Tensile behavior of hybrid natural/glass fibers reinforced composites at different temperatures
Nowadays, natural fiber reinforced composites are given bright opportunities to replace synthetic fiber reinforced composites especially in automotive sectors. Natural fibers offer considerable high strength, low weight and less abrasive effect. But this fiber is incompatible to polymeric material w...
| Main Authors: | , |
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| Format: | Conference or Workshop Item |
| Published: |
2007
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| Subjects: | |
| Online Access: | http://eprints.uthm.edu.my/1962/ http://eprints.uthm.edu.my/1962/1/TENSILE_BEHAVIOR_OF_HYBRID_WAN_NOOR_AZIRA_WAN_YAAKOB_2007.pdf |
| Summary: | Nowadays, natural fiber reinforced composites
are given bright opportunities to replace synthetic fiber
reinforced composites especially in automotive sectors. Natural
fibers offer considerable high strength, low weight and less
abrasive effect. But this fiber is incompatible to polymeric
material which leads to interfacial bonding problems. To
encounter this problem, hybridization between natural and
synthetic fibers are formulated and tested. In this work, coir
and glass fibers are blended mechanically with polypropylene
granular to homogenize the composite mixture. Both fibers are
chemically treated to enhance the bonding with matrix
material. It is then extruded into identical dimensions and
shape (dog-bone tensile specimen). Several different
temperatures are selected ranging from room temperature to
I00°C and the specimens are quasi-statically stressed at
constant cross-head displacement l.Smm/min. It is found that
the interaction between fiber hybridizations and temperatures
played an important role in determining the tensile behavior of
this composite. Scanning electron microscope (SEM) is used to
observe the fracture surfaces of these samples after tensile
tests. Different toughening mechanisms are observed such as
fiber pull-out and interfacial detachments which are depend on
the temperature and fiber volume fraction |
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