Development of Hybrid Composite Materials Reinforced with Natural and Synthetic Fibers to Enhance the Structural Performance of Mechanical Components

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FORMOSA NEWS - Yogyakarta - New Hybrid Composite Material Combines Rattan and Glass Fibers for Superior Lightweight Strength. A recent study published in 2026 investigated the development of epoxy-based hybrid composites reinforced with a combination of natural rattan fibers and synthetic E-glass fibers. Conducted by researcher Aris Budianto at Politeknik ATK Yogyakarta, the research addresses the growing industrial demand for sustainable, high-strength, and lightweight materials used in mechanical components. By evaluating different fiber proportions while maintaining a controlled total fiber volume, the research demonstrates how material hybridization can significantly improve structural performance without sacrificing mass efficiency.

Background and Relevance

Modern mechanical engineering faces constant pressure to design components that offer high mechanical strength, low mass, and optimal material efficiency. Traditional polymer-based composites utilize synthetic fibers like glass to deliver exceptional load-bearing capacity, but they carry a heavy environmental footprint and higher density. Conversely, natural fibers such as rattan offer renewable sourcing and low density, yet their lower mechanical properties and moisture sensitivity traditionally restrict their use in high-demand structural applications. Combining natural and synthetic fibers creates a balanced solution that captures the mechanical advantages of synthetic materials while retaining the sustainability and weight-reduction benefits of natural resources.

Research Methodology
To determine the most effective material composition, the study utilized a quantitative comparative laboratory experiment. The researcher prepared 30 laminate units divided into five distinct groups of six specimens each, keeping the total fiber volume fraction constant at 30%. The groups evaluated included:

• Group A: Reinforced with 30% natural rattan fiber.
  
• Group B: Reinforced with 30% synthetic E-glass fiber.
  
• Group C: Rattan/E-glass hybrid with a 70:30 ratio (21% rattan, 9% E-glass).
  
• Group D: Rattan/E-glass hybrid with a 50:50 ratio (15% rattan, 15% E-glass).
  
• Group E: Rattan/E-glass hybrid with a 30:70 ratio (9% rattan, 21% E-glass).
  

All laminates were manufactured using the hand lay-up technique under controlled pressure and curing conditions. Testing procedures followed international standards, utilizing a Universal Testing Machine for tensile strength (ASTM D3039), a three-point bending configuration for flexural strength (ASTM D790), a pendulum impact tester for impact resistance (ASTM D256), and the Archimedes principle for density measurements. The resulting data were evaluated using descriptive statistics, Shapiro-Wilk normality tests, Levene homogeneity tests, One-Way ANOVA, and Tukey HSD post-hoc analysis.

Key Findings
The laboratory experiments revealed clear performance distinctions across the tested configurations:

• Optimal Mechanical Performance: The 50:50 hybrid configuration (Group D) achieved the highest overall mechanical values across all tested parameters.
  
• Tensile Strength: Group D reached an average tensile strength of 113.65 MPa, representing a 20.07% increase compared to single synthetic E-glass composites and a 90.63% increase over single rattan composites.
  
• Flexural Strength: Bending strength peaked at 150.83 MPa for the 50:50 hybrid group, outperforming single synthetic composites by 18.10%.
  
• Impact Resistance: Impact strength reached 33.78 kJ/m² in the 50:50 hybrid group, marking a 26.14% improvement over pure synthetic fiber composites.
  
• Mass Efficiency and Density: While single synthetic E-glass composites recorded the highest density at 1.418 g/cm³, the 50:50 hybrid maintained a lower density of 1.328 g/cm³ making it 6.35% lighter while delivering superior mechanical strength.
  
• Statistical Significance: One-Way ANOVA confirmed that fiber composition significantly influenced all measured parameters ($p < 0.001$), with effect size values exceeding 0.99.
  

Real-World Implications and Industry Impact
The findings offer vital applications for industries seeking sustainable manufacturing alternatives, particularly in the automotive and machinery sectors. By successfully substituting a portion of heavy synthetic glass fibers with renewable natural rattan without compromising structural integrity, manufacturers can produce lighter structural panels, housings, and automotive components. This approach reduces material weight, lowers production environmental footprints, and improves overall energy efficiency without sacrificing mechanical reliability.

Author Profile
Aris Budianto, S.T. in Engineering, M.Eng. Affiliation: ATK Polytechnic, Yogyakarta. Areas of Expertise: Materials Engineering, Natural Fiber Composites, and Manufacturing Engineering

Source
Aris Budianto: Development of Hybrid Composite Materials Reinforced with Natural and Synthetic Fibers to Enhance the Structural Performance of Mechanical Components. Formosa Journal of Sustainable Research (FJSR). Vol. 5, No. 9, hal. 789-806
DOI: https://doi.org/10.55927/fjsr.v5i9.63
URL: https://journalfjsr.my.id/index.php/fjsr