Prediction of thermal degradation of thermoprotective materials on the basis of their composition and properties of components

Thermal decomposition of thermoprotective materials based on phenolformaldehyde resin and carbon cloth with different contents of components is studied. Physical and mathematical models for the process are proposed. It is shown that the mass loss in carbon fiber reinforced plastics is determined by thermal degradation of the components and can be described by a generic kinetic scheme with a given set of thermokinetic constants. The mass loss of materials can be predicted by solving a system of ordinary differential equations taking into account the mass ratio of the components in the composite material.