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Information Seminar Paper

Title

INVESTIGATION THE EFFECT OF FLOW RATE RATIO ON DIAMETER OF CORE/SHELL ELECTROSPUN FIBERS

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Abstract

 IN THIS STUDY, THE EFFECT OF FLOW RATE RATIO ON DIAMETER OF CORE/SHELL ELECTROSPUN FIBERS WAS INVESTIGATED. THE CORE/SHELL FIBERS WERE MADE BY 12% (W/V) POLYCAPROLACTONE (PCL) IN CHLOROFORM AND DMF (9:1 IN VOLUME) AS CORE SOLUTION AND, 8 AND 12% (W/V) POLYVINYLALCOHOL (PVA) IN WATER AS SHELL SOLUTION. THE STRUCTURE AND MORPHOLOGY OF FIBERS WERE EVALUATED UNDER A FIELD EMISSION SCANNING ELECTRON MICROSCOPY (FESEM) AND THE EFFECT OF FLOW RATE RATIO ON THE FORMATION OF FIBERS WERE EXAMINED. THREE FLOW RATE RATIOS OF 1, 1.7 AND 2.5 WERE EVALUATED. THE FESEM MICROGRAPHS SHOWED THE OVERALL DIAMETER OF ELECTROSPUN FIBERS DECREASED WITH INCREASING THE FLOW RATE RATIO. ALSO THE CONDUCTIVITY AND SHEAR VISCOSITY OF SOLUTIONS ARE REPORTED. AS A RESULT, THE 12% PVA SOLUTION HAS HIGHER VISCOSITY AND CONDUCTIVITY COMPARED WITH PCL SOLUTION.

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