Zobrazeno 1 - 10
of 61
pro vyhledávání: '"Harald Rennhofer"'
Autor:
Christina Enengl, Alexander Lumetzberger, Jiri Duchoslav, Cezarina C. Mardare, Leon Ploszczanski, Harald Rennhofer, Christoph Unterweger, David Stifter, Christian Fürst
Publikováno v:
Carbon Trends, Vol 5, Iss , Pp 100094- (2021)
Lignin is an interesting renewable resource for carbon fibers. In this work we investigate the usage of unpurified softwood kraft lignin Indulin AT for melt-spinning of lignin-fibers and the properties of resulting lignin and carbon fibers. Indulin A
Externí odkaz:
https://doaj.org/article/cdb31cd156af4ba58cbecde577120790
Autor:
Flavia Millesi, Sascha Mero, Lorenz Semmler, Anda Mann, Paul Supper, Maximilian Haertinger, Sarah Stadlmayr, Ursula Windberger, Harald Rennhofer, Leon Ploszczanski, Tamara Weiss, Aida Naghilou, Christine Radtke
Publikováno v:
Plastic and Reconstructive Surgery, Global Open, Vol 10, Iss 1S, Pp 7-7 (2022)
Externí odkaz:
https://doaj.org/article/914a981471f248a9bf99af37910f426c
Autor:
Harald Rennhofer, Benjamin Zanghellini
Publikováno v:
Nanomaterials, Vol 11, Iss 6, p 1469 (2021)
Dispersion of carbon nanotubes and carbon nanofibers is a crucial processing step in the production of polymer-based nanocomposites and poses a great challenge due to the tendency of these nanofillers to agglomerate. Besides the well-established thre
Externí odkaz:
https://doaj.org/article/8bddbfc0c1d343e9bef3669d7c80dcc3
Autor:
Harald Rennhofer, Janea Köhnke, Jozef Keckes, Johannes Tintner, Christoph Unterweger, Thomas Zinn, Karl Deix, Helga Lichtenegger, Wolfgang Gindl-Altmutter
Publikováno v:
Molecules, Vol 26, Iss 7, p 2087 (2021)
Application of low-cost carbon black from lignin highly depends on the materials properties, which might by determined by raw material and processing conditions. Four different technical lignins were subjected to thermostabilization followed by stepw
Externí odkaz:
https://doaj.org/article/daad908c61f14ca1890ff1f8c931ef54
Autor:
Christian Schuster, Harald Rennhofer, Heinz Amenitsch, Helga C. Lichtenegger, Alois Jungbauer, Rupert Tscheliessing
Publikováno v:
Nanomaterials, Vol 11, Iss 3, p 589 (2021)
Nanostructured metal assemblies on thin and ultrathin polymeric films enable state of the art technologies and have further potential in diverse fields. Rational design of the structure–function relationship is of critical importance but aggravated
Externí odkaz:
https://doaj.org/article/2f31bb2b8d7844dab3056e630e7e207e
Autor:
Benjamin Zanghellini, Patrick Knaack, Sebastian Schörpf, Karl-Heinz Semlitsch, Helga C. Lichtenegger, Bernhard Praher, Maria Omastova, Harald Rennhofer
Publikováno v:
Polymers, Vol 13, Iss 2, p 308 (2021)
Dispersion of carbon nanotubes and carbon nanofibers is a crucial processing step in the production of polymer-based nanocomposites and poses a great challenge due to the tendency of nanofillers to agglomerate. One of the most effective methods for d
Externí odkaz:
https://doaj.org/article/5df233362cd6480396eec83851e91a9f
Autor:
Janea Köhnke, Harald Rennhofer, Christoph Unterweger, Notburga Gierlinger, Jozef Keckes, Cordt Zollfrank, Orlando J. Rojas, Wolfgang Gindl-Altmutter
Publikováno v:
Nanomaterials, Vol 8, Iss 12, p 1055 (2018)
Carbon particles were produced from kraft lignin through carbonization of perfectly spherical, sub-micron beads obtained by aerosol flow. The structure of the resulting carbon particles was elucidated and compared to that derived from commercially av
Externí odkaz:
https://doaj.org/article/f29c69d23cb547ac984314f68c23a2d3
Autor:
Gerald Singer, Philipp Siedlaczek, Gerhard Sinn, Harald Rennhofer, Matej Mičušík, Maria Omastová, Miriam M. Unterlass, Josef Wendrinsky, Valeria Milotti, Filippo Fedi, Thomas Pichler, Helga C. Lichtenegger
Publikováno v:
Nanomaterials, Vol 8, Iss 11, p 912 (2018)
Carbon nanotubes (CNT) provide an outstanding property spectrum which can be used to improve a wide range of materials. However, the transfer of properties from the nanoscale to a macroscopic material is a limiting factor. Different approaches of fun
Externí odkaz:
https://doaj.org/article/cf00abf8533a424fae38cb6c3181a2d5
Autor:
Janea Köhnke, Christian Fürst, Christoph Unterweger, Harald Rennhofer, Helga C. Lichtenegger, Jozef Keckes, Gerhard Emsenhuber, Arunjunai raj Mahendran, Falk Liebner, Wolfgang Gindl-Altmutter
Publikováno v:
Polymers, Vol 8, Iss 6, p 205 (2016)
Carbon microparticles were produced from organosolv lignin at 2000 °C under argon atmosphere following oxidative thermostabilisation at 250 °C. Scanning electron microscopy, X-ray diffraction, small-angle X-ray scattering, and electro-conductivity
Externí odkaz:
https://doaj.org/article/c4d2bf4a2c0b48bf88a63f833aa33074
Autor:
Selim Mrzljak, Benjamin Zanghellini, Lars Gerdes, Ramon Helwing, Reinhard Schuller, Gerhard Sinn, Helga Lichtenegger, Frank Walther, Harald Rennhofer
Publikováno v:
Journal of Composite Materials. 57:1149-1164
Nano-reinforcements in carbon fibre-reinforced polymer (CFRP) have proven to enhance the mechanical properties considering quasi-static, as well as fatigue load and, are a promising option with regard to CFRP performance optimisation. While general k