Autor según el artículo: Isarn I; Ferrando F; Serra À; Urbina C

Departamento: Enginyeria Mecànica Química Analítica i Química Orgànica

e-ISSN: 1099-1581

Autor/es de la URV: Ferrando Piera, Francesc / Serra Albet, Maria Angels / Urbina Pons, Cristina Victoria

Palabras clave: Thermal conductivity Polymer composites Mechanical properties Epoxy resins Boron nitride

Resumen: © 2020 John Wiley & Sons Ltd A new series of high thermal boron nitride (BN) composites are prepared and characterized by several techniques. They are formed by an epoxy-anhydride matrix and different BN contents, ranging from 30 to 80 wt%, of 120 μm agglomerates. For high BN ratio (≥60 wt%), epoxy mixtures were compressed (75 MPa) during 1 minute before curing, eliminating voids due to the high increase of viscosity, improving the compactness of the material and enhancing the thermal conductivity (TC). The curing process evolution was studied by calorimetric measurements to see if there was an influence of the filler on the curing rate. Rheological tests were performed to obtain the percolation threshold. It was observed that BN filler did not affect negatively the thermomechanical properties of the materials and allowed to enhance the TC from 0.17 W/m K in the case of the neat epoxy, to 3.06 W/m K when 80 wt% of BN agglomerates were added, which represents an improvement of 1700%.

Áreas temáticas: Química Polymers and plastics Polymer science Materiais Interdisciplinar Engenharias ii Ciência de alimentos Biotecnología Astronomia / física

Acceso a la licencia de uso: https://creativecommons.org/licenses/by/3.0/es/

ISSN: 1042-7147

Direcció de correo del autor: f.ferrando@urv.cat cristinavictoria.urbina@urv.cat angels.serra@urv.cat

Identificador del autor: 0000-0003-4450-2734 0000-0002-4679-7778 0000-0003-1387-0358

Fecha de alta del registro: 2023-02-19

Versión del articulo depositado: info:eu-repo/semantics/submittedVersion

Enlace a la fuente original: https://onlinelibrary.wiley.com/doi/abs/10.1002/pat.5184

URL Documento de licencia: http://repositori.urv.cat/ca/proteccio-de-dades/

Referencia al articulo segun fuente origial: Polymers For Advanced Technologies. (4): 1485-1492

Referencia de l'ítem segons les normes APA: Isarn I; Ferrando F; Serra À; Urbina C (2021). Novel BN-epoxy/anhydride composites with enhanced thermal conductivity. Polymers For Advanced Technologies, (4), 1485-1492. DOI: 10.1002/pat.5184

DOI del artículo: 10.1002/pat.5184

Entidad: Universitat Rovira i Virgili

Año de publicación de la revista: 2021

Tipo de publicación: Journal Publications