Abstract
The effects of added maleated thermoplastic elastomer (TPEg) on rheological properties and morphologies of polypropylene (PP)/polyamide-6 (PA6) blends are examined. For comparison, non-maleated version (TPE) is also added to the above binary blends. The magnitude of complex viscosity and viscoelastic moduli of PP/PA6/TPE blends gradually decrease with the content of TPE. However, for PP/PA6/TPEg blends, these above parameters increase dramatically with increasing content of reactive TPEg and shear-thinning behavior becomes more obvious. SEM micrographs show that the addition of TPEg effectively increases compatibility between PP and PA6 and results in a considerable decrease in the domain size of dispersed phase; whereas the ternary blends containing non-reactive TPE exhibit a typical characteristic of immiscible blends with a very coarse morphology. TEM results further reveal that for PP/PA6/TPEg blends, a core-shell structure consisting of PA6 particles encapsulated with POE are probably formed in PP matrix.
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Liu, H., Xie, T., Ou, Y. et al. Dynamic Rheological Properties of Polypropylene/Polyamide-6 Blends Modified with a Maleated Thermoplastic Elastomer. Polym J 36, 754–760 (2004). https://doi.org/10.1295/polymj.36.754
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DOI: https://doi.org/10.1295/polymj.36.754