Journal
BRAZILIAN JOURNAL OF CHEMICAL ENGINEERING
Volume 34, Issue 1, Pages 253-261Publisher
BRAZILIAN SOC CHEMICAL ENG
DOI: 10.1590/0104-6632.20170341s20150418
Keywords
Electrospinning; Biopolymer; Physical characterization
Categories
Funding
- CNPq
- LASIPO
- Central of Analysis/EQA and LCME
- Federal University of Santa Catarina - UFSC
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The influence of the concentration, viscosity, electrical conductivity and Bloom index of gelatin solutions on the electrospinning process and the fibrous membrane formed was evaluated. Electrospun membranes were produced at different concentrations for three Bloom values (90, 250 and 280); the solutions were evaluated in terms of viscosity and electrical conductivity and the fibrous membranes by SEM and tensile tests. Results indicate that the electrospinning was most successful when the solution viscosity was within the range of 300 to 700 mPa.s, regardless of the type of gelatin used in the investigated conditions. The average fiber diameter increased with the increased solution viscosity and the relationship between them was well described by a linear equation. With regard to the mechanical properties, GeB250 and GeB280 fibrous membranes showed elongation, on average, at least ten times higher than that of GeB90 membranes.
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