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Bioplastics from blends of Cassava and rice flours : the effect of blend composition / Natinee Lopattananon in INTERNATIONAL POLYMER PROCESSING, Vol. XXVII, N° 3 (07/2012)
[article]
Titre : Bioplastics from blends of Cassava and rice flours : the effect of blend composition Type de document : texte imprimé Auteurs : Natinee Lopattananon, Auteur ; C. Thongpin, Auteur ; N. Sombatsompop, Auteur Année de publication : 2012 Article en page(s) : p. 334-340 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Bioplastiques -- Propriétés mécaniques
Farines végétales
Manioc
Mélange
Riz et constituantsIndex. décimale : 668.4 Plastiques, vinyles Résumé : Bioplastics from melt-mixing of cassava flour, rice flour and their blends with compositions of between 0/100 and 100/0 %wt were successfully obtained using twin-screw extrusion and compression molding processes. The influence of blend composition on the bioplastic’s properties was studied. It was found that the flour blends were uniformly mixed. The tensile properties and dynamic properties of the flour bioplastics were examined. The tensile strength and storage modulus of compression molded bioplastics based on rice flour was greater than those of the cassava flour, but their flexibility was lower. The tensile strength and storage modulus of the flour blend bioplastics increased with increasing rice flour content. The flour bioplastics showed two glass transitions, one corresponding to glycerol rich phase and the other corresponding to plasticized starch. For plasticized flour blends, the glass transitions were not affected by the blend composition. The improvement in the mechanical properties of the bioplastics produced from the cassava/rice flour blend could be explained by an increase in the crystallinity level resulting from the higher concentration of rice flour. Using flour blends derived from cassava and rice flours, the bioplastics developed in this study offer a greater performance while maintaining environmental compatibility and sustainability, which allows for a substitution of tradition bioplastics from cassava starch. DOI : 10.3139/217.2532 En ligne : https://drive.google.com/file/d/1Eu4a8Dszy4i7eRR0zBZXuL--T6o9rF44/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=15579
in INTERNATIONAL POLYMER PROCESSING > Vol. XXVII, N° 3 (07/2012) . - p. 334-340[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 13995 - Périodique Bibliothèque principale Documentaires Disponible Experimental and computational investigations of creep responses of wood/PVC composite members / Tawich Pulgern in INTERNATIONAL POLYMER PROCESSING, Vol. XXIX, N° 3 (07/2014)
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Titre : Experimental and computational investigations of creep responses of wood/PVC composite members Type de document : texte imprimé Auteurs : Tawich Pulgern, Auteur ; P. Kaewkalya, Auteur ; V. Rosarpitak, Auteur ; N. Sombatsompop, Auteur Année de publication : 2014 Article en page(s) : p. 307-316 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Acier au carbone
Bois
Chlorure de polyvinyle
Composites -- Fluage
Composites à fibres végétales
Eléments finis, Méthode des
Matériaux -- Renforcement
Simulation par ordinateurIndex. décimale : 668.4 Plastiques, vinyles Résumé : This article reported on finite element simulation to predict the creep responses of wood/poly (vinyl chloride) (WPVC) composite members before and after strengthening by using high carbon steel (HCS) flat bar strips bonded to the tension side of composite members. The short-term properties and creep characteristics, in accordance with power law models of WPVC composites and HCS flat bar materials, were determined individually by extensive experimental investigations. The experimental results indicated that strengthening of WPVC composites with HCS flat bar strips could increase the flexural and creep performances of the WPVC composite members both in flat-wise and edge-wise directions. The improvement in the edge-wise direction was relatively greater than that in the flat-wise direction, representing the loading direction dependence for this composite member. Abaqus finite element analysis (FEA) software was applied to predict the creep responses of WPVC composite members based on the characteristics of the individual component material; these results were then verified by the experimental results. Good correlations between FEA and experimental results were found in all cases, indicating that Abaqus software with the power law creep model can be used as an alternative tool for determining the creep responses of WPVC composites. Note de contenu : - EXPERIMENTAL : Materials and test specimens - Short-term static tensile and flexural tests - Tensile creep test setup - Flexural creep test setup
- RESULTS AND DISCUSSION : Mechanical properties of WPVC composite members before and after strenthening - Creep parameters of HCS under tension - Bending creep parameters of WPVC composites - Finite element modeling of WPVC composite members - Comparison between FEA simulation and experimental creep responsesDOI : 10.3139/217.2927 En ligne : https://drive.google.com/file/d/1hd0XDW3cj-QwN-POJOaxmJtS-mt7vZgN/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=21727
in INTERNATIONAL POLYMER PROCESSING > Vol. XXIX, N° 3 (07/2014) . - p. 307-316[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 16404 - Périodique Bibliothèque principale Documentaires Disponible