Graphene-modified epoxy resin for radome applications
|Coordinator||Swerea SICOMP AB - Swerea SICOMP AB, Piteå|
|Funding from Vinnova||SEK 300 000|
|Project duration||March 2017 - December 2017|
Purpose and goal
This feasibility project aims to verify the concept to develop graphene-modified epoxy resin with improved mechanical properties and radar signal transmission as well as tailored dielectric properties as an advanced matrix in glass fibre reinforced polymer composites for aircraft radomes. The specific goals to process graphene modified epoxy, to characterize its mechanical and electrical properties, and to analyze the potential of the materials and technologies towards aircraft industrial application and commercial production, were reached.
Expected results and effects
Graphene, differing in nanoplatelets dimension and surface functionalization, was incorporated into epoxy resin successfully using different dispersion techniques. It enhanced flexural properties and toughness marginally and modified dielectric properties of resulted epoxy. The maximum content of graphene should be 1 wt% in order to use the modified epoxy for radomes. Properties can be further improved by appropriate functionalization and sufficient dispersion of graphene. The results and conclusions are very interesting and important for continuation of the work.
Planned approach and implementation
SICOMP and INEGI with competence for (nano)composites processing and characterization processed graphene-modified epoxies and measured their mechanical properties. FOI with competence for dielectric characterization measured the electrical properties of resulting materials. GKN-ACAB as a commercial end user for developing and manufacturing radomes evaluated the technical and commercial feasibility of using such modified resins in industrial production and products. Future work to improve modification efficiency and apply results was discussed by all partners.