Flexural properties of kenaf fibre hybrid and non-hybrid composite materials
Natural fibre are well known for its properties where it has low density and it is also better in form of cost efficiency compared to synthetic fibre. There are not too much difference between specific properties of natural fibre and synthetic fibre although the natural fibre strength is signifi...
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Main Authors: | , , , , , |
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Format: | Article |
Published: |
Blue Eyes Intelligence Engineering & Sciences Publication
2019
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Online Access: | http://psasir.upm.edu.my/id/eprint/79920/ https://www.ijrte.org/download/volume-8-issue-1s5/ |
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Summary: | Natural fibre are well known for its properties where it
has low density and it is also better in form of cost efficiency
compared to synthetic fibre. There are not too much difference
between specific properties of natural fibre and synthetic fibre
although the natural fibre strength is significantly lower than
synthetic fibre. This study discusses the flexural properties of a
hybrid composite made from both natural fibre and synthetic
fibre. In this research, kenaf fibre – non-treated and treated with
NaOH solution – as well as x-ray film – non-treated and surface
treated with consistent holes were chosen to investigate its flexural
properties. The number of layers in this study is maintain
throughout the research, which are seven layers of kenaf – treated
and untreated – as well as alternating layers between kenaf fibre
and x-ray films – also treated and untreated. The specimen were
prepared using the normal hand lay-up process and it was tested
by the three-point bending method using Instron 4204 at a speed
of 15mm/min. Even though the test showed expected problems
such as interfacial bonding issues, there are improvements due to
treatment and the hybridization. The specimen showed results of
flexural modulus of up to 8.83GPa for treated fully kenaf
configuration and 3.36GPa for alternative configuration with
treated kenaf. The higher flexural modulus is suitable for
applications which desire a more rigid structure like a spall linear
or car bumper, while the specimen with the lower flexural
modulus is suitable for a more flexible structure like body armour. |
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