Effect of the processing method on the mechanical properties and morphology of compatibilized PA6/LDPE blends |
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Authors: | Pankaj Agrawal Edcleide M Araújo Tomás J A Mélo |
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Affiliation: | (1) Department of Materials Engineering, Federal University of Campina Grande, Av. Aprigio Veloso, 882, Bodocongo, Campina Grande, PB, 58109-970, Brazil |
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Abstract: | In this work, the effect of the processing method on the mechanical properties and morphology of compatibilized PA6/LDPE blends
was investigated. The blends were prepared by two processing methods: Injection and Extrusion followed by Injection. The compatibilizers
used were polyethylene grafted with acrylic acid (PEgAA) and polyethylene grafted with maleic anhydride (PEgMA). The results
showed that in both processing methods the impact strength and elongation at break of the compatibilized blends were greater
than those of the uncompatibilized ones. For the blends prepared by injection, the impact strength of PA6/PEgMA/LDPE blend
was greater than that of PA6/PEgAA/LDPE blend. For the blends prepared by extrusion followed by injection, the impact strength
of the PA6/PEgAA/LDPE blend was greater than that of PA6/PEgMA/LDPE blend. SEM analysis showed that the morphology of the
PA6/PEgAA/LDPE blend prepared by extrusion followed by injection was more stable than that of the same blend prepared only
by injection. |
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Keywords: | |
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