Effect of stabilisers and lubricant on the thermal decomposition of chlorinated poly(vinyl chloride) (CPVC)

DSC results in air show a broad exothermic peak at ∼500 °C for pure CPVC. For the stabilised-lubricated material, under the same conditions, the residue showed two distinct rates of oxidation from TG and two sharp exothermic peaks (in the range of 450-500 °C and 500-550 °C) from DSC, possibly corresponding to two distinct components in the residue.