Influence of fibre loading on the density, voids, dimensional resilience, tensile characteristics and thermomechanical behaviour of bamboo fibre and bio‐epoxy composites

Author:

Chandrasekar M.1,Senthilkumar K.2ORCID,Fouad Hassan3,Jawaid Mohammad45,Hashem Mohamed6,Ismail Ahmad Safwan5,Saba Naheed5,Khiari Ramzi7

Affiliation:

1. SIMCRASH Centre, Department of Aerospace Engineering Hindustan Institute of Technology and Science Chennai India

2. Department of Mechanical Engineering PSG Institute of Technology and Applied Research Coimbatore India

3. Applied Medical Science Department, Community College King Saud University Riyadh Saudi Arabia

4. Chemical and Petroleum Engineering Department, College of Engineering United Arab Emirates University (UAEU) Al Ain United Arab Emirates

5. Laboratory of Biocomposite Technology, Institute of Tropical Forestry and Forest Products (INTROP) Universiti Putra Malaysia Serdang Malaysia

6. Department of Dental Health, College of Applied Medical Science King Saud University Riyadh Saudi Arabia

7. University Grenoble Alpres, CNRS INP, LGP2 Grenoble France

Abstract

AbstractThis paper investigates the influence of bamboo fibre loadings (30, 40, 50 and 60 wt%) on the physical, tensile and dimensional behaviour of short‐bamboo‐fibre‐reinforced bio‐epoxy matrix composites. Water absorption, thickness swelling, density, void content, tensile and thermomechanical analysis were determined. The findings indicated that higher fibre loading led to elevated water absorption and increased thickness swelling in bamboo fibre composites. The order of thickness swelling and water absorption behaviour was bio‐epoxy < B‐30 < B‐40 < B‐50 < B‐60. Similarly, the measured density of composites increased with respect to fibre loading. However, the void content decreased when the fibre loading was >40 wt%. Concerning tensile characteristics, it was observed that all composite materials displayed lower tensile strength compared to the bio‐epoxy matrix. However, there was a notable enhancement in the elasticity of the composites. As an example, B‐60 exhibited the highest Young's modulus at 7.33 GPa. The analysis of the fracture behaviour of tension‐tested samples was conducted using images obtained from SEM. The coefficient of thermal expansion was increased drastically as fibre loading increased. This indicated that the dimensional change was higher. Thus, it is desirable to have lower fibre loading to obtain better dimensional stability under the influence of temperature. © 2023 Society of Industrial Chemistry.

Funder

King Saud University

Publisher

Wiley

Subject

Polymers and Plastics,Materials Chemistry,Organic Chemistry

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