RT info:eu-repo/semantics/article
T1 Boron nitride-reinforced porous aramid composites with enhanced mechanical performance and thermal conductivity
A1 Rubio Aguinaga, Andrea
A1 Reglero Ruiz, José Antonio
A1 García Gómez, Alejandra
A1 Peña Martín, Elisa
A1 Ando, Shinji
A1 Muñoz Santamaría, María Asunción
A1 García Pérez, José Miguel
A1 Trigo López, Miriam
K1 Particle-reinforced composites
K1 Mechanical properties
K1 Elastic properties
K1 Scanning electron microscopy (SEM)
K1 Polymer solution casting
K1 Química inorgánica
K1 Chemistry, Inorganic
K1 Materiales
K1 Materials
K1 Polímeros
K1 Polymers
AB Aramids are materials with high-performance properties and used in advanced applications, including bulletproof vests and aerospace industry components. Consequently, research is focused on improving their properties and reducing their density to achieve fuel reduction and enhanced comfort. Herein we describe the preparation of dense, micro, and nanoporous aramid films containing hexagonal boron nitride (hBN) with two objectives: improving mechanical performance and increasing thermal conductivity (TC) in porous films for specific applications. The preparation procedure is simple and scalable, involving the addition of hBN and a porosity promoter to control the porous structure in the film's casting solution. Tensile tests revealed that the inclusion of 10% of hBN in microporous aramids led to a 130% increase in Young's modulus and 63% reduction in material's density compared to the dense commercial aramid. The orientation of the hBN in the films was also evaluated by considering the XRD and the thermal properties of the films. The films containing hBN exhibited enhanced TC and thermal diffusivity (TD) together with a very low density and improved mechanical performance, which can benefit applications in the aerospace industry, protective equipment, and battery separators.
PB Elsevier
SN 0266-3538
YR 2023
FD 2023-09-29
LK http://hdl.handle.net/10259/9277
UL http://hdl.handle.net/10259/9277
LA eng
NO This work was supported by the Regional Government of Castilla y León (Junta de Castilla y León), the Ministry of Science and Innovation MICIN and the European Union NextGenerationEU/PRTR, and the Spanish Agencia Estatal de Investigación (State Research Agency) (PID2019-108583RJ-I00/AEI/10.13039/501100011033).
DS Repositorio Institucional de la Universidad de Burgos
RD 17-jul-2024