2017 Volume 29 Issue 1 Pages 6-11
In order to establish a degradation prediction method for plastics, Chemiluminescence, which can detect the initial oxidation of the samples with high sensitivity, was applied for estimating the degradation degree of plastic samples. In this study, polypropylene was used as a sample. The samples were degradated by oxidation in a Chemiluminescence measurement device and in a thermostatic oven. The accumulate rate of peroxides amount on these samples caused by degradation were estimated by Chemiluminescence measurements with Nitrogen atmosphere. The degradation prediction of samples on 60°C was calculated by these rates on 130-150°C. This prediction value by this method showed good agreement with the result from measurements, compared with the prediction method by oxidation induction time.
