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

Nerenz, Brent A. and Fuqua, Michael A. and 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 (Article 472078). pp. 1-7. ISSN 1687-9422

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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.


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Item Type: Article (Commonwealth Reporting Category C)
Refereed: Yes
Item Status: Live Archive
Additional Information: Published version made available in accordance with Creative Commons Attribution License 3.0.
Faculty / Department / School: Current - Institute for Agriculture and the Environment
Date Deposited: 18 Aug 2016 02:50
Last Modified: 06 Feb 2017 03:45
Fields of Research : 09 Engineering > 0912 Materials Engineering > 091202 Composite and Hybrid Materials
09 Engineering > 0912 Materials Engineering > 091209 Polymers and Plastics
Socio-Economic Objective: B Economic Development > 82 Plant Production and Plant Primary Products > 8203 Industrial Crops > 820399 Industrial Crops not elsewhere classified
B Economic Development > 86 Manufacturing > 8606 Industrial Chemicals and Related Products > 860607 Plastic Products (incl. Construction Materials)
Identification Number or DOI: 10.1155/2012/472078
URI: http://eprints.usq.edu.au/id/eprint/28684

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