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Water absorption and tensile properties of soil buried kenaf fibre reinforced
unsaturated polyester composites (KFRUPC)
Received 27 June 2009, accepted 30 September 2009.
Abstract
The growing of global environmental concern, high rate of depletion of petroleum resources, as well as new environmental regulations have forced the
search for new fibre reinforced composite materials that are compatible with the environment. Biodegradable composite has been the driving force of
the use of bio-composites consisting of biodegradable plastics and natural fibres. However, in this study, only the latter is considered. Composite
made of long kenaf fibres alkalized with 6% NaOH solution and unsaturated polyester resin is investigated in this study by means of soil burial for
4 months. The tensile properties of the composites such as tensile strength and modulus were determined. The percentage of moisture uptake
increased as the weight percentage of fibre content increased due to the high cellulose content. The tensile properties of KFRUPC specimens were
found to decrease with increase in percentage moisture uptake. The water absorption pattern of these composites at soil buried was found to follow
Fickian behavior.
| Key words: Kenaf, natural fibre, unsaturated polyester, mechanical properties. |
| [FULL text for subscribers] |
Journal: Food, Agriculture & Environment
(JFAE) |
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