RT Journal Article
T1 Effects of silane functionalization of alumina whiskers on high-density polyethylene composites
A1 Ares, Ana Isabel
A1 Lasagabáster Latorre, Aurora
A1 Abad López, María José
A1 Noguerol, Rosalía
A1 Cerecedo Fernández, Carmen
A1 Valcárcel Juárez, Victor Andrés
A1 Caamaño Gesto, José Manuel
A1 Guitián Rivera, Francisco
AB New polyethylene matrix and alumina whiskers composites have been designed in order to combine the processability of common thermoplastics with improved physical properties. This work analyzes the influence of the composite formulation on the morphological, rheological and thermal properties of the new materials. Concerning rheological properties, a significant increase in viscosity and storage modulus is observed for high alumina whiskers content. Furthermore, the whiskers were functionalized with silane coupling agent in order to improve compatibility with the matrix. Two surface treatments were used for comparison purposes, and Fourier transform infrared spectroscopy was applied for evaluating the chemical changes on the surface of whiskers. Pre-treatment with the silane coupling agent brought about beneficial changes in morphology and rheology, related with improved dispersion of whiskers and increased filler–matrix interface. Finally, the inclusion of only 5 wt.% filler, functionalized with 100 wt.% silane, increased the thermal stability of matrix around 37%.
PB SAGE Publications
SN 0021-9983
YR 2014
FD 2014-10-01
LK https://hdl.handle.net/20.500.14352/35394
UL https://hdl.handle.net/20.500.14352/35394
LA eng
NO Article first published online: October 22, 2013;Issue published: October 1, 2014
NO Xunta de Galicia Government-FEDER
NO Program of Consolidation and Structuring Competitive Research Units
DS Docta Complutense
RD 7 may 2024