Effect of blend ratio on the fiber diameter of electrospun polycaprolactone and polyethylene oxide blend fibers.

Date

4-2011

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 B. Zerrudo

Abstract

The effect of blend ratio on the fiber diameter of electrospun polycaprolactone and polyethylene, lore 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 Pt '1./PLO blends were dissolved in dichloromethane (DCM) and electrospun using a 17 kV applied voltage, 10 cm tip-to-collector distance, 1.0 m/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 tier 50/50 PCUPEO blend ratio. 5.07mm for 60/40, etc.). The viscosity was also higher for higher ratio of PCIJPEO. 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=0 bond was weaker for lower PCL relative amount.

Language

English

Location

UPLB Main Library Special Collections Section (USCS)

Call Number

Thesis

Document Type

Thesis

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