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Crystallization kinetics of polypropylene-polyamide compatibilized blends

✍ Scribed by I. Campoy; J.M. Arribas; M.A.M. Zaporta; C. Marco; M.A. Gómez; J.G. Fatou

Publisher
Elsevier Science
Year
1995
Tongue
English
Weight
636 KB
Volume
31
Category
Article
ISSN
0014-3057

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✦ Synopsis

Polypropylene and polyamide blends (composition 70/30) have been studied with and without the addition of maleic anhydride functionalized polypropylene at different levels, 1, 3, 5 and 10% by weight.

The influence of the compatibilizing agent on the thermal transitions and on the morphology has been determined by X-ray diffraction, differential scanning calorimetry in dynamic and isothermal conditions and by dynamic mechanical analysis.

The crystallization kinetics of these blends have been systematically investigated.

The isothermal crystallization of the PA component is influenced by the presence of PP, reducing the crystallization rate due to the diluent effect originated by this polymer. On the contrary, the crystallization rate of PP in the blends is higher than the corresponding value for pure PP.

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