Добірка наукової літератури з теми "PEEK - Poly éther éther cétone"
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Статті в журналах з теми "PEEK - Poly éther éther cétone"
Courvoisier, Emilie, Yoann Bicaba, and Xavier Colin. "Analyse de la dégradation thermique du Poly(éther éther cétone)." Matériaux & Techniques 105, no. 4 (2017): 403. http://dx.doi.org/10.1051/mattech/2018007.
Повний текст джерелаДисертації з теми "PEEK - Poly éther éther cétone"
Osegueda, Juan. "Synthèse et caractérisation de poly(aryl éther cétone amide)s." Thesis, Rouen, INSA, 2016. http://www.theses.fr/2016ISAM0022/document.
Повний текст джерелаSome demanding applications (especially in aerospace) require more and more semi-crystalline thermostable polymers with high temperature resistance and durability (Tg above 170 °C) while maintaining good processing properties (Tm not exceeding 350°C) suitable for industrial manufacturing.This work deals with the synthesis and characterization of new high performance poly(aryl ether ketone amide)s polymers from an EKKE monomer with carboxylic acid extremities. Thus, three amide condensation synthetic routes were studied: between carboxylic acids and isocyanates, between acyl chlorides and amines, and between carboxylic acids and amines by phosphorylation. The thermal properties and their correlation with the chemical structures of the obtained aromatic and semi-aromatic poly(aryl ether ketone amide)s are compared and especially detailed
Willeman, Héloïse. "Multi-scale characterization of deformation mechanisms of poly-ether-ether-ketone (PEEK) under tensile stretching." Electronic Thesis or Diss., Lyon, INSA, 2023. http://www.theses.fr/2023ISAL0006.
Повний текст джерелаThe aim of this PhD work is accessing the microscopic deformation mechanisms of bulk poly-ether-ether-ketone (PEEK) under tensile stretching. Beforehand, the thermal and mechanical properties of two commercial grades of PEEK were characterized. Tensile specimens were then compression-molded to obtain morphologies as isotropic as possible and characterized below and above the glass transition temperature. Deformations at the scales of lamellar stacks and of the crystalline unit cell have been characterized by small and wide-angle X-ray scattering (SAXS and WAXS) performed in-situ during tensile tests. Simultaneously, the strain field within the samples was followed by digital image correlation (DIC) in order to compare microscopic and macroscopic strains. At both temperatures, lamellae tend to orient perpendicular to the tensile direction (TD). This orientation mechanism (which we denote as ‘Chain Network model’) is driven by the amorphous chains which transmit the stress between adjacent lamellae. The tensile strain in lamellar stacks perpendicular to TD is lower than the macroscopic tensile strain, which must be compensated by increased shear in inclined stacks. Some differences of behavior have been observed depending on the test temperature, especially at high deformation. A highly oriented morphology is ultimately obtained in all cases. However, the central scattering profiles changes with testing temperatures. Below Tg, the presence of small entities randomly oriented is indicated. Above Tg, the material is fibrillar and contains cavities
Bas, Corine. "Microstructure et propriétés thermomécaniques du poly(aryl éther éther cetone) (peek) amorphe et semi-cristallin." Chambéry, 1994. http://www.theses.fr/1994CHAMS026.
Повний текст джерелаFranbourg, Alain. "Influence d'un traitement à l'état fondu sur la structure cristalline et les propriétés mécaniques du poly(oxymethylène) et du poly(éther éther cétone) : relations : mise en oeuvre par injection/structure/propriétés." Lille 1, 1990. http://www.theses.fr/1990LIL10091.
Повний текст джерелаPavlenko, Ekaterina. "Probing interaction and dispersion of carbon nanotubes in metal and polymer matrices." Toulouse 3, 2014. http://thesesups.ups-tlse.fr/2586/.
Повний текст джерелаThe incorporation of carbon nanotubes (CNTs) into polymers and metals modifies their intrinsic properties. Dispersing CNTs uniformly in a matrix remains challenging due to strong tube agglomeration. Raman spectroscopy is a compelling technique to detect the presence of CNTs and their interaction with the environment. In this work, Raman spectroscopy is applied in association with other techniques to investigate CNTs in a metallic or polymer matrix. Doping with superacids, analysis of defects in friction wear and CNT dispersion are investigated. Statistical analysis of Raman images are used to generate histograms of Raman bands maps in order to estimate the amount of CNTs and their dispersion. The diffusion of a Poly (Ether Ether Ketone) PEEK thermoplastic polymer into agglomerated carbon nanotubes when annealing on the surface of a polymer sheet is studied by Raman imaging and transmission electron microscopy. Electronic transport measurements as a function of temperature and CNT concentration show high electrical conductivity consistent with the formation of a uniform percolating CNT network