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Accelerated Weathering of Modified Wood Flour Plastic Composites

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Abstract:

The effect of accelerated weathering on the chemical and color of wood plastic composites (WPC) made from modified pine wood fiber (control, extractives free and holocellulose) was investigated. WPC were produced from the various wood fibers (60%, weight) and high density polyethylene (40%, weight) as matrix were subjected to accelerated weathering in xenon-arc weatherometer for up to 1200 hours. This study aimed at getting a better understanding of the chemical changes that occur to weathered WPC relative to its material compositions (wood and plastic). Chemical analyses and color measurement of the weathered surface using Fourier transform infrared (FTIR) spectroscopy, pyrolysis gas chromatograph mass spectrometry and colorimetery showed that degradation of WPC had occurred, causing color changes. It was observed that WPC made from holocellulose wood fiber had the lowest color change compared to extractives free wood and control wood fiber based WPC.

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Periodical:

Advanced Materials Research (Volumes 29-30)

Pages:

315-318

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.29-30.315

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Online since:

November 2007

Authors:

J.S. Fabiyi, A.G. McDonald

Keywords:

Accelerated Weathering, Color, Degradation, Wood Plastic Composite (WPC)

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© 2007 Trans Tech Publications Ltd. All Rights Reserved

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