Propositions de stages – Master 2 MAE

Retrouvez les propositions de stages pour les étudiants de Master M2 MAE :

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Elaboration de bio capteurs electrochimiques a base de grapheneWe interest on the Fabrication of highly sensitive and selective electrochemical biosensors based on carbon nanotubes and graphene materials. The electrochemical biosensors will be fabricated based on carbon nanomaterials (graphene, carbon nanotubes) combining with metallic nanoparticles (Au, Ag, v.v.) to improve the sensitivity and selectivity in the detection of biomarkers as hCG, PSA, glucose, dopamine for clinical diagnosis. We also apply a simple method and novel approaches to prepare carbon nanomaterials and disperse them on the surface of the electrode. The electrodes used in this project are screen printed carbon electrodes, which have advantages of ease of production, high reproducibility, flexible design, low cost, mass product and disposability.Materiaux, electrochimie, experimetateurNguyen Xuan Viet/ Nguyen Xuan Hoanvietnx@vnu.edu.vn Departement de physico chimie - Universite d Hanoi
Etude des propriétés physico-chimiques et de surface de revêtements antifouling marinLe laboratoire MAPIEM (Matériaux-Polymères-Interfaces-Environnement Marin), équipe de recherche (EA 4323) rattachée à la fois à l’Ecole d’ingénieur SeaTech et à l'UFR Sciences & Techniques de l'Université de Toulon, propose un stage._x000D_ _x000D_ L’objectif de ce stage est d’étudier l’effet d'un vieillissement artificiel sur les propriétés de surface et en masse de revêtements antifouling. Ce stage sera réalisé dans le cadre d'un projet de recherche sur le développement de méthodes pour évaluer les performances de revêtements antifouling commerciaux. Différents revêtements seront analysés._x000D_ Le caractère hydrophile/hydrophobe des surfaces des revêtements testés sera évalué par des mesures d'angle de contact (étude de la mouillabilité). Des mesures de rugosité de surface seront réalisées. _x000D_ Expérience dans la caractérisation physico-chimique des matériaux organiques, Capacités de synthèse, de communication et de travail en équipe. - Rigueur dans l’exécution des analyses. - Pratique de l’anglais souhaitée. - Bonne maîtrise des outils informatiques (Word, Excel, ...).Dr. Christine BRESSYchristine.bressy@univ-tln.frLaboratoire MAPIEM (EA 4323)
Préparation de filtres par électrofilature et photopolymérisationL'électrofilature de polymères est une technologie de production des fibres que implique l'utilisation d'une haute tension entre une tête de filage et un collecteur (contre-électrode). Les fibres obtenues ont une taille micro ou nano, maximisant le rapport surface/volume, l'interconnectivité des fibres et les espaces interstitiels. L'électrofilature est ainsi une méthode efficace de produire des nattes fibreuses de polymères synthétiques et naturels, qui trouvent application comme scaffolds pour l'ingénierie tissulaire, systèmes de dosage de médicaments, filtres, emballages alimentaires. Dans le projet, on va coupler électrofilature et photopolymérisation pour la préparation de filtres : en réticulant le polymère formant les fibres on s’attend d’améliorer les propriétés mécaniques des filtres.chimie des polyméres, caracterisation des polymèresRoberta Bongiovanni Alessandra Vitaleroberta.bongiovanni@polito.itPOLYMAT Departement de Science Appliquè et Technologie Politecnico di Torino
Sandwich composites for lightweight high performance applicationsHigh specific strength and stiffness, low weight, excellent thermal insulation, acoustic sampling, and fire retardancy are just some of the excellent properties sandwich structures have to offer in structural applications. Hence, sandwich structures are commonly used in many industries such as aerospace, marine, automobile, locomotive, windmills, building, and consumer industries among others. Despite all these advantages, sandwich composites suffer sensitivity to impact loading damage, and thus are limited in their function. Low energy impact can cause structural damage to the core material, whilst the face sheet remains undamaged. This study will therefore focus on evaluating properties of a new sandwich core material (polyurethane foam) to capture properties and parameters inputs for marine a specific structure modelling and simulation.basics on materials characterisation, materials testing, FEADr James Njugunaj.njuguna@rgu.ac.ukRobert Gordon University, Aberdeen
