Effect of blend ratio on the fiber diameter of electrospun polycaprolactone and polyethylene oxide blend fibers
Date
2011
Degree
Bachelor of Science in Applied Physics
College
College of Arts and Sciences (CAS)
Adviser/Committee Chair
Lou Serafin M. Lozada
Co-adviser
Juzzel Ian Zerrudo
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Abstract
The effect of blend ratio on the fiber diameter of electrospun polycaprolactone and polyethylene oxide blend fibers was investigated in this study. Different mass ratios (50/50, 40/60, 30/70, 20/80, and 10/90) of polycaprolactone (PCL) and polyethylene oxide (PEO) blend were drawn into fibers via electrospinning. All PCL/PEO blends were dissolved in dichloromethane (DCM) and electrospun using a 17 kV applied voltage, 10 cm tip-to-collector distance, 1.0 mL/hr flow rate, and 0.90 mm needle size. The mean diameters of the electrospun fibers, measured using the electron micrograph, became larger for larger PCL relative amount (for example, 9.62 um for 50/50 PCL/PEO blend ratio, 5.07μm for 60/40, etc.). The viscosity was also higher for higher ratio of PCL/PEO. Accordingly, the mean fiber diameter was higher for more viscous blends. Fourier Transform Infrared (FTIR) spectroscopy was also performed on the samples. The resulting spectrum indicated that the PCL/PEO blend did not react to form a new compound. In other words, the blend was stable. However, the intensity of the peak corresponding to the C=O bond was weaker for lower PCL relative amount.
Language
English
Location
UPLB Main Library Special Collections Section (USCS)
Recommended Citation
Quimbo, Glenn Ian T., "Effect of blend ratio on the fiber diameter of electrospun polycaprolactone and polyethylene oxide blend fibers" (2011). Undergraduate Theses. 2362.
https://www.ukdr.uplb.edu.ph/etd-undergrad/2362
Document Type
Thesis