Kenaf-filled thermoplastic polyurethane-natural rubber composite for automotive engine rubber mount
This study focuses on the compatibility of natural rubber (NR) and thermoplastic polyurethane (TPU) blends with kenaf fiber as filler. The early stage is to prepare the raw material as the NR is in liquid form, while the TPU is in resin form. All three material is then blended into the Brabender...
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| Main Author: | |
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| Format: | Thesis |
| Language: | English |
| Published: |
2019
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| Subjects: | |
| Online Access: | http://psasir.upm.edu.my/id/eprint/98202/1/FK%202020%2091%20-%20IR.pdf |
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| Summary: | This study focuses on the compatibility of natural rubber (NR) and thermoplastic
polyurethane (TPU) blends with kenaf fiber as filler. The early stage is to prepare
the raw material as the NR is in liquid form, while the TPU is in resin form. All
three material is then blended into the Brabender machine using the correct
temperature. When the three material is bonded nicely, is then prepared into sample
board using 40-tonne hot press machine using specific temperature and cut into
specific specimen sample according to the ASTM standard required. The first aim
is to identify the mechanical properties of the new develop composite such as
tensile, flexural, impact, thermal and kinetic behaviour. The physical test is then
compared to the untreated and the treated kenaf using NaOH. The comparison is
done to identify the bonding effect between the polymer composite. The result for
tensile strength achieve for untreated and treated is almost the same which is 5.5
Mpa. The flexural strength for the untreated fiber is 4 Mpa and for the treated fiber
is 3.4 MPa. Meanwhile for the impact strength for the treated fiber shows slightly
higher 2.5 MPa then the untreated fiber which is 1 MPa. The bonding comparison
is carefully observe using a scanning electron microscope (SEM). The TPU-NR
kenaf filler polymer composite the then proposed to be applied in the automotive
parts such as engine rubber mounting to replicate the standard engine rubber
mountings function. A conceptual design study has been initiated to select the new
conceptual engine rubber mounting design using TRIZ, morphology chart and
analytical network programme (ANP). Finally, the selected engine mounting
design will be analysed using ANSYS simulation for stress-strain analysis to check
the compatibility of the TPU-NR kenaf filled polymer composite with the engine
mounting design. A simple stress and deformation simulation using ANSYS are
conducted towards the final product design. The performance of rubber mounting
is tested with several loading conditions to studies the capabilities of the engine
mounting using ANSYS simulation. |
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