Design of Experiment Approach for Fabrication Process of Electrospun Shellac Nanofibers Using Factorial Designs

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Research Article: Design of Experiment Approach for Fabrication Process of Electrospun Shellac Nanofibers Using Factorial Designs
ผู้เขียน|Author: Nawinda Chinatangkul, Sirikarn Pengon, Chutima Limmatvapirat, Sontaya Limmatvapirat
Email: nawinda.chi@siam.edu
Department|Faculty: Faculty of Pharmacy,  Siam University, Bangkok 10160
Published|แหล่งเผยแพร่: Key Engineering Materials (Volume 757), 120-124.

Citation

Nawinda Chinatangkul, Sirikarn Pengon, Chutima Limmatvapirat & Sontaya Limmatvapirat. (2017). Design of Experiment Approach for Fabrication Process of Electrospun Shellac Nanofibers Using Factorial Designs. Key Engineering Materials, 757, 120-124. https://doi.org/10.4028/www.scientific.net/KEM.757.120


ABSTRACT

Electrospun shellac nanofibers might be potentially used for wound dressing application due to its natural origin and excellent protective properties. In this study, a full factorial design with three replicated center points was performed in order to investigate the main and interaction effects of shellac content (35-40% w/w), applied voltage (9-27 kV) and flow rate (0.4-1.2 mL/hr) on the morphology of shellac nanofibers. A total of 11 experiments were conducted. The response variables were the diameter of nanofibers, the distribution of diameter and the amount of beads. The results showed that the concentration of shellac was the most significant impact on shellac nanofiber diameter, while applied voltage, interaction between shellac content and voltage, and feed rate were minor factors, respectively. Shellac content and applied voltage had negative relationships with bead amount. When reducing the concentration of shellac and voltage, the amount of beads was increased. However, the influence of these parameters on diameter distribution seemed to be not significant. Based on response surface plot, nanofibers with thinner diameter (~493 nm) and less number of beads (~0.47) could be obtained at the optimum conditions; the shellac content of 38.5% w/w, the voltage of 21 kV and the feed rate of 0.4 mL/hr.

Keyword: shellac, electrospun nanofibers, factorial design. wound dressing.


Design of Experiment Approach for Fabrication Process of Electrospun Shellac Nanofibers Using Factorial Designs

Faculty of Pharmacy, Siam University, Bangkok, Thailand

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