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Effect of Particle-Surface-Modification on the Failure Behavior of Epoxy/Boehmite CFRPs

Jux, Maximilian and Sinapius, Johannes Michael (2021) Effect of Particle-Surface-Modification on the Failure Behavior of Epoxy/Boehmite CFRPs. In: Acting Principles of Nano-Scaled Matrix Additives for Composite Structures Springer Research Topics in Aerospace, 6 (1). Springer, Cham. pp. 411-431. doi: 10.1007/978-3-030-68523-2. ISBN 978-3-030-68523-2. ISSN 2194-8259.

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Official URL: https://link.springer.com/chapter/10.1007/978-3-030-68523-2_18


This chapter deals with the effect of particle content (up to 15 wt%) and particle surface modification on the mechanical properties (tensile properties and fracture toughness) of epoxy/boehmite composites. Furthermore, the failure behavior of epoxy/boehmite carbon fiber reinforced polymers (CFRPs) is investigated with compression after impact (CAI) tests at a constant fiber volume fraction of approximately 60 vol%. The CFRPs are fabricated by the Resin Transfer Moulding (RTM) method. To investigate the effect of particle-matrix-interaction, boehmite nanoparticles with different surface modifications (carboxylic acids and (3-aminopropyl)-triethoxysilane) are used. The epoxy/boehmite masterbatches used for the preparation of the specimens are characterized concerning particle sizes and surface loadings to ensure a comparability of the test results. The used masterbatches possess nearly the same size distributions and surface loadings. In addition viscosity measurements showed that the processability of the modified resins is strongly affected by modifying the surface of the boehmite particles. The mechanical tests show that the examined mechanical properties of the epoxy/boehmite composites as well as the failure behavior of the epoxy/boehmite CFRPs are mainly influenced by the filler content. The effect of particle surface modification is visible in particular for tensile modulus of the epoxy/boehmite composites. In addition, it is found that there is only a minor effect of surface modification on the compression strength after impact.

Item URL in elib:https://elib.dlr.de/142617/
Document Type:Book Section
Title:Effect of Particle-Surface-Modification on the Failure Behavior of Epoxy/Boehmite CFRPs
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Jux, MaximilianMaximilian.Jux (at) dlr.dehttps://orcid.org/0000-0002-0175-2875
Sinapius, Johannes Michaelm.sinapius (at) tu-braunschweig.dehttps://orcid.org/0000-0002-1873-9140
Date:May 2021
Journal or Publication Title:Acting Principles of Nano-Scaled Matrix Additives for Composite Structures
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In ISI Web of Science:No
DOI :10.1007/978-3-030-68523-2
Page Range:pp. 411-431
EditorsEmailEditor's ORCID iD
Sinapius, Johannes Michaelm.sinapius@tu-braunschweig.dehttps://orcid.org/0000-0002-1873-9140
Ziegmann, Gerhardziegmann@puk.tu-clausthal.dehttps://orcid.org/0000-0001-7914-8574
Publisher:Springer, Cham
Series Name:Springer Research Topics in Aerospace
Keywords:Tensile properties, Fracture toughness, Failure behaviour, Compression strength after impact / CAI, Resin transfer moulding (RTM), Boehmite nanoparticles, Surface modification, Masterbatch, Processability, Delamination, Fiber/Carbon-fiber reinforced composite (FRP/CFRP), Particle-matrix-interaction
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Aeronautics
HGF - Program Themes:Clean Propulsion
DLR - Research area:Aeronautics
DLR - Program:L CP - Clean Propulsion
DLR - Research theme (Project):L - Advanced Materials and New Manufacturing Technologies
Location: Braunschweig
Institutes and Institutions:Institute of Composite Structures and Adaptive Systems > Multifunctional Materials
Deposited By: Jux, Maximilian
Deposited On:21 Jun 2021 08:37
Last Modified:21 Jun 2021 08:37

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