Tailoring the optical and UV reflectivity of CFRP-epoxy composites: Approaches and selected results

Bibliographic Details
Title: Tailoring the optical and UV reflectivity of CFRP-epoxy composites: Approaches and selected results
Authors: Haiden Lukas, Brunner Andreas J., Pansare Amol V., Feuchter Michael, Pinter Gerald
Source: Science and Engineering of Composite Materials, Vol 30, Iss 1, Pp p. 15-20 (2023)
Publisher Information: De Gruyter, 2023.
Publication Year: 2023
Collection: LCC:Materials of engineering and construction. Mechanics of materials
Subject Terms: cfrp laminates, nanoparticles, electrophoretic deposition, visual and uv reflectivity, Materials of engineering and construction. Mechanics of materials, TA401-492
More Details: Specific nano- and micro-scale morphologies of composites can affect the resulting optical and UV reflectivity of the materials. One example is “Vantablack®” made from aligned carbon nanotubes (CNTs) with 99.96% absorption. A similar material with CNTs grown on surface-activated aluminum (CNTs/sa-Al) even yielded 99.995% absorption, one order of magnitude higher than Vantablack®. On the other hand, fresh snow reflects 90% or more of the incident electromagnetic radiation with wavelengths between 400 and 1,000 nm. The reflectivity of snow originates from multiple scattering in the porous morphology made of snow grains. Taking these complex morphologies as inspiration, CFRP epoxy composites with different types, sizes, shapes, and amount of nanoparticles are prepared and compared regarding their optical and ultraviolet (UV) reflectivity. Increasing the reflectivity in the near and far UV may be beneficial for the durability of the epoxy composites, but selective higher or lower reflectivity in certain wavelength ranges may also yield tailored visual effects. Results from different processing approaches with selected nanoparticles are presented and discussed.
Document Type: article
File Description: electronic resource
Language: English
ISSN: 2191-0359
Relation: https://doaj.org/toc/2191-0359
DOI: 10.1515/secm-2022-0175
Access URL: https://doaj.org/article/54ce0082cc904b5c91b3c0da4389f3c0
Accession Number: edsdoj.54ce0082cc904b5c91b3c0da4389f3c0
Database: Directory of Open Access Journals
More Details
ISSN:21910359
DOI:10.1515/secm-2022-0175
Published in:Science and Engineering of Composite Materials
Language:English