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Saturday, 23 March 2019
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Raw materials & technologies, Science today - coatings tomorrow

Introducing the fundamentals of chemiluminescence

Tuesday, 27 April 2010

The detection of light emitted as Chemiluminescence allows monitoring the kinetics of an ongoing oxidation reaction.

Detection of weathering effects Source: Markus Klaus/Pixelio

Detection of weathering effects Source: Markus Klaus/Pixelio

There is an ever-increasing demand for accelerated tests that will aid in predicting the service life of coatings. Chemiluminescence is a sensitive detection technique that is offered as a method for shortening the time for artificial weathering tests. Chemiluminescence (CL) is -as the word implifies - light generated in a chemical reaction. The detection of light emitted as CL allows monitoring the kinetics of an ongoing oxidation reaction. As a result CL allows following aging reactions, or the other way around, establishing the residual oxidative stabilisation in a system. The most useful approach to use CL for the characterisation of weathering-induced material degradation consists in making CL investigations not only of the unexposed material and of the finally weathered state but to to define several shorter weathering intervals. Please reade more in the CoatingsTech, April 2010, pages 66-71.

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