Transparent impact protection thermoplastic compositesThere is an increasing need of having very stiff and strong materials while being optically transparent in many fields such as body armour protection, bulletproof windows, solar panels, sports or aerospace. In racing cars, there are still concerns on the limitations of the current design of the visor mounted on the helmets. While the helmet is made of state of the art materials such as carbon fibre, Kevlar or Nomex, the visor is made of a monolithic layer of common polycarbonate (PC).The visor has to be able to withstand the impact of small particles travelling at high speed and it has to avoid penetration of bigger and heavier elements in case of an impact. At the same time the visor is required to maintain high levels of transparency and flame resistance while being as lightweight as possible. The proposed study will therefore look into identifying the failure modes present on the visor in case of an impact under varying temperature conditions._x000D_ basics on materials characterisation, materials testing, FEADr James Njugunaj.njuguna@rgu.ac.ukRobert Gordon University, Aberdeen
Compression after impact strength for hybrid compositesPolymer composites have very good energy absorption even better than metals if properly tailored. However, one of the problems in the design of structures and body parts made by carbon fibre reinforced composites (CFRC) is that these materials are susceptible to a small energy impact accidentally which may cause delaminations through the thickness. Dropped tool or stone strike can cause low-energy impact on vehicular body, components and primary structures which results in significant reductions in residual compressive strength. The induced damage is called “barely visible impact damage” (BVID) and is a potential source of mechanical weakness of chassis and structures._x000D_ Nanofillers provide a new way of improving the much desired composites toughness by modifying/improving the properties of an interface. Nanofiller/polymer composites find a wide range of applications, thanks to the ability of the nanofiller to improve the mechanical, chemical, thermal and optical properties of the matrix. Among various nano-fillers, the newest and most studied class of materials is so-called 2-dimensional materials, such as graphene and its derivatives. Though graphene and nanosilica can improve the mechanical, electrical and thermal properties of composites, its efficient processing and interaction with the polymer matrix is still a challenge._x000D_ basics on materials characterisation, materials testing, FEADr James Njugunaj.njuguna@rgu.ac.ukRobert Gordon University, Aberdeen
Development of a lab scale chemical processing plant for improved oil and gas drilling solid waste recovery processThe process of drilling oil and gas wells results in large volumes of waste in the form of drill cuttings and spent mud being produced thus causing various challenges for the industry ranging from rising transportation costs to increasingly restrictive environmental regulations. This has led to technological developments for treating oil and synthetic based cuttings to ensure the environment is safe and clean. _x000D_ _x000D_ This project seeks to critically analyze the solid waste recovery process and recovered solid products with the aim of improving the process for a much more valuable end product.To recover bentonite and other precious minerals from oil and gas industry’s solid waste. The recovered minerals will be used for polymer reinforcement produce polymer powders which can be used to make oil and gas equipment. _x000D_ _x000D_ Conventional drilling cuttings waste treatment focuses on the treatment of drilling cuttings for disposal or disposal and landfill purposes. This project will outline procedures to treat drilling cuttings to produce polymer mineral powders which can be used employed to produce polymers for equipment used in the oil and gas industry (eg. pipes)._x000D_ Materials characterisation, engineering design, Dr James Njugunaj.njuguna@rgu.ac.ukRobert Gordon University, Aberdeen
Etude de membranes amphotères conductrices ioniques à base de polymères pour batteries souples (PMFCE)Les membranes polymères échangeuses de protons (PEM) sont aujourd'hui largement étudiées pour leur fort potentiel à être utilisées dans les piles à combustibles en remplacement du Nafion, référence actuelle, qui présente certaines limites notamment en température. Dans cette perspectives, des membranes originales à base de Polysulfone sulfoné(SPSU) et/ou de Polyetherethercétone sulfoné (SPEEK) ont été élaborées en incorporant différentes charges, fonctionnalisées ou pas, pour en améliorer les propriétés mécaniques. _x000D_ L’objectif de ce travail est de caractériser les propriétés physico-chimiques des nouvelles membranes à base de polymère . Dans un premier temps, il s'agira dd'étudier l’influence de l’incorporation de nanoparticules inorganiques sur les comportements thermiques et thermomécaniques des membranes composites. Les surfaces de nanoparticules pourront être modifiées chimiquement par des agents hydrophiles ou hydrophobes. Dans un second temps, il faudra évaluer ces comportements en fonction de certains paramètres intervenant lors de l’étape d’élaboration._x000D_ gout pour l'expérimentation, curiosité scientifique, autonomie, motivation, esprit critiqueAhmad FAHS/ JF CHAILANchailan@univ-tln.frLaboratoire MAPIEM