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Tailor-made suit for a new packaging idea / Inno Gaul in KUNSTSTOFFE INTERNATIONAL, Vol. 98, N° 8/2008 (08/2008)
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Titre : Tailor-made suit for a new packaging idea Type de document : texte imprimé Auteurs : Inno Gaul, Auteur ; Philip Gabriel, Auteur Année de publication : 2008 Article en page(s) : p. 78-80 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Emballages en matières plastiques
Mélanges-maîtres (chimie)
Nucléation
Polyéthylène haute densité
Polymères semi-cristallinsIndex. décimale : 668.4 Plastiques, vinyles Résumé : Masterbatches - Tailor-made masterbatch technologies and new active ingredient formulations lift inexpensive, readily available standard plastics to a new upswing by closing gaps in their requirement profiles. Thus a new packaging concept for beverage bottle multi-packs made of cost-effective polyethylene could be realized, where the crystallinity is especially tailored to this application thanks to a masterbatch. Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=5974
in KUNSTSTOFFE INTERNATIONAL > Vol. 98, N° 8/2008 (08/2008) . - p. 78-80[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 010608 - Périodique Bibliothèque principale Documentaires Disponible Tailored composites / Beate Treffler in POLYMERS PAINT COLOUR JOURNAL - PPCJ, Vol. 198, N° 4531 (12/2008)
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Titre : Tailored composites Type de document : texte imprimé Auteurs : Beate Treffler, Auteur Année de publication : 2008 Article en page(s) : p. 20-21 Langues : Anglais (eng) Catégories : Anhydride maléique
Bois
Calcium
Chlorure de polyvinyle
Composites à fibres -- Additifs
Composites à fibres végétales
Composites à fibres végétales -- Propriétés mécaniques
Polyéthylène haute densité
Polypropylène
ZincIndex. décimale : 668.4 Plastiques, vinyles Résumé : Current applications (for WPC) include outdoor flooring and stairway railing, furniture and high-quality automotive products. Continuous product improvements will open additional markets worldwide, helping WPC get established as a material using mainly renewable resources. En ligne : https://drive.google.com/file/d/1Vzrym5LgefFLtueGWD2yArMvk0xdXoDg/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=3406
in POLYMERS PAINT COLOUR JOURNAL - PPCJ > Vol. 198, N° 4531 (12/2008) . - p. 20-21[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 010971 - Périodique Bibliothèque principale Documentaires Disponible The effect of cellulose nanocrystals (CNC) on isothermal crystallization kinetics of LLDPE and HDPE / V. Tan in INTERNATIONAL POLYMER PROCESSING, Vol. XXXIII, N° 3 (07/2018)
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Titre : The effect of cellulose nanocrystals (CNC) on isothermal crystallization kinetics of LLDPE and HDPE Type de document : texte imprimé Auteurs : V. Tan, Auteur ; W. Abdallah, Auteur ; Musa R. Kamal Année de publication : 2018 Article en page(s) : p. 371-380 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Calorimétrie
CelluloseLa cellulose est un glucide constitué d'une chaîne linéaire de molécules de D-Glucose (entre 200 et 14 000) et principal constituant des végétaux et en particulier de la paroi de leurs cellules.
Cristallisation
Mélange
Nanoparticules
Nucléation
Polyéthylène basse densité linéaire
Polyéthylène haute densitéIndex. décimale : 668.4 Plastiques, vinyles Résumé : Highly porous agglomerates of spray freeze dried cellulose nanocrystals (SFD-CNC) were prepared, starting with sonicated aqueous suspensions of spray-dried cellulose nanocrystals powder (SD-CNC). Subsequently, SFD-CNC together with the SD-CNC (used as a reference) were incorporated into LLDPE and HDPE via melt compounding in a batch mixer to produce nanocomposites containing 0.5 wt.° and 2 wt.° CNC. Differential scanning calorimetry (DSC) was used to study the thermal properties and the isothermal crystallization kinetics of the polyethylenes and the nanocomposites. Polarized light microscopy (PLM) was used to evaluate the growth kinetics and spherulitic structure of polyethylene in both the filled and unfilled polymers. Avrami crystallization kinetics models were employed to analyze the DSC results. It was observed that CNC acts as a heterogeneous nucleating agent in LLDPE nanocomposites, thus yielding nucleation controlled crystallization. On the other hand, in the HDPE systems (polymer and nanocomposites) heterogeneous nucleation was followed by 3-D growth. It was observed that CNC slightly hindered the formation of chain folding for the HDPE, similar to previous studies on the polypropylene and its nanocomposites. Spray freeze drying produced twice as many nucleation sites compared to spray dried samples and it enhanced the overall crystallization rate and the crystallinity. Note de contenu : - EXPERIMENTAL : Materials - Preparation of spray-freeze-dried cellulose nanocrystals - Preparation of PE nanocomposites - Characterization of PE nanocomposites
- RESULTS AND DISCUSSION : Polarized light microscopy - Differential scanning calorimetry
- CONCLUSIONS : PLM microstructure morphology - Comparison of particle size and clusters from PLM - DSC calorimetric thermal properties - DSC isothermal crystallizationDOI : 10.3139/217.3559 En ligne : https://drive.google.com/file/d/14k4oivGUXLQ5gw9nk8tItGzZsnXKBYPL/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=30806
in INTERNATIONAL POLYMER PROCESSING > Vol. XXXIII, N° 3 (07/2018) . - p. 371-380[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 20044 - Périodique Bibliothèque principale Documentaires Disponible The influence of melt and process parameters on the quality and occurrence of part defects in water-assisted injection molded tubes / Sofie Sannen in INTERNATIONAL POLYMER PROCESSING, Vol. XXVI, N° 5 (11/2011)
