| Titre : |
Process control in UV curing : in-line monitoring of the acrylate conversion by near-infrared spectroscopy |
| Type de document : |
texte imprimé |
| Auteurs : |
Tom Scherzer, Auteur ; Sabine Muller, Auteur ; Reiner Mehnert, Auteur |
| Année de publication : |
2006 |
| Article en page(s) : |
p. 30-37 |
| Note générale : |
bibliogr. |
| Langues : |
Américain (ame) |
| Index. décimale : |
667.9 Revêtements et enduits |
| Résumé : |
The conversion of double bonds in UV-cured acrylic coatings on various substrates was followed in-line by near-infrared (NIR) reflection spectroscopy. Quantitative data were obtained directly from the intensity of the acrylic overtone band at 1620 nm, which allows very easy calibration of the method. The custom-made probe head of the NIR spectrometer was fitted to several pilot-scale coatings and curing lines, and the conversion was determined in clear and pigmented coatings as well as in scratch-resistant nanocomposite layers on the basis of acrylates. It was shown that reasonable conversion data can be obtained with sufficient time resolution at line speeds of at least 120 m/min. Furthermore, the method has been proven to be useful for the monitoring of the conversion in layers from hot-melt adhesives for PSA applications. Thus, for the first time there is an analytical method available which can be reliably applied for process and quality control in technical curing processes. |
| En ligne : |
https://drive.google.com/file/d/1__z0NjWObZq552oTNkL4b5kIHFYvPVJ-/view?usp=drive [...] |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=5484 |
in COATINGS TECH > Vol. 3, N° 8 (08/2006) . - p. 30-37
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Process control in UV curing : in-line monitoring of the acrylate conversion by near-infrared spectroscopy in COATINGS TECH, Vol. 3, N° 8 (08/2006)
