Additive adolescence / Olivier Kessling in KUNSTSTOFFE INTERNATIONAL, Vol. 108, N° 10 (10/2018)

[article]  inKUNSTSTOFFE INTERNATIONAL > Vol. 108, N° 10 (10/2018) . - p. 24-30 Titre : Additive adolescence : Materials manufacturers and process developers face growing demands in 3D printing Type de document : texte imprimé Auteurs : Olivier Kessling, Auteur Année de publication : 2018 Article en page(s) : p. 24-30 Langues : Anglais (eng) Catégories : Automobiles -- Freins Avions -- Matériaux Biomatériaux Composites à fibres de carbone Impression tridimensionnelle Polyamide 6 Polycarbonates Polyéther éther cétone Polymères hautes performances Index. décimale : 668.4 Plastiques, vinyles Résumé : Much as when injection molding materials were being developed 30 years ago, the current trend in additive production is toward higher melting materials and materials with improved mechanical properties. The latter can be achieved, for example, by fiber embedding. In machine technology, the developments are increasingly aimed at adapting processing times, sensor systems, and quality monitoring to the demands of high-tech companies. Note de contenu : - High-performance plastics for filament printers and carbon nanotube embedding - Increeasing activity among materials manufacturers - Bio-based and biologically degradable materials - Materials for tool and mold making - Faster and more precise - futher developments in processing - Trends in the additive production of metal parts - Mold inserts with conformal cooling - Using the process chain of powder injection molding for 3D printing - Part finishing treatment - Figure : Sample of a complex part 3D-printed from PA6 - Fig. 1 : 3D-printed parts from materialise for th ecabin interior of Airbus airplanes - Fig. 2 : Fixture made from Antero 800NA to replace a conventionally manufactured PEEK part for mounting hydraulic parts on an airplane wing - Fig. 3 : Carbon nanotubes embedded in plastics include conductive structures in USB demonstrators, thereby enabling an LED to glow - Fig. 4 : Design study made from a carbon fiber-filled polyamide. The part was produced in a laser sintering process - Fig. 5 : Roadmap for materials development at HP. The next steps will probably be toward high-performance materials, flame-retardant and hollow glass sphere-filled materials - Fig. 6 : This model of the heart of a young girl named Jemma was created by an HP Jet Fusion 500/300 series 3D printer. The model helped surgeons prepare for a complicated heart OP - Fig. 7 : This part made from PC with 13% carbon fiber content was melting pot and stirred by rotary motion of a spiral (transparent) and a PC with 30 % CF (black) was put in the printer manufactured from two raw materials. A simple mixture of pure PC - Fig. 8 : Developed by Bugatti: this 8-piston monoblock brake caliper is the world's first brake caliper made by 3D printing and also the largest generatively produced titanium part. Thanks to optimized structures, a 40% weight saving was possible - Fig. 9 : Additively produced mold insert with confor¬mal cooling chan¬nels. The mold insert is produced in layers of metal powder - Fig. 10 : Production system from Desktop Metal. The so-called Single Pass Jetting technology is claimed to be 100 times faster than laser based systems. Market introduction is planned for 2019 - Fig. 11 : Powershot S blasting creates a homo-geneous surface quality and reduces the roughness typical of additively produced - Fig. 12 : Schematic illustration of chemical part smoothing. The untreated part is on the left, the one on the right has gone through the smoothing process Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=31435 [article]

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Bio-based polyols for high-performance polyurethane adhesives in ADHESIVES & SEALANTS INDUSTRY (ASI), Vol. 21, N° 5 (05/2014)  

[article]  inADHESIVES & SEALANTS INDUSTRY (ASI) > Vol. 21, N° 5 (05/2014) Titre : Bio-based polyols for high-performance polyurethane adhesives Type de document : texte imprimé Année de publication : 2014 Langues : Américain (ame) Catégories : Adhésifs -- Propriétés mécaniques Adhésifs -- Propriétés thermiques Biomatériaux Colles:Adhésifs Dimère, Acide Electronique -- Matériaux Hydrophobie Polyesters Polymères hautes performances Polyols Polyuréthanes Réticulation à l'humidité Transport -- Matériaux Index. décimale : 668.3 Adhésifs et produits semblables Résumé : Bio-based adhesive solutions can promote moisture protection and flexibility in a variety of applications. Priplast technology can be used to create high-performance adhesives—either moisture curing, hot melt or PUD. Priplast dimer-based polyester polyols modify adhesives to become hydrophobic, enhance low-temperature flexibility or impact strength, and provide thermo-oxidative and thermal stability combined with excellent hydrolytic stability. These properties are combined with the enhanced environmental profile of a renewable modifier, with up to 100% renewable carbon content. En ligne : http://www.adhesivesmag.com/articles/92864-advancing-adhesives-bio-based-polyols [...] Format de la ressource électronique : Web Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=23361 [article]

