期刊
COMPOSITES SCIENCE AND TECHNOLOGY
卷 86, 期 -, 页码 185-191出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.compscitech.2013.06.020
关键词
Nanocomposites; Polymer-matrix composites (PMCs); Thermomechanical properties
资金
- Ministerio de Ciencia e Innovacion of Spain Government [MAT2010-207024-C02-01]
- Direction General de Universidad of Madrid Community [S2009/MAT-1585]
Several conventional techniques for nanofiller dispersion (high shear mixing, calendering, or a combination of the two) based on applying shear mechanical forces were studied in order to analyze their efficiency in manufacturing epoxy resin reinforced with graphene nanoplatelets (GNPs). Both provide composites with uniform GNP distributions although the calendering process also induces partial exfoliation of graphene. High-shear mixing could induce the reduction of flakes' lateral size due to breakage and the rolling of nanoplatelets. Several physical properties of manufactured composites were measured. The density and glass transition temperature increase for composites manufactured by the calendering method due to the steric hindrance of exfoliated graphene nanosheets. Finally, the thermal stability of resin is increased by the addition of GNPs. The degradation temperature is increased up to 20 degrees C for composites manufactured by the calendering method. (c) 2013 Elsevier Ltd. All rights reserved.
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