Injection blow molding technology for polyethylene terephthalate / R. A. Bubeck in INTERNATIONAL POLYMER PROCESSING, Vol. XV, N° 4 (12/2000)  

[article]  inINTERNATIONAL POLYMER PROCESSING > Vol. XV, N° 4 (12/2000) . - p. 337-342 Titre : Injection blow molding technology for polyethylene terephthalate Type de document : texte imprimé Auteurs : R. A. Bubeck, Auteur ; M. A. Barger, Auteur Année de publication : 2000 Article en page(s) : p. 337-342 Note générale : Bibliogr. Langues : Anglais (eng) Index. décimale : 668.9 Polymères Résumé : A review of patents and the literature addressing the injection blow molding (IBM) technology specific to PET bottles and containers is presented. Fabrication and polymer modification issues were cited. It was found that there is no model that includes all factors which enables a complete a priori prediction of injection blow molded PET container performance, but there are several which cover certain aspects of the preform blowing step. Hot fill capability for PET is currently managed by both the control of crystallinity and container design considerations (i.e., wall profile, ribs, etc.). Depending on the desired result, both processing routes to enhance the level of crystallinity (generically referred to in the industry as heat set technology), and molecular modification to disrupt crystallinity have been patented, some quite recently. A number of patents address technologies that can be used to modify melt elasticity for blow molding. The modification of PET with PEN presents some new challenges due to transesterification during processing and fabrication. Biaxial stretch ratios of 18 are usually required for the blow molding of PET/PEN blends, and maximum filling temperature noticeably decreases only one day after fabrication. Note de contenu : - GENERAL FUNDAMENTALS AND APPLICABLE MODELS - THE TECHNOLOGY OF INJECTION BLOW MOLDING OF PET : Processing technology for IBM of PET - Polymer modification of PET for IBM - Integrated handles DOI : 10.3139/217.1616 En ligne : https://drive.google.com/file/d/130QInWpAgVGSAYLlPO7o_MZXn6SGHanr/view?usp=drive [...] Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=16143 [article]

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Natural and synthetic clay-filled coatings for insulation barrier applications / Roy T. Fox in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 13, N° 1 (01/2016)  

[article]  inJOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 13, N° 1 (01/2016) . - p. 181-189 Titre : Natural and synthetic clay-filled coatings for insulation barrier applications Type de document : texte imprimé Auteurs : Roy T. Fox, Auteur ; H. Zhang, Auteur ; M. A. Barger, Auteur ; C. Han, Auteur ; M. Paquette, Auteur Année de publication : 2016 Article en page(s) : p. 181-189 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Argile Caractérisation Charges (matériaux) Latex Matériaux -- Propriétés barrières Polyuréthanes Revêtements protecteurs Smectite Index. décimale : 667.9 Revêtements et enduits Résumé : Hybrid organic/inorganic coatings provide effective barriers to gas transmission and therefore find utility in a variety of application areas, including surface treatment of foams for thermal insulation purposes. Blends of aqueous latexes with select smectite clays are particularly attractive, in that the efficient formation of layered interconnecting networks occurs upon drying. The plate-like structure of clays enables this behavior at relatively low volumetric content of inorganic material. A variety of both natural and synthetically derived high purity clays are evaluated for their ability to form low permeability films, with effects of loading, aspect ratio, and refinement technique described. Note de contenu : - EXPERIMENTAL : Materials - Coating characterization - DISCUSSION : Clay types - Clay loadings - Refinement technique - Polymeric coating carrier DOI : 10.1007/s11998-015-9726-8 En ligne : https://link.springer.com/content/pdf/10.1007%2Fs11998-015-9726-8.pdf Format de la ressource électronique : Pdf Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=25387 [article]

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