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Please use this identifier to cite or link to this item: http://hdl.handle.net/10204/5733

Title: Kenaf fiber-reinforced copolyester biocomposites
Authors: Mokhothu, TH
Guduri, BR
Luyt, AS
Keywords: Bio-composites
Aliphatic-aromatic co-polyester
Kenaf fiber
Thermal properties
Tensile properties
Biodegradability properties
Issue Date: Dec-2011
Publisher: Wiley
Citation: Mokhothu, TH, Guduri, BR and Luyt, AS. 2011. Kenaf fiber-reinforced copolyester biocomposites. Polymer Composites, vol. 32(12), pp 2001-2009
Series/Report no.: Workflow;7931
Abstract: In this study the morphology and properties of a biodegradable aliphatic–aromatic copolyester mixed with kenaf fiber were investigated. Untreated kenaf fiber, as well as kenaf fiber treated with NaOH, and with NaOH followed by silane coupling agent treatment at various concentrations, were used as fillers in the composites. The biocomposites were prepared by melt-mixing and a 10 wt% fiber loading was used for all the composites. The properties of the biocomposites were characterized using differential scanning calorimetry (DSC), thermogravimetric analysis (TGA), dynamic mechanical analysis (DMA), tensile properties, environmental scanning electron microscopy (ESEM), and biodegradability. The extent of silane initiated grafting was followed by gel content determination. The presence of fiber and fiber treatment influenced the determined properties in a variety of ways, but the best balance of properties were found for the copolyester mixed with alkali-treated fiber. This composite showed improved thermal, thermomechanical, and mechanical properties. The introduction of alkali treatment caused increased surface roughness in the fiber, which resulted in mechanical interlocking between the filler and the matrix, while silane treatment slightly reduced the properties.
Description: Copyright: 2011 Wiley. This is an ABSTRACT ONLY.
URI: http://onlinelibrary.wiley.com/doi/10.1002/pc.21233/full
ISSN: 0272-8397
Appears in Collections:Polymers and composites
General science, engineering & technology

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