Morphology and properties of poly(vinylidene fluoride) (PVDF)/ethylene

Abstract

Thermal properties, mechanical properties, and morphology of poly(vinylidene fluoride) (PVDF), ethylene–vinyl acetate copolymer (EVA) and their binary blends with different blending ratios were studied. The results of differential scanning calorimetry (DSC) indicated that the peak crystallization temperature of PVDF did not change much as the EVA content varied. With the addition of EVA, crystallinity of PVDF varied from 41·0 to 51·1% and crystallinity of EVA changed from 4·0 to 4·9%. With regard to thermogravimetric analysis (TGA), the temperature at which 5% weight loss occurred increased as PVDF content increases. As the EVA content increases, the tensile strength and elongation at break firstly exhibit a decreasing trend up to the content of 50 wt-% EVA, however, this is followed with an increase with further addition of EVA. Melt flow rate (MFR) of blends increased with EVA content.

Keywords

Poly(vinylidene fluoride)Ethylene–vinyl acetate copolymer Thermal degradation behaviour Crystallisation behaviour

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Morphology and properties of poly(vinylidene fluoride) (PVDF)/ethylene–vinyl acetate copolymer (EVA) blends

Abstract

Keywords

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