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Titre : The influence of melt and process parameters on the quality and occurrence of part defects in water-assisted injection molded tubes Type de document : texte imprimé Auteurs : Sofie Sannen, Auteur ; J. de Keyzer, Auteur ; Peter Van Puyvelde, Auteur Année de publication : 2011 Article en page(s) : p. 551-559 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Epaisseur -- Mesure
Matières plastiques -- Moulage par injection
Matières plastiques -- Moulage par injection assistée par eau
Moulage par injection -- Défauts
Plan d'expérience
Polyéthylène haute densité
Polypropylène
TubesIndex. décimale : 668.4 Plastiques, vinyles Résumé : This study investigates the influence of melt and process parameters on the quality of water-assisted injection molded tubes. The influence was determined by the aid of a design of experiments (DOE) for both a HDPE and a PP resin. This design was carried out on two different cavities, in which the residual wall thickness (RWT) and the part weight were set as response functions. This was combined with a visual inspection of the part surface to detect correlations in the occurrence of part defects such as fingering and double wall. It was found that the water injection delay time and the water volume flow rate have the largest influence on the RWT and part weight. Moreover, the shear viscosity of the applied material determines the width and shape of the water bubble and consequently the RWT and part weight. In addition, process parameters such as melt temperature, water hold time and water volume flow rate as well as melt parameters such as shear viscosity have an influence on the formation of part defects. DOI : 10.3139/217.2490 En ligne : https://drive.google.com/file/d/1pAOyM1fM_bc-Cly4qKQsP7EtT8zUFo3j/view?usp=drive [...] Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=12471
in INTERNATIONAL POLYMER PROCESSING > Vol. XXVI, N° 5 (11/2011) . - p. 551-559[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 13440 - Périodique Bibliothèque principale Documentaires Disponible The kinetics and mechanism of the direct fluorination of polyethylenes / Alexander P. Kharitonov in SURFACE COATINGS INTERNATIONAL. PART B : COATINGS TRANSACTIONS, Vol. 88, B3 (09/2005)
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Titre : The kinetics and mechanism of the direct fluorination of polyethylenes Type de document : texte imprimé Auteurs : Alexander P. Kharitonov, Auteur ; Reiner Taege, Auteur ; Grant Ferrier, Auteur ; N. P. Piven, Auteur Année de publication : 2005 Article en page(s) : p. 201-212 Note générale : Bibliogr. Langues : Anglais (eng) Catégories : Cinétique chimique
Fluoration
Polyéthylène basse densité
Polyéthylène haute densité
Polyfluorure de vinyle
Polyfluorure de vinylidèneIndex. décimale : 668.9 Polymères Résumé : Two types of low-density polyethylene (LDPE), five types of high-density polyethylene (HDPE), poly(vinyl fluoride) (PVF) and poly(vinylidene fluoride) (PVDF) were studied. The fluorination of LDPE and HDPE is a diffusion-controlled process and proceeds via a branched chain mechanism following an induction period. Initiation of the reaction takes place via the reaction of molecular fluorine with the C-H bond. The rate of fluorination of HDPE exceeds that of LDPE. PVDF cannot be fluorinated even at temperatures as high as 430K and/or under UV irradiation. The kinetics associated with the formation and termination of peroxy RO •2 and fluorocarbon long-lifetime radicals was studied. It is mainly middle peroxy radicals that are formed at treatment conditions close to those used in industrial processes. Note de contenu : - INTRODUCTION : Materials - Experimental
- RESULTS AND DISCUSSION : Kinetics of formation of a fluorinated layer - The relationship between fluorination and chemical composition : IR study - The relationship between fluorination and chemical composition - IR study - summary - The kinetics of formation of long-life radicals - Kinetics of the termination of long-lifetime radicals - The kinetics of elementary reactions - Summary - Preliminary schematic of the elementary reactionDOI : 10.1007/BF02699574 En ligne : https://link.springer.com/content/pdf/10.1007/BF02699574.pdf Format de la ressource électronique : Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=5417
in SURFACE COATINGS INTERNATIONAL. PART B : COATINGS TRANSACTIONS > Vol. 88, B3 (09/2005) . - p. 201-212[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 003027 - Périodique Bibliothèque principale Documentaires Disponible The processing behavior of liquid Sn/molten polyethylene during internal mixing / G. Zhang in INTERNATIONAL POLYMER PROCESSING, Vol. XXIX, N° 2 (05/2014)
PermalinkThermal and tensile behavior of HD-PE films containing iron (III) acetylacetonate after UV irradiation / D. Kiryakova in INTERNATIONAL POLYMER PROCESSING, Vol. XXIX, N° 5 (11/2014)
PermalinkTransient swell of a high density polyethylene using adjustable gap slit die / V. K. Konaganti in INTERNATIONAL POLYMER PROCESSING, Vol. XXXII, N° 5 (11/2017)
PermalinkUtilisation des copolymères blocs styréniques / Sandrine Averlant in CAOUTCHOUCS & PLASTIQUES, N° 717 (10/1992)
PermalinkUtilisation de la technique de compoundage par polymérisation pour la préparation de nanocomposites de Polyéthylène/Montmorillonite / Asmaa Gaboune / 2006
PermalinkVersatile flame retardant for olefinic and styrenic polymer / Subramaniam Narayan in POLYMERS PAINT COLOUR JOURNAL - PPCJ, Vol. 202, N° 4572 (05/2012)
PermalinkVisualization of flow instabilities for high density polyethylene / H. Kometani in INTERNATIONAL POLYMER PROCESSING, Vol. XXI, N° 1 (03/2006)
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