PVC is one of the most commercialized thermoplastic materials with
industrial and household applications. Plastic possesses an important
percentage in waste stream and its recycling is vital. Plasticizer usage is
also essential for the PVC manufacturing and recycling. It is the purpose of
this study to determine the effects of processing methods, DOP concentration
and wood flour amount on the mechanical properties of recycled PVC composites.
15 and 30 phr (per-hundred-resin) DOP and 0-15-30 phr wood flour was studied.
Composite materials were produced using injection and compression molding
methods. Tensile, flexural, impact, hardness (shore D) and density of the
composites were determined. Based on these results, DOP and filler content and
process had a significant effect on mechanical properties. Utilization of DOP
in the PVC matrix made material softer and flexible. Resulting materials had
higher elongation at break and impact strength and smaller shore D values. In
an expense to these good results, it reduced the tensile and flexural strength
and modulus values. Addition of wood
filler in the system, increased modulus values while reducing strength values.
In the case of processing methods, injection molded samples provided overall
better properties than compression molded ones. It should be noted that, in the
case of injection molding, samples were better mixed due to the screw in the
machine. Recycling of PVC is a vital subject and more study is needed.
Subjects | Engineering, Environmental Engineering |
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Journal Section | Research Articles |
Authors | |
Publication Date | August 25, 2017 |
Submission Date | March 31, 2017 |
Published in Issue | Year 2017 |