Abstract
In this work, using the methods of thermal analysis, we investigated the features of the oxidative decomposition of mixtures of polyethylene and sawdust (in different mass ratios). The results show that during the mixtures decomposition, the effects of interaction between wood and polyethylene are observed, which, apparently, are associated with the chain nature of the oxidation reactions of both components. It was found that the oxidation of mixtures with a polyethylene fraction of 20% or less proceeds without the formation of a significant amount of products of incomplete decomposition of hydrocarbon chains. Thermogravimetric and calorimetric data are compared with data from mass spectrometric analysis of decomposition products. These data indicate competition between the oxidation and thermal cracking of polyethylene. The presence of biomass due to its high reactivity contributes to an increase in the proportion of oxidation in the total decomposition of polyethylene.
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