Processing and characterization of polyphenylene ether/polystyrene/nylon-6 ternary blends / P. Hadimani in INTERNATIONAL POLYMER PROCESSING, Vol. XXXV, N° 2 (05/2020)  

[article]  inINTERNATIONAL POLYMER PROCESSING > Vol. XXXV, N° 2 (05/2020) . - p. 169-183 Titre : Processing and characterization of polyphenylene ether/polystyrene/nylon-6 ternary blends Type de document : texte imprimé Auteurs : P. Hadimani, Auteur ; H. N. Narasimha Murthy, Auteur ; R. Mudbidre, Auteur Année de publication : 2020 Article en page(s) : p. 169-183 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Alliages polymères Alliages polymères -- propriétés mécaniques Caractérisation Ether de polyphénylène Extrudeuse bi-vis Extrudeuse rotative Matières plastiques -- Extrusion Polyamide 6 Polystyrène Stabilité dimensionnelle Stabilité thermique Transition vitreuse Index. décimale : 668.4 Plastiques, vinyles Résumé : Polyphenylene ether (PPE) is a polymer with very high glass transition temperature, superior thermal stability but poor melt processability. Mainly to improve its processability and chemical resistance, it is blended with Polystyrene (PS) and Nylon-6, respectively. In this research, ternary blends of PPE/PS/Nylon-6 were prepared using co-rotating twin screw extrusion and test specimens were injection molded. The influence of Maleic anhydride and screw speed on the mechanical and thermal properties of the ternary blends was investigated. The 40/40/20 blends, without Maleic anhydride, processed at screw speed of 600 min–1 showed highest tensile, flexural and impact strengths of 65.74 MPa, 82.22 MPa and 8.88 kJ/m2, respectively. Complete miscibility of the three polymers in the ternary blend was evidenced by scanning electron micrographs. Glass transition temperature of the ternary blend was 127 °C. High thermal and dimensional stability of the blend was evidenced by lowest volatile mass and highest residual mass at 800 °C along with decomposition temperature of 458.6 °C. Maleic anhydride was not effective as compatibilizer in improving the mechanical properties of the ternary blend. Note de contenu : - EXPERIMENTAL DETAILS : Materials and processes - Testing of PPE/PS/Nylon-6 blends - Density, moisture absorption and thermal analysis - Scanning Electron Micrography - RESULTS AND DISCUSSION : Mechanical testing of PPE/PS/Nylon-6 blends - Process parameters and spectrophotometric data of PPE/PS/Nylon-6 blend - DSC and miscibility studies - Thermo-gravimetric analysis studies - Fourier Transform Infrared (FTIR) spectroscopy - MORPHOLOGY DOI : https://doi.org/10.3139/217.3864 En ligne : https://drive.google.com/file/d/1bvqH1rxejh8jNkwWfo1TWLHmRiNHKCyc/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=34011 [article]

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