News Column

Reports Outline Polymer Research Study Findings from University of Akron

June 3, 2014

By a News Reporter-Staff News Editor at Journal of Technology -- Current study results on Polymer Research have been published. According to news reporting originating from Akron, Ohio, by VerticalNews correspondents, research stated, "Composites of polypropylene (PP) filled with multiwalled carbon nanotubes (CNTs) of various concentrations were prepared by a twin screw extruder using direct compounding (DC) method without and with ultrasonic treatment. In addition, a masterbatch of 20 wt% PP/CNT composites were prepared without and with ultrasonic treatment and diluted to the same concentrations as in the DC method without ultrasonic treatment."

Our news editors obtained a quote from the research from the University of Akron, "This is called the masterbatch dilution (MD) method. The rheological, electrical and mechanical properties were investigated. The microdispersion was determined using optical microscopy to correlate the processing, properties and structure. It was shown that the MD method provided better dispersion of CNT in PP matrix than the DC method. This was indicated by an increase of the storage modulus, viscosity, electrical and mechanical properties. The fractal dimension of CNTs, D, and the backbone fractal dimension, x, of the CNT network were determined by fitting the rheological data to the scaling model. The lower fractal dimension of CNT and higher backbone fractal dimension of CNT network in composites prepared by the MD method compared with composites obtained by the DC method indicated a better dispersion."

According to the news editors, the research concluded: "Additionally, a lower D and a higher x values as well as the favorable effect on the morphology and mechanical properties were achieved when the ultrasonic treatment at an amplitude of 13 mu m was applied in the MD method, indicating an advantage in use of the ultrasonic treatment in preparing the PP/CNT masterbatch."

For more information on this research see: Influence of ultrasonic treatment in PP/CNT composites using masterbatch dilution method. Polymer, 2014;55(7):1745-1755. Polymer can be contacted at: Elsevier Sci Ltd, The Boulevard, Langford Lane, Kidlington, Oxford OX5 1GB, Oxon, England. (Elsevier -; Polymer -

The news editors report that additional information may be obtained by contacting J. Zhong, Univ Akron, Dept. of Polymer Engn, Akron, OH 44325, United States. Additional authors for this research include A.I. Isayev and K.Y. Huang.

Keywords for this news article include: Ohio, Akron, United States, Polymer Research, North and Central America

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Source: Journal of Technology

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