The effect of nanoclay on photo-oxidation of polyethylene

Kumanayaka, T, Parthasarathy, R and Jollands, M 2009, 'The effect of nanoclay on photo-oxidation of polyethylene', in Prof. Jamal Chaouki (ed.) Proceedings of the 8th World Congress of Chemical Engineering (WCCE8), Montreal, Canada, 23-27 Aug 2009, pp. 1-6.


Document type: Conference Paper
Collection: Conference Papers

Title The effect of nanoclay on photo-oxidation of polyethylene
Author(s) Kumanayaka, T
Parthasarathy, R
Jollands, M
Year 2009
Conference name 8th World ConQress of Chemical EnQineerinQ (WCCE8)
Conference location Montreal, Canada
Conference dates 23-27 Aug 2009
Proceedings title Proceedings of the 8th World Congress of Chemical Engineering (WCCE8)
Editor(s) Prof. Jamal Chaouki
Publisher Canadian Society for Chemical Engineering
Place of publication Montreal, Canada
Start page 1
End page 6
Total pages 6
Abstract Increasing environmental concerns about plastic waste in the community has led to the development of environmental friendly polymeric packaging materials. Polyethylene, one of the widely used packaging materials, can be made biodegradable by blending with biopolymers such as starch and/or pro-oxidants which are metal complexes (e.g. cobalt stearate, cerium stearate). Recent studies on polyethylene degradation have found that addition of nanoclay, which is used as filler in polymer composites mainly to enhance their mechanical properties, also increases their photo-oxidative degradation. The present study investigates the photo-degradation of low density polyethylene (LDPE) formulated with nanoclay and evaluates the effect of nanoclay concentration on the overall photo-oxidation process. Photo-oxidative aging of polyethylene and its nanocomposites were carried out in a QUV weathering tester for a maximum period of two weeks. The degradation progress was followed by monitoring the physical and chemical changes of the samples using tensile tests, Fourier transform infrared spectroscopy (FTIR) and gel permeation chromatography (GPC). The results indicate that the incorporation of nanoclay significantly enhances the degradation of polyethylene.
Subjects Nanomaterials
Keyword(s) Polyethylene
photo-oxidation
nanocomposites
UV irradiation
FTIR
GPC
ISBN 0920804446
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