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The use of novel digital image analysis technique and rheological tools to characterize nanofiber nonwovens

Authors
Journal
Polymer Testing
0142-9418
Publisher
Elsevier
Publication Date
Volume
29
Issue
1
Identifiers
DOI: 10.1016/j.polymertesting.2009.09.008
Keywords
  • Nanofiber Nonwovens
  • Electrospinning
  • Mechanical Properties
  • Digital Image Analysis

Abstract

Abstract Polyurethane (PU) solved in dimethylformamide (DMF) was electrospun under one set of conditions using five different supporting textiles. The mechanical properties of the nanofiber mats were measured by the Sentmanat extensional rheometer, and the pore size distribution was calculated by a newly proposed digital image analysis methodology applied on nanoscale SEM images taking macroscopic features of the nonwovens into account. It has been found that supporting textiles have a very high effect on mechanical properties of nanofiber mats (even if their fiber diameter distributions are similar), which can be explained by different porosity of the prepared samples.

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