Processing and characterization of a polypropylene biocomposite compounded with maleated and acrylated compatibilizers

Article

Nerenz, Brent A., Fuqua, Michael A., Chevali, Venkata S. and Ulven, Chad A.. 2012. "Processing and characterization of a polypropylene biocomposite compounded with maleated and acrylated compatibilizers." International Journal of Polymer Science. 2012, pp. 1-7. https://doi.org/10.1155/2012/472078
Article Title

Processing and characterization of a polypropylene biocomposite compounded with maleated and acrylated compatibilizers

ERA Journal ID200795
Article CategoryArticle
AuthorsNerenz, Brent A. (Author), Fuqua, Michael A. (Author), Chevali, Venkata S. (Author) and Ulven, Chad A. (Author)
Journal TitleInternational Journal of Polymer Science
Journal Citation2012, pp. 1-7
Article Number472078
Number of Pages7
Year2012
PublisherHindawi Publishing Corporation
Place of PublicationUnited States
ISSN1687-9422
1687-9430
Digital Object Identifier (DOI)https://doi.org/10.1155/2012/472078
Web Address (URL)http://www.hindawi.com/journals/ijps/2012/472078/
Abstract

Polypropylene (PP) biocomposites containing 20 wt.% sunflower hull as a particulate reinforcement were compounded and tested under tensile, flexural, and impact loadings. The incorporation of the sunflower hull without compatibilizer resulted in diminished tensile strength and impact energy absorption but increased flexural strength and both tensile modulus and flexural modulus when compared to neat PP. Formulations containing three different chemical compatibilizers were tested to determine their effectiveness in improving the interfacial adhesion between the fiber surface and PP chains. Maleic anhydride grafted with PP (MA-g-PP) achieved greater improvements in tensile strength but reduced impact strength in comparison to an acrylic-acid-grafted PP compatibilizer (AA-g-PP). The molecular weight, graft level, and the ability to affect strength, modulus, and absorbed impact energy were also investigated for the compatibilizers. A MA-g-PP having high molecular weight and low graft level was most effective in improving the investigated properties of a sunflower hull-reinforced polypropylene biocomposite.

Keywordsfilled PP composites; mechanical-properties; coupling agents; fiber; adhesion
ANZSRC Field of Research 2020401602. Composite and hybrid materials
401609. Polymers and plastics
Byline AffiliationsNorth Dakota State University, United States
Institution of OriginUniversity of Southern Queensland
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