The effect of adding natural materials waste on the mechanical properties and water absorption of epoxy composite using grey relations analysis

Keywords: epoxy composite, natural material micro-filler, Mechanical properties, Water absorption, GRG


Recently, there has been a tendency for scientific studies to deal with natural materials as fillers and reinforcement for polymer composites, which are used in many different applications due to their environmentally friendly properties when compared to synthetic materials. The current study aims to preserve the environment by dealing with natural materials and their influence on the mechanical properties and water absorption property of the polymer composites. In this study, epoxy composites were produced from local natural sourced non-hazardous raw natural materials using grey relational analysis (GRG). The materials used for fabrication include micro-filler of pollen palm 50 μm, seashell 75 μm and epoxy resin. Nine different composites were prepared using pollen palm and seashell as reinforcement material by varying the wt % of the micro-filler. Rule of the mixture was used for formulation and wt % of (0.5, 1 and 1.5) % reinforcement and 99.5, 99 and 98.5 % epoxy (binder) were used for composites. Grey relational analysis was conducted in order to scale the multi-response performance to a single response. The results indicate that optimum performance can be achieved with the addition of 1.5 wt % micro-filler of seashell, which achieved the first rank, while the second rank achieved by 0.5 wt % micro-filler of palm pollen and seashell when compared to other composites. The addition of micro-fillers has improved greatly the mechanical properties of epoxy composites. The loading of micro-fillers has influenced the water absorption property of composites based epoxy in ascending order


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Author Biographies

Ahmad A. Khalaf, Middle Technical University

Department of Mechanical

Baquba Technical Institute

Salwa A. Abed, Middle Technical University

Department of Mechanical

Baquba Technical Institute

Saad Sami Alkhfaji, Ashur University College

Department of Medical Instrumentation Engineering

Mudhar A. Al-Obaidi, Middle Technical University

Department of Computer Science

Baquba Technical Institute

Muammel M. Hanon, Hungarian University of Agriculture and Life Sciences (MATE)

Mechanical Engineering Doctoral School


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How to Cite
Khalaf, A. A., Abed, S. A., Alkhfaji, S. S., Al-Obaidi, M. A., & Hanon, M. M. (2022). The effect of adding natural materials waste on the mechanical properties and water absorption of epoxy composite using grey relations analysis. EUREKA: Physics and Engineering, (1), 131-142.
Material Science