Title:
Flame-Retardant Modification of Polylactic Acid/Bamboo Fiber Composites Using Aluminum Diethyl Pyrophosphate, Melamine Cyanurate, and Polyethylene Glycol
Author(s):
Y. Feng, Y. Song, Z. Guo, W. Li, T. Yu, S. Wang, P. Guo, K. Wen, W. Cheng, W. Song, and Z. Jiang
Publication:
Materials Journal
Volume:
123
Issue:
4
Appears on pages(s):
169-176
Keywords:
bamboo fiber; flame retardants; polyethylene glycol (PEG); polylactic acid (PLA)
DOI:
10.14359/51749414
Date:
7/1/2026
Abstract:
A twin-screw extruder was employed to melt-blend polylactic acid (PLA), bamboo fibers (BF), aluminum diethyl pyrophosphate (ADP), melamine cyanurate (MCA), and polyethylene glycol (PEG). In the PLA/BF/PEG ternary composite, increasing the PEG dosage reduced mechanical properties. Conversely, in the PLA/BF/ADP/MCA/PEG multicomposite, higher PEG content enhanced mechanical performance. Compared with PLA/BF composites, the addition of ADP, MCA, and PEG increased the melt flow index by over 15-fold, with MCA-containing composites showing a 24-fold improvement. Both PEG-containing and non-PEG PLA/BF/ADP/MCA composites achieved UL94 V-0 flame retardancy ratings, with oxygen barriers ranging between 24 and 26 vol%. Importantly, while maintaining the UL94 V-0 rating, the introduction of PEG improved mechanical properties through more uniform dispersion of bamboo fibers.
Related References:
1. Behera, D.; Pattnaik, S. S.; Nanda, D.; Mishra, P. P.; Manna, S.; and Behera, A. K., “Review of Bamboo Fiber Reinforced Composites and Their Potential Applications,” Emergent Materials, V. 8, No. 1, 2025, pp. 157-172. doi: 10.1007/s42247-024-00832-9
2. Xu, D.; He, S.; Leng, W.; Chen, Y.; and Wu, Z., “Replacing Plastic with Bamboo: A Review of the Properties and Green Applications of Bamboo-Fiber-Reinforced Polymer Composites,” Polymers, V. 15, No. 21, 2023, p. 4276. doi: 10.3390/polym15214276
3. Ramli, R. A., “A Comprehensive Review on Utilization of Waste Materials in Wood Plastic Composite,” Materials Today: Sustainability, V. 27, 2024, p. 100889. doi: 10.1016/j.mtsust.2024.100889
4. Zhao, X.; Ye, H.; Chen, F.; and Wang, G., “Bamboo as a Substitute for Plastic: Research on the Application Performance and Influencing Mechanism of Bamboo Buttons,” Journal of Cleaner Production, V. 446, 2024, p. 141297. doi: 10.1016/j.jclepro.2024.141297
5. Kumar, K. N., and Babu, P. D., “Experimental Study on Mechanical, Morphological and Thermal Performance of Bamboo-Reinforced Polylactic Acid-Based Montmorillonite Clay Composites,” Industrial Crops and Products, V. 209, 2024, p. 117950. doi: 10.1016/j.indcrop.2023.117950
6. Qiu, H.; Yang, J.; Zhang, B.; Zhu, J.; Yan, S.; Chen, L.; Liu, C.; He, L.; and Huang, H., “Chip Morphology’s Effect on Properties of PLA-Based Bamboo–Plastic Composites Produced Using Hot-Pressing,” BioResources, V. 19, No. 3, 2024, pp. 4555-4567. doi: 10.15376/biores. 19.3.4555-4567
7. Li, Y.; Wang, H.; Cheng, H.; Zhang, Y.; Wang, H.; and Han, C., “Poly(L-Lactide Acid)/Poly(D-Lactide Acid)/Bamboo Fiber (BF) Bio-Composites with Enhanced Heat Resistance, Mechanical and Rheological Performance,” Fibers and Polymers, V. 25, No. 11, 2024, pp. 4453-4467. doi: 10.1007/s12221-024-00753-8
