This work studies the mechanical and morphological properties of
polypropylene (PP)/polyoxymethylene (POM) blends. The PP/POM blends were prepared by melting-blend
with an internal mixer. The contents of PP were used at 10%, 20%, 30%, 70%, 80% and 90% by weight. The phase morphology of the blends was observed by
scanning electron microscope (SEM) due to the mechanical properties depended on
the phase morphology. The results show the decrease of the impact strength,
Young’s modulus and tensile strength of POM/PP blends with increasing of PP
content up to 30 wt% and then increase again with a high PP content. The
percent strain at break of the blends increases after adding PP in a range of
70-90 wt%. SEM study reveals that the POM/PP blends
clearly demonstrate a two-phase matrix-particle microstructure. The results
also show that the domain size of dispersed PP or POM phase increases with
increasing PP or POM content. The POM domain size is smaller than the PP domain
size which leads to a little change of mechanical results of PP.
Cite this paper
S. Wacharawichanant and T. Siripattanasak, "Mechanical and Morphological Properties of Polypropylene/Polyoxymethylene Blends," Advances in Chemical Engineering and Science, Vol. 3 No. 3, 2013, pp. 202-205. doi: 10.4236/aces.2013.33026.
 R. Scaffaro, M. C. Mistretta and F. P. La Mantia, “Compatibilized Polyamide 6/Polyethylene Blend-Clay Nanocomposites: Effect of the Degradation and Stabilization of the Clay Modifier,” Polymer Degradation and Stability, Vol. 93, 2008, pp. 1267-1274.
 S. Mallick, A. K. Dhibar and B. B. Khatua, “Effect of Nanoclay on the Morphology and Properties of Poly(methyl methacrylate)/High-Density Polyethylene Blends,” Journal of Applied Polymer Science, Vol. 116, 2010, pp. 1010-1020.
 L. Wang, Z.-X. Guo and J. Yu, “Effect of Compounding Sequence on the Morphology of Organoclay-Filled PA6/ PP/MAPP Blends,” Journal of Applied Polymer Science, Vol. 120, 2011, pp. 2261-2270.
 S. Mallick and B. B. Khatua, “Morphology and Properties of Nylon6 and High Density Polyethylene Blends in Absence and Presence of Nanoclay,” Journal of Applied Polymer Science, Vol. 121, 2011, pp. 359-368.
 A. J. Jose and M. Alagar, “Development and Characterization of Organoclay-Filled Polyoxymethylene Nanocomposites for High Performance Applications,” Polymer Composites, Vol. 32, 2011, pp. 1315-1324.
 S. Srivastava, S. J. La’Verne, I. A. Khan, P. Ali and V. D. Gupta, “Phonons and Heat Capacity of Polyoxymethylene,” Journal of Applied Polymer Science, Vol. 122, 2011, pp. 1376-1381.
 Q. Wang, “Thermal Stability of Polyoxymethylene and Its Blends with Poly(ethylene-methylacrylate) or Poly-(styrene-butadiene-styrene),” Journal of Applied Polymer Science, Vol. 121, 2011, pp. 376-388.
 C. K. Kum, Y.-T. Sung, Y. S. Kim, H. G. Lee and W. N. Kim, “Effects of Compatibilizer on Mechanical, Morphological, and Rheological Properties of Polypropy-lene/-poly(acrylonitrile-butadiene-styrene) Blends,” Macromolecular Research, Vol. 15, 2007, pp. 308-314.
 S. Mallick, P. Kar and B. B. Khatua, “Morphology and Properties of Nylon 6 and High Density Polyethylene Blends in Presence of Nanoclay and PE-g-MA,” Journal of Applied Polymer Science, Vol. 123, 2012, pp. 1801-1811.
 A. K. Dhibar, J. K. Kim and B. B. Khatua, “Cocontinuous Phase Morphology of Asymmetric Compositions of Poly-propylene/High-Density Polyethylene Blend by the Addition of Clay,” Journal of Applied Polymer Science, Vol. 119, 2011, pp. 3080-3092.