Influence of the incorporation of different chemically functionalized carbon nanotubes in polyurethane resin applied on aluminum
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Gabriela Gobbi
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.
Funding: The authors would like to thank for the financial support of CAPES (Brazilian Coordination for the improvement of higher education personnel) and CNPq (the Brazilian National Council for Scientific and Technological Development).
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©2019 Walter de Gruyter GmbH, Berlin/Boston
Artikel in diesem Heft
- Frontmatter
- Material properties
- Chitosan as an emerging object for biological and biomedical applications
- Investigation of the properties of polystyrene-based wood plastic composites: effects of the flame retardant loading and magnetic fields
- An attempt to correlate the physical properties of fossil and subfossil resins with their age and geographic location
- Effect of heat treatment on the thermophysical properties of copper-powder-filled polycarbonate and polycarbonate containing paraffin
- Preparation and assembly
- Preparation of hydrophilic reactive polyurethane and its application of anti-water erodibility in ecological restoration
- Antimicrobial gelatin/sericin/clay films for packaging of hygiene products
- Functional sol-gel coated electrospun polyamide 6,6/ZnO composite nanofibers
- Influence of the incorporation of different chemically functionalized carbon nanotubes in polyurethane resin applied on aluminum
- Engineering and processing
- Influence of shrinkage of polymer on the stationarity of propagation of frontal polymerization heat waves
- Influence of titanium oxide-based colourants on the morphological and tribomechanical properties of injection-moulded polyoxymethylene spur gears
Artikel in diesem Heft
- Frontmatter
- Material properties
- Chitosan as an emerging object for biological and biomedical applications
- Investigation of the properties of polystyrene-based wood plastic composites: effects of the flame retardant loading and magnetic fields
- An attempt to correlate the physical properties of fossil and subfossil resins with their age and geographic location
- Effect of heat treatment on the thermophysical properties of copper-powder-filled polycarbonate and polycarbonate containing paraffin
- Preparation and assembly
- Preparation of hydrophilic reactive polyurethane and its application of anti-water erodibility in ecological restoration
- Antimicrobial gelatin/sericin/clay films for packaging of hygiene products
- Functional sol-gel coated electrospun polyamide 6,6/ZnO composite nanofibers
- Influence of the incorporation of different chemically functionalized carbon nanotubes in polyurethane resin applied on aluminum
- Engineering and processing
- Influence of shrinkage of polymer on the stationarity of propagation of frontal polymerization heat waves
- Influence of titanium oxide-based colourants on the morphological and tribomechanical properties of injection-moulded polyoxymethylene spur gears