8. Wang, Y.; Sultana, J.; Rahman, M. M.; Ahmed, A.; Azam, A.; Mushtaq, R. T.; and Rehman, M., “A Sustainable and Biodegradable Building Block: Review on Mechanical Properties of Bamboo Fibre Reinforced PLA Polymer Composites and their Emerging Applications,” Fibers and Polymers, V. 23, No. 12, 2022, pp. 3317-3342. doi: 10.1007/s12221-022-4871-z
9. Rao, G. S.; Debnath, K.; and Mahapatra, R. N., “Recycling and Degradation Behaviour of the Bamboo Fibre Reinforced Green Composite Fabricated by Injection Moulding,” Sustainable Materials and Technologies, V. 39, 2024, p. e00865. doi: 10.1016/j.susmat.2024.e00865
10. Kumar, K. N.; Babu, P. D.; Surakasi, R.; Kumar, P. M.; Ashokkumar, P.; Khan, R.; Alfozan, A.; and Gebreyohannes, D. T., “Mechanical and Thermal Properties of Bamboo Fiber-Reinforced PLA Polymer Composites: A Critical Study,” International Journal of Polymer Science, V. 2022, No. 1, 2022, p. 1332157. doi: 10.1155/2022/1332157
11. Khan, A.; Sapuan, S. M.; Yusuf, J.; Siddiqui, V. U.; Zainudin, E. S.; Zuhri, M. Y. M.; Baharuddin, B. T. H. T.; Ansari, M. A.; and Rahman, A. A. A., “An Examination of Cutting-Edge Developments in Bamboo-PLA Composite Research: A Comprehensive Review,” Renewable & Sustainable Energy Reviews, V. 188, 2023, p. 113832. doi: 10.1016/j.rser.2023.113832
12. Niu, Q.; Yue, X.; Guo, Z.; Fang, Z.; and Li, J., “Strengthening and Flame Retarding Effect of Bamboo Fiber Modified by Silica Aerogel on Polylactic Acid Composites,” Construction and Building Materials, V. 340, 2022, p. 127696. doi: 10.1016/j.conbuildmat.2022.127696
13. Yang, Y.; Wan, H.; Wang, B.; Wang, B.; Chen, K.; Tan, H.; Sun, C.; and Zhang, Y., “Preparation and Properties of Bamboo Fiber/Polylactic Acid Composite Modified with Polycarbodiimide,” Industrial Crops and Products, V. 218, 2024, p. 118829. doi: 10.1016/j.indcrop.2024.118829
14. Long, H.; Wu, Z.; Dong, Q.; Shen, Y.; Zhou, W.; Luo, Y.; Zhang, C.; and Dong, X., “Effect of Polyethylene Glycol on Mechanical Properties of Bamboo Fiber‐Reinforced Polylactic Acid Composites,” Journal of Applied Polymer Science, V. 136, No. 26, 2019, p. 47709. doi: 10.1002/app.47709
15. Sun, H. W.; Zhang, H.; Zhen, Q.; Wang, S. F.; Hu, J. J.; Cui, J. Q.; and Qian, X. M., “Large-Scale Preparation of Polylactic Acid/Polyethylene Glycol Micro/Nanofiber Fabrics with Aligned Fibers via a Post-Drafting Melt Blown Process,” Journal of Polymer Research, V. 29, No. 8, 2022, p. 319. doi: 10.1007/s10965-022-03184-2
16. Kim, D. K.; Lee, S. H.; Hong, S. K.; Ahn, M. S.; Han, S. W.; Lee, D. H.; and Yu, S., “Influence of Phosphorus-Based Flame Retardants on Polypropylene Insulation for High-Voltage Power Cable Applications,” Functional Composites and Structures, V. 4, No. 4, 2022, p. 045002. doi: 10.1088/2631-6331/ac9951
17. Liu, Y.; Wang, R.; Zhang, X.; Zhang, J.; Dong, Z.; and Wei, J., “Synergy between the Aluminum Diethyl Hypophosphite (ADP) and Melamine Cyanurate (MCA) in Stereo-Complex Type Polylactic Acid Simultaneously towards Fire Retardancy and Heat Resistant Properties,” Thermochimica Acta, V. 721, 2023, p. 179432. doi: 10.1016/j.tca.2023.179432
18. Hao, F.; Chen, Y.; Sun, Z.; and Qian, L., “Component Ratio Effects of Melamine Cyanurate and Aluminum Diethylphosphinate in Flame Retardant TPU,” Journal of Polymer Research, V. 30, No. 1, 2023, p. 25. doi: 10.1007/s10965-022-03401-y