Valea Kim Wisniewski
Current Organizations / Institutes
The organizations/institutes from the scholar's latest article
Research Subjects
Valea Kim Wisniewski has a total of 31 co-authors. Here are the top co-authors by number of shared publications:
- Bodo Fiedler
Institute of Polymers and Composites Hamburg University of Technology Hamburg Germany
4 shared publications - Hauke Meeuw
Institute of Polymer and Composites, Hamburg University of Technology (TUHH), Denickestr. 15, 20173 Hamburg, Germany
3 shared publications A. R. Vázquez
Technische Universität Dresden
1 shared publicationA. S. Nia
Technische Universität Dresden
1 shared publication- Adrián Romaní Vázquez
Center for Advancing Electronics Dresden (CFAED) & Chair of Molecular Functional Materials, Faculty of Chemistry and Food Chemistry, Technische Universität Dresden, Helmholtzstraße 10, 01069, Dresden, Germany
1 shared publication - Ali Shaygan Nia
Chair for Molecular Functional Materials and Center for Advancing Electronics Dresden (cfaed), Technische Universität Dresden, Mommsenstraße 4, 01069 Dresden, Germany
1 shared publication
Latest Publications
- Open Access
- 12 December 2025
- Published by Elsevier in Composites Part B: Engineering
- Vol. 312
Exploring the repairing capabilities of high-performance glass fiber reinforced vitrimer composites
- 12 December 2025
- Published by Elsevier in Composites Part B: Engineering
- Vol. 312
Open AccessExploring the repairing capabilities of high-performance glass fiber reinforced vitrimer composites
- Open Access
- 9 April 2022
- Published by Elsevier in Additive Manufacturing
- Vol. 55
Solid epoxy for functional 3D printing with isotropic mechanical properties by material extrusion
- 9 April 2022
- Published by Elsevier in Additive Manufacturing
- Vol. 55
Open AccessSolid epoxy for functional 3D printing with isotropic mechanical properties by material extrusion
- Open Access
- 20 September 2021
- Published by Royal Society of Chemistry (RSC) in Catalysis Science & Technology
- Vol. 11 (20) , 6649-6653
Superior CNT-supported bimetallic RuCu catalyst for the highly selective hydrogenolysis of glycerol to 1,2-propanediol
Surface modification using Cu significantly improves the performance of Ru/MWCNT catalysts for the selective production of 1,2-PD up to (93.4%) from glycerol hydrogenolysis.
- 20 September 2021
- Published by Royal Society of Chemistry (RSC) in Catalysis Science & Technology
- Vol. 11 (20) , 6649-6653
Open AccessSuperior CNT-supported bimetallic RuCu catalyst for the highly selective hydrogenolysis of glycerol to 1,2-propanediol
Surface modification using Cu significantly improves the performance of Ru/MWCNT catalysts for the selective production of 1,2-PD up to (93.4%) from glycerol hydrogenolysis.
- Open Access
Carbon Nanoparticles’ Impact on Processability and Physical Properties of Epoxy Resins—A Comprehensive Study Covering Rheological, Electrical, Thermo-Mechanical, and Fracture Properties (Mode I and II)
A trade-off between enhancement of physical properties of the final part and the processability during manufacturing always exists for the application of nanocarbon materials in thermoset-based composites. For different epoxy resins, this study elaborates the impact of nanocarbon particle type, functionalization, and filler loading on the resulting properties, i.e., rheological, electrical, thermo-mechanical, as well as the fracture toughness in mode I and mode II loading. Therefore, a comprehensive set of carbon nanoparticles, consisting of carbon black (CB), single-walled carbon nanotubes (SWCNT), multi-walled carbon nanotubes (MWCNT), few layer graphene (FLG), and electrochemically expanded graphite (ExG), in purified or functionalized configuration was introduced in various epoxy resins, with different molecular weight distributions. A novel technique to introduce sharp cracks into single-edge notched bending (SENB) fracture toughness specimens led to true values. SWCNT show highest potential for increasing electrical properties without an increase in viscosity. Functionalized MWCNT and planar particles significantly increase the fracture toughness in mode I by a factor of two.
Open AccessCarbon Nanoparticles’ Impact on Processability and Physical Properties of Epoxy Resins—A Comprehensive Study Covering Rheological, Electrical, Thermo-Mechanical, and Fracture Properties (Mode I and II)
A trade-off between enhancement of physical properties of the final part and the processability during manufacturing always exists for the application of nanocarbon materials in thermoset-based composites. For different epoxy resins, this study elaborates the impact of nanocarbon particle type, functionalization, and filler loading on the resulting properties, i.e., rheological, electrical, thermo-mechanical, as well as the fracture toughness in mode I and mode II loading. Therefore, a comprehensive set of carbon nanoparticles, consisting of carbon black (CB), single-walled carbon nanotubes (SWCNT), multi-walled carbon nanotubes (MWCNT), few layer graphene (FLG), and electrochemically expanded graphite (ExG), in purified or functionalized configuration was introduced in various epoxy resins, with different molecular weight distributions. A novel technique to introduce sharp cracks into single-edge notched bending (SENB) fracture toughness specimens led to true values. SWCNT show highest potential for increasing electrical properties without an increase in viscosity. Functionalized MWCNT and planar particles significantly increase the fracture toughness in mode I by a factor of two.
- 25 January 2019
- Published by Springer Nature in Production Engineering
- Vol. 13 (3-4) , 373-390
In-line monitoring of carbon nanoparticle epoxy dispersion processes
- 25 January 2019
- Published by Springer Nature in Production Engineering
- Vol. 13 (3-4) , 373-390
In-line monitoring of carbon nanoparticle epoxy dispersion processes
- Open Access
Frequency or Amplitude?—Rheo-Electrical Characterization of Carbon Nanoparticle Filled Epoxy Systems
Dispersion of carbon nanoparticles in epoxy resin is the key factor to adjust the resulting electrical and mechanical properties of the nanocomposite. A profound understanding of the driving forces of standard methods like ultrasonic and mechanical dispersion is necessary. To derive the impact of applied frequency and strain on the resulting dispersion of multi-walled carbon nanotube (MWCNT)-filled epoxy resin, this work addresses the strain and frequency dependency of oscillatory shear flow-induced network changes. Strain- and frequency-sweeps were performed for a wide parameter set with in-line measurement of electrical DC resistance to monitor changes in the MWCNT network. Changes in electrical resistance reveal destruction and formation of the MWCNT network. A fundamental novel finding is the governing dependency of changes in the electrical network on applied shear amplitude. The applied frequency barely induces network changes. Applied shear rates do not correlate with particular network states.
Open AccessFrequency or Amplitude?—Rheo-Electrical Characterization of Carbon Nanoparticle Filled Epoxy Systems
Dispersion of carbon nanoparticles in epoxy resin is the key factor to adjust the resulting electrical and mechanical properties of the nanocomposite. A profound understanding of the driving forces of standard methods like ultrasonic and mechanical dispersion is necessary. To derive the impact of applied frequency and strain on the resulting dispersion of multi-walled carbon nanotube (MWCNT)-filled epoxy resin, this work addresses the strain and frequency dependency of oscillatory shear flow-induced network changes. Strain- and frequency-sweeps were performed for a wide parameter set with in-line measurement of electrical DC resistance to monitor changes in the MWCNT network. Changes in electrical resistance reveal destruction and formation of the MWCNT network. A fundamental novel finding is the governing dependency of changes in the electrical network on applied shear amplitude. The applied frequency barely induces network changes. Applied shear rates do not correlate with particular network states.