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Bio-based reactive diluent derived from cardanol and its application in polyurethane acrylate (PUA) coatings with high performance / Yun Hu in JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, Vol. 16, N° 2 (03/2019)  

[article]  inJOURNAL OF COATINGS TECHNOLOGY AND RESEARCH > Vol. 16, N° 2 (03/2019) . - p. 499-509 Titre : Bio-based reactive diluent derived from cardanol and its application in polyurethane acrylate (PUA) coatings with high performance Type de document : texte imprimé Auteurs : Yun Hu, Auteur ; Guodong Feng, Auteur ; Qianqian Shang, Auteur ; Caiying Bo, Auteur ; Puyou Jia, Auteur ; Chengguo Liu, Auteur ; Feng Xu, Auteur ; Yonghong Zhou, Auteur Année de publication : 2019 Article en page(s) : p. 499-509 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Biomatériaux Caractérisation Cardanol Chimie -- Essais et réactifs Copolymère uréthane acrylate Diluants Huile de ricin et constituants Polymères hautes performances Revêtements -- Propriétés mécaniques Revêtements -- Séchage sous rayonnement ultraviolet Index. décimale : 667.9 Revêtements et enduits Résumé : A UV-curable cardanol-based monomer (ECGE) was prepared using cardanol and epichlorohydrin, followed by epoxidation of the unsaturation in alkyl side chains of cardanol segments. After its chemical structure was confirmed by Fourier transform infrared spectroscopy and proton nuclear magnetic resonance (1H NMR), ECGE was used as a reactive diluent to copolymerize with castor oil-based polyurethane acrylate (PUA) and a series of UV-curable coatings were prepared. Results showed that the viscosity and volume shrinkage of the UV-curable PUA system decreased significantly after the introduction of cardanol-based monomer while maintaining reasonably high bio-renewable contents; when containing 50% of ECGE, the biomass content reaches 66.2%, which is 1.41 times that of pure resin. In addition, the coating properties were evaluated to determine hardness, adhesion, flexibility, and water resistance. The properties of UV-curable thermoset were also studied using tensile testing, dynamic mechanical thermal analysis, and thermogravimetric analysis. The cardanol-based coatings showed excellent adhesion, flexibility, medium hardness, and enhanced char yield although tensile strength, tensile modulus and glass transition temperatures were somewhat diminished. All these performances can be attributed to the unique architectures of ECGE that combined the structural features of rigid benzene ring and long flexible alkyl chains. The UV-curing behavior was determined using real-time IR, and the results indicated that the conversion of unsaturated bond was increased with more concentration of ECGE. Note de contenu : - MATERIALS - Characterization - Synthesis of epoxidized cardanol glycidyl ether (ECGE) - Preparation of the UV-curable coatings - RESULTS AND DISCUSSION : Structure characterization of ECG - Bio-based content of the UV-curable coatings - Viscosity - UV-curing behaviors of the UV-curable bio-based coatings - Volumetric shrinkage of the UV-curable coatings - Gel contents of the UV-curable coatings - Tensile properties - DMA of the UV-curable bio-based coatings - Thermal properties of the UV-curable bio-based coatings - Coatings properties of the UV-curable bio-based coatings - Proposed dual-curing mechanism DOI : 10.1007/s11998-018-0128-6 En ligne : https://link.springer.com/content/pdf/10.1007%2Fs11998-018-0128-6 Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=32420 [article]

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Butt-joined, thermoplastic stiffened-skin concept development / A. Offringa in SAMPE JOURNAL, Vol. 48, N° 2 (03-04/2012)

[article]  inSAMPE JOURNAL > Vol. 48, N° 2 (03-04/2012) . - p. 7-15 Titre : Butt-joined, thermoplastic stiffened-skin concept development Type de document : texte imprimé Auteurs : A. Offringa, Auteur ; J. W. van Ingen, Auteur ; A. Buitenhuis, Auteur Année de publication : 2012 Article en page(s) : p. 7-15 Note générale : Bibliogr. Langues : Américain (ame) Catégories : Avions -- Fuselage Avions -- Matériaux Composites à fibres de carbone Composites thermoplastiques Joint d'about Polyéthers cétone cétone Polymères hautes performances Thermodurcissables Index. décimale : 668.4 Plastiques, vinyles Résumé : A novel thermoplastic skin concept, with co-consolidated stringers, is being brought to technology readiness level (TRL) 6. This implies manufacturing and mechanical testing of full scale demonstrator products. The stringers are T-shaped and made of flat preforms that are butt jointed to each other and to the panel skin. An injection molded filler increases strength. The skin is fiber placed over the stringer preforms and the product is co-consolidated at melt temperature. Because of the butt-joints, manufacturing is relatively simple. The result is a tough thermoplastic product that can compete on weight and cost with state-of-the-art thermoset composite panels. Development and testing of the panel concept is being done in a step-by-step process. Consecutive building blocks are: coupons, three-stringer subcomponent panels and finally full scale skin panels. The main panel represents the mid-section of a business jet horizontal tail. The panel will be assembled into a 12 meter span torsion box and tested in the second half of 2011. Note de contenu : - INTRODUCTION : General - Current thermoplastic composite applications - Thermoplastic growth potential - LARGE THERMOPLASTIC STRUCTURES : Current state-of-the-art thermoset panels - First large thermoplastic structures and discovery of the thermoplastic butt-joint - Butt joint research up to a panel concept - The TAPAS Project and the Road to TRL6 - Design of the torsion box demonstrator - SKIN PANEL DEVELOPMENT : Stringer design and development - Skin design, development and manufacture - Cost modeling - FULL SCALE TESTING Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=13604 [article]

