Effects of electrospinning process parameters on the morphology of nanofibers from Bambusa Blumcana J.A & J.H. Schultes cellulose acetate.

Date

2013

Degree

Bachelor of Science in Chemical Engineering

College

College of Engineering and Agro-Industrial Technology (CEAT)

Restrictions

Restricted: Not available to the general public. Access is available only after consultation with author/thesis adviser and only to those bound by the confidentiality agreement.

Abstract

This study investigated the effects of processing parameters on the fiber morphology of electrospun cellulose acetate from Bambusa blumeana J. A. and J. H. Schultes. Pulp was produced using soda pulping at 20% chemical charge at 7:1 liquor- to-fiber ratio. Cellulose acetate was produced from the alpha-cellulose of bamboo. The cellulose acetate was characterized using FTIR spectroscopy and the degree of substitution. Electrospinning process was employed in obtaining cellulose acetate nanofibers. Electrospinning was done using acetic acid-acetone and dichloromethane- methanol as solvent.The solvent ratio, tip-to-collector distance and the flowrate were varied to obtain uniform and smooth fibers. Solution concentration and voltage supply were held constant at 10% w/v and kV respectively. The electrospun nanofiber was characterized under an optical microscope. The effect of the processing parameters on the morohology of the electrospun fiber was observed. Cellulose acetate dissolved in dichloromethane-methanol showed the best result. More uniform fibers fewer beads were obtained 6:4 v/v dichloromethane-methanol solvent ratio, 10% w/v solution concentration, 10cm distance, 20kV voltage supply, and 25mL/hr flowrate.

Language

English

Location

UPLB Main Library Special Collections Section (USCS)

Call Number

Thesis

Document Type

Thesis

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