The structure of fibers produced by colloid-electrospinning depends on the aggregation state of particles in the electrospinning feed

Colloid-electrospinning is a technique widely used to immobilize nanoparticles in nanofibers. Such hierarchical structures are advantageous because they benefit from the properties of both nanoparticles and nanofibers. Controlling the aggregation state of nanoparticles in nanofibers is essential for...

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Bibliographic Details
Published in:Polymer (Guilford) 2017-10, Vol.127, p.101-105
Main Authors: Jiang, Shuai, He, Wei, Landfester, Katharina, Crespy, Daniel, Mylon, Steven E.
Format: Article
Language:English
Subjects:
Agglomeration
Aggregation
Colloid-electrospinning
Dispersion
Electrospinning
Fibers
Nanofibers
Nanoparticles
Spinning
Spinning (materials)
Structural hierarchy
Studies
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Summary:Colloid-electrospinning is a technique widely used to immobilize nanoparticles in nanofibers. Such hierarchical structures are advantageous because they benefit from the properties of both nanoparticles and nanofibers. Controlling the aggregation state of nanoparticles in nanofibers is essential for the properties of the resulting materials. We investigate here the relationship between the aggregation state of nanoparticles in dispersion before spinning and in electrospun nanofibers. The aggregation state of nanoparticles in nanofibers was found to depend on the aggregation state of the nanoparticles in dispersion. [Display omitted] •Electrospinning of nanoparticles dispersed in a hydrophilic polymer.•DLS and electron microscopy investigations of dispersions and nanofibers.•Dispersion of particles in fibers depends on electrospinning conditions, polymer Mw and concentration, and particles concentration.
ISSN:0032-3861
1873-2291
DOI:10.1016/j.polymer.2017.08.061