| Titre : |
Sharp look at reactive resins : Measuring cell enables characterization of fast-reacting polyurethanes and epoxy resins |
| Type de document : |
texte imprimé |
| Auteurs : |
Philipp Surray, Auteur ; Daniel Schneider, Auteur ; Kai Fischer, Auteur ; Christian Hopmann, Auteur |
| Année de publication : |
2022 |
| Article en page(s) : |
p. 58-61 |
| Langues : |
Anglais (eng) |
| Catégories : |
Caractérisation
Epoxydes
Polymères -- Analyse
Polyuréthanes
Réactivité (chimie)
|
| Index. décimale : |
668.4 Plastiques, vinyles |
| Résumé : |
The processing of highly reactive resin systems requires a detailed understanding of the material behavior during component manufacture. The characterization of systems using DSC to date has reached its limits, especially in the case of polyurethanes. A specially developed measuring cell, on the other hand, delivers better results. |
| Note de contenu : |
- Characterization of highly reactive polymers
- Difficulties of PU characterization
- Measuring cell for the analysis of highly reactive resin systems
- Direct dosing of the reactive material into the measuring chamber
- Measurement results agree with known values
- Choice of baseline still decisive
- Table 1 : Overview of EP and PU characterized by DSC
- Table 2 : Evaluation of the indium calibration of the developed measuringcel
- Fig. 1 : Thermograms of the reactions of an EP and two polyurethanes under non-isothermal conditions: the EP could be fully characterized. This is not the case for the PU
- Fig. 2 : Measuring cell for thermal characterization of highly reactive resin systems: In contrast to DSC, the reactive material is dosed directly into the measuring chamber
- Fig. 3 : Thermograms of the melting process of indium for four heating rates and a sample mass of 300 mg : the measurements strongly correspond to the melting temperatures reported in literature
- Fig. 4 : Comparison of the exothermic reaction of the epoxy resin Epicote 04976 in a DSC measurement and in the IKV measuring cell : the values strongly agree. The choice of the baseline has a great influence on the result of the measurement |
| En ligne : |
https://drive.google.com/file/d/1N-FEpTcfT_UBnx5aPEtOxm1nELt2EEEo/view?usp=drive [...] |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=37971 |
in KUNSTSTOFFE INTERNATIONAL > Vol. 112, N° 4 (2022) . - p. 58-61
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Sharp look at reactive resins in KUNSTSTOFFE INTERNATIONAL, Vol. 112, N° 4 (2022)
