Application of natural nanoparticles in polymeric blend of HMSPP/SEBS for biocide activity
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2019
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Green Materials Engineering
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Resumo
The natural nanoparticles of CaCO3, from eggshell and CaCO3/Ag, were
investigated as candidates for biocide nanoparticles in a blend of thermoplastic
elastomer, styrene–ethylene/butadiene–styrene (SEBS), and polyolefin, high-meltstrength
polypropylene (HMSPP). The nanoparticles with silver (Ag) were synthesized
by metal precursor method, and before the application in the polymer matrix,
the nanoparticles were analyzed on dynamic lighting scattering (DLS) and Raman
spectroscopy. After DLS and Raman analyses, the nanoparticles were evaluated in
biocide tests against P. aeruginosa and S. auerus. The aim of this investigation was
the blending and the injection molding in dumbbell samples with the nanoparticles.
The characterizations were carried out by differential scanning calorimetry (DSC),
thermogravimetry analysis,mechanical tests, X-ray diffraction, Raman spectroscopy,
scanning electronmicroscopy, and energy-dispersive scanning and biocide tests. Correlation
between size and particle distribution on the polymerwas founded. However,
samples at higher concentrations (>1 wt%) do not show biocide activity.
Como referenciar
KOMATSU, L.G.H.; ZAFALON, A.T.; SANTOS, V.J.; LINCOPAN, N.; RANGARI, V.K.; PARRA, D.F. Application of natural nanoparticles in polymeric blend of HMSPP/SEBS for biocide activity. In: IKHMAYIES, SHADIA (ed.); LI, JIAN (ed.); VIEIRA, CARLOS M.F. (ed.); MARGEM, JEAN I. (ed.); BRAGA, FABIO de O. (ed.). Green Materials Engineering. Cham, CZ, Switzerland: Springer Nature Switzerland AG, 2019. p. 79-87. (The Minerals, Metals & Materials Series). DOI: 10.1007/978-3-030-10383-5_9. Disponível em: http://repositorio.ipen.br/handle/123456789/30083. Acesso em: 29 Mar 2024.
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