| Texto completo | |
| Autor(es): |
de Campos, Beatriz M.
[1]
;
Calefi, Paulo S.
[1]
;
Ciuffi, Katia J.
[1]
;
de Faria, Emerson H.
[1]
;
Rocha, Lucas A.
[1]
;
Nassar, Eduardo J.
[1]
;
Silva, Jorge V. L.
[2]
;
Oliveira, Marcelo F.
[2]
;
Maia, Izaque A.
[2]
Número total de Autores: 9
|
| Afiliação do(s) autor(es): | [1] Univ Franca, BR-14404600 Franca - Brazil
[2] Ctr Tecnol Informacao Renato Archer, BR-13069901 Campinas, SP - Brazil
Número total de Afiliações: 2
|
| Tipo de documento: | Artigo Científico |
| Fonte: | JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY; v. 115, n. 2, p. 1029-1035, FEB 2014. |
| Citações Web of Science: | 5 |
| Resumo | |
The combination of sol-gel methodology with rapid prototyping (RP) produces functionalized 3D structures with potential applications in various fields. However, this combination has been little explored. In this paper, we used the sol-gel method to deposit vanadium isopropoxide onto polyamide (PA12) constructed by RP and pretreated with acetic acid, to obtain a functionalized substrate with new thermal, physical, and chemical properties. Vanadium isopropoxide (one, five, or ten layers) was deposited onto the PA12 piece by dip-coating. We characterized the coated PA12 by thermal analyses, X-ray diffraction, and infrared spectroscopy, which revealed that V=O and Si-O-Si groups exist on the PA12 surface. PA12 coating with vanadium isopropoxide enhanced the decomposition temperature. Differential scanning calorimetry revealed increased fusion and decomposition enthalpy as a function of the PA12 coating. Therefore, deposition of vanadium isopropoxide onto PA12 pretreated with acetic acid improves the thermal stability of PA12 prepared by RP. (AU) | |
| Processo FAPESP: | 08/09695-3 - Revestimento de peças obtidas por prototipagem rápida utilizando a metodologia sol-gel. |
| Beneficiário: | Beatriz Morante de Campos |
| Modalidade de apoio: | Bolsas no Brasil - Iniciação Científica |
| Processo FAPESP: | 12/11673-3 - Obtenção de filmes finos por spin e dip-coating usando a metodologia sol-gel |
| Beneficiário: | Eduardo José Nassar |
| Modalidade de apoio: | Auxílio à Pesquisa - Regular |