Reaction of the carbon filler and binder in production of heating elements

IR spectroscopy showed that the components react on the CF—binder boundary, as indicated by the differences in the intensity and position of the absorption bands of CO32− groups at the frequency of 1805 cm−1 and C=O and >C-O> groups at 1739 and 1241 cm−1. Thermogravimetric analysis showed that the activation energy of degradation of carbon fibre composites (CFC) increases. This indicates formation of thermostable material with a specific structure. The CFC obtained can be classified as difficultly combustible materials.