On the Preparation and Characterization of Polyethylene/Polyamide Blends by Melt Processing in the Presence of an Ethylene/Acrylic Acid Copolymer and of New Phosphazene Compounds

Scaffaro, R.; Mistretta, Maria Chiara; Mantia, Francesco Paolo La; Gleria, Mario; Bertani, Roberta; Samperi, Filippo; Puglisi, Concetto

doi:10.1002/macp.200600332

Cited by 27 publications

(14 citation statements)

References 39 publications

(114 reference statements)

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“…Actually, the differences in chemical nature between the polymer components or between the polymer matrix and the dispersed particles give rise to polymer systems with poor properties. As regards polyethylene/polyamide 6 blends, these systems have been extensively studied in the literature, as well as the need for compatibilization techniques in order to obtain good physical (in particular, mechanical) properties .…”

Section: Introductionmentioning

confidence: 99%

Compatibilization of polyethylene/polyamide 6 blend nanocomposite films

et al. 2015

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Polymer blends of incompatible components need to undergo compatibilization, in order to give rise to a blend with good physical properties. At the same way, polymer/clay nanocomposites show this problem because of different chemical nature of the polymer matrix and of the clay. Compatibilization is therefore more necessary if an incompatible polymer blend is filled with an organomodified clay in order to give a final material with good properties. In this work, a polyethylene/polyamide 6 blend filled with an organomodified clay has been compatibilized with a maleic anhydride grafted SEBS (styrene‐ethylene‐butylene‐styrene) copolymer and a glicidylmethacrylate‐ethylene copolymer. The results show that compatibilization improves the mechanical properties in terms of elongation at break, as well as the rheological properties under nonisothermal elongational flow; furthermore, an unexpected effect has been found, since going from the isotropic to the anisotropic material, a fragile‐ductile transition occurs, with a significant increase of the elongation values, while a small reduction of the elastic modulus was found, because of the lower crystallinity in comparison to isotropic samples. POLYM. COMPOS., 36:992–998, 2015. © 2015 Society of Plastics Engineers

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Section: Introductionmentioning

confidence: 99%

Compatibilization of polyethylene/polyamide 6 blend nanocomposite films

et al. 2015

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“…The presence of free carboxyl groups on the polymer backbone makes it an excellent candidate for several modification reactions. Examples of the use of modified PEAA can be found in the fields of compatibilization, [15][16][17] biomedical applications 18,19 and packaging. 20 Sodium montmorillonite (Na + -MMT) is the most common clay used to prepare PCNs.…”

Section: Introductionmentioning

confidence: 99%

Comparison of Na+-MMT and Ca2+-MMT for the preparation and characterization of poly(ethylene-co-acrylic acid) ionomer/MMT nanocomposites

Sur

2011

Macromol. Res.

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Polymer/clay based composite films were prepared by incorporating sodium montmorillonite (Na + -MMT) and calcium montmorillonite (Ca 2+ -MMT) clay into poly(ethylene-co-acrylic acid) (PEAA). The dispersion of the MMT particles in the PEAA/MMT nanocomposites was examined by transmission electron microscopy (TEM) and X-ray diffraction (XRD). TEM indicated that the mean lateral dimensions of MMT particles in the PEAA/MMT nanocomposites was approximately 300 nm and their thickness was < 20 nm. The PEAA chains were intercalated into the interlayers of MMT. The NH 4 + ions on the PEAA chains were replaced by Na + or Ca 2+ ions in the interlayer of MMT. The mechanical behavior of the PEAA/MMT nanocomposites with different MMT contents was examined using an Instron. The tensile strength increased with increasing MMT content. Since PEAA forms a network by Ca 2+ ions, the tensile stress of the PEAA/Ca 2+ -MMT nanocomposites is larger than that of the PEAA/ Na + -MMT nanocomposites with the same MMT content. The thermal properties of the PEAA/MMT nanocomposites were also discussed with reference to the TGA and DTA curves. TGA and DTA confirmed that the presence of Ca 2+ ions allowed the PEAA to form a network.

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“…Block or graft copolymers formed by in situ reaction of the blend components with compatibilizer precursors have been extensively investigated for polyethylene (PE)/polyamide (PA) and other blends 14–24. Several articles about polyolefin‐based blends are in the literature, using different compatibilizers, such as acrylic acid, phosphazene compounds,25 ionomers,26, 27 and maleic anhydride 22, 28, 29. In this article, a miscibility shape‐memory blend was designed with the PA 6 and linear low‐density polyethylene (LLDPE) as the two principal components.…”

Section: Introductionmentioning

confidence: 99%

Mechanical and shape‐memory properties of polyamide/maleated polyethylene/linear low‐density polyethylene blend

Lin

Sui

Yang

2012

J of Applied Polymer Sci

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Novel polymer blends of polyamide and linear low-density polyethylene with maleated polyethylene as compatibilizers were prepared in a modular intermeshing corotating twin-screw extruder. Polymer blends with different contents of polyamide in polyethylene matrix were obtained. The mechanical properties were studied in terms of the tensile strength and elongation-tobreak. The shape-memory properties of the blended materials were characterized using three-point bending test in a temperature-controlled chamber. The results show that the incorporation of maleated polyethylene has a strong effect on the tensile properties and the morphology of the blends. The shape-memory effect of blended materials is affected by polyamide weight fraction, and 60 wt % polyethylene, 20 wt % polyamide, and 20% maleated polyethylene have an acceptable performance.

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On the Preparation and Characterization of Polyethylene/Polyamide Blends by Melt Processing in the Presence of an Ethylene/Acrylic Acid Copolymer and of New Phosphazene Compounds

Cited by 27 publications

References 39 publications

Compatibilization of polyethylene/polyamide 6 blend nanocomposite films

Compatibilization of polyethylene/polyamide 6 blend nanocomposite films

Comparison of Na+-MMT and Ca2+-MMT for the preparation and characterization of poly(ethylene-co-acrylic acid) ionomer/MMT nanocomposites

Mechanical and shape‐memory properties of polyamide/maleated polyethylene/linear low‐density polyethylene blend

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