• 文献标题:   In situ processing of epoxy composites reinforced with graphene nanoplatelets
  • 文献类型:   Article
  • 作  者:   PROLONGO SG, JIMENEZSUAREZ A, MORICHE R, URENA A
  • 作者关键词:   nanocomposite, polymermatrix composites pmcs, thermomechanical propertie
  • 出版物名称:   COMPOSITES SCIENCE TECHNOLOGY
  • ISSN:   0266-3538 EI 1879-1050
  • 通讯作者地址:   Univ Rey Juan Carlos
  • 被引频次:   55
  • DOI:   10.1016/j.compscitech.2013.06.020
  • 出版年:   2013

▎ 摘  要

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.