Mechanical Properties of Ramie Fabric Reinforced Polypropylene Composites

Abstract:

Ramie fibre has been widely utilized, particularly in the textile industry. The application of Ramie fabric-based composites has been increasingly favored for the fabrication of lightweight structures and high-performance products. Polypropylene (PP) is commonly used to reinforce natural fibres due to its superior physical, mechanical, and thermal properties. Proper treatment of ramie fabric is crucial to ensure strong bonding between the ramie and polypropylene (PP). Alkali treatment is commonly employed to address bonding issues. In this study, ramie fabric was treated using different concentrations (5 wt%, 16.7 wt%, 28.6 wt%, and 37.5 wt%) and durations (30 minutes, 1 hour, 20 hours, and 24 hours). Subsequently, a compression molding process was employed to manufacture both the lamina and laminate. The lamina was exposed to a temperature of 170°C and a pressure of 100 kg/cm³ for three minutes, while the laminate was subjected to a temperature of 170°C and a pressure of 210 kg/cm³ for seven minutes. The results revealed an increase in tensile strength compared to pure PP tests. The single and five-layered composites showing an increase of 1.65% and 2.79%, respectively. The optimal tensile strength reached by five-layered composite was 25.82 MPa. Despite the increased strength, fibre failure occurred due to swelling. The occurrence of fibre failure and increased strength when transformed into a composite highlights the potential for further improvement of ramie fabric and polypropylene.

• Periodical: Materials Science Forum (Volume 1160)
• Pages: 31-38
• DOI: https://doi.org/10.4028/p-1URwt0
• Online since: October 2025
• Authors: Imam Abdurrahman, Ronaldo Wijaya, Lia Amelia Tresna Wulan Asri, Riza Wirawan*
• Keywords: Alkali Treatment, Natural Fibre Composite, NFRP, Ramie Textile, Swelling

References

[1] Ngo, T.-D., (2020) Fiber Composites, in Introduction to Composite Materials

[2] Rajak, D.K., et al., Recent Progress of Reinforcement Materials: A Comprehensive Overview of Composite Materials, Journal of Materials Research and Technology, (2019) 6354-6374.

DOI: 10.1016/j.jmrt.2019.09.068

[3] Srivastava, J.P. and P. Kumar, (2022) Introduction to Glass Fiber-Based Composites and Structures, in Natural and Synthetic Fiber Reinforced Composites: Synthesis, Properties and Applications

DOI: 10.1002/9783527832996.ch1

[4] Wambua, P., J. Ivens, and I. Verpoest, Natural Fibres: Can They Replace Glass in Fibre Reinforced Plastics?, Composites Science and Technology, (2003) 1259-1264.

DOI: 10.1016/s0266-3538(03)00096-4

[5] Keya, K.N., et al., Natural Fiber Reinforced Polymer Composites: History, Types, Advantages, and Applications, Materials Engineering Research, (2019) 69-87.

[6] Khalili, P., et al., Ramie Fabric Elium® Composites with Flame Retardant Coating: Flammability, Smoke, Viscoelastic and Mechanical Properties, Composites Part A: Applied Science and Manufacturing, (2020).

DOI: 10.1016/j.compositesa.2020.105986

[7] Venka teshwaran, N., A. Elaya Perumal, and R.H. Arwin Raj, Mechanical and Dynamic Mechanical Analysis of Woven Banana/Epoxy Composite, Journal of Polymers and the Environment, (2012) 565-572.

DOI: 10.1007/s10924-011-0410-5

[8] Sonar, T., et al., Natural Fiber Reinforced Polymer Composite Material-A Review, IOSR Journal of Mechanical and Civil Engineering (IOSR-JMCE), (2015).

[9] Kan, Z., et al., Investigation on The reactive Processing of Textile-Ramie Fiber Reinforced Anionic Polyamide-6 Composites, Composites Science and Technology, (2015) 188-195.

DOI: 10.1016/j.compscitech.2015.01.023

[10] Shi, H., et al., Manufacture and Performance of Textile-ramie Fiber Reinforced Anionic Polyamide 6 Composites, Fibers and Polymers, (2019) 1705-1715.

DOI: 10.1007/s12221-019-8968-y

[11] Ben Hamou, K., et al., Synergistic Association of Wood /Hemp Fibers Reinforcements on Mechanical, Physical and Thermal Properties of Polypropylene- Based Hybrid Composites, Industrial Crops and Products, (2023).

DOI: 10.1016/j.indcrop.2022.116052

[12] Khuntia, T. and S. Biswas, Mechanical, Viscoelastic, and Flammability Properties of Polymer Composites Reinforced with Novel Sirisha Bark Filler, Journal of Industrial Textiles, (2022) 5887S-5909S.

DOI: 10.1177/15280837221094220

[13] Lee, Y.A., et al., Hygroscopic Ramie Fabrics for Recovering Highly Viscous Low Sulfur Fuel Oil, Environmental Pollution, (2022).

DOI: 10.1016/j.envpol.2022.119668

[14] Suriaman, I., et al., The Effect of Alakli Treatment on Improving The Mechanical Properties of Ramie (Boehmeria Nivea), Sugar Palm (Arenga Pinnata), and Coir (Cocos Nucifera) Fibers, ASEAN Engineering Journal, (2021) 177-189.

DOI: 10.11113/aej.v11.17053

[15] He, L.P., Y. Tian, and L.L. Wang, Study on Ramie Fiber Reinforced Polypropylene Composites (RF-PP) and its Mechanical Properties, Advanced Materials Research, (2008) 313-316.

DOI: 10.4028/www.scientific.net/amr.41-42.313

[16] Sun, Y., et al., Effect of Alkali and Silane Treatments on Properties of Green Composites Based on Ramie Fibers and Cellulose Acetate Resin, Bio Resources, (2022) 2390-2402.

DOI: 10.15376/biores.17.2.2390-2402

[17] Lu, J.-J., et al., Enhanced Mechanical Properties of Ramie Fabric/Epoxy Composite Laminates by Silicon Polymer, Industrial Crops and Products, (2023).

DOI: 10.1016/j.indcrop.2023.116778

[18] Moudood, A., et al., Flax Fiber and Its Composites: An Overview of Water and Moisture Absorption Impact on Their Performance, Journal of Reinforced Plastics and Composites, (2018) 323-339.

DOI: 10.1177/0731684418818893

[19] Mwaikambo, L.Y. and M.P. Ansell, The Effect of Chemical Treatment on The Properties of Hemp, Sisal, Jute and Kapok for Composite Reinforcement, Die Angewandte Makromolekulare Chemie, (1999) 108-116.

DOI: 10.1002/(sici)1522-9505(19991201)272:1<108::aid-apmc108>3.3.co;2-0

[20] Mwaikambo, L.Y. and M.P. Ansell, Chemical Modification of Hemp, Sisal, Jute, and Kapok Fibers by Alkalization, Journal of Applied Polymer Science, (2002) 2222-2234.

DOI: 10.1002/app.10460

[21] Zulkipli, N.A., et al., Effect of Chemical Treatment on Mechanical and Morphological Properties of Sugarcane Bagasse Reinforced Unsaturated Polyester Composite, Key Engineering Materials, (2022) 26-32.

DOI: 10.4028/p-v94mv5