Effects of variation of distance between needle tip and collector on the fabrication of polyaniline (PANI)-polyvinyl chloride (PVC) blend nanofibers via electrospinning

Date

4-2009

Degree

Bachelor of Science in Applied Physics

College

College of Arts and Sciences (CAS)

Adviser/Committee Chair

Marvin U. Herrera

Co-adviser

Emmanuel A. Florido

Abstract

Fabrication of Polyaniline (PANi)-Polyvinyl Chloride (PVC) nanabers was done using electrospinning method. PANi was blended with PVC in a 66.67%-33.33% (PANi-PVC) solution ratio. The distance between the needle tip and collector was varied from 4 to 18 cm with 2cm increment. Results show that as the distance between the needle-tip and collector increases the diameter of the fiber decreases both for PANi-ES-PVC and PANi-EB-PVC, with correlation value r equal to —0.906 and —0.919, respectively. These indicate a strong relationship between the distance of needle tip to collector and the diameter of the fibers. The working distance that yields the smallest fiber diameter of 212.8 + 7.5% nm is 16cm. At 18 cm the fiber diameter increases again suggesting that the distance between the needle-tip and collector has a limiting value. Further increase of the tip to collector distance yields an unspinnable polymer solution. It has also been found that a more conductive solution yields smaller fibers and has a larger fiber mesh diameter. The fiber mesh diameter has been found to be linearly dependent on the distance of the needle tip and the collector.

Language

English

Location

UPLB Main Library Special Collections Section (USCS)

Call Number

Thesis

Document Type

Thesis

This document is currently not available here.

Share

COinS