High energy mill processing of polymer based nanocomposites

Melo, José Daniel Diniz; Almeida, Cláudio Romero Rodrigues de; Paskocimas, Carlos Alberto; Mendonça, Rannier Marques; Medeiros, Antonio M.

High energy mill processing of polymer based nanocomposites

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dc.contributor.author	Melo, José Daniel Diniz
dc.contributor.author	Almeida, Cláudio Romero Rodrigues de
dc.contributor.author	Paskocimas, Carlos Alberto
dc.contributor.author	Mendonça, Rannier Marques
dc.contributor.author	Medeiros, Antonio M.
dc.date.accessioned	2021-04-13T15:08:08Z
dc.date.available	2021-04-13T15:08:08Z
dc.date.issued	2008-08-07
dc.description.resumo	Polymer matrix nanocomposites have attracted growing attention due to the potential for significantly improving the properties of the polymer by adding a very small amount of nanoparticles. However, the improvement in properties has been related to the degree of dispersion of the nanoparticles in the polymer matrix and, due to their enormous specific surface area, nanoparticles tend to agglomerate. Thus, processing techniques able to produce complete particle dispersion in polymer matrix are of great interest. The purpose of this work is to present a new processing technique for polymer matrix nanocomposites using a high energy mill as an effective approach to disperse ceramic nanoparticles in a polymer matrix. SiO2/epoxy nanocomposites were processed with various SiO2 contents using the proposed approach. Transmission electron microscopy (TEM) micrographs of the nanocomposites processed indicated good particle dispersion. In addition, agglomerates were not observed on the scanning electron microscopy (SEM) fractographs of the nanocomposites, up to 3wt% SiO2. The processed nanocomposites were also characterized by dynamic mechanical analysis (DMA) to investigate the effect of nanoparticles content on the viscoelastic properties and on the glass transition temperature. In summary, the technique was found promising in achieving good levels of particle dispersion in a thermoset polymer matrix	pt_BR
dc.identifier.citation	MELO, José Daniel D.; ALMEIDA, Claudio R.R.; PASKOCIMAS, Carlos A.; MENDONÇA, Rannier M.; MEDEIROS, Antonio M.. High Energy Mill Processing of Polymer Based Nanocomposites. Journal of Composite Materials, [S.L.], v. 42, n. 22, p. 2363-2375, 7 ago. 2008. Disponível em: https://journals.sagepub.com/doi/10.1177/0021998308095885. Acesso em: 08 mar. 2021. http://dx.doi.org/10.1177/0021998308095885.	pt_BR
dc.identifier.issn	10.1177/0021998308095885.
dc.identifier.issn	0021-9983
dc.identifier.issn	1530-793X
dc.identifier.uri	https://repositorio.ufrn.br/handle/123456789/32191
dc.language	en	pt_BR
dc.publisher	SAGE Publications	pt_BR
dc.rights	Attribution-NonCommercial 3.0 Brazil	*
dc.rights.uri	http://creativecommons.org/licenses/by-nc/3.0/br/	*
dc.subject	Nanocomposites	pt_BR
dc.subject	Processing	pt_BR
dc.subject	High Energy Mill	pt_BR
dc.subject	Dynamic Mechanical Analysis	pt_BR
dc.title	High energy mill processing of polymer based nanocomposites	pt_BR
dc.type	article	pt_BR