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Mechanical and Thermal Characteristics of Optimized Electrospun Nylon 6,6 Nanofibers by Using Taguchi Method

Saleh S. Abdelhady

Department of Mechanical Engineering, Higher Technological Institute, 10th of Ramadan City, Egypt, P. O. Box: 228, Egypt

E-mail Address: salehgaballa@hotmail.com

Corresponding author.

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Said H. Zoalfakar

Department of Mechanical Engineering, Higher Technological Institute, 10th of Ramadan City, Egypt, P. O. Box: 228, Egypt

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Department of Mechanical Design and Production Engineering, Faculty of Engineering, Zagazig University, Egypt, P. O. Box: 44519, Egypt

Mechanical Engineering Department, College of Engineering, Shaqra University, Dawadmi, Saudi Arabia

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Department of Mechanical Design and Production Engineering, Faculty of Engineering, Zagazig University, Egypt, P. O. Box: 44519, Egypt

Industrial Engineering Department, College of Engineering, University of Bisha, Kingdom of Saudi Arabia, P. O. Box: 551:61922, Kingdom of Saudi Arabia

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https://doi.org/10.1142/S179329201950139XCited by:7 (Source: Crossref)

Abstract

This study is an attempt to optimize the electrospinning process to produce minimum Nylon 6,6 nanofibers by using Taguchi statistical technique. Nylon 6,6 solutions were prepared in a mixture of formic acid (FA) and Dichloromethane (DCM). Design of experiment by using Taguchi statistical technique was applied to determine the most important processing parameters influence on average fiber diameter of Nylon 6,6 nanofiber produced by electrospinning process. The effects of solvent/nylon and FA/DCM ratio on average fiber diameter were investigated. Optimal electrospinning conditions were determined by using the signal-to-noise (S/N) ratio that was calculated from the electrospun Nylon 6,6 nanofibers diameters according to “the-smaller-the-better” approach. The optimum Nylon 6,6 concentration (NY%) and FA/DCM ratio were determined. The morphology of electrospun nanofibers is significantly altered by FA/DCM solvent ratio as well as Nylon 6,6 concentration. The smallest diameter and the narrowest diameter distribution of Nylon 6,6 nanofibers ( $166 \pm 33$ nm) were obtained for 10 wt% Nylon 6,6 solution in 80 wt% FA and 20 wt% DCM. An increase of 118%, 280% and 26% in tensile strength, modulus of elasticity and elongation at break over as-cast was obtained, respectively. Glass transition temperature of Nylon 6,6 nanofibers were determined by using differential scanning calorimeter (DSC). Analysis of variance ANOVA shows that NY% is the most influential parameter.

Keywords:

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Vol. 14, No. 11

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Received 23 July 2019

Accepted 11 September 2019

Published: 6 November 2019

Keywords