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dc.contributor.author
 hal.structure.identifier
RIQUET, Anne-Marie
135726 Ingénierie Procédés Aliments [GENIAL]
dc.contributor.author
 hal.structure.identifier
DELATTRE, Jennifer
135726 Ingénierie Procédés Aliments [GENIAL]
86289 Procédés et Ingénierie en Mécanique et Matériaux [Paris] [PIMM]
dc.contributor.author
 hal.structure.identifier
VITRAC, Olivier
135726 Ingénierie Procédés Aliments [GENIAL]
dc.contributor.author
 hal.structure.identifier
GUINAULT, Alain
86289 Procédés et Ingénierie en Mécanique et Matériaux [Paris] [PIMM]
213743 PROPRIÉTÉS-ARCHITECTURES DES ALLIAGES ET MÉLANGE [P2AM]
dc.date.accessioned2014
dc.date.available2014
dc.date.issued2013
dc.date.submitted2014
dc.identifier.urihttp://hdl.handle.net/10985/8198
dc.description.abstractSurface modification of polypropylene (PP) sheets was carried out by radiation induced graft polymer- ization of hydrophilic functional molecules such as N,N-dimethylacrylamide (DMA) and [2-methacry- loyloxy)ethyl] trimethylammonium chloride, which is a quaternary ammonium salt (QAS). Polypropylene sheets were activated prior to the grafting reaction by using electron beam radiation. The changes in morphology, crystallinity and tensile parameters like deformation and stress at yield and deformation at break of PP after irradiation were investigated. The results showed that a minor crystalline reorganization takes place during the irradiation of PP at 100 kGy. The grafting has been observed to be strongly dependent on the monomer dilution in the reaction medium. After grafting of QAS (40%) and DMA (20%) it was possible to develop highly hydrophilic surfaces (water contact angle comprised between 30 and 411). The surfaces of virgin, irradiated and grafted PP were studied using polarized optical microscopy (POM) and scanning electron microscopy (SEM). Spherical particles (i.e. polystyrene or silica beads) adhering to the modified samples were studied according to the surface parameters. Adhesion tests confirmed the strong influence of substrate type (mainly hydrophilicity and roughness) and to a lesser extent underlined the role of electrostatic interactions for the design of plastic surfaces for antimicrobial applications.
dc.language.isoen
dc.publisherElsevier
dc.rightsPost-print
dc.subjectPolypropylene
dc.subjectPhysicalproperties
dc.subjectSurface properties
dc.subjectElectron beamirradiation
dc.subjectAdhesion of particles
dc.titleDesign of modified plastic surfaces for antimicrobial applications: Impact of ionizing radiation on the physical and mechanical properties of polypropylene
dc.identifier.doi10.1016/j.radphyschem.2013.04.034
dc.typdocArticles dans des revues avec comité de lecture
dc.localisationCentre de Paris
dc.subject.halSciences de l'ingénieur: Matériaux
dc.subject.halSciences de l'ingénieur: Mécanique
ensam.audienceInternationale
ensam.page170-179
ensam.journalRadiation Physics and Chemistry
ensam.volume91
hal.identifierhal-00997040
hal.version1


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