Waste and Biomass Valorization

, Volume 4, Issue 1, pp 65–71 | Cite as

Effects of Micronized Rubber Powders on Structure and Properties of Polypropylene Composites

  • Ravi Ayyer
  • Tom Rosenmayer
  • William Schreiber
  • Jonathan Colton
Original Paper


This investigation focuses on understanding the effects of particle size and surface area of cryogenically-ground micronized rubber powders (MRP) on the properties of MRP/polypropylene (PP) composites. Comparisons are made with ambient-ground rubber powders and its PP composites. The morphology of the fracture surfaces of the composites is studied in relation to the effects of particle size on mechanical properties. In addition, this paper discusses utilizing a compatibilizer with MRP in improving the mechanical performance of the PP composites for its use in various market segments, such as automotive, consumer and, construction.


Micronized rubber powders (MRPs) Cryogenic ground rubber Ambient ground rubber Polypropylene PP/rubber composites Compatibilizer 



The support of National Science Foundation SBIR Phase-I Award # IIP 1013373 for the characterization portion of this project is gratefully appreciated.


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Copyright information

© Springer Science+Business Media Dordrecht 2012

Authors and Affiliations

  • Ravi Ayyer
    • 1
  • Tom Rosenmayer
    • 1
  • William Schreiber
    • 1
  • Jonathan Colton
    • 2
  1. 1.Applications and Development CenterLehigh TechnologiesTuckerUSA
  2. 2.School of Mechanical EngineeringGeorgia Institute of TechnologyAtlantaUSA

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