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Ces polymères qui améliorent l'efficacité des transmissions / Jürgen Reinert in PLASTIQUES & CAOUTCHOUCS MAGAZINE, N° 900 (01-02/2013)

[article]  inPLASTIQUES & CAOUTCHOUCS MAGAZINE > N° 900 (01-02/2013) . - p. 58-63 Titre : Ces polymères qui améliorent l'efficacité des transmissions Type de document : texte imprimé Auteurs : Jürgen Reinert, Auteur Année de publication : 2013 Article en page(s) : p. 58-63 Note générale : Notes bibliogr. Langues : Français (fre) Catégories : Automobiles -- Moteurs -- Pièces Automobiles -- Transmissions Frottements (mécanique) Matières plastiques -- Propriétés chimiques Matières plastiques dans les automobiles Polyéther éther cétone Polymères hautes performances Tribologie (technologie) Index. décimale : 668.4 Plastiques, vinyles Résumé : Face aux défis que rencontrent les fabricants de transmissions pour l'automobile, des matériaux hautes performances permettent d'améliorer la durée de vie et les performances en réduisant les pertes par friction. Note de contenu : - Des températures de fonctionnement plus élevées - Les pertes par frottements réduites - Une résistance aux fluides de transmission agressifs - Une fabrication économique en grande série - Des applications multiples - Une miniaturisation poussée beaucoup plus loin Permalink : https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=17307 [article]

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CFRT composites move into overhead power transmission / Michael Ruby in JEC COMPOSITES MAGAZINE, N° 94 (01-02/2015)

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Color for the top of the polymer pyramid / Sibylle Glaser in PLASTICS INSIGHTS, Vol. 113, N° 6 (2023)  

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Colors for the high-performance sector / Bernhard Scheffold in KUNSTSTOFFE INTERNATIONAL, Vol. 111, N° 6 (2021)  

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Une concurrence toujours plus vive in CAOUTCHOUCS & PLASTIQUES, N° 734 (09/1994)

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Economic multilayers / Thomas Apeldorn in KUNSTSTOFFE INTERNATIONAL, Vol. 101, N° 6 (06/2011)  

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Efficient separation in KUNSTSTOFFE INTERNATIONAL, Vol. 102, N° 7 (07/2012)

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Evolution des propriétés mécaniques locales d'une résine polymère en environnement oxydant / Matteo Minervino in REVUE DES COMPOSITES ET DES MATERIAUX AVANCES, Vol. 24, N° 1 (01-02-03/2014)

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Exploring the use of bio-derived, isosorbide-based polyols in the synthesis of high-performance polyurethanes / Jiae Kim in SURFACE COATINGS INTERNATIONAL, Vol. 105.5 (09-10/2022)  

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Fil ultrafin / Bernard Vermeulen in L'INDUSTRIE TEXTILE, N° 1372 (07-08/2005)  

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Fluoropolymers for high-performance applications / Bob Parker in JOURNAL OF PROTECTIVE COATINGS & LININGS (JPCL), Vol. 30, N° 2 (02/2013)

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From metal substitution to sterilization / Roland Sauer in KUNSTSTOFFE INTERNATIONAL, Vol. 101, N° 2 (02/2011)

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High performance, durable and long lasting coatings based on 4-FEVE binder technology : Zeffle / Simon Pelz in POLYMERS PAINT COLOUR JOURNAL - PPCJ, Vol. 209, N° 4648 (02/2019)  

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High performance epoxys resins for powder coatings / Toine Dinnissen in POLYMERS PAINT COLOUR JOURNAL - PPCJ, Vol. 205, N° 4605 (02/2015)  

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High performance polymers derived from biobased resources / Jeffrey Danneman in COATINGS TECH, Vol. 13, N° 9 (09/2016)  

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High-performance polymers for fibres and fibre-reinforced composites / Thomas Gries in JEC COMPOSITES MAGAZINE, N° 142 (09-10/2021)  

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