Affiliation:
1. Programa de Pós-Graduação em Engenharia de Processo e Tecnologias (PGEPROTEC), Universidade de Caxias do Sul (UCS), Rua Francisco Getúlio Vargas , 1130 Bairro Petrópolis , Caxias do Sul 95070-560 , Brazil
Abstract
Abstract
Composites based on commercial thermoplastic polyurethane resin (PU) with three different types of carbon nanotubes (CNT), in 0.5% concentration, were prepared and applied on an AA 7075 aluminum surface. CNT unfunctionalized, CNT functionalized with carboxylic groups, and CNT functionalized with amine groups were tested. The composites were evaluated by optical microscopy, adhesion, impact strength, salt spray, and electrical conductivity. In addition, a wave-guide technique between 8.2 and 12.3 GHz was used to measure the electromagnetic properties of the composites. The results showed that the CNT functionalized with amine group (NH2) presented a good interaction of the PU resin, thus forming a level and uniform film. The analyses of adhesion, direct impact, and salt spray showed that all samples presented excellent performance. Although the samples presented a low electromagnetic performance, an emerging potential for electromagnetic shielding was noticed.
Subject
Materials Chemistry,Polymers and Plastics,General Chemical Engineering
Reference19 articles.
1. Boujadjra BB. Int. J. Fatigue 2015, 80, 128–135.
2. Trabelsi W, Triki E, Dhoubi L, Ferreira MGS, Zheludkevich ML, Montemor MF. Surf. Coat Technol. 2006, 200, 4140–4250.
3. Camargo PHC, Satyanarayana KG, Wypych F. Mater. Res. 2009, 12, 1–39.
4. Vettiger P, Binning G. Sci. Am. 2003, 288, 34–41.
5. Lavall RL, de Sales JA, Borges RS, Calado HDR, Machado JC, Windmöller D, Silva GG, Lacerda RG, Ladeira LO. Quim Nova 2010, 33, 133–140.
Cited by
2 articles.
订阅此论文施引文献
订阅此论文施引文献，注册后可以免费订阅5篇论文的施引文献，订阅后可以查看论文全部施引文献