4.4 Article

Studies on single polymer composites of poly(methyl methacrylate) reinforced with electrospun nanofibers with a focus on their dynamic mechanical properties

Journal

EXPRESS POLYMER LETTERS
Volume 5, Issue 7, Pages 635-642

Publisher

BUDAPEST UNIV TECHNOL & ECON
DOI: 10.3144/expresspolymlett.2011.61

Keywords

nanomaterials; electrospinning; poly(methyl methacrylate); single polymer composites

Funding

  1. Council for Scientific and Industrial Research of South Africa

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The dynamic mechanical properties of single polymer composites of poly(methyl methacrylate) (PMMA) reinforced with electrospun PMMA nanofibers of different diameters are reported. The effect of electrospinning parameters on the morphology and diameters of the electrospun high molecular weight PMMA was investigated in order to obtain suitable diameters for the reinforcing fibers. Scanning electron microscopy (SEM) was used to study the morphology and diameters of the nanofibers produced at different electrospinning conditions. It was found that polymer solution concentration influences the diameter of the electrospun nanofibers more than the spinning voltage and spinning distance. SEM analysis of the PMMA nanofibers showed that the fibers had a smooth, regular and cylindrical morphology with no beads and junctions. Effects of the processing temperature for the preparation of the single polymer composites via film stacking were investigated. Dynamic mechanical analysis showed a pronounced improvement in the storage modulus of the composites compared to the matrix.

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