Optimization of mechanical properties of recycled polyurethane waste microfiller epoxy composites using grey relational analysis and taguchi method

Authors

DOI:

https://doi.org/10.15587/1729-4061.2022.252719

Keywords:

recycling polyurethane/clamshell waste, mechanical properties, thermal conductivity, Taguchi method

Abstract

Mechanical properties and thermal conductivity of epoxy composites reinforced with recycled clamshell container waste as a micro filler (RCCF) were studied. The studies have been carried out to identify the influence of the two variables, the heating time periods (HT) within the range of 2, 4, 6 min., and wt % within the range of 1 %, 2 %, 4 % of recycled clamshell container waste that has been used as a reinforcing filler of epoxy composites. Recycling polyurethane waste aims to control and maintain a pollution-free environment, which is currently considered a difficult issue in addition to achieving low-cost aspects in preparing the composites. According to the method of no-combustion heating, the clamshell waste was converted from the natural plastic state into solids that were later made into 75 μm micro filler by grinding. Composites were ranked using grey relational analysis (GRA). The effect of each control parameter on response variables was analyzed by the Taguchi method. Using MINITAB 19 software, regression equations were obtained for each variable of mechanical properties and thermal conductivity to predict the properties of epoxy composites. The results of the addition of recycled clamshell container waste to epoxy resin show an improvement in the mechanical properties and thermal conductivity of the composites. The optimal value of the two factors was at HT2wt2, i.e. HT and wt % of 4 min and 2 %, respectively. The optimization values for the bending strength, impact strength, tensile strength, stiffness and thermal conductivity are 68.2 MPa, 10.348 kJ/m2, 21.08 MPa, 80 Shore D and 0.504 W/m·C°, respectively. The proposed Taguchi methodology based on grey relational analysis has been shown to be effective in solving multi-feature decision-making problems.

Supporting Agency

  • The authors are grateful to the management of Middle Technical University-Baghdad-Iraq for the supporting in research.

Author Biographies

Salwa A. Abed, Middle Technical University

Doctor of Mechanical Engineering, Assistent Professor

Department of Mechanical Engineering

Ahmad A. Khalaf, Middle Technical University

Master in Mechanical Engineering, Lecturer

Department of Mechanical Engineering

Hayder Mohammed Mnati, Middle Technical University

Master in Mechanical Engineering, Lecturer

Department of Mechanical Engineering

Muammel M. Hanon, MATE University, Szent Istvan Campus

PhD Candidate, Lecturer

Mechanical Engineering Doctoral School

References

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Published

2022-02-27

How to Cite

Abed, S. A., Khalaf, A. A., Mnati, H. M., & Hanon, M. M. (2022). Optimization of mechanical properties of recycled polyurethane waste microfiller epoxy composites using grey relational analysis and taguchi method. Eastern-European Journal of Enterprise Technologies, 1(12(115), 48–58. https://doi.org/10.15587/1729-4061.2022.252719

Issue

Vol. 1 No. 12(115) (2022): Materials Science

Section

Materials Science

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Copyright (c) 2022 Salwa A. Abed, Ahmad A. Khalaf, Hayder Mohammed Mnati, Muammel M. Hanon

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