Mechanical and Biodegradation Properties of Warp Knitted Polylactic Acid (PLA) for Smart Food Packaging Applications
Abdelrazek, S., Abou Taleb, E., Mahmoud, A., Hamouda, T. (2025). Mechanical and Biodegradation Properties of Warp Knitted Polylactic Acid (PLA) for Smart Food Packaging Applications. EKB Journal Management System, 68(11), 309-324. doi: 10.21608/ejchem.2025.332808.11254
SHaymaa Gamal Elden Abdelrazek; Eman M. A. Abou Taleb; Abeer Sayed Mahmoud; Tamer Hamouda. "Mechanical and Biodegradation Properties of Warp Knitted Polylactic Acid (PLA) for Smart Food Packaging Applications". EKB Journal Management System, 68, 11, 2025, 309-324. doi: 10.21608/ejchem.2025.332808.11254
Abdelrazek, S., Abou Taleb, E., Mahmoud, A., Hamouda, T. (2025). 'Mechanical and Biodegradation Properties of Warp Knitted Polylactic Acid (PLA) for Smart Food Packaging Applications', EKB Journal Management System, 68(11), pp. 309-324. doi: 10.21608/ejchem.2025.332808.11254
Abdelrazek, S., Abou Taleb, E., Mahmoud, A., Hamouda, T. Mechanical and Biodegradation Properties of Warp Knitted Polylactic Acid (PLA) for Smart Food Packaging Applications. EKB Journal Management System, 2025; 68(11): 309-324. doi: 10.21608/ejchem.2025.332808.11254

Mechanical and Biodegradation Properties of Warp Knitted Polylactic Acid (PLA) for Smart Food Packaging Applications

Egyptian Journal of Chemistry
Volume 68, Issue 11, November 2025, Page 309-324  XML PDF (604.47 K)
Document Type: Original Article
DOI: 10.21608/ejchem.2025.332808.11254
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Authors
SHaymaa Gamal Elden Abdelrazek email orcid 1; Eman M. A. Abou Taleb2; Abeer Sayed Mahmoud3; Tamer Hamoudaorcid 4
1A-Teaching Lecture, Faculty Industry and Energy Technology, 6th of October Technological University, Egypt B-Textile engineer,Faculty of applied arts,Helwan university, Egypt
2Spinning, Weaving and Knitting Dept., Faculty of Applied Arts, Helwan University, Egypt
3Printing, Publishing and Packaging Dept., Faculty of Applied Arts, Helwan University, Egypt
4Spinning and Weaving Engineering Dept., Textile Industries Research Division, National Research Centre, 33 El Bohouth St., Dokki, Cairo, Egypt, P.O.12622
Abstract
Packaging is one of the essential elements of today’s life and it plays a major role in our daily lives. Packaging is inevitable to different communities of people: manufacturer’s shopkeepers, sellers, and consumers. Food packaging is crucial for prevents contamination and preserves quality by reducing spoilage, extending shelf life, and ensuring safety. In the recent years, various studies have been executed on biodegradable materials to replace petroleum based plastics for food packaging applications. The demand of biodegradable packaging is increasing as it can be disposed with minimum environmental impact, but the growing market is still in its infancy predominantly due to the lack of materials. Biodegradable polymers such as PLA has given a significant attention in food packaging because it has an excellent properties such as environmentally, friendly, biocompatibility and energy savings. So, this study investigates the mechanical and biodegradation properties of 18 warp knitted polylactic acid (PLA) samples, produced with pick densities of 2, 3, and 4 courses/cm and mesh sizes ranging from 0.03 to 10.37 cm², for smart food packaging applications. Mechanical tests (tensile strength, burst resistance, abrasion resistance) revealed an inverse relationship between mesh size and strength, with sample P4M (mesh size 0.03 cm²) achieving the highest tensile strength (78.67 N/m²) and burst resistance (773.33 kPa). Biodegradation tests showed complete decomposition in soil after 8 months. PLA fabrics infused with red cabbage indicator exhibited color changes to detect banana ripening, demonstrating smart packaging functionality."
Keywords
Poly (lactic acid); Food packaging; biodegradable; biopolymer; Environmental; Indicator
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