Abstract
β-Nucleated isotactic polypropylene (β-iPP) blend with maleic anhydride grafted polyethylene-vinyl acetate (EVA-g-MA) and β-iPP/polyamide (PA) 6 blend, as well as its compatibilized version with EVA-g-MA as a compatibilizer were prepared with an internal mixer. Analysis from differential scanning calorimeter (DSC) and wide angle X-ray diffraction (WAXD) indicates that the addition of EVA-g-MA into β-nucleated iPP decreases the crystallization temperature (Tcp) of PP, but it has no pronounced influence on the β-crystal content for β-nucleated iPP. For β-nucleated iPP/PA6 blends, PA6 obviously decreases the β-crystal content. However, the addition of EVA-g-MA is quite benefit for the formation of β-crystal in β-nucleated iPP/PA6 blends and the β-crystal content increases with increasing EVA-g-MA content. It is suggested that the nucleating agent mainly disperses in the PA6 phase and/or the interface between iPP and PA6 in iPP/PA6 blend, which was proved by etching the blends with sulfuric acid and experimental facts from SEM. © 2010 Elsevier B.V.
Original language | Undefined/Unknown |
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Pages (from-to) | 152-158 |
Number of pages | 7 |
Journal | Thermochimica Acta |
Volume | 511 |
Issue number | 1-2 |
DOIs | |
Publication status | Published - Nov 2010 |
Bibliographical note
Cited By (since 1996):13Export Date: 14 November 2013
Source: Scopus
Keywords
- β-Crystal
- Crystallization behavior
- EVA-g-MA
- iPP/PA6 blend
- Melting characteristic