Journal cover Journal topic
Journal of Sensors and Sensor Systems An open-access peer-reviewed journal
Journal topic

Journal metrics

Journal metrics

  • CiteScore value: 1.05 CiteScore 1.05
  • SNIP value: 1.044 SNIP 1.044
  • SJR value: 0.289 SJR 0.289
  • IPP value: 0.85 IPP 0.85
  • h5-index value: 8 h5-index 8
  • Scimago H index value: 5 Scimago H index 5
Volume 7, issue 1
J. Sens. Sens. Syst., 7, 21-30, 2018
https://doi.org/10.5194/jsss-7-21-2018
© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.

Special issue: Sensor/IRS2 2017

J. Sens. Sens. Syst., 7, 21-30, 2018
https://doi.org/10.5194/jsss-7-21-2018
© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.

Regular research article 24 Jan 2018

Regular research article | 24 Jan 2018

Single-sided NMR for the measurement of the degree of cross-linking and curing

Norbert Halmen, Christoph Kugler, Eduard Kraus, Benjamin Baudrit, Thomas Hochrein, and Martin Bastian Norbert Halmen et al.
  • SKZ – German Plastics Center, Würzburg, 97076, Germany

Abstract. The degree of cross-linking and curing is one of the most important values concerning the quality of cross-linked polyethylene (PE-X) and the functionality of adhesives and resin-based components. Up to now, the measurement of this property has mostly been time-consuming and usually destructive. Within the shown work the feasibility of single-sided nuclear magnetic resonance (NMR) for the non-destructive determination of the degree of cross-linking and curing as process monitoring was investigated. First results indicate the possibility of distinguishing between PE-X samples with different degrees of cross-linking. The homogeneity of the samples and the curing kinetics of adhesives can also be monitored. The measurements show good agreement with reference tests (wet chemical analysis, differential scanning calorimetry, dielectric analysis). Furthermore, the influence of sample temperature on the characteristic relaxation times can be observed.

Publications Copernicus
Special issue
Download
Short summary
The degree of cross-linking and curing is an important value concerning the quality of cross-linked polyethylene (PE-X) and the functionality of adhesives and resin-based components. During this work the possibility of using single-sided NMR for the determination of this value in a non-destructive and much faster way than with the time-consuming standard laboratory measurements was shown. In addition, the usability of the measurement method for process quality control was investigated.
The degree of cross-linking and curing is an important value concerning the quality of...
Citation
Share