Fabrication of polypropylene/silver nanocomposites for biocidal applications

dc.creatorOLIANI, WASHINGTON L.
dc.creatorPARRA, DUCLERC F.
dc.creatorKOMATSU, LUIZ G.H.
dc.creatorLINCOPAN, NILTON
dc.creatorRANGARI, VIJAYA K.
dc.creatorLUGAO, ADEMAR B.
dc.date2017
dc.date2017-10-11T12:09:45Z
dc.date2017-10-11T12:09:45Z
dc.date.accessioned2023-09-28T14:03:58Z
dc.date.available2023-09-28T14:03:58Z
dc.identifier0928-4931
dc.identifierhttp://repositorio.ipen.br/handle/123456789/27883
dc.identifier75
dc.identifier10.1016/j.msec.2017.02.109
dc.identifier83.333
dc.identifier.urihttps://repositorioslatinoamericanos.uchile.cl/handle/2250/8998137
dc.descriptionThis paper presents a study on biocidal effect of polymer nanocomposite films of gamma irradiated polypropylene (PP) and silver nanoparticles. The modified polypropylene was obtained from isotactic polypropylene (iPP) in pellets form by irradiation with gamma rays in the presence of acetylene. A new morphology with long chain branching of PP and distinct rheology is obtained by this process. The blend of 50/50 wt neat PP and PP modified by gamma radiation were further mixed using a twin screw extruder. The AgNPs were infused into this polymer blend at different concentrations of: 0.1%; 0.25%; 05%; 1.0%; 1.0% (PVP), 2.0% and 4.0% by wt%. These polymer nanocomposites were characterized by Raman spectroscopy, scanning electron microscopy (SEM), energy dispersive spectroscopy (EDS), thermogravimetric analysis (TG), differential scanning calorimetry (DSC), X-ray diffraction (XRD), transmission electron microscopy (TEM), cytotoxicity test and Kirby-Bauer disk diffusion techniques. The bactericidal effect of Pseudomonas aeruginosa (P. aeruginosa) and Staphylococcus aureus (S. aureus) were assessed in detail.
dc.descriptionCoordena????o de Aperfei??oamento de Pessoal de N??vel Superior (CAPES)
dc.descriptionCAPES: 88887.115684/2016-00
dc.format845-853
dc.relationMaterials Science and Engineering C
dc.rightsopenAccess
dc.subjectnanocomposites
dc.subjectpolypropylene
dc.subjectacetylene
dc.subjectbranching ratio
dc.subjectcalorimetry
dc.subjectconcentration ratio
dc.subjectfabrication
dc.subjectfilms
dc.subjectgamma radiation
dc.subjecttransmission electron microscopy
dc.subjectx-ray diffraction
dc.subjectnanoparticles
dc.subjectpseudomonas
dc.subjectpvp
dc.subjectraman spectroscopy
dc.subjectscanning electron microscopy
dc.subjectsilver
dc.subjectstaphylococcus
dc.subjectthermal gravimetric analysis
dc.subjectx radiation
dc.titleFabrication of polypropylene/silver nanocomposites for biocidal applications
dc.typeArtigo de peri??dico
dc.coverageI


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