The effect of addition of different elastomers upon the crystalline nature of PP |
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| Authors: | Ana Lúcia N Da Silva Marisa C G Rocha La Lopes Beatriz S Chagas Fernanda M B Coutinho |
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| Affiliation: | Ana Lúcia N. Da Silva,Marisa C. G. Rocha,Léa Lopes,Beatriz S. Chagas,Fernanda M. B. Coutinho |
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| Abstract: | Thermal and morphological studies have been performed on polymer blends based on ethylene–octene copolymer (PEE)/PP and ethylene–propylene–diene copolymer (EPDM)/PP. The thermal and morphological behavior of PEE, EPDM, PEE/PP, and EPDM/PP systems were analyzed by differential scanning calorimetry (DSC) and polarizing light microscopy, respectively. It was observed that the behaviors of crystallization kinetics of PEE/PP and EPDM/PP blends were similar. It was also observed that addition up to 10–20% (w/w) of elastomers resulted in increasing of spherulite size. The heat of fusion (ΔHf) and crystallinity degree of PEE/PP and EPDM/PP systems decreased when the elastomer contents were increased. © 2001 John Wiley & Sons, Inc. J Appl Polym Sci 81: 3530–3537, 2001 |
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| Keywords: | elastomers crystallization kinetics PP |
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