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Nanomodifizierte Klebstoffsysteme - Materialverhalten unter realistischen Einsatzbedingungen und fertigungstechnische Aspekte

Bendin, Jonathan and Jux, Maximilian and Mahrholz, Thorsten (2023) Nanomodifizierte Klebstoffsysteme - Materialverhalten unter realistischen Einsatzbedingungen und fertigungstechnische Aspekte. DLR-Interner Bericht. DLR-IB-SY-BS-2023-31. Master's. TU Braunschweig. 158 S.

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Abstract

The aim of this thesis is to develop an adhesive system for the production of wind turbine rotor blades. In addition to the manufacturing aspects, the focus is on mechanical performance under realistic operating conditions. An epoxy resin-based wind energy resin system is used for the adhesive development. In addition, boehmite nanoparticles and short glass fibers are introduced into the resin system as reinforcing fillers. In the course of the paper, the thermal properties (glass transition temperature, crosslinking kinetics, viscosity and thixotropy effect) of the resin system are investigated as a function of the fillers and after water addition. The mechanical performance under static load is examined by means of tensile tests (stiffness, strength and elongation at break). In this context, only minor property degradation due to storage under warm and humid climatic conditions is detected. Furthermore, the adhesives are examined statically (tensile shear strength as a function of adhesive layer thickness) and dynamically (Wöhler curves as a function of temperature) on the basis of overlap bondings. The mechanical properties are evaluated using a comparison with a commercial wind power adhesive. The results have shown that the developed adhesive comes close to the commercial adhesive in terms of both, manufacturing aspects and mechanical properties.

Item URL in elib:https://elib.dlr.de/194426/
Document Type:Monograph (DLR-Interner Bericht, Master's)
Title:Nanomodifizierte Klebstoffsysteme - Materialverhalten unter realistischen Einsatzbedingungen und fertigungstechnische Aspekte
Authors:
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Bendin, JonathanUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Jux, MaximilianUNSPECIFIEDhttps://orcid.org/0000-0002-0175-2875UNSPECIFIED
Mahrholz, ThorstenUNSPECIFIEDhttps://orcid.org/0000-0003-1488-0910UNSPECIFIED
Date:1 March 2023
Refereed publication:No
Open Access:No
Number of Pages:158
Status:Published
Keywords:Wind Energy, Adhesive properties, Boehmite, Glass fiber
Institution:TU Braunschweig
HGF - Research field:Energy
HGF - Program:Materials and Technologies for the Energy Transition
HGF - Program Themes:Photovoltaics and Wind Energy
DLR - Research area:Energy
DLR - Program:E SW - Solar and Wind Energy
DLR - Research theme (Project):E - Wind Energy
Location: Braunschweig
Institutes and Institutions:Institut für Systemleichtbau > Multifunctional Materials
Deposited By: Schlegel, Linda
Deposited On:27 Mar 2023 08:21
Last Modified:27 Mar 2023 08:21

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