges and Misconceptions,” Environmental Science & Technology, vol. 51, no. 21, pp. 12058-12060, 2017.

I. Farooq and A. Al-Abduljabbar, “Efficient Production and Experimental Analysis of Bio-Based PLA-CA Composite Membranes via Electrospinning for Enhanced Mechanical Performance and Thermal Stability,” Polymers, vol. 17, no. 8, article no. 1118, 2025.

K. Ziani, C. B. Ioniță-Mîndrican, M. Mititelu, S. M. Neacșu, C. Negrei, E. Moroșan, et al., “Microplastics: A Real Global Threat for Environment and Food Safety: A State of the Art Review,” Nutrients, vol. 15, no. 3, article no. 617, 2023.

R. Ballestar De las Heras, X. Colom, and J. Cañavate, “Comparative Analysis of the Effects of Incorporating Post-Industrial Recycled LLDPE and Post-Consumer PE in Films: Macrostructural and Microstructural Perspectives in the Packaging Industry,” Polymers, vol. 16, no. 7, article no. 916, 2024.

P. Tziourrou, S. Kordella, Y. Ardali, G. Papatheodorou, and H. K. Karapanagioti, “Microplastics Formation Based on Degradation Characteristics of Beached Plastic Bags,” Marine Pollution Bulletin, vol. 169, article no. 112470, 2021.

C. Liu, Q. Zhuo, Y. Ishimura, Y. Hotta, C. Aoki-Suzuki, and A. Watabe, “Regional Insights on the Usage of Single-Use Plastics and Their Disposal in Five Asian Cities,” Sustainability, vol. 17, no. 10, article no. 4276, 2025.

M. Dong, Z. Luo, Q. Jiang, X. Xing, Q. Zhang, and Y. Sun, “The Rapid Increases in Microplastics in Urban Lake Sediments,” Scientific Reports, vol. 10, article no. 848, 2020.

A. D. Baldapan, “Design and Development of Ecobangku from Medium Density Polyethylene Boards,” Turkish Journal of Computer and Mathematics Education, vol. 12, no. 8, pp. 2136-2140, 2021.

Japan International Cooperation Agency Philippine Office, “Build Back Better Annual Report 2021,” Tokyo, Japan, pp. 27, https://www.jica.go.jp/english/overseas/philippine/others/__icsFiles/afieldfile/2025/01/31/report_2021.pdf, accessed in 2025.

M. Junaid, C. Jiang, A. Eltwati, D. Khan, M. Alamri, and M. S. Eisa, “Statistical Analysis of Low-Density and High-Density Polyethylene Modified Asphalt Mixes Using the Response Surface Method,” Case Studies in Construction Materials, vol. 21, article no. e03697, 2024.

M. Junaid, C. Jiang, U. Gazder, I. Hafeez, and D. Khan, “Evaluation of Asphalt Mixtures Modified with Low-Density Polyethylene and High-Density Polyethylene Using Experimental Results and Machine Learning Models,” Scientific Reports, vol. 14, article no. 24601, 2024.

A. S. Abbas and F. A. Mohamed, “Production and Evaluation of Liquid Hydrocarbon Fuel from Thermal Pyrolysis of Virgin Polyethylene Plastics,” Iraqi Journal of Chemical and Petroleum Engineering, vol. 16, no. 1, pp. 21-33, 2015.

S. Ahmed and M. Ali, “Tensile and Flexural Properties of Recycled HDPE for Application in Building Products,” MATEC Web of Conferences, vol. 398, article no. 01038, 2024.

B. C. Bal, “Mechanical Properties of Wood-Plastic Composites Produced with Recycled Polyethylene, Used Tetra Pak® Boxes, and Wood Flour,” Bioresources, vol. 17, no. 4, pp. 6569-6577, 2022.

P. Youssef, K. Zahran, K. Nassar, M. Darwish, and S. El Haggar, “Manufacturing of Wood–Plastic Composite Boards and Their Mechanical and Structural Characteristics,” Journal of Materials in Civil Engineering, vol. 31, no. 10, article no. 0002881, 2019.

Philippine Atmospheric, Geophysical and Astronomical Services Administration, “Climate of the Philippines,” https://www.pagasa.dost.gov.ph/information/climate-philippines, accessed in 2025.

A. Alsabri, F. Tahir, and S. G. Al-Ghamdi, “Environmental Impacts of Polypropylene (PP) Production and Prospects of Its Recycling in the GCC Region,” Materials Today: Proceedings, vol. 56, part 4, pp. 2245-2251, 2022.