Autor segons l'article: Isarn I; Ferrando F; Serra À; Urbina C
Departament: Enginyeria Mecànica Química Analítica i Química Orgànica
e-ISSN: 1099-1581
Autor/s de la URV: Ferrando Piera, Francesc / Serra Albet, Maria Angels / Urbina Pons, Cristina Victoria
Paraules clau: Thermal conductivity Polymer composites Mechanical properties Epoxy resins Boron nitride
Resum: © 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%.
Àrees temàtiques: Química Polymers and plastics Polymer science Materiais Interdisciplinar Engenharias ii Ciência de alimentos Biotecnología Astronomia / física
Accès a la llicència d'ús: https://creativecommons.org/licenses/by/3.0/es/
ISSN: 1042-7147
Adreça de correu electrònic de l'autor: f.ferrando@urv.cat cristinavictoria.urbina@urv.cat angels.serra@urv.cat
Identificador de l'autor: 0000-0003-4450-2734 0000-0002-4679-7778 0000-0003-1387-0358
Data d'alta del registre: 2023-02-19
Versió de l'article dipositat: info:eu-repo/semantics/submittedVersion
Enllaç font original: https://onlinelibrary.wiley.com/doi/abs/10.1002/pat.5184
Referència a l'article segons font original: Polymers For Advanced Technologies. (4): 1485-1492
Referència 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
URL Document de llicència: https://repositori.urv.cat/ca/proteccio-de-dades/
DOI de l'article: 10.1002/pat.5184
Entitat: Universitat Rovira i Virgili
Any de publicació de la revista: 2021
Tipus de publicació: Journal Publications
Repositori URV