Zobrazeno 1 - 10
of 25
pro vyhledávání: '"E. Duemichen"'
Publikováno v:
Journal of Chromatography A. 1592:133-142
The TED-GC–MS analysis is a two-step method. A sample is first decomposed in a thermogravimetric analyzer (TGA) and the gaseous decomposition products are then trapped on a solid-phase adsorber. Subsequently, the solid-phase adsorber is analyzed wi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4bc8340eab6d07b1f57c23d32e8b408b
https://doi.org/10.1016/j.chroma.2019.01.033
https://doi.org/10.1016/j.chroma.2019.01.033
Publikováno v:
Thermochimica Acta. 650:8-17
Non-isothermal heating rate kinetics was applied to two epoxy resin systems. In situ near-infrared (NIR) measurements were taken with a heatable NIR cell which allowed the cure to be monitored by characteristic absorption bands. An autocatalyzed reac
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::29c04e94c72ca59a7c2790bd88450568
https://doi.org/10.1016/j.tca.2017.01.010
https://doi.org/10.1016/j.tca.2017.01.010
Publikováno v:
Polymer Degradation and Stability. 174:109032
Thermoset materials characterization is often limited to solid state analytical techniques such as IR, NMR, DSC, TGA and mechanical testing. Alternatively, their off-gassing behavior can also be evaluated using GC based techniques such as TD-GC-MS, a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c691aac5f29b3a10b0c20de6b932b9a2
https://doi.org/10.1016/j.polymdegradstab.2019.109032
https://doi.org/10.1016/j.polymdegradstab.2019.109032
Publikováno v:
Thermochimica Acta. 623:72-79
In this work a novel iterative method for isothermal cure kinetic modelling of an epoxy resin system using differential scanning calorimetry (DSC) technique is presented. To reach the isothermal cure temperature, the sample has to be heated up from a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e3b183d6822d5b6c3114d64b67d7182e
https://doi.org/10.1016/j.tca.2015.11.014
https://doi.org/10.1016/j.tca.2015.11.014
Publikováno v:
Polymer Degradation and Stability. 120:340-356
The thermal molecular degradation of polyamide 66 (PA 66) doped with (partially supported) metal oxide particles (Fe 2 O 3 , ZnO, Al 2 O 3 ) was investigated qualitatively and quantitatively using common analysis techniques like thermogravimetry coup
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::56d02f1decb860a1623a3a0335d0e671
https://doi.org/10.1016/j.polymdegradstab.2015.07.011
https://doi.org/10.1016/j.polymdegradstab.2015.07.011
Autor:
Ulrike Braun, Gerhard Ziegmann, Heinz Sturm, E. Duemichen, Maren Erdmann, Volker Trappe, M. Javdanitehran
Publikováno v:
Thermochimica Acta. 616:49-60
Near-infrared spectroscopy (NIR) turned out to be well suited for analyzing the degree of cure for epoxy systems. In contrast to dynamic scanning calorimetry (DSC), where the released heat of reaction determines the degree of epoxy conversion indirec
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a71bf3660259625dccd3b360b7e0963e
https://doi.org/10.1016/j.tca.2015.08.008
https://doi.org/10.1016/j.tca.2015.08.008
Autor:
Roland Becker, Ulrike Braun, E. Duemichen, Heinz Sturm, Paul Eisentraut, Jana Falkenhagen, Anna Maria Elert
Publikováno v:
Environmental pollution (Barking, Essex : 1987). 231(Pt 2)
In recent years, an increasing trend towards investigating and monitoring the contamination of the environment by microplastics (MP) (plastic pieces < 5 mm) has been observed worldwide. Nonetheless, a reliable methodology that would facilitate and au
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d7493df77c750b92741c35aa8477577e
https://pubmed.ncbi.nlm.nih.gov/28941715
https://pubmed.ncbi.nlm.nih.gov/28941715
Publikováno v:
Journal of Chromatography A. 1354:117-128
For analysis of the gaseous thermal decomposition products of polymers, the common techniques are thermogravimetry, combined with Fourier transformed infrared spectroscopy (TGA-FTIR) and mass spectrometry (TGA-MS). These methods offer a simple approa
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::38f2b20a8295d475362ff5321a1247ca
https://doi.org/10.1016/j.chroma.2014.05.057
https://doi.org/10.1016/j.chroma.2014.05.057
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