Development of palm oil-based fly ash powder-binder system for three-dimensional printing
Three-dimensional printing (3DP) is one of the techniques in rapid prototyping (RP) technology which creates parts directly from graphical data computer and it is being widely used in diverse areas. However, the cost of the 3DP material is high and limited to a number of choices that can be used...
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Main Author: | |
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Format: | Thesis |
Language: | English English English |
Published: |
2010
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Subjects: | |
Online Access: | http://eprints.uthm.edu.my/3597/1/24p%20NORHIDAYAH%20MOHD%20ZAIN.pdf http://eprints.uthm.edu.my/3597/2/NORHIDAYAH%20MOHD%20ZAIN%20COPYRIGHT%20DECLARATION.pdf http://eprints.uthm.edu.my/3597/3/NORHIDAYAH%20MOHD%20ZAIN%20WATERMARK.pdf |
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Summary: | Three-dimensional printing (3DP) is one of the techniques in rapid prototyping (RP)
technology which creates parts directly from graphical data computer and it is being
widely used in diverse areas. However, the cost of the 3DP material is high and
limited to a number of choices that can be used due to the restricted capabilities of
the existing binder. This research aims to investigate the potential of the new
powder-binder system for palm oil-based fly ash (POFA) for 3DP applications. The
newly proposed material is a type of powder-binder system containing POFA
powder, maltodextrin and polyvinyl alcohol (PVA) which was prepared thoroughly
by three different techniques; mechanical mixing, ball milling and solution blending
process. Certain mass percentage of POFA powder-binder system was successfully
fabricated as a product of the 3DP of which distilled water was used as the binding
material and followed by post-treatment with the Z Max solution in order to further
improve their mechanical properties. The experimental results show that, by using
solution blending process during material preparation of the POFA powder-binder
system is able to achieve good tensile strength and surface quality with mean values
of 6.65MPa and 12.05µm, respectively. However, the preparation of POFA powderbinder
system
by
using
the
mechanical
mixing
method
show
good
flexural
strength
results
with
mean
value
of
44.7MPa.
Both
results
of
mechanical
properties
are
allegedly due to the bimodal powder in the POFA powder-binder system which
contains various particle sizes. Further studies are required to improve the quality of
the product printed using the POFA powder-binder system particularly regarding of
the dimensional accuracy. This study believes that the POFA powder-binder system
has the potential to be used as an optional material for 3DP applications. |
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