Recycling is vital
subject for sustainable future and environment. Plastic waste can be post-consumer
and pre-consumer and need urgent recycling. Both PVC and Polyethylene
terephthalate (PET) were used commonly and has important place in solid waste
stream. These polymers should be reused or recycled instead of landfilling due
to their valuable properties. In this study, potential utilization of PET flour
in recycled PVC composites was investigated using 2-level factorial
design. Processing type (injection
molding vs compression molding) and PET filling concentration (0% and 10%)
during recycled PVC composite materials manufacturing were studied. During
manufacturing process, 20 phr (per-hundred-resin) DOP was utilized. Density,
tensile, flexural, impact and hardness (shore D) properties of composites were
determined. Results showed that samples produced with injection molding process
provided superior tensile properties compared to compression molding process
ones. Addition of PET flour into recycled PVC matrix both reduced the tensile
strength and elongation at break values while improving tensile modulus. In the
case of flexural properties, compression molding and injection molding provided
higher flexural strength and flexural modulus, respectively. Impact strength
was reduced with injection molding and PET presence in the matrix. Processing
type did not affect the hardness of the materials. However, addition of PET in
the PVC matrix increased the hardness of the samples. Future studies will be
conducted to investigate the effect of using different size and shape PET
fibers in recycled PVC.
Subjects | Environmental Engineering |
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Journal Section | Research Articles |
Authors | |
Publication Date | August 25, 2017 |
Submission Date | March 29, 2017 |
Published in Issue | Year 2017Volume: 20 Issue: 2 |