Influence of Processing Conditions on the Thermal Stability and Mechanical Properties of PP/Silica-Lignin Composites

Table 3

The individual steps of the mass loss in relation to particular temperatures for lignin.

Stage	Mass loss (%)	Temperature (°C)	Reason/cause
1	12	20–150	Desorption of physically bound water with the product surface
2	40	150–550	Thermal decomposition of lignin macromolecule
3	13	550–1000	Fragmentation combined with the final thermal decomposition of the compound